./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_7b608c28-30e6-441f-bade-758a9eff5b4e/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b608c28-30e6-441f-bade-758a9eff5b4e/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b608c28-30e6-441f-bade-758a9eff5b4e/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b608c28-30e6-441f-bade-758a9eff5b4e/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b608c28-30e6-441f-bade-758a9eff5b4e/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b608c28-30e6-441f-bade-758a9eff5b4e/bin/uautomizer-verify-uTZkv6EMXl --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 27a3a7bacd5bfaa71ec936fdb60b09adb3a573df62752fe262468d392ed108c3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:20:32,497 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:20:32,638 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b608c28-30e6-441f-bade-758a9eff5b4e/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-12 02:20:32,651 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:20:32,651 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:20:32,690 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:20:32,691 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:20:32,692 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:20:32,693 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:20:32,694 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:20:32,695 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:20:32,695 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:20:32,696 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:20:32,697 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:20:32,698 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:20:32,698 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:20:32,699 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:20:32,700 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:20:32,700 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:20:32,701 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:20:32,702 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:20:32,703 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:20:32,704 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:20:32,704 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:20:32,705 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:20:32,706 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:20:32,707 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:20:32,707 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:20:32,708 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:20:32,709 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:20:32,709 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:20:32,710 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:20:32,711 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:20:32,711 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:20:32,712 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:20:32,712 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:20:32,713 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_7b608c28-30e6-441f-bade-758a9eff5b4e/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b608c28-30e6-441f-bade-758a9eff5b4e/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27a3a7bacd5bfaa71ec936fdb60b09adb3a573df62752fe262468d392ed108c3 [2023-11-12 02:20:33,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:20:33,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:20:33,052 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:20:33,054 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:20:33,055 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:20:33,057 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b608c28-30e6-441f-bade-758a9eff5b4e/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i [2023-11-12 02:20:36,523 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:20:37,333 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:20:37,334 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b608c28-30e6-441f-bade-758a9eff5b4e/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i [2023-11-12 02:20:37,402 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b608c28-30e6-441f-bade-758a9eff5b4e/bin/uautomizer-verify-uTZkv6EMXl/data/460ae0e61/d5c2110a73db4f85b844ac6d4731e416/FLAG7ade9f1d9 [2023-11-12 02:20:37,430 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b608c28-30e6-441f-bade-758a9eff5b4e/bin/uautomizer-verify-uTZkv6EMXl/data/460ae0e61/d5c2110a73db4f85b844ac6d4731e416 [2023-11-12 02:20:37,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:20:37,444 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:20:37,447 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:20:37,448 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:20:37,455 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:20:37,457 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:20:37" (1/1) ... [2023-11-12 02:20:37,458 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5219128e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:37, skipping insertion in model container [2023-11-12 02:20:37,459 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:20:37" (1/1) ... [2023-11-12 02:20:37,657 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:20:40,477 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_7b608c28-30e6-441f-bade-758a9eff5b4e/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i[276778,276791] [2023-11-12 02:20:40,642 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:20:40,696 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:20:40,835 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [5752-5753] [2023-11-12 02:20:40,837 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [5760] [2023-11-12 02:20:40,838 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [5781] [2023-11-12 02:20:40,839 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5784] [2023-11-12 02:20:40,839 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5787] [2023-11-12 02:20:40,839 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5790] [2023-11-12 02:20:40,942 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/zakharov_benchmarks/bench/cpa/work/current--X--drivers/media/firewire/firedtv.ko--X--x1linux-3.8-rc1--X--32_7a--X--cpachecker/linux-3.8-rc1/csd_deg_dscv/17/dscv_tempdir/dscv/ri/32_7a/drivers/media/firewire/firedtv-avc.c.prepared"), "i" (659), "i" (12UL)); [6630-6631] [2023-11-12 02:20:41,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [8238] [2023-11-12 02:20:41,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bts %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr)); [8245] [2023-11-12 02:20:41,115 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [9121] [2023-11-12 02:20:41,169 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [9352] [2023-11-12 02:20:41,186 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [9748] [2023-11-12 02:20:41,203 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_7b608c28-30e6-441f-bade-758a9eff5b4e/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i[276778,276791] [2023-11-12 02:20:41,224 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:20:41,378 WARN L672 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:20:41,378 WARN L672 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:20:41,389 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:20:41,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:41 WrapperNode [2023-11-12 02:20:41,390 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:20:41,392 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:20:41,393 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:20:41,393 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:20:41,404 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:41" (1/1) ... [2023-11-12 02:20:41,539 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:41" (1/1) ... [2023-11-12 02:20:41,863 INFO L138 Inliner]: procedures = 341, calls = 1955, calls flagged for inlining = 158, calls inlined = 154, statements flattened = 5557 [2023-11-12 02:20:41,864 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:20:41,864 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:20:41,864 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:20:41,865 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:20:41,876 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:41" (1/1) ... [2023-11-12 02:20:41,876 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:41" (1/1) ... [2023-11-12 02:20:41,948 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:41" (1/1) ... [2023-11-12 02:20:41,949 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:41" (1/1) ... [2023-11-12 02:20:42,132 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:41" (1/1) ... [2023-11-12 02:20:42,169 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:41" (1/1) ... [2023-11-12 02:20:42,216 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:41" (1/1) ... [2023-11-12 02:20:42,244 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:41" (1/1) ... [2023-11-12 02:20:42,298 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:20:42,300 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:20:42,301 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:20:42,301 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:20:42,302 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:41" (1/1) ... [2023-11-12 02:20:42,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:20:42,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b608c28-30e6-441f-bade-758a9eff5b4e/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:42,345 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b608c28-30e6-441f-bade-758a9eff5b4e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:20:42,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b608c28-30e6-441f-bade-758a9eff5b4e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:20:42,386 INFO L130 BoogieDeclarations]: Found specification of procedure queue_iso [2023-11-12 02:20:42,386 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_iso [2023-11-12 02:20:42,387 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-12 02:20:42,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-12 02:20:42,387 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_channel [2023-11-12 02:20:42,387 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_channel [2023-11-12 02:20:42,387 INFO L130 BoogieDeclarations]: Found specification of procedure fdtv_dvb_register [2023-11-12 02:20:42,387 INFO L138 BoogieDeclarations]: Found implementation of procedure fdtv_dvb_register [2023-11-12 02:20:42,387 INFO L130 BoogieDeclarations]: Found specification of procedure cmp_establish_pp_connection [2023-11-12 02:20:42,388 INFO L138 BoogieDeclarations]: Found implementation of procedure cmp_establish_pp_connection [2023-11-12 02:20:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-12 02:20:42,388 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-12 02:20:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-12 02:20:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure node_req [2023-11-12 02:20:42,388 INFO L138 BoogieDeclarations]: Found implementation of procedure node_req [2023-11-12 02:20:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 02:20:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 02:20:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure cmp_lock [2023-11-12 02:20:42,389 INFO L138 BoogieDeclarations]: Found implementation of procedure cmp_lock [2023-11-12 02:20:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2023-11-12 02:20:42,389 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2023-11-12 02:20:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2023-11-12 02:20:42,389 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2023-11-12 02:20:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 02:20:42,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 02:20:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure cmp_read [2023-11-12 02:20:42,390 INFO L138 BoogieDeclarations]: Found implementation of procedure cmp_read [2023-11-12 02:20:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_demux_mutex_of_firedtv [2023-11-12 02:20:42,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_demux_mutex_of_firedtv [2023-11-12 02:20:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-12 02:20:42,390 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-12 02:20:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 02:20:42,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 02:20:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure pad_operands [2023-11-12 02:20:42,391 INFO L138 BoogieDeclarations]: Found implementation of procedure pad_operands [2023-11-12 02:20:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure avc_tuner_set_pids [2023-11-12 02:20:42,391 INFO L138 BoogieDeclarations]: Found implementation of procedure avc_tuner_set_pids [2023-11-12 02:20:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure fdtv_ca_io_poll [2023-11-12 02:20:42,391 INFO L138 BoogieDeclarations]: Found implementation of procedure fdtv_ca_io_poll [2023-11-12 02:20:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2023-11-12 02:20:42,392 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2023-11-12 02:20:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_generic_release [2023-11-12 02:20:42,392 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_generic_release [2023-11-12 02:20:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure clear_operands [2023-11-12 02:20:42,392 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_operands [2023-11-12 02:20:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-12 02:20:42,393 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-12 02:20:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_generic_open [2023-11-12 02:20:42,393 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_generic_open [2023-11-12 02:20:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:20:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2023-11-12 02:20:42,393 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2023-11-12 02:20:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure avc_write [2023-11-12 02:20:42,393 INFO L138 BoogieDeclarations]: Found implementation of procedure avc_write [2023-11-12 02:20:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure get_opcr [2023-11-12 02:20:42,394 INFO L138 BoogieDeclarations]: Found implementation of procedure get_opcr [2023-11-12 02:20:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:20:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2023-11-12 02:20:42,394 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2023-11-12 02:20:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure collect_channels [2023-11-12 02:20:42,394 INFO L138 BoogieDeclarations]: Found implementation of procedure collect_channels [2023-11-12 02:20:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:20:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:20:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure fw_iso_context_destroy [2023-11-12 02:20:42,395 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_iso_context_destroy [2023-11-12 02:20:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure fdtv_unregister_rc [2023-11-12 02:20:42,395 INFO L138 BoogieDeclarations]: Found implementation of procedure fdtv_unregister_rc [2023-11-12 02:20:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 02:20:42,395 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 02:20:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure avc_tuner_status [2023-11-12 02:20:42,396 INFO L138 BoogieDeclarations]: Found implementation of procedure avc_tuner_status [2023-11-12 02:20:42,396 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-12 02:20:42,396 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-12 02:20:42,396 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-12 02:20:42,396 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-12 02:20:42,396 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-12 02:20:42,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-12 02:20:42,396 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-12 02:20:42,397 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-12 02:20:42,397 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-12 02:20:42,397 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-12 02:20:42,397 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2023-11-12 02:20:42,397 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2023-11-12 02:20:42,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_avc_mutex_of_firedtv [2023-11-12 02:20:42,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_avc_mutex_of_firedtv [2023-11-12 02:20:42,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 02:20:42,398 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-12 02:20:42,398 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-12 02:20:42,398 INFO L130 BoogieDeclarations]: Found specification of procedure node_remove [2023-11-12 02:20:42,398 INFO L138 BoogieDeclarations]: Found implementation of procedure node_remove [2023-11-12 02:20:42,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 02:20:42,398 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-12 02:20:42,398 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-12 02:20:42,398 INFO L130 BoogieDeclarations]: Found specification of procedure fdtv_dvb_unregister [2023-11-12 02:20:42,399 INFO L138 BoogieDeclarations]: Found implementation of procedure fdtv_dvb_unregister [2023-11-12 02:20:42,399 INFO L130 BoogieDeclarations]: Found specification of procedure add_pid_filter [2023-11-12 02:20:42,399 INFO L138 BoogieDeclarations]: Found implementation of procedure add_pid_filter [2023-11-12 02:20:42,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:20:42,399 INFO L130 BoogieDeclarations]: Found specification of procedure is_register_rc [2023-11-12 02:20:42,399 INFO L138 BoogieDeclarations]: Found implementation of procedure is_register_rc [2023-11-12 02:20:42,399 INFO L130 BoogieDeclarations]: Found specification of procedure dealloc_channel [2023-11-12 02:20:42,399 INFO L138 BoogieDeclarations]: Found implementation of procedure dealloc_channel [2023-11-12 02:20:42,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 02:20:42,400 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 02:20:42,400 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 02:20:42,400 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 02:20:42,400 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2023-11-12 02:20:42,400 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2023-11-12 02:20:42,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:20:42,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_avc_mutex_of_firedtv [2023-11-12 02:20:42,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_avc_mutex_of_firedtv [2023-11-12 02:20:42,401 INFO L130 BoogieDeclarations]: Found specification of procedure debug_fcp [2023-11-12 02:20:42,401 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_fcp [2023-11-12 02:20:42,401 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2023-11-12 02:20:42,401 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2023-11-12 02:20:42,401 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-12 02:20:42,401 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-12 02:20:42,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 02:20:42,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 02:20:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_net_release [2023-11-12 02:20:42,402 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_net_release [2023-11-12 02:20:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:20:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:20:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:20:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-12 02:20:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure set_opcr [2023-11-12 02:20:42,403 INFO L138 BoogieDeclarations]: Found implementation of procedure set_opcr [2023-11-12 02:20:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-12 02:20:42,403 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-12 02:20:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-12 02:20:42,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-12 02:20:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure fw_iso_buffer_destroy [2023-11-12 02:20:42,403 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_iso_buffer_destroy [2023-11-12 02:20:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure node_probe [2023-11-12 02:20:42,404 INFO L138 BoogieDeclarations]: Found implementation of procedure node_probe [2023-11-12 02:20:42,404 INFO L130 BoogieDeclarations]: Found specification of procedure get_ca_object_pos [2023-11-12 02:20:42,404 INFO L138 BoogieDeclarations]: Found implementation of procedure get_ca_object_pos [2023-11-12 02:20:42,404 INFO L130 BoogieDeclarations]: Found specification of procedure node_update [2023-11-12 02:20:42,404 INFO L138 BoogieDeclarations]: Found implementation of procedure node_update [2023-11-12 02:20:42,404 INFO L130 BoogieDeclarations]: Found specification of procedure avc_register_remote_control [2023-11-12 02:20:42,404 INFO L138 BoogieDeclarations]: Found implementation of procedure avc_register_remote_control [2023-11-12 02:20:42,405 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2023-11-12 02:20:42,405 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2023-11-12 02:20:42,405 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-12 02:20:42,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-12 02:20:42,405 INFO L130 BoogieDeclarations]: Found specification of procedure device_of [2023-11-12 02:20:42,405 INFO L138 BoogieDeclarations]: Found implementation of procedure device_of [2023-11-12 02:20:42,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_demux_mutex_of_firedtv [2023-11-12 02:20:42,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_demux_mutex_of_firedtv [2023-11-12 02:20:42,406 INFO L130 BoogieDeclarations]: Found specification of procedure fw_core_remove_address_handler [2023-11-12 02:20:42,406 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_core_remove_address_handler [2023-11-12 02:20:42,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:20:42,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:20:42,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:20:43,297 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:20:43,301 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:20:57,737 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:20:57,764 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:20:57,764 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:20:57,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:20:57 BoogieIcfgContainer [2023-11-12 02:20:57,769 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:20:57,773 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:20:57,773 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:20:57,777 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:20:57,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:20:37" (1/3) ... [2023-11-12 02:20:57,779 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c8d7f4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:20:57, skipping insertion in model container [2023-11-12 02:20:57,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:41" (2/3) ... [2023-11-12 02:20:57,780 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c8d7f4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:20:57, skipping insertion in model container [2023-11-12 02:20:57,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:20:57" (3/3) ... [2023-11-12 02:20:57,782 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i [2023-11-12 02:20:57,802 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:20:57,802 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:20:57,904 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:20:57,911 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;@624839f8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:20:57,911 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:20:57,923 INFO L276 IsEmpty]: Start isEmpty. Operand has 1567 states, 1218 states have (on average 1.4211822660098523) internal successors, (1731), 1241 states have internal predecessors, (1731), 279 states have call successors, (279), 68 states have call predecessors, (279), 68 states have return successors, (279), 279 states have call predecessors, (279), 279 states have call successors, (279) [2023-11-12 02:20:57,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 02:20:57,937 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:57,938 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:57,938 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:20:57,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:57,943 INFO L85 PathProgramCache]: Analyzing trace with hash -130381350, now seen corresponding path program 1 times [2023-11-12 02:20:57,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:57,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346657289] [2023-11-12 02:20:57,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:57,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:58,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:20:58,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:58,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346657289] [2023-11-12 02:20:58,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346657289] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:58,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:58,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:20:58,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629004962] [2023-11-12 02:20:58,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:58,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:20:58,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:58,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:20:58,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:20:58,647 INFO L87 Difference]: Start difference. First operand has 1567 states, 1218 states have (on average 1.4211822660098523) internal successors, (1731), 1241 states have internal predecessors, (1731), 279 states have call successors, (279), 68 states have call predecessors, (279), 68 states have return successors, (279), 279 states have call predecessors, (279), 279 states have call successors, (279) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:20:59,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:59,017 INFO L93 Difference]: Finished difference Result 4482 states and 6655 transitions. [2023-11-12 02:20:59,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:20:59,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-12 02:20:59,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:59,067 INFO L225 Difference]: With dead ends: 4482 [2023-11-12 02:20:59,067 INFO L226 Difference]: Without dead ends: 2908 [2023-11-12 02:20:59,092 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 [2023-11-12 02:20:59,098 INFO L413 NwaCegarLoop]: 2425 mSDtfsCounter, 1925 mSDsluCounter, 2241 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1925 SdHoareTripleChecker+Valid, 4666 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:59,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1925 Valid, 4666 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:20:59,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2023-11-12 02:20:59,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 2890. [2023-11-12 02:20:59,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2890 states, 2261 states have (on average 1.4011499336576736) internal successors, (3168), 2296 states have internal predecessors, (3168), 494 states have call successors, (494), 135 states have call predecessors, (494), 134 states have return successors, (485), 484 states have call predecessors, (485), 485 states have call successors, (485) [2023-11-12 02:20:59,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2890 states to 2890 states and 4147 transitions. [2023-11-12 02:20:59,581 INFO L78 Accepts]: Start accepts. Automaton has 2890 states and 4147 transitions. Word has length 17 [2023-11-12 02:20:59,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:59,582 INFO L495 AbstractCegarLoop]: Abstraction has 2890 states and 4147 transitions. [2023-11-12 02:20:59,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:20:59,583 INFO L276 IsEmpty]: Start isEmpty. Operand 2890 states and 4147 transitions. [2023-11-12 02:20:59,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 02:20:59,586 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:59,586 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:59,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:20:59,587 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:20:59,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:59,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1174707686, now seen corresponding path program 1 times [2023-11-12 02:20:59,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:59,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92676973] [2023-11-12 02:20:59,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:59,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:59,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:59,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:20:59,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:59,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92676973] [2023-11-12 02:20:59,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92676973] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:59,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:59,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:20:59,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765998009] [2023-11-12 02:20:59,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:59,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:20:59,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:59,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:20:59,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:20:59,845 INFO L87 Difference]: Start difference. First operand 2890 states and 4147 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2023-11-12 02:21:00,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:21:00,019 INFO L93 Difference]: Finished difference Result 3104 states and 4447 transitions. [2023-11-12 02:21:00,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:21:00,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 19 [2023-11-12 02:21:00,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:21:00,046 INFO L225 Difference]: With dead ends: 3104 [2023-11-12 02:21:00,046 INFO L226 Difference]: Without dead ends: 3100 [2023-11-12 02:21:00,052 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 [2023-11-12 02:21:00,054 INFO L413 NwaCegarLoop]: 2245 mSDtfsCounter, 1445 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1445 SdHoareTripleChecker+Valid, 3174 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:21:00,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1445 Valid, 3174 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:21:00,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3100 states. [2023-11-12 02:21:00,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3100 to 3098. [2023-11-12 02:21:00,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3098 states, 2447 states have (on average 1.4102983244789538) internal successors, (3451), 2482 states have internal predecessors, (3451), 498 states have call successors, (498), 153 states have call predecessors, (498), 152 states have return successors, (491), 490 states have call predecessors, (491), 491 states have call successors, (491) [2023-11-12 02:21:00,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3098 states to 3098 states and 4440 transitions. [2023-11-12 02:21:00,309 INFO L78 Accepts]: Start accepts. Automaton has 3098 states and 4440 transitions. Word has length 19 [2023-11-12 02:21:00,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:21:00,310 INFO L495 AbstractCegarLoop]: Abstraction has 3098 states and 4440 transitions. [2023-11-12 02:21:00,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2023-11-12 02:21:00,310 INFO L276 IsEmpty]: Start isEmpty. Operand 3098 states and 4440 transitions. [2023-11-12 02:21:00,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-12 02:21:00,313 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:21:00,313 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] [2023-11-12 02:21:00,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:21:00,313 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:21:00,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:00,314 INFO L85 PathProgramCache]: Analyzing trace with hash -2056742703, now seen corresponding path program 1 times [2023-11-12 02:21:00,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:21:00,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555630810] [2023-11-12 02:21:00,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:00,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:21:00,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:21:00,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:21:00,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:21:00,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555630810] [2023-11-12 02:21:00,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555630810] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:21:00,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:21:00,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:21:00,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031952651] [2023-11-12 02:21:00,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:21:00,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:21:00,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:21:00,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:21:00,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:21:00,526 INFO L87 Difference]: Start difference. First operand 3098 states and 4440 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2023-11-12 02:21:00,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:21:00,679 INFO L93 Difference]: Finished difference Result 3100 states and 4441 transitions. [2023-11-12 02:21:00,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:21:00,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 20 [2023-11-12 02:21:00,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:21:00,705 INFO L225 Difference]: With dead ends: 3100 [2023-11-12 02:21:00,705 INFO L226 Difference]: Without dead ends: 3097 [2023-11-12 02:21:00,712 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 [2023-11-12 02:21:00,716 INFO L413 NwaCegarLoop]: 2237 mSDtfsCounter, 2221 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2221 SdHoareTripleChecker+Valid, 2237 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:21:00,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2221 Valid, 2237 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:21:00,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3097 states. [2023-11-12 02:21:00,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3097 to 3097. [2023-11-12 02:21:00,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3097 states, 2447 states have (on average 1.409889660809154) internal successors, (3450), 2481 states have internal predecessors, (3450), 497 states have call successors, (497), 153 states have call predecessors, (497), 152 states have return successors, (491), 490 states have call predecessors, (491), 491 states have call successors, (491) [2023-11-12 02:21:00,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3097 states to 3097 states and 4438 transitions. [2023-11-12 02:21:00,956 INFO L78 Accepts]: Start accepts. Automaton has 3097 states and 4438 transitions. Word has length 20 [2023-11-12 02:21:00,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:21:00,957 INFO L495 AbstractCegarLoop]: Abstraction has 3097 states and 4438 transitions. [2023-11-12 02:21:00,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2023-11-12 02:21:00,957 INFO L276 IsEmpty]: Start isEmpty. Operand 3097 states and 4438 transitions. [2023-11-12 02:21:00,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-12 02:21:00,960 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:21:00,960 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] [2023-11-12 02:21:00,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:21:00,960 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:21:00,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:00,961 INFO L85 PathProgramCache]: Analyzing trace with hash 664947709, now seen corresponding path program 1 times [2023-11-12 02:21:00,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:21:00,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553708332] [2023-11-12 02:21:00,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:00,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:21:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:21:01,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:21:01,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:21:01,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553708332] [2023-11-12 02:21:01,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553708332] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:21:01,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:21:01,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:21:01,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521266796] [2023-11-12 02:21:01,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:21:01,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:21:01,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:21:01,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:21:01,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:21:01,224 INFO L87 Difference]: Start difference. First operand 3097 states and 4438 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2023-11-12 02:21:01,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:21:01,647 INFO L93 Difference]: Finished difference Result 9261 states and 13351 transitions. [2023-11-12 02:21:01,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:21:01,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 21 [2023-11-12 02:21:01,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:21:01,710 INFO L225 Difference]: With dead ends: 9261 [2023-11-12 02:21:01,711 INFO L226 Difference]: Without dead ends: 6167 [2023-11-12 02:21:01,736 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 [2023-11-12 02:21:01,745 INFO L413 NwaCegarLoop]: 2426 mSDtfsCounter, 2223 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2223 SdHoareTripleChecker+Valid, 4640 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:21:01,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2223 Valid, 4640 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:21:01,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6167 states. [2023-11-12 02:21:02,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6167 to 6153. [2023-11-12 02:21:02,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6153 states, 4868 states have (on average 1.4104354971240756) internal successors, (6866), 4937 states have internal predecessors, (6866), 982 states have call successors, (982), 304 states have call predecessors, (982), 302 states have return successors, (1014), 967 states have call predecessors, (1014), 974 states have call successors, (1014) [2023-11-12 02:21:02,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6153 states to 6153 states and 8862 transitions. [2023-11-12 02:21:02,221 INFO L78 Accepts]: Start accepts. Automaton has 6153 states and 8862 transitions. Word has length 21 [2023-11-12 02:21:02,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:21:02,221 INFO L495 AbstractCegarLoop]: Abstraction has 6153 states and 8862 transitions. [2023-11-12 02:21:02,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2023-11-12 02:21:02,223 INFO L276 IsEmpty]: Start isEmpty. Operand 6153 states and 8862 transitions. [2023-11-12 02:21:02,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-12 02:21:02,227 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:21:02,227 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] [2023-11-12 02:21:02,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:21:02,227 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:21:02,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:02,228 INFO L85 PathProgramCache]: Analyzing trace with hash -861990572, now seen corresponding path program 1 times [2023-11-12 02:21:02,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:21:02,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474536859] [2023-11-12 02:21:02,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:02,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:21:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:21:02,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:21:02,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:21:02,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474536859] [2023-11-12 02:21:02,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474536859] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:21:02,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:21:02,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:21:02,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596679045] [2023-11-12 02:21:02,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:21:02,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:21:02,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:21:02,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:21:02,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:21:02,487 INFO L87 Difference]: Start difference. First operand 6153 states and 8862 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-12 02:21:02,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:21:02,845 INFO L93 Difference]: Finished difference Result 6155 states and 8863 transitions. [2023-11-12 02:21:02,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:21:02,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 22 [2023-11-12 02:21:02,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:21:02,904 INFO L225 Difference]: With dead ends: 6155 [2023-11-12 02:21:02,904 INFO L226 Difference]: Without dead ends: 6152 [2023-11-12 02:21:02,909 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 [2023-11-12 02:21:02,910 INFO L413 NwaCegarLoop]: 2235 mSDtfsCounter, 2217 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2217 SdHoareTripleChecker+Valid, 2235 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:21:02,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2217 Valid, 2235 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:21:02,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6152 states. [2023-11-12 02:21:03,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6152 to 6152. [2023-11-12 02:21:03,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6152 states, 4868 states have (on average 1.410230073952342) internal successors, (6865), 4936 states have internal predecessors, (6865), 981 states have call successors, (981), 304 states have call predecessors, (981), 302 states have return successors, (1014), 967 states have call predecessors, (1014), 974 states have call successors, (1014) [2023-11-12 02:21:03,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6152 states to 6152 states and 8860 transitions. [2023-11-12 02:21:03,409 INFO L78 Accepts]: Start accepts. Automaton has 6152 states and 8860 transitions. Word has length 22 [2023-11-12 02:21:03,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:21:03,409 INFO L495 AbstractCegarLoop]: Abstraction has 6152 states and 8860 transitions. [2023-11-12 02:21:03,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-12 02:21:03,410 INFO L276 IsEmpty]: Start isEmpty. Operand 6152 states and 8860 transitions. [2023-11-12 02:21:03,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-12 02:21:03,412 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:21:03,412 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] [2023-11-12 02:21:03,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:21:03,415 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:21:03,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:03,415 INFO L85 PathProgramCache]: Analyzing trace with hash -952432160, now seen corresponding path program 1 times [2023-11-12 02:21:03,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:21:03,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180529263] [2023-11-12 02:21:03,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:03,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:21:03,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:21:03,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:21:03,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:21:03,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180529263] [2023-11-12 02:21:03,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180529263] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:21:03,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:21:03,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:21:03,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337056593] [2023-11-12 02:21:03,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:21:03,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:21:03,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:21:03,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:21:03,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:21:03,709 INFO L87 Difference]: Start difference. First operand 6152 states and 8860 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-11-12 02:21:04,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:21:04,019 INFO L93 Difference]: Finished difference Result 6154 states and 8861 transitions. [2023-11-12 02:21:04,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:21:04,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 23 [2023-11-12 02:21:04,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:21:04,080 INFO L225 Difference]: With dead ends: 6154 [2023-11-12 02:21:04,081 INFO L226 Difference]: Without dead ends: 6140 [2023-11-12 02:21:04,086 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 [2023-11-12 02:21:04,087 INFO L413 NwaCegarLoop]: 2234 mSDtfsCounter, 2214 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2214 SdHoareTripleChecker+Valid, 2234 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:21:04,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2214 Valid, 2234 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:21:04,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6140 states. [2023-11-12 02:21:04,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6140 to 6140. [2023-11-12 02:21:04,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6140 states, 4859 states have (on average 1.4099608973039721) internal successors, (6851), 4925 states have internal predecessors, (6851), 978 states have call successors, (978), 304 states have call predecessors, (978), 302 states have return successors, (1012), 966 states have call predecessors, (1012), 972 states have call successors, (1012) [2023-11-12 02:21:04,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6140 states to 6140 states and 8841 transitions. [2023-11-12 02:21:04,612 INFO L78 Accepts]: Start accepts. Automaton has 6140 states and 8841 transitions. Word has length 23 [2023-11-12 02:21:04,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:21:04,613 INFO L495 AbstractCegarLoop]: Abstraction has 6140 states and 8841 transitions. [2023-11-12 02:21:04,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-11-12 02:21:04,614 INFO L276 IsEmpty]: Start isEmpty. Operand 6140 states and 8841 transitions. [2023-11-12 02:21:04,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-12 02:21:04,620 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:21:04,621 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:21:04,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:21:04,621 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:21:04,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:04,622 INFO L85 PathProgramCache]: Analyzing trace with hash 144463728, now seen corresponding path program 1 times [2023-11-12 02:21:04,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:21:04,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222221503] [2023-11-12 02:21:04,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:04,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:21:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:21:05,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-12 02:21:05,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:21:05,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-12 02:21:05,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:21:05,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-12 02:21:05,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:21:05,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:21:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:21:05,487 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 02:21:05,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:21:05,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222221503] [2023-11-12 02:21:05,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222221503] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:21:05,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:21:05,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:21:05,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165761341] [2023-11-12 02:21:05,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:21:05,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:21:05,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:21:05,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:21:05,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:21:05,492 INFO L87 Difference]: Start difference. First operand 6140 states and 8841 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 02:21:10,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:21:14,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:21:19,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []