./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--hwmon--w83793.ko-ldv_main0.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f251d5-921f-4ab7-a014-2a442529cc94/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f251d5-921f-4ab7-a014-2a442529cc94/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f251d5-921f-4ab7-a014-2a442529cc94/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f251d5-921f-4ab7-a014-2a442529cc94/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--hwmon--w83793.ko-ldv_main0.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f251d5-921f-4ab7-a014-2a442529cc94/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f251d5-921f-4ab7-a014-2a442529cc94/bin/uautomizer-verify-uCwYo4JHxu --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 178bcd25ed1eb86cc15df15af8dd3c1e4148e54d6c8cf5e12496bd14ffef1855 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:37:29,430 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:37:29,520 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f251d5-921f-4ab7-a014-2a442529cc94/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 07:37:29,526 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:37:29,527 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:37:29,561 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:37:29,562 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:37:29,563 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:37:29,564 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:37:29,565 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:37:29,566 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:37:29,567 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:37:29,568 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:37:29,569 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:37:29,569 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:37:29,570 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:37:29,571 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:37:29,572 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:37:29,573 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:37:29,573 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:37:29,574 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:37:29,575 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:37:29,576 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:37:29,577 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:37:29,577 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:37:29,578 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:37:29,579 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:37:29,579 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:37:29,580 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:37:29,581 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:37:29,582 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:37:29,582 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:37:29,583 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:37:29,583 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:37:29,584 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:37:29,584 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:37:29,585 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f251d5-921f-4ab7-a014-2a442529cc94/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f251d5-921f-4ab7-a014-2a442529cc94/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 178bcd25ed1eb86cc15df15af8dd3c1e4148e54d6c8cf5e12496bd14ffef1855 [2023-11-19 07:37:29,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:37:29,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:37:29,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:37:29,964 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:37:29,965 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:37:29,967 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f251d5-921f-4ab7-a014-2a442529cc94/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--hwmon--w83793.ko-ldv_main0.cil.out.i [2023-11-19 07:37:33,220 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:37:33,908 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:37:33,909 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f251d5-921f-4ab7-a014-2a442529cc94/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--hwmon--w83793.ko-ldv_main0.cil.out.i [2023-11-19 07:37:33,966 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f251d5-921f-4ab7-a014-2a442529cc94/bin/uautomizer-verify-uCwYo4JHxu/data/071aa15f8/18b417d2b8d543d199e676c66ba1082b/FLAG60747fc62 [2023-11-19 07:37:33,983 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f251d5-921f-4ab7-a014-2a442529cc94/bin/uautomizer-verify-uCwYo4JHxu/data/071aa15f8/18b417d2b8d543d199e676c66ba1082b [2023-11-19 07:37:33,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:37:33,991 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:37:33,998 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:33,999 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:37:34,004 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:37:34,007 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:33" (1/1) ... [2023-11-19 07:37:34,008 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69d67c6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:34, skipping insertion in model container [2023-11-19 07:37:34,009 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:33" (1/1) ... [2023-11-19 07:37:34,149 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:37:36,184 WARN L240 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_c1f251d5-921f-4ab7-a014-2a442529cc94/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--hwmon--w83793.ko-ldv_main0.cil.out.i[254705,254718] [2023-11-19 07:37:36,317 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:36,551 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:37:36,645 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)); [2870] [2023-11-19 07:37:36,647 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 %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [2878-2879] [2023-11-19 07:37:36,654 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; subl %2,%0; sete %1": "+m" (v->counter), "=qm" (c): "ir" (i): "memory"); [2950-2951] [2023-11-19 07:37:36,655 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; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [2962-2963] [2023-11-19 07:37:36,656 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; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [2966-2967] [2023-11-19 07:37:36,656 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; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [2970-2971] [2023-11-19 07:37:36,656 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; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [2974-2975] [2023-11-19 07:37:36,946 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" (buf + i), "i" (1UL)); [5470-5471] [2023-11-19 07:37:36,951 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [5568] [2023-11-19 07:37:36,951 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [5571] [2023-11-19 07:37:36,952 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [5574] [2023-11-19 07:37:36,952 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [5577] [2023-11-19 07:37:36,953 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [5580] [2023-11-19 07:37:36,953 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((int *)arg): "ebx"); [5591-5592] [2023-11-19 07:37:36,954 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((int *)arg): "ebx"); [5595-5596] [2023-11-19 07:37:36,955 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((int *)arg): "ebx"); [5599-5600] [2023-11-19 07:37:36,955 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((int *)arg): "ebx"); [5603-5604] [2023-11-19 07:37:36,956 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((int *)arg): "ebx"); [5607-5608] [2023-11-19 07:37:36,957 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((int *)arg): "ebx"); [5623-5624] [2023-11-19 07:37:36,957 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((int *)arg): "ebx"); [5627-5628] [2023-11-19 07:37:36,958 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((int *)arg): "ebx"); [5631-5632] [2023-11-19 07:37:36,958 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((int *)arg): "ebx"); [5635-5636] [2023-11-19 07:37:36,959 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((int *)arg): "ebx"); [5639-5640] [2023-11-19 07:37:36,959 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" ((int *)arg), "i" (4UL)); [5648-5649] [2023-11-19 07:37:36,960 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" ((int *)arg): "ebx"); [5662-5663] [2023-11-19 07:37:36,961 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" ((int *)arg): "ebx"); [5666-5667] [2023-11-19 07:37:36,961 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" ((int *)arg): "ebx"); [5670-5671] [2023-11-19 07:37:36,961 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" ((int *)arg): "ebx"); [5674-5675] [2023-11-19 07:37:36,962 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" ((int *)arg): "ebx"); [5678-5679] [2023-11-19 07:37:36,962 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___0), "=r" (__val_gu___0): "0" ((int *)arg), "i" (4UL)); [5689-5690] [2023-11-19 07:37:37,033 WARN L240 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_c1f251d5-921f-4ab7-a014-2a442529cc94/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--hwmon--w83793.ko-ldv_main0.cil.out.i[254705,254718] [2023-11-19 07:37:37,057 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:37,587 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:37:37,587 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:37:37,596 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:37:37,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:37 WrapperNode [2023-11-19 07:37:37,597 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:37,598 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:37,599 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:37:37,599 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:37:37,607 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:37" (1/1) ... [2023-11-19 07:37:37,717 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:37" (1/1) ... [2023-11-19 07:37:38,031 INFO L138 Inliner]: procedures = 243, calls = 6571, calls flagged for inlining = 120, calls inlined = 82, statements flattened = 8055 [2023-11-19 07:37:38,032 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:38,034 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:37:38,034 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:37:38,034 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:37:38,045 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:37" (1/1) ... [2023-11-19 07:37:38,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:37" (1/1) ... [2023-11-19 07:37:38,101 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:37" (1/1) ... [2023-11-19 07:37:38,101 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:37" (1/1) ... [2023-11-19 07:37:38,361 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:37" (1/1) ... [2023-11-19 07:37:38,448 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:37" (1/1) ... [2023-11-19 07:37:38,485 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:37" (1/1) ... [2023-11-19 07:37:38,518 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:37" (1/1) ... [2023-11-19 07:37:38,567 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:37:38,568 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:37:38,569 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:37:38,569 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:37:38,570 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:37" (1/1) ... [2023-11-19 07:37:38,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:37:38,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f251d5-921f-4ab7-a014-2a442529cc94/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:38,605 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f251d5-921f-4ab7-a014-2a442529cc94/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:38,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f251d5-921f-4ab7-a014-2a442529cc94/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:37:38,653 INFO L130 BoogieDeclarations]: Found specification of procedure watchdog_enable [2023-11-19 07:37:38,654 INFO L138 BoogieDeclarations]: Found implementation of procedure watchdog_enable [2023-11-19 07:37:38,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 07:37:38,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 07:37:38,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_watchdog_lock_of_w83793_data [2023-11-19 07:37:38,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_watchdog_lock_of_w83793_data [2023-11-19 07:37:38,655 INFO L130 BoogieDeclarations]: Found specification of procedure w83793_write_value [2023-11-19 07:37:38,655 INFO L138 BoogieDeclarations]: Found implementation of procedure w83793_write_value [2023-11-19 07:37:38,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_watchdog_data_mutex [2023-11-19 07:37:38,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_watchdog_data_mutex [2023-11-19 07:37:38,656 INFO L130 BoogieDeclarations]: Found specification of procedure w83793_read_value [2023-11-19 07:37:38,657 INFO L138 BoogieDeclarations]: Found implementation of procedure w83793_read_value [2023-11-19 07:37:38,657 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2023-11-19 07:37:38,657 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2023-11-19 07:37:38,657 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 07:37:38,657 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 07:37:38,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 07:37:38,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 07:37:38,658 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2023-11-19 07:37:38,658 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2023-11-19 07:37:38,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-11-19 07:37:38,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-11-19 07:37:38,658 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-19 07:37:38,658 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-19 07:37:38,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:37:38,658 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte_data [2023-11-19 07:37:38,659 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte_data [2023-11-19 07:37:38,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:37:38,659 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-19 07:37:38,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:37:38,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:37:38,659 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-19 07:37:38,659 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-19 07:37:38,659 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_unregister_device [2023-11-19 07:37:38,660 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_unregister_device [2023-11-19 07:37:38,660 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 07:37:38,660 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 07:37:38,660 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-19 07:37:38,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-19 07:37:38,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-19 07:37:38,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-19 07:37:38,662 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-19 07:37:38,662 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-19 07:37:38,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:37:38,662 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2023-11-19 07:37:38,662 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2023-11-19 07:37:38,663 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 07:37:38,663 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 07:37:38,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_watchdog_lock_of_w83793_data [2023-11-19 07:37:38,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_watchdog_lock_of_w83793_data [2023-11-19 07:37:38,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:37:38,664 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-19 07:37:38,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-19 07:37:38,664 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-11-19 07:37:38,664 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-11-19 07:37:38,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 07:37:38,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 07:37:38,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:37:38,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:37:38,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:37:38,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_watchdog_data_mutex [2023-11-19 07:37:38,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_watchdog_data_mutex [2023-11-19 07:37:38,666 INFO L130 BoogieDeclarations]: Found specification of procedure watchdog_disable [2023-11-19 07:37:38,666 INFO L138 BoogieDeclarations]: Found implementation of procedure watchdog_disable [2023-11-19 07:37:38,666 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 07:37:38,666 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 07:37:38,667 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_unregister [2023-11-19 07:37:38,667 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_unregister [2023-11-19 07:37:38,667 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_new_dummy [2023-11-19 07:37:38,667 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_new_dummy [2023-11-19 07:37:38,667 INFO L130 BoogieDeclarations]: Found specification of procedure watchdog_trigger [2023-11-19 07:37:38,667 INFO L138 BoogieDeclarations]: Found implementation of procedure watchdog_trigger [2023-11-19 07:37:38,667 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-19 07:37:38,667 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-19 07:37:38,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:37:38,668 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte_data [2023-11-19 07:37:38,668 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte_data [2023-11-19 07:37:38,668 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2023-11-19 07:37:38,668 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2023-11-19 07:37:38,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:37:38,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:37:39,141 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:37:39,145 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:37:56,069 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:37:56,088 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:37:56,088 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:37:56,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:56 BoogieIcfgContainer [2023-11-19 07:37:56,099 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:37:56,101 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:37:56,102 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:37:56,105 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:37:56,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:37:33" (1/3) ... [2023-11-19 07:37:56,107 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ad690d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:37:56, skipping insertion in model container [2023-11-19 07:37:56,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:37" (2/3) ... [2023-11-19 07:37:56,107 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ad690d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:37:56, skipping insertion in model container [2023-11-19 07:37:56,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:56" (3/3) ... [2023-11-19 07:37:56,109 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--hwmon--w83793.ko-ldv_main0.cil.out.i [2023-11-19 07:37:56,130 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:37:56,130 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:37:56,207 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:37:56,214 INFO L357 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, mHoare=true, 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;@1c717d27, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:37:56,228 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:37:56,243 INFO L276 IsEmpty]: Start isEmpty. Operand has 904 states, 688 states have (on average 1.4622093023255813) internal successors, (1006), 702 states have internal predecessors, (1006), 180 states have call successors, (180), 34 states have call predecessors, (180), 34 states have return successors, (180), 180 states have call predecessors, (180), 180 states have call successors, (180) [2023-11-19 07:37:56,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 07:37:56,265 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:56,266 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:56,267 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:56,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:56,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1765724304, now seen corresponding path program 1 times [2023-11-19 07:37:56,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:56,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575683365] [2023-11-19 07:37:56,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:56,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:58,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:58,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:58,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575683365] [2023-11-19 07:37:58,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575683365] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:58,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:58,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:37:58,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414923161] [2023-11-19 07:37:58,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:58,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:37:58,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:58,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:37:58,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:37:58,515 INFO L87 Difference]: Start difference. First operand has 904 states, 688 states have (on average 1.4622093023255813) internal successors, (1006), 702 states have internal predecessors, (1006), 180 states have call successors, (180), 34 states have call predecessors, (180), 34 