./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--hippi--rrunner.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--hippi--rrunner.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1 --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 ed28fe99994604a1173e3d4f71ab5b1542eccb5293571b04f5dd99c12a84c046 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:59:42,970 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:59:43,029 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 08:59:43,035 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:59:43,035 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:59:43,058 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:59:43,058 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:59:43,058 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:59:43,059 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:59:43,059 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:59:43,059 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:59:43,059 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:59:43,059 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:59:43,060 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:59:43,060 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:59:43,060 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:59:43,060 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:59:43,060 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:59:43,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:59:43,060 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:59:43,060 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:59:43,060 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:59:43,060 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:59:43,060 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:59:43,061 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:59:43,061 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:59:43,061 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:59:43,061 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:59:43,061 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:59:43,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:59:43,061 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:59:43,061 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:59:43,061 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:59:43,061 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:59:43,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:59:43,062 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:59:43,062 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:59:43,062 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:59:43,062 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:59:43,062 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:59:43,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:59:43,062 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:59:43,062 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:59:43,062 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:59:43,062 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:59:43,062 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1 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 -> ed28fe99994604a1173e3d4f71ab5b1542eccb5293571b04f5dd99c12a84c046 [2024-12-02 08:59:43,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:59:43,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:59:43,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:59:43,303 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:59:43,303 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:59:43,304 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--hippi--rrunner.ko-entry_point.cil.out.i [2024-12-02 08:59:45,907 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/data/99181baf0/76355c7cdb8c41daa0788251f44d469d/FLAGeedc0099e [2024-12-02 08:59:46,340 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:59:46,341 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--hippi--rrunner.ko-entry_point.cil.out.i [2024-12-02 08:59:46,372 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/data/99181baf0/76355c7cdb8c41daa0788251f44d469d/FLAGeedc0099e [2024-12-02 08:59:46,485 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/data/99181baf0/76355c7cdb8c41daa0788251f44d469d [2024-12-02 08:59:46,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:59:46,488 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:59:46,490 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:59:46,490 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:59:46,494 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:59:46,495 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:59:46" (1/1) ... [2024-12-02 08:59:46,496 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76c017ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:59:46, skipping insertion in model container [2024-12-02 08:59:46,496 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:59:46" (1/1) ... [2024-12-02 08:59:46,581 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:59:47,862 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--hippi--rrunner.ko-entry_point.cil.out.i[275280,275293] [2024-12-02 08:59:47,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:59:47,951 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:59:48,091 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"); [6231] [2024-12-02 08:59:48,092 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)); [6238] [2024-12-02 08:59:48,093 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [6251] [2024-12-02 08:59:48,098 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; nop": : : "memory"); [6371] [2024-12-02 08:59:48,099 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [6424] [2024-12-02 08:59:48,100 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [6431] [2024-12-02 08:59:48,109 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [6570-6571] [2024-12-02 08:59:48,111 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [6599-6600] [2024-12-02 08:59:48,112 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (108), "i" (12UL)); [6629-6630] [2024-12-02 08:59:48,114 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (120), "i" (12UL)); [6659-6660] [2024-12-02 08:59:48,124 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6965] [2024-12-02 08:59:48,125 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6976] [2024-12-02 08:59:48,126 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6987] [2024-12-02 08:59:48,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7204] [2024-12-02 08:59:48,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7207] [2024-12-02 08:59:48,142 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7268] [2024-12-02 08:59:48,143 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7271] [2024-12-02 08:59:48,143 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7274] [2024-12-02 08:59:48,144 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7295] [2024-12-02 08:59:48,145 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7300] [2024-12-02 08:59:48,145 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7303] [2024-12-02 08:59:48,146 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7313] [2024-12-02 08:59:48,147 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7354] [2024-12-02 08:59:48,148 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7359] [2024-12-02 08:59:48,148 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7366] [2024-12-02 08:59:48,149 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7375] [2024-12-02 08:59:48,149 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7400] [2024-12-02 08:59:48,153 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7466] [2024-12-02 08:59:48,156 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7527] [2024-12-02 08:59:48,156 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7530] [2024-12-02 08:59:48,159 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7562] [2024-12-02 08:59:48,163 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7633] [2024-12-02 08:59:48,164 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7651] [2024-12-02 08:59:48,165 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7657] [2024-12-02 08:59:48,166 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7674] [2024-12-02 08:59:48,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7684] [2024-12-02 08:59:48,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7690] [2024-12-02 08:59:48,168 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7696] [2024-12-02 08:59:48,168 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7702] [2024-12-02 08:59:48,171 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7741] [2024-12-02 08:59:48,171 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7747] [2024-12-02 08:59:48,172 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7753] [2024-12-02 08:59:48,174 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7771] [2024-12-02 08:59:48,178 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7852] [2024-12-02 08:59:48,182 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7918] [2024-12-02 08:59:48,183 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7936] [2024-12-02 08:59:48,186 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8018] [2024-12-02 08:59:48,189 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8080] [2024-12-02 08:59:48,204 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8345] [2024-12-02 08:59:48,207 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [8404] [2024-12-02 08:59:48,207 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [8406] [2024-12-02 08:59:48,207 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [8414] [2024-12-02 08:59:48,209 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [8451] [2024-12-02 08:59:48,209 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [8453] [2024-12-02 08:59:48,209 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [8470] [2024-12-02 08:59:48,214 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)rq->ifr_ifru.ifru_data): "ebx"); [8605] [2024-12-02 08:59:48,215 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)rq->ifr_ifru.ifru_data): "ebx"); [8608] [2024-12-02 08:59:48,215 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)rq->ifr_ifru.ifru_data): "ebx"); [8611] [2024-12-02 08:59:48,215 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)rq->ifr_ifru.ifru_data): "ebx"); [8614] [2024-12-02 08:59:48,215 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)rq->ifr_ifru.ifru_data): "ebx"); [8617] [2024-12-02 08:59:48,230 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--hippi--rrunner.ko-entry_point.cil.out.i[275280,275293] [2024-12-02 08:59:48,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:59:48,339 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:59:48,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:59:48 WrapperNode [2024-12-02 08:59:48,340 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:59:48,341 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:59:48,341 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:59:48,341 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:59:48,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:59:48" (1/1) ... [2024-12-02 08:59:48,392 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:59:48" (1/1) ... [2024-12-02 08:59:48,521 INFO L138 Inliner]: procedures = 223, calls = 1333, calls flagged for inlining = 123, calls inlined = 120, statements flattened = 4081 [2024-12-02 08:59:48,522 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:59:48,522 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:59:48,522 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:59:48,522 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:59:48,532 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:59:48" (1/1) ... [2024-12-02 08:59:48,532 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:59:48" (1/1) ... [2024-12-02 08:59:48,554 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:59:48" (1/1) ... [2024-12-02 08:59:49,135 INFO L175 MemorySlicer]: Split 625 memory accesses to 10 slices as follows [2, 6, 455, 8, 89, 8, 5, 5, 4, 43]. 73 percent of accesses are in the largest equivalence class. The 46 initializations are split as follows [2, 0, 8, 8, 20, 8, 0, 0, 0, 0]. The 306 writes are split as follows [0, 1, 189, 0, 69, 0, 3, 0, 1, 43]. [2024-12-02 08:59:49,135 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:59:48" (1/1) ... [2024-12-02 08:59:49,136 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:59:48" (1/1) ... [2024-12-02 08:59:49,206 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:59:48" (1/1) ... [2024-12-02 08:59:49,211 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:59:48" (1/1) ... [2024-12-02 08:59:49,225 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:59:48" (1/1) ... [2024-12-02 08:59:49,243 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:59:48" (1/1) ... [2024-12-02 08:59:49,252 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:59:48" (1/1) ... [2024-12-02 08:59:49,273 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:59:49,274 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:59:49,274 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:59:49,274 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:59:49,275 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:59:48" (1/1) ... [2024-12-02 08:59:49,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:59:49,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:59:49,304 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:59:49,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:59:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2024-12-02 08:59:49,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2024-12-02 08:59:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-12-02 08:59:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-12-02 08:59:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-12-02 08:59:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-12-02 08:59:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-12-02 08:59:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-12-02 08:59:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-12-02 08:59:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-12-02 08:59:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-12-02 08:59:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-12-02 08:59:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2024-12-02 08:59:49,330 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2024-12-02 08:59:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 08:59:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 08:59:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 08:59:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 08:59:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 08:59:49,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 08:59:49,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 08:59:49,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 08:59:49,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-12-02 08:59:49,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-12-02 08:59:49,331 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2024-12-02 08:59:49,331 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2024-12-02 08:59:49,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-12-02 08:59:49,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-12-02 08:59:49,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-12-02 08:59:49,331 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-12-02 08:59:49,331 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-12-02 08:59:49,332 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-12-02 08:59:49,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2024-12-02 08:59:49,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2024-12-02 08:59:49,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-02 08:59:49,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-02 08:59:49,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-12-02 08:59:49,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-12-02 08:59:49,332 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2024-12-02 08:59:49,332 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2024-12-02 08:59:49,332 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2024-12-02 08:59:49,332 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2024-12-02 08:59:49,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-12-02 08:59:49,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-12-02 08:59:49,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-12-02 08:59:49,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-12-02 08:59:49,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-12-02 08:59:49,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-12-02 08:59:49,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-12-02 08:59:49,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-12-02 08:59:49,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-12-02 08:59:49,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-12-02 08:59:49,333 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-12-02 08:59:49,333 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-12-02 08:59:49,333 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-12-02 08:59:49,333 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-12-02 08:59:49,333 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-12-02 08:59:49,333 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-12-02 08:59:49,333 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-12-02 08:59:49,333 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-12-02 08:59:49,333 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-12-02 08:59:49,333 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-12-02 08:59:49,333 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:59:49,333 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:59:49,333 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-12-02 08:59:49,333 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-12-02 08:59:49,333 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2024-12-02 08:59:49,333 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2024-12-02 08:59:49,333 INFO L130 BoogieDeclarations]: Found specification of procedure rr_init1 [2024-12-02 08:59:49,333 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_init1 [2024-12-02 08:59:49,333 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-12-02 08:59:49,334 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-12-02 08:59:49,334 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2024-12-02 08:59:49,334 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2024-12-02 08:59:49,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 08:59:49,334 INFO L130 BoogieDeclarations]: Found specification of procedure rr_ioctl [2024-12-02 08:59:49,334 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_ioctl [2024-12-02 08:59:49,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 08:59:49,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 08:59:49,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 08:59:49,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 08:59:49,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 08:59:49,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 08:59:49,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 08:59:49,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 08:59:49,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-02 08:59:49,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-12-02 08:59:49,335 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2024-12-02 08:59:49,335 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2024-12-02 08:59:49,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2024-12-02 08:59:49,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2024-12-02 08:59:49,336 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-12-02 08:59:49,336 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-12-02 08:59:49,336 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2024-12-02 08:59:49,336 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2024-12-02 08:59:49,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 08:59:49,336 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-12-02 08:59:49,336 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-12-02 08:59:49,336 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2024-12-02 08:59:49,336 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2024-12-02 08:59:49,336 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2024-12-02 08:59:49,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2024-12-02 08:59:49,337 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-12-02 08:59:49,337 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-12-02 08:59:49,337 INFO L130 BoogieDeclarations]: Found specification of procedure set_rraddr [2024-12-02 08:59:49,337 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rraddr [2024-12-02 08:59:49,337 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-12-02 08:59:49,337 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-12-02 08:59:49,337 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-12-02 08:59:49,337 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-12-02 08:59:49,337 INFO L130 BoogieDeclarations]: Found specification of procedure rr_read_eeprom_word [2024-12-02 08:59:49,337 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_read_eeprom_word [2024-12-02 08:59:49,337 INFO L130 BoogieDeclarations]: Found specification of procedure hippi_mac_addr [2024-12-02 08:59:49,337 INFO L138 BoogieDeclarations]: Found implementation of procedure hippi_mac_addr [2024-12-02 08:59:49,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-12-02 08:59:49,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-12-02 08:59:49,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-12-02 08:59:49,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-12-02 08:59:49,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-12-02 08:59:49,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-12-02 08:59:49,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-12-02 08:59:49,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-12-02 08:59:49,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-12-02 08:59:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-12-02 08:59:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2024-12-02 08:59:49,338 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2024-12-02 08:59:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure rr_read_eeprom [2024-12-02 08:59:49,338 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_read_eeprom [2024-12-02 08:59:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 08:59:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 08:59:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 08:59:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 08:59:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 08:59:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 08:59:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 08:59:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 08:59:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-12-02 08:59:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-12-02 08:59:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 08:59:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 08:59:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 08:59:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 08:59:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 08:59:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 08:59:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 08:59:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 08:59:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 08:59:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-02 08:59:49,338 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-12-02 08:59:49,338 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-12-02 08:59:49,339 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2024-12-02 08:59:49,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2024-12-02 08:59:49,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-12-02 08:59:49,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-12-02 08:59:49,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-12-02 08:59:49,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-12-02 08:59:49,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-12-02 08:59:49,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-12-02 08:59:49,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-12-02 08:59:49,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-12-02 08:59:49,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2024-12-02 08:59:49,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2024-12-02 08:59:49,339 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-12-02 08:59:49,339 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-12-02 08:59:49,339 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-12-02 08:59:49,340 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-12-02 08:59:49,340 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-12-02 08:59:49,340 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-12-02 08:59:49,340 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-12-02 08:59:49,340 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-12-02 08:59:49,340 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2024-12-02 08:59:49,340 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2024-12-02 08:59:49,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2024-12-02 08:59:49,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2024-12-02 08:59:49,340 INFO L130 BoogieDeclarations]: Found specification of procedure hippi_change_mtu [2024-12-02 08:59:49,340 INFO L138 BoogieDeclarations]: Found implementation of procedure hippi_change_mtu [2024-12-02 08:59:49,340 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-12-02 08:59:49,340 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-12-02 08:59:49,340 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2024-12-02 08:59:49,340 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2024-12-02 08:59:49,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 08:59:49,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 08:59:49,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 08:59:49,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 08:59:49,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 08:59:49,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 08:59:49,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 08:59:49,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 08:59:49,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 08:59:49,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-02 08:59:49,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-12-02 08:59:49,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-12-02 08:59:49,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-12-02 08:59:49,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-12-02 08:59:49,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 08:59:49,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-12-02 08:59:49,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-12-02 08:59:49,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:59:49,341 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-12-02 08:59:49,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-12-02 08:59:49,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 08:59:49,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 08:59:49,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 08:59:49,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 08:59:49,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 08:59:49,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 08:59:49,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 08:59:49,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 08:59:49,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-02 08:59:49,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-12-02 08:59:49,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2024-12-02 08:59:49,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2024-12-02 08:59:49,341 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2024-12-02 08:59:49,341 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2024-12-02 08:59:49,341 INFO L130 BoogieDeclarations]: Found specification of procedure rr_raz_tx [2024-12-02 08:59:49,341 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_raz_tx [2024-12-02 08:59:49,341 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2024-12-02 08:59:49,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2024-12-02 08:59:49,342 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2024-12-02 08:59:49,342 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2024-12-02 08:59:49,342 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-12-02 08:59:49,342 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-12-02 08:59:49,342 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2024-12-02 08:59:49,342 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2024-12-02 08:59:49,342 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2024-12-02 08:59:49,342 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2024-12-02 08:59:49,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:59:49,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 08:59:49,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 08:59:49,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 08:59:49,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 08:59:49,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 08:59:49,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 08:59:49,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 08:59:49,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 08:59:49,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 08:59:49,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:59:49,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:59:49,342 INFO L130 BoogieDeclarations]: Found specification of procedure rr_raz_rx [2024-12-02 08:59:49,342 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_raz_rx [2024-12-02 08:59:49,928 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:59:49,931 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:59:50,036 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-12-02 08:59:58,919 INFO L? ?]: Removed 1833 outVars from TransFormulas that were not future-live. [2024-12-02 08:59:58,919 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:59:58,953 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:59:58,953 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 08:59:58,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:59:58 BoogieIcfgContainer [2024-12-02 08:59:58,954 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:59:58,956 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:59:58,956 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:59:58,961 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:59:58,961 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:59:46" (1/3) ... [2024-12-02 08:59:58,961 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aeb6bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:59:58, skipping insertion in model container [2024-12-02 08:59:58,961 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:59:48" (2/3) ... [2024-12-02 08:59:58,962 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aeb6bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:59:58, skipping insertion in model container [2024-12-02 08:59:58,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:59:58" (3/3) ... [2024-12-02 08:59:58,963 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--hippi--rrunner.ko-entry_point.cil.out.i [2024-12-02 08:59:58,977 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:59:58,980 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--hippi--rrunner.ko-entry_point.cil.out.i that has 73 procedures, 1522 locations, 1 initial locations, 30 loop locations, and 1 error locations. [2024-12-02 08:59:59,060 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:59:59,071 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;@57b91f8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:59:59,071 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:59:59,079 INFO L276 IsEmpty]: Start isEmpty. Operand has 1444 states, 957 states have (on average 1.3103448275862069) internal successors, (1254), 982 states have internal predecessors, (1254), 431 states have call successors, (431), 55 states have call predecessors, (431), 54 states have return successors, (425), 415 states have call predecessors, (425), 425 states have call successors, (425) [2024-12-02 08:59:59,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 08:59:59,090 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:59:59,091 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:59:59,091 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:59:59,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:59:59,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1607751083, now seen corresponding path program 1 times [2024-12-02 08:59:59,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:59:59,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863863977] [2024-12-02 08:59:59,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:59:59,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:04,139 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-12-02 09:00:04,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:04,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863863977] [2024-12-02 09:00:04,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863863977] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:00:04,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416510369] [2024-12-02 09:00:04,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:04,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:00:04,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:00:04,142 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:00:04,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 09:00:09,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:09,030 INFO L256 TraceCheckSpWp]: Trace formula consists of 2839 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 09:00:09,037 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:00:09,053 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-12-02 09:00:09,053 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:00:09,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416510369] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:00:09,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 09:00:09,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 09:00:09,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266873120] [2024-12-02 09:00:09,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:00:09,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 09:00:09,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:09,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 09:00:09,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 09:00:09,078 INFO L87 Difference]: Start difference. First operand has 1444 states, 957 states have (on average 1.3103448275862069) internal successors, (1254), 982 states have internal predecessors, (1254), 431 states have call successors, (431), 55 states have call predecessors, (431), 54 states have return successors, (425), 415 states have call predecessors, (425), 425 states have call successors, (425) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 09:00:09,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:09,206 INFO L93 Difference]: Finished difference Result 2881 states and 4267 transitions. [2024-12-02 09:00:09,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 09:00:09,208 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 119 [2024-12-02 09:00:09,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:09,227 INFO L225 Difference]: With dead ends: 2881 [2024-12-02 09:00:09,227 INFO L226 Difference]: Without dead ends: 1421 [2024-12-02 09:00:09,237 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 09:00:09,239 INFO L435 NwaCegarLoop]: 2085 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2085 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:09,240 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2085 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:00:09,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2024-12-02 09:00:09,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1421. [2024-12-02 09:00:09,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1421 states, 943 states have (on average 1.2810180275715801) internal successors, (1208), 960 states have internal predecessors, (1208), 424 states have call successors, (424), 54 states have call predecessors, (424), 53 states have return successors, (423), 413 states have call predecessors, (423), 423 states have call successors, (423) [2024-12-02 09:00:09,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1421 states to 1421 states and 2055 transitions. [2024-12-02 09:00:09,362 INFO L78 Accepts]: Start accepts. Automaton has 1421 states and 2055 transitions. Word has length 119 [2024-12-02 09:00:09,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:09,362 INFO L471 AbstractCegarLoop]: Abstraction has 1421 states and 2055 transitions. [2024-12-02 09:00:09,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 09:00:09,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1421 states and 2055 transitions. [2024-12-02 09:00:09,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 09:00:09,368 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:09,368 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:00:09,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-12-02 09:00:09,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 09:00:09,569 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:00:09,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:09,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1189962419, now seen corresponding path program 1 times [2024-12-02 09:00:09,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:09,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347830086] [2024-12-02 09:00:09,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:09,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:14,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:14,384 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2024-12-02 09:00:14,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:14,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347830086] [2024-12-02 09:00:14,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347830086] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:00:14,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:00:14,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 09:00:14,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741120508] [2024-12-02 09:00:14,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:00:14,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 09:00:14,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:14,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 09:00:14,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 09:00:14,386 INFO L87 Difference]: Start difference. First operand 1421 states and 2055 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 09:00:14,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:14,903 INFO L93 Difference]: Finished difference Result 3771 states and 5438 transitions. [2024-12-02 09:00:14,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 09:00:14,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 119 [2024-12-02 09:00:14,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:14,922 INFO L225 Difference]: With dead ends: 3771 [2024-12-02 09:00:14,923 INFO L226 Difference]: Without dead ends: 2374 [2024-12-02 09:00:14,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 09:00:14,931 INFO L435 NwaCegarLoop]: 2063 mSDtfsCounter, 1402 mSDsluCounter, 1958 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1402 SdHoareTripleChecker+Valid, 4021 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:14,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1402 Valid, 4021 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 09:00:14,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2374 states. [2024-12-02 09:00:15,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2374 to 2364. [2024-12-02 09:00:15,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2364 states, 1568 states have (on average 1.278061224489796) internal successors, (2004), 1604 states have internal predecessors, (2004), 700 states have call successors, (700), 96 states have call predecessors, (700), 95 states have return successors, (699), 676 states have call predecessors, (699), 699 states have call successors, (699) [2024-12-02 09:00:15,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2364 states to 2364 states and 3403 transitions. [2024-12-02 09:00:15,080 INFO L78 Accepts]: Start accepts. Automaton has 2364 states and 3403 transitions. Word has length 119 [2024-12-02 09:00:15,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:15,081 INFO L471 AbstractCegarLoop]: Abstraction has 2364 states and 3403 transitions. [2024-12-02 09:00:15,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 09:00:15,081 INFO L276 IsEmpty]: Start isEmpty. Operand 2364 states and 3403 transitions. [2024-12-02 09:00:15,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 09:00:15,085 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:15,085 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:00:15,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 09:00:15,085 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:00:15,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:15,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1854241313, now seen corresponding path program 1 times [2024-12-02 09:00:15,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:15,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377756239] [2024-12-02 09:00:15,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:15,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:19,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:19,612 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 09:00:19,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:19,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377756239] [2024-12-02 09:00:19,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377756239] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:00:19,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:00:19,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 09:00:19,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213136330] [2024-12-02 09:00:19,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:00:19,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 09:00:19,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:19,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 09:00:19,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 09:00:19,615 INFO L87 Difference]: Start difference. First operand 2364 states and 3403 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 09:00:20,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:20,066 INFO L93 Difference]: Finished difference Result 7056 states and 10161 transitions. [2024-12-02 09:00:20,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 09:00:20,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 144 [2024-12-02 09:00:20,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:20,090 INFO L225 Difference]: With dead ends: 7056 [2024-12-02 09:00:20,090 INFO L226 Difference]: Without dead ends: 4716 [2024-12-02 09:00:20,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 09:00:20,101 INFO L435 NwaCegarLoop]: 2054 mSDtfsCounter, 2031 mSDsluCounter, 6114 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2032 SdHoareTripleChecker+Valid, 8168 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:20,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2032 Valid, 8168 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 09:00:20,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4716 states. [2024-12-02 09:00:20,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4716 to 4709. [2024-12-02 09:00:20,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4709 states, 3126 states have (on average 1.2773512476007678) internal successors, (3993), 3198 states have internal predecessors, (3993), 1392 states have call successors, (1392), 191 states have call predecessors, (1392), 190 states have return successors, (1391), 1345 states have call predecessors, (1391), 1391 states have call successors, (1391) [2024-12-02 09:00:20,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4709 states to 4709 states and 6776 transitions. [2024-12-02 09:00:20,294 INFO L78 Accepts]: Start accepts. Automaton has 4709 states and 6776 transitions. Word has length 144 [2024-12-02 09:00:20,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:20,294 INFO L471 AbstractCegarLoop]: Abstraction has 4709 states and 6776 transitions. [2024-12-02 09:00:20,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 09:00:20,294 INFO L276 IsEmpty]: Start isEmpty. Operand 4709 states and 6776 transitions. [2024-12-02 09:00:20,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 09:00:20,297 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:20,297 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:00:20,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 09:00:20,297 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:00:20,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:20,298 INFO L85 PathProgramCache]: Analyzing trace with hash -883947300, now seen corresponding path program 1 times [2024-12-02 09:00:20,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:20,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617348317] [2024-12-02 09:00:20,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:20,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:24,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:24,950 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 09:00:24,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:24,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617348317] [2024-12-02 09:00:24,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617348317] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:00:24,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:00:24,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 09:00:24,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716506927] [2024-12-02 09:00:24,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:00:24,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 09:00:24,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:24,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 09:00:24,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 09:00:24,952 INFO L87 Difference]: Start difference. First operand 4709 states and 6776 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 09:00:25,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:25,891 INFO L93 Difference]: Finished difference Result 14107 states and 20300 transitions. [2024-12-02 09:00:25,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 09:00:25,891 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 146 [2024-12-02 09:00:25,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:25,961 INFO L225 Difference]: With dead ends: 14107 [2024-12-02 09:00:25,961 INFO L226 Difference]: Without dead ends: 9422 [2024-12-02 09:00:25,995 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 09:00:25,996 INFO L435 NwaCegarLoop]: 2052 mSDtfsCounter, 2033 mSDsluCounter, 6110 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2034 SdHoareTripleChecker+Valid, 8162 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:25,996 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2034 Valid, 8162 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 09:00:26,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9422 states. [2024-12-02 09:00:26,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9422 to 9411. [2024-12-02 09:00:26,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9411 states, 6252 states have (on average 1.2767114523352527) internal successors, (7982), 6396 states have internal predecessors, (7982), 2776 states have call successors, (2776), 383 states have call predecessors, (2776), 382 states have return successors, (2775), 2683 states have call predecessors, (2775), 2775 states have call successors, (2775) [2024-12-02 09:00:26,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9411 states to 9411 states and 13533 transitions. [2024-12-02 09:00:26,643 INFO L78 Accepts]: Start accepts. Automaton has 9411 states and 13533 transitions. Word has length 146 [2024-12-02 09:00:26,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:26,644 INFO L471 AbstractCegarLoop]: Abstraction has 9411 states and 13533 transitions. [2024-12-02 09:00:26,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 09:00:26,644 INFO L276 IsEmpty]: Start isEmpty. Operand 9411 states and 13533 transitions. [2024-12-02 09:00:26,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-02 09:00:26,647 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:26,647 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:00:26,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 09:00:26,647 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:00:26,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:26,647 INFO L85 PathProgramCache]: Analyzing trace with hash -41019806, now seen corresponding path program 1 times [2024-12-02 09:00:26,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:26,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215797657] [2024-12-02 09:00:26,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:26,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:30,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:31,405 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 09:00:31,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:31,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215797657] [2024-12-02 09:00:31,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215797657] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:00:31,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:00:31,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 09:00:31,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811228594] [2024-12-02 09:00:31,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:00:31,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 09:00:31,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:31,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 09:00:31,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 09:00:31,407 INFO L87 Difference]: Start difference. First operand 9411 states and 13533 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 09:00:32,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:32,086 INFO L93 Difference]: Finished difference Result 28239 states and 40600 transitions. [2024-12-02 09:00:32,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 09:00:32,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 145 [2024-12-02 09:00:32,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:32,173 INFO L225 Difference]: With dead ends: 28239 [2024-12-02 09:00:32,173 INFO L226 Difference]: Without dead ends: 18852 [2024-12-02 09:00:32,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 09:00:32,207 INFO L435 NwaCegarLoop]: 2053 mSDtfsCounter, 2032 mSDsluCounter, 6112 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2033 SdHoareTripleChecker+Valid, 8165 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:32,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2033 Valid, 8165 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 09:00:32,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18852 states. [2024-12-02 09:00:32,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18852 to 18833. [2024-12-02 09:00:32,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18833 states, 12518 states have (on average 1.2757629014219525) internal successors, (15970), 12806 states have internal predecessors, (15970), 5544 states have call successors, (5544), 771 states have call predecessors, (5544), 770 states have return successors, (5543), 5359 states have call predecessors, (5543), 5543 states have call successors, (5543) [2024-12-02 09:00:32,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18833 states to 18833 states and 27057 transitions. [2024-12-02 09:00:32,950 INFO L78 Accepts]: Start accepts. Automaton has 18833 states and 27057 transitions. Word has length 145 [2024-12-02 09:00:32,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:32,951 INFO L471 AbstractCegarLoop]: Abstraction has 18833 states and 27057 transitions. [2024-12-02 09:00:32,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 09:00:32,952 INFO L276 IsEmpty]: Start isEmpty. Operand 18833 states and 27057 transitions. [2024-12-02 09:00:32,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 09:00:32,954 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:32,954 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:00:32,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 09:00:32,954 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:00:32,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:32,954 INFO L85 PathProgramCache]: Analyzing trace with hash -705103739, now seen corresponding path program 1 times [2024-12-02 09:00:32,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:32,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260042452] [2024-12-02 09:00:32,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:32,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:37,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:37,524 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 09:00:37,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:37,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260042452] [2024-12-02 09:00:37,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260042452] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:00:37,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:00:37,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 09:00:37,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954297026] [2024-12-02 09:00:37,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:00:37,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 09:00:37,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:37,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 09:00:37,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 09:00:37,525 INFO L87 Difference]: Start difference. First operand 18833 states and 27057 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 09:00:38,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:38,460 INFO L93 Difference]: Finished difference Result 55929 states and 80296 transitions. [2024-12-02 09:00:38,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 09:00:38,461 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 143 [2024-12-02 09:00:38,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:38,661 INFO L225 Difference]: With dead ends: 55929 [2024-12-02 09:00:38,661 INFO L226 Difference]: Without dead ends: 37120 [2024-12-02 09:00:38,794 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 09:00:38,794 INFO L435 NwaCegarLoop]: 2651 mSDtfsCounter, 2030 mSDsluCounter, 7305 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2031 SdHoareTripleChecker+Valid, 9956 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:38,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2031 Valid, 9956 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 09:00:38,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37120 states. [2024-12-02 09:00:40,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37120 to 36879. [2024-12-02 09:00:40,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36879 states, 24468 states have (on average 1.2754618276933136) internal successors, (31208), 25056 states have internal predecessors, (31208), 10887 states have call successors, (10887), 1524 states have call predecessors, (10887), 1523 states have return successors, (10886), 10498 states have call predecessors, (10886), 10886 states have call successors, (10886) [2024-12-02 09:00:40,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36879 states to 36879 states and 52981 transitions. [2024-12-02 09:00:40,462 INFO L78 Accepts]: Start accepts. Automaton has 36879 states and 52981 transitions. Word has length 143 [2024-12-02 09:00:40,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:40,462 INFO L471 AbstractCegarLoop]: Abstraction has 36879 states and 52981 transitions. [2024-12-02 09:00:40,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 09:00:40,462 INFO L276 IsEmpty]: Start isEmpty. Operand 36879 states and 52981 transitions. [2024-12-02 09:00:40,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-12-02 09:00:40,465 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:40,465 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:00:40,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 09:00:40,466 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:00:40,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:40,466 INFO L85 PathProgramCache]: Analyzing trace with hash -419041411, now seen corresponding path program 1 times [2024-12-02 09:00:40,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:40,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858142903] [2024-12-02 09:00:40,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:40,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:44,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:45,769 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-12-02 09:00:45,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:45,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858142903] [2024-12-02 09:00:45,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858142903] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:00:45,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236078127] [2024-12-02 09:00:45,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:45,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:00:45,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:00:45,771 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:00:45,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 09:00:50,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:50,452 INFO L256 TraceCheckSpWp]: Trace formula consists of 3060 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 09:00:50,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:00:50,608 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-12-02 09:00:50,608 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:00:50,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236078127] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:00:50,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 09:00:50,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-12-02 09:00:50,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590958895] [2024-12-02 09:00:50,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:00:50,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 09:00:50,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:50,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 09:00:50,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 09:00:50,610 INFO L87 Difference]: Start difference. First operand 36879 states and 52981 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 09:00:51,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:51,106 INFO L93 Difference]: Finished difference Result 36914 states and 53047 transitions. [2024-12-02 09:00:51,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 09:00:51,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 156 [2024-12-02 09:00:51,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:51,238 INFO L225 Difference]: With dead ends: 36914 [2024-12-02 09:00:51,238 INFO L226 Difference]: Without dead ends: 36911 [2024-12-02 09:00:51,255 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 09:00:51,256 INFO L435 NwaCegarLoop]: 2054 mSDtfsCounter, 0 mSDsluCounter, 2049 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4103 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:51,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4103 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:00:51,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36911 states. [2024-12-02 09:00:52,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36911 to 36911. [2024-12-02 09:00:52,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36911 states, 24500 states have (on average 1.2751020408163265) internal successors, (31240), 25088 states have internal predecessors, (31240), 10887 states have call successors, (10887), 1524 states have call predecessors, (10887), 1523 states have return successors, (10886), 10498 states have call predecessors, (10886), 10886 states have call successors, (10886) [2024-12-02 09:00:52,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36911 states to 36911 states and 53013 transitions. [2024-12-02 09:00:52,541 INFO L78 Accepts]: Start accepts. Automaton has 36911 states and 53013 transitions. Word has length 156 [2024-12-02 09:00:52,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:52,542 INFO L471 AbstractCegarLoop]: Abstraction has 36911 states and 53013 transitions. [2024-12-02 09:00:52,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 09:00:52,542 INFO L276 IsEmpty]: Start isEmpty. Operand 36911 states and 53013 transitions. [2024-12-02 09:00:52,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 09:00:52,544 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:52,544 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:00:52,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 09:00:52,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-12-02 09:00:52,744 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:00:52,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:52,745 INFO L85 PathProgramCache]: Analyzing trace with hash 494900706, now seen corresponding path program 1 times [2024-12-02 09:00:52,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:52,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090925355] [2024-12-02 09:00:52,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:52,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:56,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:57,467 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-12-02 09:00:57,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:57,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090925355] [2024-12-02 09:00:57,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090925355] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:00:57,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893228827] [2024-12-02 09:00:57,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:57,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:00:57,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:00:57,469 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:00:57,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 09:01:02,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:02,323 INFO L256 TraceCheckSpWp]: Trace formula consists of 3065 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 09:01:02,329 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:01:02,949 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 09:01:02,949 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:01:02,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893228827] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:02,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 09:01:02,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2024-12-02 09:01:02,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037277110] [2024-12-02 09:01:02,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:02,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 09:01:02,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:02,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 09:01:02,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-12-02 09:01:02,950 INFO L87 Difference]: Start difference. First operand 36911 states and 53013 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 09:01:04,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:04,752 INFO L93 Difference]: Finished difference Result 92301 states and 132507 transitions. [2024-12-02 09:01:04,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 09:01:04,752 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 158 [2024-12-02 09:01:04,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:04,958 INFO L225 Difference]: With dead ends: 92301 [2024-12-02 09:01:04,958 INFO L226 Difference]: Without dead ends: 55414 [2024-12-02 09:01:05,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2024-12-02 09:01:05,236 INFO L435 NwaCegarLoop]: 2629 mSDtfsCounter, 2067 mSDsluCounter, 12530 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2071 SdHoareTripleChecker+Valid, 15159 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:05,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2071 Valid, 15159 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 09:01:05,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55414 states. [2024-12-02 09:01:06,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55414 to 55119. [2024-12-02 09:01:06,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55119 states, 36596 states have (on average 1.275521914963384) internal successors, (46679), 37484 states have internal predecessors, (46679), 16230 states have call successors, (16230), 2277 states have call predecessors, (16230), 2292 states have return successors, (16269), 15653 states have call predecessors, (16269), 16229 states have call successors, (16269) [2024-12-02 09:01:07,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55119 states to 55119 states and 79178 transitions. [2024-12-02 09:01:07,131 INFO L78 Accepts]: Start accepts. Automaton has 55119 states and 79178 transitions. Word has length 158 [2024-12-02 09:01:07,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:07,131 INFO L471 AbstractCegarLoop]: Abstraction has 55119 states and 79178 transitions. [2024-12-02 09:01:07,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 09:01:07,131 INFO L276 IsEmpty]: Start isEmpty. Operand 55119 states and 79178 transitions. [2024-12-02 09:01:07,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-12-02 09:01:07,134 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:07,134 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:07,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 09:01:07,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:01:07,334 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:07,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:07,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1883350179, now seen corresponding path program 1 times [2024-12-02 09:01:07,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:07,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808589844] [2024-12-02 09:01:07,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:07,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:12,337 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 09:01:12,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:12,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808589844] [2024-12-02 09:01:12,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808589844] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:01:12,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1272297858] [2024-12-02 09:01:12,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:12,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:01:12,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:01:12,340 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:01:12,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 09:01:16,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:16,940 INFO L256 TraceCheckSpWp]: Trace formula consists of 3067 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 09:01:16,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:01:17,530 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 09:01:17,530 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:01:17,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1272297858] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:17,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 09:01:17,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-12-02 09:01:17,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645302762] [2024-12-02 09:01:17,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:17,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 09:01:17,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:17,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 09:01:17,531 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 09:01:17,531 INFO L87 Difference]: Start difference. First operand 55119 states and 79178 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 09:01:19,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:19,612 INFO L93 Difference]: Finished difference Result 128823 states and 184929 transitions. [2024-12-02 09:01:19,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 09:01:19,612 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 159 [2024-12-02 09:01:19,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:19,923 INFO L225 Difference]: With dead ends: 128823 [2024-12-02 09:01:19,923 INFO L226 Difference]: Without dead ends: 73728 [2024-12-02 09:01:20,072 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-12-02 09:01:20,072 INFO L435 NwaCegarLoop]: 2652 mSDtfsCounter, 2067 mSDsluCounter, 12610 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2071 SdHoareTripleChecker+Valid, 15262 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:20,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2071 Valid, 15262 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 09:01:20,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73728 states. [2024-12-02 09:01:22,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73728 to 73391. [2024-12-02 09:01:22,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73391 states, 48732 states have (on average 1.27550685381269) internal successors, (62158), 49952 states have internal predecessors, (62158), 21573 states have call successors, (21573), 3030 states have call predecessors, (21573), 3085 states have return successors, (21676), 20800 states have call predecessors, (21676), 21572 states have call successors, (21676) [2024-12-02 09:01:22,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73391 states to 73391 states and 105407 transitions. [2024-12-02 09:01:22,725 INFO L78 Accepts]: Start accepts. Automaton has 73391 states and 105407 transitions. Word has length 159 [2024-12-02 09:01:22,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:22,725 INFO L471 AbstractCegarLoop]: Abstraction has 73391 states and 105407 transitions. [2024-12-02 09:01:22,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 09:01:22,726 INFO L276 IsEmpty]: Start isEmpty. Operand 73391 states and 105407 transitions. [2024-12-02 09:01:22,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 09:01:22,728 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:22,729 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:22,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 09:01:22,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:01:22,929 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:22,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:22,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1915214107, now seen corresponding path program 1 times [2024-12-02 09:01:22,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:22,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731386178] [2024-12-02 09:01:22,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:22,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:26,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:27,239 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 09:01:27,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:27,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731386178] [2024-12-02 09:01:27,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731386178] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:01:27,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411574731] [2024-12-02 09:01:27,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:27,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:01:27,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:01:27,242 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:01:27,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 09:01:33,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:33,387 INFO L256 TraceCheckSpWp]: Trace formula consists of 3069 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 09:01:33,391 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:01:33,981 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 09:01:33,981 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:01:33,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411574731] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:33,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 09:01:33,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-12-02 09:01:33,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249516572] [2024-12-02 09:01:33,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:33,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 09:01:33,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:33,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 09:01:33,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 09:01:33,983 INFO L87 Difference]: Start difference. First operand 73391 states and 105407 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 09:01:36,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:36,414 INFO L93 Difference]: Finished difference Result 165345 states and 237351 transitions. [2024-12-02 09:01:36,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 09:01:36,414 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 160 [2024-12-02 09:01:36,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:36,744 INFO L225 Difference]: With dead ends: 165345 [2024-12-02 09:01:36,744 INFO L226 Difference]: Without dead ends: 91978 [2024-12-02 09:01:36,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-12-02 09:01:36,931 INFO L435 NwaCegarLoop]: 2740 mSDtfsCounter, 2067 mSDsluCounter, 12962 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2071 SdHoareTripleChecker+Valid, 15702 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:36,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2071 Valid, 15702 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 09:01:36,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91978 states. [2024-12-02 09:01:39,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91978 to 73435. [2024-12-02 09:01:39,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73435 states, 48764 states have (on average 1.2753260602083505) internal successors, (62190), 49988 states have internal predecessors, (62190), 21573 states have call successors, (21573), 3030 states have call predecessors, (21573), 3097 states have return successors, (21694), 20808 states have call predecessors, (21694), 21572 states have call successors, (21694) [2024-12-02 09:01:39,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73435 states to 73435 states and 105457 transitions. [2024-12-02 09:01:39,978 INFO L78 Accepts]: Start accepts. Automaton has 73435 states and 105457 transitions. Word has length 160 [2024-12-02 09:01:39,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:39,979 INFO L471 AbstractCegarLoop]: Abstraction has 73435 states and 105457 transitions. [2024-12-02 09:01:39,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 09:01:39,979 INFO L276 IsEmpty]: Start isEmpty. Operand 73435 states and 105457 transitions. [2024-12-02 09:01:39,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-12-02 09:01:39,982 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:39,982 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:40,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 09:01:40,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-02 09:01:40,183 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:40,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:40,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1452368196, now seen corresponding path program 1 times [2024-12-02 09:01:40,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:40,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206677762] [2024-12-02 09:01:40,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:40,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:43,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:44,518 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 09:01:44,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:44,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206677762] [2024-12-02 09:01:44,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206677762] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:01:44,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245276754] [2024-12-02 09:01:44,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:44,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:01:44,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:01:44,520 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:01:44,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 09:01:49,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:49,297 INFO L256 TraceCheckSpWp]: Trace formula consists of 3071 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 09:01:49,300 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:01:49,896 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 09:01:49,897 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:01:49,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245276754] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:49,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 09:01:49,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-12-02 09:01:49,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235434376] [2024-12-02 09:01:49,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:49,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 09:01:49,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:49,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 09:01:49,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 09:01:49,898 INFO L87 Difference]: Start difference. First operand 73435 states and 105457 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 09:01:52,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:52,386 INFO L93 Difference]: Finished difference Result 165405 states and 237417 transitions. [2024-12-02 09:01:52,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 09:01:52,387 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 161 [2024-12-02 09:01:52,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:52,693 INFO L225 Difference]: With dead ends: 165405 [2024-12-02 09:01:52,693 INFO L226 Difference]: Without dead ends: 91994 [2024-12-02 09:01:52,869 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-12-02 09:01:52,869 INFO L435 NwaCegarLoop]: 2655 mSDtfsCounter, 2067 mSDsluCounter, 12622 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2071 SdHoareTripleChecker+Valid, 15277 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:52,869 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2071 Valid, 15277 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 09:01:52,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91994 states. [2024-12-02 09:01:55,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91994 to 73461. [2024-12-02 09:01:55,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73461 states, 48784 states have (on average 1.275213184650705) internal successors, (62210), 50006 states have internal predecessors, (62210), 21573 states have call successors, (21573), 3030 states have call predecessors, (21573), 3103 states have return successors, (21700), 20816 states have call predecessors, (21700), 21572 states have call successors, (21700) [2024-12-02 09:01:55,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73461 states to 73461 states and 105483 transitions. [2024-12-02 09:01:55,842 INFO L78 Accepts]: Start accepts. Automaton has 73461 states and 105483 transitions. Word has length 161 [2024-12-02 09:01:55,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:55,843 INFO L471 AbstractCegarLoop]: Abstraction has 73461 states and 105483 transitions. [2024-12-02 09:01:55,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 09:01:55,843 INFO L276 IsEmpty]: Start isEmpty. Operand 73461 states and 105483 transitions. [2024-12-02 09:01:55,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-12-02 09:01:55,845 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:55,845 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:55,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 09:01:56,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:01:56,046 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:56,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:56,046 INFO L85 PathProgramCache]: Analyzing trace with hash 2003741817, now seen corresponding path program 1 times [2024-12-02 09:01:56,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:56,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651030166] [2024-12-02 09:01:56,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:56,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:00,174 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-12-02 09:02:00,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:02:00,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651030166] [2024-12-02 09:02:00,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651030166] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:02:00,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391753708] [2024-12-02 09:02:00,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:00,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:02:00,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:00,176 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:02:00,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 09:02:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:05,336 INFO L256 TraceCheckSpWp]: Trace formula consists of 3134 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 09:02:05,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:06,438 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-12-02 09:02:06,438 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:02:08,627 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-12-02 09:02:08,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391753708] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:02:08,628 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:02:08,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 18 [2024-12-02 09:02:08,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536625972] [2024-12-02 09:02:08,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:02:08,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 09:02:08,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:02:08,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 09:02:08,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-12-02 09:02:08,630 INFO L87 Difference]: Start difference. First operand 73461 states and 105483 transitions. Second operand has 18 states, 18 states have (on average 7.5) internal successors, (135), 14 states have internal predecessors, (135), 5 states have call successors, (35), 4 states have call predecessors, (35), 7 states have return successors, (30), 6 states have call predecessors, (30), 5 states have call successors, (30) [2024-12-02 09:02:12,665 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 [] [2024-12-02 09:02:16,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:02:21,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:02:25,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:04:28,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:04:28,122 INFO L93 Difference]: Finished difference Result 198137 states and 284785 transitions. [2024-12-02 09:04:28,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-12-02 09:04:28,123 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.5) internal successors, (135), 14 states have internal predecessors, (135), 5 states have call successors, (35), 4 states have call predecessors, (35), 7 states have return successors, (30), 6 states have call predecessors, (30), 5 states have call successors, (30) Word has length 174 [2024-12-02 09:04:28,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:04:28,535 INFO L225 Difference]: With dead ends: 198137 [2024-12-02 09:04:28,535 INFO L226 Difference]: Without dead ends: 124644 [2024-12-02 09:04:28,734 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 340 SyntacticMatches, 8 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1987 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=785, Invalid=5695, Unknown=0, NotChecked=0, Total=6480 [2024-12-02 09:04:28,735 INFO L435 NwaCegarLoop]: 4174 mSDtfsCounter, 13900 mSDsluCounter, 45231 mSDsCounter, 0 mSdLazyCounter, 12272 mSolverCounterSat, 4390 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 119.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13921 SdHoareTripleChecker+Valid, 49405 SdHoareTripleChecker+Invalid, 16666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 4390 IncrementalHoareTripleChecker+Valid, 12272 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 123.7s IncrementalHoareTripleChecker+Time [2024-12-02 09:04:28,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13921 Valid, 49405 Invalid, 16666 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [4390 Valid, 12272 Invalid, 4 Unknown, 0 Unchecked, 123.7s Time] [2024-12-02 09:04:28,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124644 states. [2024-12-02 09:04:35,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124644 to 118565. [2024-12-02 09:04:35,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118565 states, 78710 states have (on average 1.2754414940922374) internal successors, (100390), 80688 states have internal predecessors, (100390), 34832 states have call successors, (34832), 4899 states have call predecessors, (34832), 5022 states have return successors, (35045), 33605 states have call predecessors, (35045), 34831 states have call successors, (35045) [2024-12-02 09:04:35,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118565 states to 118565 states and 170267 transitions. [2024-12-02 09:04:35,807 INFO L78 Accepts]: Start accepts. Automaton has 118565 states and 170267 transitions. Word has length 174 [2024-12-02 09:04:35,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:04:35,808 INFO L471 AbstractCegarLoop]: Abstraction has 118565 states and 170267 transitions. [2024-12-02 09:04:35,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.5) internal successors, (135), 14 states have internal predecessors, (135), 5 states have call successors, (35), 4 states have call predecessors, (35), 7 states have return successors, (30), 6 states have call predecessors, (30), 5 states have call successors, (30) [2024-12-02 09:04:35,808 INFO L276 IsEmpty]: Start isEmpty. Operand 118565 states and 170267 transitions. [2024-12-02 09:04:35,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-12-02 09:04:35,811 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:04:35,811 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:04:35,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-12-02 09:04:36,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-12-02 09:04:36,011 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:04:36,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:04:36,012 INFO L85 PathProgramCache]: Analyzing trace with hash 171571457, now seen corresponding path program 1 times [2024-12-02 09:04:36,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:04:36,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221555612] [2024-12-02 09:04:36,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:36,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:04:39,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:40,568 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-12-02 09:04:40,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:04:40,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221555612] [2024-12-02 09:04:40,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221555612] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:04:40,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948746899] [2024-12-02 09:04:40,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:40,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:04:40,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:04:40,570 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:04:40,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 09:04:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:45,760 INFO L256 TraceCheckSpWp]: Trace formula consists of 3136 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 09:04:45,763 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:04:47,714 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-12-02 09:04:47,714 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:04:51,525 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-12-02 09:04:51,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948746899] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:04:51,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:04:51,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 18 [2024-12-02 09:04:51,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527524114] [2024-12-02 09:04:51,526 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:04:51,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 09:04:51,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:04:51,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 09:04:51,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-12-02 09:04:51,528 INFO L87 Difference]: Start difference. First operand 118565 states and 170267 transitions. Second operand has 18 states, 18 states have (on average 7.611111111111111) internal successors, (137), 14 states have internal predecessors, (137), 5 states have call successors, (35), 4 states have call predecessors, (35), 7 states have return successors, (30), 6 states have call predecessors, (30), 5 states have call successors, (30) [2024-12-02 09:04:55,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:04:59,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:05:04,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:05:08,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:07:01,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:07:01,042 INFO L93 Difference]: Finished difference Result 288397 states and 414405 transitions. [2024-12-02 09:07:01,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-12-02 09:07:01,042 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.611111111111111) internal successors, (137), 14 states have internal predecessors, (137), 5 states have call successors, (35), 4 states have call predecessors, (35), 7 states have return successors, (30), 6 states have call predecessors, (30), 5 states have call successors, (30) Word has length 175 [2024-12-02 09:07:01,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:07:01,546 INFO L225 Difference]: With dead ends: 288397 [2024-12-02 09:07:01,546 INFO L226 Difference]: Without dead ends: 169800 [2024-12-02 09:07:01,799 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 342 SyntacticMatches, 8 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2015 ImplicationChecksByTransitivity, 15.4s TimeCoverageRelationStatistics Valid=785, Invalid=5695, Unknown=0, NotChecked=0, Total=6480 [2024-12-02 09:07:01,800 INFO L435 NwaCegarLoop]: 3517 mSDtfsCounter, 14575 mSDsluCounter, 39110 mSDsCounter, 0 mSdLazyCounter, 9648 mSolverCounterSat, 4666 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 108.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14596 SdHoareTripleChecker+Valid, 42627 SdHoareTripleChecker+Invalid, 14318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4666 IncrementalHoareTripleChecker+Valid, 9648 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 112.4s IncrementalHoareTripleChecker+Time [2024-12-02 09:07:01,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14596 Valid, 42627 Invalid, 14318 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4666 Valid, 9648 Invalid, 4 Unknown, 0 Unchecked, 112.4s Time] [2024-12-02 09:07:01,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169800 states. [2024-12-02 09:07:08,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169800 to 123219. [2024-12-02 09:07:08,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123219 states, 81800 states have (on average 1.2755134474327627) internal successors, (104337), 83860 states have internal predecessors, (104337), 36206 states have call successors, (36206), 5085 states have call predecessors, (36206), 5212 states have return successors, (36425), 34927 states have call predecessors, (36425), 36205 states have call successors, (36425) [2024-12-02 09:07:09,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123219 states to 123219 states and 176968 transitions. [2024-12-02 09:07:09,427 INFO L78 Accepts]: Start accepts. Automaton has 123219 states and 176968 transitions. Word has length 175 [2024-12-02 09:07:09,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:07:09,427 INFO L471 AbstractCegarLoop]: Abstraction has 123219 states and 176968 transitions. [2024-12-02 09:07:09,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.611111111111111) internal successors, (137), 14 states have internal predecessors, (137), 5 states have call successors, (35), 4 states have call predecessors, (35), 7 states have return successors, (30), 6 states have call predecessors, (30), 5 states have call successors, (30) [2024-12-02 09:07:09,428 INFO L276 IsEmpty]: Start isEmpty. Operand 123219 states and 176968 transitions. [2024-12-02 09:07:09,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-12-02 09:07:09,431 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:07:09,431 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:07:09,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-12-02 09:07:09,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-02 09:07:09,632 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:07:09,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:07:09,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1163059904, now seen corresponding path program 1 times [2024-12-02 09:07:09,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:07:09,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711475458] [2024-12-02 09:07:09,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:07:09,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:07:14,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:07:15,169 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-12-02 09:07:15,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:07:15,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711475458] [2024-12-02 09:07:15,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711475458] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:07:15,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092455832] [2024-12-02 09:07:15,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:07:15,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:07:15,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:07:15,172 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:07:15,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 09:07:20,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:07:20,076 INFO L256 TraceCheckSpWp]: Trace formula consists of 3138 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 09:07:20,081 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:07:22,253 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-12-02 09:07:22,253 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:07:26,541 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-12-02 09:07:26,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092455832] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:07:26,541 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:07:26,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 18 [2024-12-02 09:07:26,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254123965] [2024-12-02 09:07:26,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:07:26,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 09:07:26,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:07:26,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 09:07:26,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-12-02 09:07:26,544 INFO L87 Difference]: Start difference. First operand 123219 states and 176968 transitions. Second operand has 18 states, 18 states have (on average 7.722222222222222) internal successors, (139), 14 states have internal predecessors, (139), 5 states have call successors, (35), 4 states have call predecessors, (35), 7 states have return successors, (30), 6 states have call predecessors, (30), 5 states have call successors, (30) [2024-12-02 09:07:30,573 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 [] [2024-12-02 09:07:34,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:07:39,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:07:43,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 09:09:32,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:09:32,762 INFO L93 Difference]: Finished difference Result 279497 states and 401656 transitions. [2024-12-02 09:09:32,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-12-02 09:09:32,763 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.722222222222222) internal successors, (139), 14 states have internal predecessors, (139), 5 states have call successors, (35), 4 states have call predecessors, (35), 7 states have return successors, (30), 6 states have call predecessors, (30), 5 states have call successors, (30) Word has length 176 [2024-12-02 09:09:32,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:09:33,256 INFO L225 Difference]: With dead ends: 279497 [2024-12-02 09:09:33,256 INFO L226 Difference]: Without dead ends: 156246 [2024-12-02 09:09:33,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 344 SyntacticMatches, 8 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2015 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=785, Invalid=5695, Unknown=0, NotChecked=0, Total=6480 [2024-12-02 09:09:33,517 INFO L435 NwaCegarLoop]: 3377 mSDtfsCounter, 14950 mSDsluCounter, 36712 mSDsCounter, 0 mSdLazyCounter, 8686 mSolverCounterSat, 4952 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 105.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14971 SdHoareTripleChecker+Valid, 40089 SdHoareTripleChecker+Invalid, 13642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4952 IncrementalHoareTripleChecker+Valid, 8686 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 108.5s IncrementalHoareTripleChecker+Time [2024-12-02 09:09:33,518 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14971 Valid, 40089 Invalid, 13642 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4952 Valid, 8686 Invalid, 4 Unknown, 0 Unchecked, 108.5s Time] [2024-12-02 09:09:33,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156246 states. [2024-12-02 09:09:37,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156246 to 107313. [2024-12-02 09:09:38,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107313 states, 71237 states have (on average 1.2754607858275897) internal successors, (90860), 73009 states have internal predecessors, (90860), 31551 states have call successors, (31551), 4425 states have call predecessors, (31551), 4524 states have return successors, (31734), 30449 states have call predecessors, (31734), 31550 states have call successors, (31734) [2024-12-02 09:09:38,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107313 states to 107313 states and 154145 transitions. [2024-12-02 09:09:38,490 INFO L78 Accepts]: Start accepts. Automaton has 107313 states and 154145 transitions. Word has length 176 [2024-12-02 09:09:38,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:09:38,490 INFO L471 AbstractCegarLoop]: Abstraction has 107313 states and 154145 transitions. [2024-12-02 09:09:38,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.722222222222222) internal successors, (139), 14 states have internal predecessors, (139), 5 states have call successors, (35), 4 states have call predecessors, (35), 7 states have return successors, (30), 6 states have call predecessors, (30), 5 states have call successors, (30) [2024-12-02 09:09:38,490 INFO L276 IsEmpty]: Start isEmpty. Operand 107313 states and 154145 transitions. [2024-12-02 09:09:38,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2024-12-02 09:09:38,495 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:09:38,495 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:09:38,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-12-02 09:09:38,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:09:38,696 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:09:38,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:09:38,696 INFO L85 PathProgramCache]: Analyzing trace with hash -266327763, now seen corresponding path program 1 times [2024-12-02 09:09:38,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:09:38,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141440527] [2024-12-02 09:09:38,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:09:38,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:09:42,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:09:42,755 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2024-12-02 09:09:42,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:09:42,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141440527] [2024-12-02 09:09:42,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141440527] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:09:42,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:09:42,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 09:09:42,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753454294] [2024-12-02 09:09:42,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:09:42,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 09:09:42,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:09:42,756 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 09:09:42,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 09:09:42,757 INFO L87 Difference]: Start difference. First operand 107313 states and 154145 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2024-12-02 09:09:47,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:09:47,652 INFO L93 Difference]: Finished difference Result 306814 states and 441611 transitions. [2024-12-02 09:09:47,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 09:09:47,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 430 [2024-12-02 09:09:47,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:09:48,281 INFO L225 Difference]: With dead ends: 306814 [2024-12-02 09:09:48,281 INFO L226 Difference]: Without dead ends: 199525 [2024-12-02 09:09:48,526 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 09:09:48,527 INFO L435 NwaCegarLoop]: 2748 mSDtfsCounter, 1821 mSDsluCounter, 2013 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1821 SdHoareTripleChecker+Valid, 4761 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:09:48,527 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1821 Valid, 4761 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 09:09:48,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199525 states. [2024-12-02 09:09:57,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199525 to 199428. [2024-12-02 09:09:57,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199428 states, 131325 states have (on average 1.2770074243289549) internal successors, (167703), 134634 states have internal predecessors, (167703), 59618 states have call successors, (59618), 8285 states have call predecessors, (59618), 8484 states have return successors, (59985), 57556 states have call predecessors, (59985), 59617 states have call successors, (59985) [2024-12-02 09:09:58,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199428 states to 199428 states and 287306 transitions. [2024-12-02 09:09:59,085 INFO L78 Accepts]: Start accepts. Automaton has 199428 states and 287306 transitions. Word has length 430 [2024-12-02 09:09:59,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:09:59,086 INFO L471 AbstractCegarLoop]: Abstraction has 199428 states and 287306 transitions. [2024-12-02 09:09:59,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2024-12-02 09:09:59,086 INFO L276 IsEmpty]: Start isEmpty. Operand 199428 states and 287306 transitions. [2024-12-02 09:09:59,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2024-12-02 09:09:59,100 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:09:59,100 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:09:59,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 09:09:59,100 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:09:59,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:09:59,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1182121797, now seen corresponding path program 1 times [2024-12-02 09:09:59,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:09:59,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645303347] [2024-12-02 09:09:59,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:09:59,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:10:04,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:10:04,993 INFO L134 CoverageAnalysis]: Checked inductivity of 981 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 981 trivial. 0 not checked. [2024-12-02 09:10:04,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:10:04,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645303347] [2024-12-02 09:10:04,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645303347] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:10:04,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:10:04,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:10:04,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452783866] [2024-12-02 09:10:04,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:10:04,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:10:04,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:10:04,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:10:04,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:10:04,996 INFO L87 Difference]: Start difference. First operand 199428 states and 287306 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 3 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2024-12-02 09:10:11,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:10:11,467 INFO L93 Difference]: Finished difference Result 423022 states and 601838 transitions. [2024-12-02 09:10:11,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 09:10:11,468 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 3 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 458 [2024-12-02 09:10:11,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:10:12,537 INFO L225 Difference]: With dead ends: 423022 [2024-12-02 09:10:12,537 INFO L226 Difference]: Without dead ends: 223628 [2024-12-02 09:10:13,099 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 09:10:13,100 INFO L435 NwaCegarLoop]: 2087 mSDtfsCounter, 979 mSDsluCounter, 3234 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 5321 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:10:13,100 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [979 Valid, 5321 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 09:10:13,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223628 states. [2024-12-02 09:10:22,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223628 to 223628. [2024-12-02 09:10:22,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223628 states, 147405 states have (on average 1.2566127336250466) internal successors, (185231), 150714 states have internal predecessors, (185231), 63688 states have call successors, (63688), 12335 states have call predecessors, (63688), 12534 states have return successors, (64055), 61626 states have call predecessors, (64055), 63687 states have call successors, (64055) [2024-12-02 09:10:22,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223628 states to 223628 states and 312974 transitions. [2024-12-02 09:10:23,155 INFO L78 Accepts]: Start accepts. Automaton has 223628 states and 312974 transitions. Word has length 458 [2024-12-02 09:10:23,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:10:23,156 INFO L471 AbstractCegarLoop]: Abstraction has 223628 states and 312974 transitions. [2024-12-02 09:10:23,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 3 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2024-12-02 09:10:23,156 INFO L276 IsEmpty]: Start isEmpty. Operand 223628 states and 312974 transitions. [2024-12-02 09:10:23,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2024-12-02 09:10:23,202 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:10:23,203 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 15, 15, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:10:23,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 09:10:23,203 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:10:23,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:10:23,204 INFO L85 PathProgramCache]: Analyzing trace with hash -264303005, now seen corresponding path program 1 times [2024-12-02 09:10:23,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:10:23,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185502537] [2024-12-02 09:10:23,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:10:23,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:10:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:10:30,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1422 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 1409 trivial. 0 not checked. [2024-12-02 09:10:30,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:10:30,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185502537] [2024-12-02 09:10:30,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185502537] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:10:30,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737352675] [2024-12-02 09:10:30,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:10:30,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:10:30,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:10:30,297 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:10:30,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 09:10:36,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:10:36,250 INFO L256 TraceCheckSpWp]: Trace formula consists of 5861 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 09:10:36,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:10:36,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1422 backedges. 446 proven. 0 refuted. 0 times theorem prover too weak. 976 trivial. 0 not checked. [2024-12-02 09:10:36,903 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:10:36,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [737352675] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:10:36,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 09:10:36,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-12-02 09:10:36,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883175495] [2024-12-02 09:10:36,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:10:36,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 09:10:36,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:10:36,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 09:10:36,905 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 09:10:36,905 INFO L87 Difference]: Start difference. First operand 223628 states and 312974 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 3 states have call successors, (68), 3 states have call predecessors, (68), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2024-12-02 09:10:46,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:10:46,270 INFO L93 Difference]: Finished difference Result 551054 states and 772273 transitions. [2024-12-02 09:10:46,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 09:10:46,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 3 states have call successors, (68), 3 states have call predecessors, (68), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) Word has length 626 [2024-12-02 09:10:46,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:10:47,789 INFO L225 Difference]: With dead ends: 551054 [2024-12-02 09:10:47,789 INFO L226 Difference]: Without dead ends: 327460 [2024-12-02 09:10:48,668 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 631 GetRequests, 628 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 09:10:48,669 INFO L435 NwaCegarLoop]: 2095 mSDtfsCounter, 1627 mSDsluCounter, 1945 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1627 SdHoareTripleChecker+Valid, 4040 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 09:10:48,669 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1627 Valid, 4040 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 09:10:48,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327460 states. [2024-12-02 09:11:00,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327460 to 326282. [2024-12-02 09:11:00,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326282 states, 215466 states have (on average 1.260658294116009) internal successors, (271629), 220406 states have internal predecessors, (271629), 92474 states have call successors, (92474), 18042 states have call predecessors, (92474), 18341 states have return successors, (93025), 89311 states have call predecessors, (93025), 92473 states have call successors, (93025) [2024-12-02 09:11:02,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326282 states to 326282 states and 457128 transitions. [2024-12-02 09:11:02,696 INFO L78 Accepts]: Start accepts. Automaton has 326282 states and 457128 transitions. Word has length 626 [2024-12-02 09:11:02,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:11:02,697 INFO L471 AbstractCegarLoop]: Abstraction has 326282 states and 457128 transitions. [2024-12-02 09:11:02,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 3 states have call successors, (68), 3 states have call predecessors, (68), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2024-12-02 09:11:02,697 INFO L276 IsEmpty]: Start isEmpty. Operand 326282 states and 457128 transitions. [2024-12-02 09:11:02,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 640 [2024-12-02 09:11:02,757 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:11:02,757 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 15, 15, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:11:02,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 09:11:02,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aebb560-6e5c-424d-baa8-3e81bc939eaf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:11:02,958 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:11:02,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:11:02,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1859369631, now seen corresponding path program 1 times [2024-12-02 09:11:02,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:11:02,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168622092] [2024-12-02 09:11:02,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:11:02,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:11:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:11:08,941 INFO L134 CoverageAnalysis]: Checked inductivity of 1435 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1425 trivial. 0 not checked. [2024-12-02 09:11:08,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:11:08,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168622092] [2024-12-02 09:11:08,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168622092] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:11:08,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:11:08,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 09:11:08,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196138808] [2024-12-02 09:11:08,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:11:08,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 09:11:08,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:11:08,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 09:11:08,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 09:11:08,944 INFO L87 Difference]: Start difference. First operand 326282 states and 457128 transitions. Second operand has 5 states, 5 states have (on average 44.8) internal successors, (224), 5 states have internal predecessors, (224), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2024-12-02 09:11:18,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:11:18,362 INFO L93 Difference]: Finished difference Result 652650 states and 914376 transitions. [2024-12-02 09:11:18,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 09:11:18,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.8) internal successors, (224), 5 states have internal predecessors, (224), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 639 [2024-12-02 09:11:18,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:11:19,840 INFO L225 Difference]: With dead ends: 652650 [2024-12-02 09:11:19,840 INFO L226 Difference]: Without dead ends: 326402 [2024-12-02 09:11:20,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 09:11:20,655 INFO L435 NwaCegarLoop]: 2055 mSDtfsCounter, 7 mSDsluCounter, 6142 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 8197 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 09:11:20,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 8197 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 09:11:20,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326402 states. [2024-12-02 09:11:33,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326402 to 326402. [2024-12-02 09:11:34,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326402 states, 215586 states have (on average 1.2605132058668003) internal successors, (271749), 220526 states have internal predecessors, (271749), 92474 states have call successors, (92474), 18042 states have call predecessors, (92474), 18341 states have return successors, (93025), 89311 states have call predecessors, (93025), 92473 states have call successors, (93025) [2024-12-02 09:11:35,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326402 states to 326402 states and 457248 transitions. [2024-12-02 09:11:35,903 INFO L78 Accepts]: Start accepts. Automaton has 326402 states and 457248 transitions. Word has length 639 [2024-12-02 09:11:35,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:11:35,903 INFO L471 AbstractCegarLoop]: Abstraction has 326402 states and 457248 transitions. [2024-12-02 09:11:35,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.8) internal successors, (224), 5 states have internal predecessors, (224), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2024-12-02 09:11:35,904 INFO L276 IsEmpty]: Start isEmpty. Operand 326402 states and 457248 transitions. [2024-12-02 09:11:35,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 661 [2024-12-02 09:11:35,963 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:11:35,964 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 15, 15, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:11:35,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 09:11:35,964 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:11:35,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:11:35,964 INFO L85 PathProgramCache]: Analyzing trace with hash 857849180, now seen corresponding path program 1 times [2024-12-02 09:11:35,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:11:35,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012276980] [2024-12-02 09:11:35,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:11:35,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:11:40,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:11:40,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1450 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1440 trivial. 0 not checked. [2024-12-02 09:11:40,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:11:40,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012276980] [2024-12-02 09:11:40,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012276980] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:11:40,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:11:40,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 09:11:40,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426085927] [2024-12-02 09:11:40,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:11:40,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 09:11:40,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:11:40,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 09:11:40,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 09:11:40,533 INFO L87 Difference]: Start difference. First operand 326402 states and 457248 transitions. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 2 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2024-12-02 09:11:51,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:11:51,826 INFO L93 Difference]: Finished difference Result 661512 states and 927804 transitions. [2024-12-02 09:11:51,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 09:11:51,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 2 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) Word has length 660 [2024-12-02 09:11:51,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:11:53,641 INFO L225 Difference]: With dead ends: 661512 [2024-12-02 09:11:53,642 INFO L226 Difference]: Without dead ends: 335144 [2024-12-02 09:11:54,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 09:11:54,354 INFO L435 NwaCegarLoop]: 2043 mSDtfsCounter, 19 mSDsluCounter, 2032 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 4075 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 09:11:54,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 4075 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 09:11:54,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335144 states.