states have return successors, (180), 180 states have call predecessors, (180), 180 states have call successors, (180) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:59,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:59,138 INFO L93 Difference]: Finished difference Result 1802 states and 2790 transitions. [2023-11-19 07:37:59,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:37:59,141 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-19 07:37:59,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:59,168 INFO L225 Difference]: With dead ends: 1802 [2023-11-19 07:37:59,174 INFO L226 Difference]: Without dead ends: 897 [2023-11-19 07:37:59,187 INFO L412 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 [2023-11-19 07:37:59,192 INFO L413 NwaCegarLoop]: 1322 mSDtfsCounter, 1317 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1317 SdHoareTripleChecker+Valid, 1322 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:59,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1317 Valid, 1322 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:37:59,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2023-11-19 07:37:59,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 897. [2023-11-19 07:37:59,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 684 states have (on average 1.4181286549707601) internal successors, (970), 695 states have internal predecessors, (970), 179 states have call successors, (179), 34 states have call predecessors, (179), 33 states have return successors, (170), 170 states have call predecessors, (170), 170 states have call successors, (170) [2023-11-19 07:37:59,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1319 transitions. [2023-11-19 07:37:59,357 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1319 transitions. Word has length 9 [2023-11-19 07:37:59,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:59,358 INFO L495 AbstractCegarLoop]: Abstraction has 897 states and 1319 transitions. [2023-11-19 07:37:59,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:59,359 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1319 transitions. [2023-11-19 07:37:59,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 07:37:59,360 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:59,360 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:59,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:37:59,360 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:59,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:59,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1096740117, now seen corresponding path program 1 times [2023-11-19 07:37:59,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:59,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463478856] [2023-11-19 07:37:59,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:59,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:00,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:00,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:00,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463478856] [2023-11-19 07:38:00,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463478856] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:00,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:00,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:38:00,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447108739] [2023-11-19 07:38:00,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:00,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:38:00,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:00,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:38:00,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:38:00,736 INFO L87 Difference]: Start difference. First operand 897 states and 1319 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:01,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:38:01,201 INFO L93 Difference]: Finished difference Result 899 states and 1320 transitions. [2023-11-19 07:38:01,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:38:01,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-19 07:38:01,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:38:01,216 INFO L225 Difference]: With dead ends: 899 [2023-11-19 07:38:01,216 INFO L226 Difference]: Without dead ends: 896 [2023-11-19 07:38:01,218 INFO L412 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 [2023-11-19 07:38:01,220 INFO L413 NwaCegarLoop]: 1316 mSDtfsCounter, 1310 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1310 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:38:01,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1310 Valid, 1316 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:38:01,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2023-11-19 07:38:01,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 896. [2023-11-19 07:38:01,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 684 states have (on average 1.4166666666666667) internal successors, (969), 694 states have internal predecessors, (969), 178 states have call successors, (178), 34 states have call predecessors, (178), 33 states have return successors, (170), 170 states have call predecessors, (170), 170 states have call successors, (170) [2023-11-19 07:38:01,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1317 transitions. [2023-11-19 07:38:01,295 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1317 transitions. Word has length 10 [2023-11-19 07:38:01,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:38:01,296 INFO L495 AbstractCegarLoop]: Abstraction has 896 states and 1317 transitions. [2023-11-19 07:38:01,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:01,296 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1317 transitions. [2023-11-19 07:38:01,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 07:38:01,297 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:38:01,298 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:01,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:38:01,298 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:38:01,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:01,299 INFO L85 PathProgramCache]: Analyzing trace with hash -361171181, now seen corresponding path program 1 times [2023-11-19 07:38:01,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:01,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575088472] [2023-11-19 07:38:01,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:01,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:01,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:02,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:02,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:02,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575088472] [2023-11-19 07:38:02,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575088472] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:02,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:02,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:38:02,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671243103] [2023-11-19 07:38:02,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:02,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:38:02,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:02,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:38:02,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:38:02,587 INFO L87 Difference]: Start difference. First operand 896 states and 1317 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:03,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:38:03,023 INFO L93 Difference]: Finished difference Result 898 states and 1318 transitions. [2023-11-19 07:38:03,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:38:03,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-19 07:38:03,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:38:03,033 INFO L225 Difference]: With dead ends: 898 [2023-11-19 07:38:03,034 INFO L226 Difference]: Without dead ends: 895 [2023-11-19 07:38:03,038 INFO L412 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 [2023-11-19 07:38:03,042 INFO L413 NwaCegarLoop]: 1314 mSDtfsCounter, 1307 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 1314 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:38:03,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 1314 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:38:03,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2023-11-19 07:38:03,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 895. [2023-11-19 07:38:03,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 895 states, 684 states have (on average 1.4152046783625731) internal successors, (968), 693 states have internal predecessors, (968), 177 states have call successors, (177), 34 states have call predecessors, (177), 33 states have return successors, (170), 170 states have call predecessors, (170), 170 states have call successors, (170) [2023-11-19 07:38:03,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1315 transitions. [2023-11-19 07:38:03,119 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1315 transitions. Word has length 11 [2023-11-19 07:38:03,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:38:03,120 INFO L495 AbstractCegarLoop]: Abstraction has 895 states and 1315 transitions. [2023-11-19 07:38:03,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:03,120 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1315 transitions. [2023-11-19 07:38:03,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 07:38:03,121 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:38:03,122 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:03,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:38:03,122 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:38:03,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:03,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1688223704, now seen corresponding path program 1 times [2023-11-19 07:38:03,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:03,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181656683] [2023-11-19 07:38:03,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:03,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:03,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:04,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:04,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:04,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181656683] [2023-11-19 07:38:04,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181656683] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:04,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:04,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:38:04,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589728577] [2023-11-19 07:38:04,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:04,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:38:04,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:04,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:38:04,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:38:04,270 INFO L87 Difference]: Start difference. First operand 895 states and 1315 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:04,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:38:04,807 INFO L93 Difference]: Finished difference Result 2583 states and 3803 transitions. [2023-11-19 07:38:04,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:38:04,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-19 07:38:04,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:38:04,822 INFO L225 Difference]: With dead ends: 2583 [2023-11-19 07:38:04,822 INFO L226 Difference]: Without dead ends: 1691 [2023-11-19 07:38:04,826 INFO L412 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 [2023-11-19 07:38:04,833 INFO L413 NwaCegarLoop]: 1319 mSDtfsCounter, 1211 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1211 SdHoareTripleChecker+Valid, 2569 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:38:04,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1211 Valid, 2569 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:38:04,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2023-11-19 07:38:04,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 1686. [2023-11-19 07:38:04,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1686 states, 1306 states have (on average 1.4226646248085757) internal successors, (1858), 1321 states have internal predecessors, (1858), 316 states have call successors, (316), 66 states have call predecessors, (316), 63 states have return successors, (308), 303 states have call predecessors, (308), 308 states have call successors, (308) [2023-11-19 07:38:04,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1686 states to 1686 states and 2482 transitions. [2023-11-19 07:38:04,988 INFO L78 Accepts]: Start accepts. Automaton has 1686 states and 2482 transitions. Word has length 12 [2023-11-19 07:38:04,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:38:04,988 INFO L495 AbstractCegarLoop]: Abstraction has 1686 states and 2482 transitions. [2023-11-19 07:38:04,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:04,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1686 states and 2482 transitions. [2023-11-19 07:38:04,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 07:38:04,989 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:38:04,989 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:04,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:38:04,990 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:38:04,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:04,990 INFO L85 PathProgramCache]: Analyzing trace with hash 794960566, now seen corresponding path program 1 times [2023-11-19 07:38:04,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:04,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870589200] [2023-11-19 07:38:04,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:04,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:05,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:05,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:05,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870589200] [2023-11-19 07:38:05,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870589200] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:05,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:05,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:38:05,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338678586] [2023-11-19 07:38:05,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:05,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:38:05,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:05,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:38:05,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:38:05,951 INFO L87 Difference]: Start difference. First operand 1686 states and 2482 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:06,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:38:06,318 INFO L93 Difference]: Finished difference Result 1773 states and 2576 transitions. [2023-11-19 07:38:06,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:38:06,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-19 07:38:06,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:38:06,333 INFO L225 Difference]: With dead ends: 1773 [2023-11-19 07:38:06,333 INFO L226 Difference]: Without dead ends: 1763 [2023-11-19 07:38:06,334 INFO L412 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 [2023-11-19 07:38:06,335 INFO L413 NwaCegarLoop]: 1344 mSDtfsCounter, 1237 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1237 SdHoareTripleChecker+Valid, 1452 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:38:06,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1237 Valid, 1452 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:38:06,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1763 states. [2023-11-19 07:38:06,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1763 to 1761. [2023-11-19 07:38:06,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1761 states, 1358 states have (on average 1.4079528718703977) internal successors, (1912), 1371 states have internal predecessors, (1912), 326 states have call successors, (326), 79 states have call predecessors, (326), 76 states have return successors, (320), 315 states have call predecessors, (320), 320 states have call successors, (320) [2023-11-19 07:38:06,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1761 states to 1761 states and 2558 transitions. [2023-11-19 07:38:06,454 INFO L78 Accepts]: Start accepts. Automaton has 1761 states and 2558 transitions. Word has length 13 [2023-11-19 07:38:06,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:38:06,455 INFO L495 AbstractCegarLoop]: Abstraction has 1761 states and 2558 transitions. [2023-11-19 07:38:06,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:38:06,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1761 states and 2558 transitions. [2023-11-19 07:38:06,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-19 07:38:06,460 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:38:06,460 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:06,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:38:06,461 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:38:06,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:06,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1168627903, now seen corresponding path program 1 times [2023-11-19 07:38:06,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:06,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960117769] [2023-11-19 07:38:06,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:06,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:06,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:08,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:38:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:08,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:38:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:08,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:38:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:08,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:08,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:08,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960117769] [2023-11-19 07:38:08,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960117769] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:08,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:08,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:38:08,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798337798] [2023-11-19 07:38:08,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:08,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:38:08,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:08,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:38:08,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:38:08,256 INFO L87 Difference]: Start difference. First operand 1761 states and 2558 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:38:10,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:38:10,930 INFO L93 Difference]: Finished difference Result 3522 states and 5115 transitions. [2023-11-19 07:38:10,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:38:10,931 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2023-11-19 07:38:10,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:38:10,945 INFO L225 Difference]: With dead ends: 3522 [2023-11-19 07:38:10,945 INFO L226 Difference]: Without dead ends: 1764 [2023-11-19 07:38:10,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:38:10,954 INFO L413 NwaCegarLoop]: 1967 mSDtfsCounter, 1235 mSDsluCounter, 2489 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1377 SdHoareTripleChecker+Valid, 4456 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:38:10,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1377 Valid, 4456 Invalid, 1248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-19 07:38:10,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2023-11-19 07:38:11,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1761. [2023-11-19 07:38:11,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1761 states, 1358 states have (on average 1.405743740795287) internal successors, (1909), 1371 states have internal predecessors, (1909), 326 states have call successors, (326), 79 states have call predecessors, (326), 76 states have return successors, (315), 315 states have call predecessors, (315), 315 states have call successors, (315) [2023-11-19 07:38:11,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1761 states to 1761 states and 2550 transitions. [2023-11-19 07:38:11,074 INFO L78 Accepts]: Start accepts. Automaton has 1761 states and 2550 transitions. Word has length 36 [2023-11-19 07:38:11,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:38:11,075 INFO L495 AbstractCegarLoop]: Abstraction has 1761 states and 2550 transitions. [2023-11-19 07:38:11,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:38:11,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1761 states and 2550 transitions. [2023-11-19 07:38:11,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-19 07:38:11,118 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:38:11,118 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:11,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:38:11,118 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:38:11,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:11,119 INFO L85 PathProgramCache]: Analyzing trace with hash 919993647, now seen corresponding path program 1 times [2023-11-19 07:38:11,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:11,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893892797] [2023-11-19 07:38:11,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:11,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:11,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:12,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-19 07:38:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:12,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:38:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:12,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:38:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:12,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:12,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:12,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893892797] [2023-11-19 07:38:12,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893892797] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:12,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:12,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:38:12,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378295587] [2023-11-19 07:38:12,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:12,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:38:12,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:12,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:38:12,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:38:12,413 INFO L87 Difference]: Start difference. First operand 1761 states and 2550 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:38:14,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:38:14,147 INFO L93 Difference]: Finished difference Result 4130 states and 6062 transitions. [2023-11-19 07:38:14,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:38:14,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2023-11-19 07:38:14,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:38:14,166 INFO L225 Difference]: With dead ends: 4130 [2023-11-19 07:38:14,166 INFO L226 Difference]: Without dead ends: 2372 [2023-11-19 07:38:14,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:38:14,173 INFO L413 NwaCegarLoop]: 1168 mSDtfsCounter, 905 mSDsluCounter, 1832 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 3000 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:38:14,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1047 Valid, 3000 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-19 07:38:14,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2372 states. [2023-11-19 07:38:14,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2372 to 2366. [2023-11-19 07:38:14,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2366 states, 1847 states have (on average 1.425554953979426) internal successors, (2633), 1861 states have internal predecessors, (2633), 442 states have call successors, (442), 79 states have call predecessors, (442), 76 states have return successors, (431), 431 states have call predecessors, (431), 431 states have call successors, (431) [2023-11-19 07:38:14,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2366 states to 2366 states and 3506 transitions. [2023-11-19 07:38:14,381 INFO L78 Accepts]: Start accepts. Automaton has 2366 states and 3506 transitions. Word has length 38 [2023-11-19 07:38:14,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:38:14,382 INFO L495 AbstractCegarLoop]: Abstraction has 2366 states and 3506 transitions. [2023-11-19 07:38:14,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:38:14,382 INFO L276 IsEmpty]: Start isEmpty. Operand 2366 states and 3506 transitions. [2023-11-19 07:38:14,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-19 07:38:14,387 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:38:14,388 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:14,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:38:14,388 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:38:14,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:14,389 INFO L85 PathProgramCache]: Analyzing trace with hash -327511781, now seen corresponding path program 1 times [2023-11-19 07:38:14,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:14,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783429260] [2023-11-19 07:38:14,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:14,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:15,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 07:38:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:15,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:38:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:15,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:38:15,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:15,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783429260] [2023-11-19 07:38:15,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783429260] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:15,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:15,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:38:15,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333695497] [2023-11-19 07:38:15,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:15,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:38:15,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:15,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:38:15,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:38:15,919 INFO L87 Difference]: Start difference. First operand 2366 states and 3506 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:38:16,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:38:16,496 INFO L93 Difference]: Finished difference Result 3624 states and 5489 transitions. [2023-11-19 07:38:16,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:38:16,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 36 [2023-11-19 07:38:16,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:38:16,523 INFO L225 Difference]: With dead ends: 3624 [2023-11-19 07:38:16,523 INFO L226 Difference]: Without dead ends: 3583 [2023-11-19 07:38:16,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:38:16,526 INFO L413 NwaCegarLoop]: 2306 mSDtfsCounter, 1527 mSDsluCounter, 5163 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1528 SdHoareTripleChecker+Valid, 7469 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:38:16,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1528 Valid, 7469 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:38:16,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3583 states. [2023-11-19 07:38:16,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3583 to 2330. [2023-11-19 07:38:16,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2330 states, 1819 states have (on average 1.4255085211654754) internal successors, (2593), 1831 states have internal predecessors, (2593), 435 states have call successors, (435), 77 states have call predecessors, (435), 75 states have return successors, (426), 426 states have call predecessors, (426), 426 states have call successors, (426) [2023-11-19 07:38:16,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2330 states to 2330 states and 3454 transitions. [2023-11-19 07:38:16,715 INFO L78 Accepts]: Start accepts. Automaton has 2330 states and 3454 transitions. Word has length 36 [2023-11-19 07:38:16,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:38:16,718 INFO L495 AbstractCegarLoop]: Abstraction has 2330 states and 3454 transitions. [2023-11-19 07:38:16,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:38:16,718 INFO L276 IsEmpty]: Start isEmpty. Operand 2330 states and 3454 transitions. [2023-11-19 07:38:16,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-19 07:38:16,720 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:38:16,721 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:16,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:38:16,721 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:38:16,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:16,722 INFO L85 PathProgramCache]: Analyzing trace with hash 387602855, now seen corresponding path program 1 times [2023-11-19 07:38:16,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:16,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560897172] [2023-11-19 07:38:16,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:16,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:17,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat