./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75bf060d-f392-4988-b633-f0d5d66bed58/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75bf060d-f392-4988-b633-f0d5d66bed58/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_75bf060d-f392-4988-b633-f0d5d66bed58/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75bf060d-f392-4988-b633-f0d5d66bed58/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75bf060d-f392-4988-b633-f0d5d66bed58/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_75bf060d-f392-4988-b633-f0d5d66bed58/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 e37e45521ffb127b83b9baab443e42b7c078cf8a8451cb2a1813ac325e01717d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:57:31,243 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:57:31,313 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75bf060d-f392-4988-b633-f0d5d66bed58/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 07:57:31,319 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:57:31,319 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:57:31,345 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:57:31,345 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:57:31,346 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:57:31,347 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:57:31,347 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:57:31,348 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:57:31,349 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:57:31,350 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:57:31,350 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:57:31,351 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:57:31,351 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:57:31,352 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:57:31,353 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:57:31,353 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:57:31,354 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:57:31,354 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:57:31,355 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:57:31,356 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:57:31,356 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:57:31,357 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:57:31,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:57:31,358 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:57:31,358 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:57:31,359 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:57:31,359 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:57:31,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:57:31,360 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:57:31,360 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:57:31,361 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:57:31,361 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:57:31,361 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:57:31,361 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_75bf060d-f392-4988-b633-f0d5d66bed58/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75bf060d-f392-4988-b633-f0d5d66bed58/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e37e45521ffb127b83b9baab443e42b7c078cf8a8451cb2a1813ac325e01717d [2023-11-19 07:57:31,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:57:31,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:57:31,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:57:31,665 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:57:31,665 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:57:31,667 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75bf060d-f392-4988-b633-f0d5d66bed58/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i [2023-11-19 07:57:34,754 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:57:35,534 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:57:35,535 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75bf060d-f392-4988-b633-f0d5d66bed58/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i [2023-11-19 07:57:35,607 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75bf060d-f392-4988-b633-f0d5d66bed58/bin/uautomizer-verify-uCwYo4JHxu/data/948061ce7/4a86907c806149c48df899422dff9767/FLAG17857d532 [2023-11-19 07:57:35,626 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75bf060d-f392-4988-b633-f0d5d66bed58/bin/uautomizer-verify-uCwYo4JHxu/data/948061ce7/4a86907c806149c48df899422dff9767 [2023-11-19 07:57:35,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:57:35,636 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:57:35,639 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:57:35,640 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:57:35,646 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:57:35,647 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:35" (1/1) ... [2023-11-19 07:57:35,648 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@646e1c66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:35, skipping insertion in model container [2023-11-19 07:57:35,648 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:35" (1/1) ... [2023-11-19 07:57:35,859 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:57:39,286 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_75bf060d-f392-4988-b633-f0d5d66bed58/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i[353005,353018] [2023-11-19 07:57:39,557 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:57:39,717 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:57:39,860 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"); [6124-6125] [2023-11-19 07:57:39,899 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/gpu/drm/ast/ast.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/gpu/drm/ast/ast_main.c.prepared"), "i" (553), "i" (12UL)); [6776-6777] [2023-11-19 07:57:39,905 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %0,%1": : "r" (val), "m" (*((unsigned short volatile *)addr)): "memory"); [7041] [2023-11-19 07:57:39,905 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [7048] [2023-11-19 07:57:40,181 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_75bf060d-f392-4988-b633-f0d5d66bed58/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i[353005,353018] [2023-11-19 07:57:40,206 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:57:40,618 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:57:40,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:40 WrapperNode [2023-11-19 07:57:40,619 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:57:40,621 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:57:40,621 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:57:40,621 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:57:40,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:40" (1/1) ... [2023-11-19 07:57:40,826 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:40" (1/1) ... [2023-11-19 07:57:41,172 INFO L138 Inliner]: procedures = 511, calls = 3880, calls flagged for inlining = 265, calls inlined = 264, statements flattened = 11335 [2023-11-19 07:57:41,173 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:57:41,174 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:57:41,174 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:57:41,174 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:57:41,184 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:40" (1/1) ... [2023-11-19 07:57:41,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:40" (1/1) ... [2023-11-19 07:57:41,270 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:40" (1/1) ... [2023-11-19 07:57:41,271 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:40" (1/1) ... [2023-11-19 07:57:41,579 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:40" (1/1) ... [2023-11-19 07:57:41,627 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:40" (1/1) ... [2023-11-19 07:57:41,673 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:40" (1/1) ... [2023-11-19 07:57:41,699 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:40" (1/1) ... [2023-11-19 07:57:41,749 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:57:41,750 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:57:41,750 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:57:41,750 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:57:41,751 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:40" (1/1) ... [2023-11-19 07:57:41,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:57:41,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75bf060d-f392-4988-b633-f0d5d66bed58/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:41,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75bf060d-f392-4988-b633-f0d5d66bed58/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:57:41,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75bf060d-f392-4988-b633-f0d5d66bed58/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:57:41,943 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_ref [2023-11-19 07:57:41,943 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_ref [2023-11-19 07:57:41,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 07:57:41,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 07:57:41,943 INFO L130 BoogieDeclarations]: Found specification of procedure ast_drm_freeze [2023-11-19 07:57:41,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_drm_freeze [2023-11-19 07:57:41,944 INFO L130 BoogieDeclarations]: Found specification of procedure drm_helper_probe_single_connector_modes [2023-11-19 07:57:41,944 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_helper_probe_single_connector_modes [2023-11-19 07:57:41,944 INFO L130 BoogieDeclarations]: Found specification of procedure drm_err [2023-11-19 07:57:41,944 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_err [2023-11-19 07:57:41,944 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_dpms [2023-11-19 07:57:41,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_dpms [2023-11-19 07:57:41,944 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_pin [2023-11-19 07:57:41,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_pin [2023-11-19 07:57:41,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_struct_mutex_of_drm_device [2023-11-19 07:57:41,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_struct_mutex_of_drm_device [2023-11-19 07:57:41,945 INFO L130 BoogieDeclarations]: Found specification of procedure ast_read32 [2023-11-19 07:57:41,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_read32 [2023-11-19 07:57:41,945 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-19 07:57:41,945 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-19 07:57:41,945 INFO L130 BoogieDeclarations]: Found specification of procedure cbr_dll2 [2023-11-19 07:57:41,945 INFO L138 BoogieDeclarations]: Found implementation of procedure cbr_dll2 [2023-11-19 07:57:41,945 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_mode_fixup [2023-11-19 07:57:41,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_mode_fixup [2023-11-19 07:57:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:57:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure moutdwm [2023-11-19 07:57:41,946 INFO L138 BoogieDeclarations]: Found implementation of procedure moutdwm [2023-11-19 07:57:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure ast_drm_thaw [2023-11-19 07:57:41,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_drm_thaw [2023-11-19 07:57:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure ast_dirty_update [2023-11-19 07:57:41,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_dirty_update [2023-11-19 07:57:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure ast_set_index_reg_mask [2023-11-19 07:57:41,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_set_index_reg_mask [2023-11-19 07:57:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kmap [2023-11-19 07:57:41,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kmap [2023-11-19 07:57:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_placement [2023-11-19 07:57:41,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_placement [2023-11-19 07:57:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_load_lut [2023-11-19 07:57:41,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_load_lut [2023-11-19 07:57:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 07:57:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kunmap [2023-11-19 07:57:41,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kunmap [2023-11-19 07:57:41,948 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_unref [2023-11-19 07:57:41,948 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_unref [2023-11-19 07:57:41,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 07:57:41,948 INFO L130 BoogieDeclarations]: Found specification of procedure ast_user_framebuffer_destroy [2023-11-19 07:57:41,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_user_framebuffer_destroy [2023-11-19 07:57:41,948 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_disable [2023-11-19 07:57:41,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_disable [2023-11-19 07:57:41,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:57:41,949 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_mode_set_base [2023-11-19 07:57:41,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_mode_set_base [2023-11-19 07:57:41,949 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2023-11-19 07:57:41,949 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2023-11-19 07:57:41,949 INFO L130 BoogieDeclarations]: Found specification of procedure mindwm [2023-11-19 07:57:41,949 INFO L138 BoogieDeclarations]: Found implementation of procedure mindwm [2023-11-19 07:57:41,949 INFO L130 BoogieDeclarations]: Found specification of procedure ast_io_read8 [2023-11-19 07:57:41,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_io_read8 [2023-11-19 07:57:41,949 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-11-19 07:57:41,950 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-11-19 07:57:41,950 INFO L130 BoogieDeclarations]: Found specification of procedure ast_user_framebuffer_create_handle [2023-11-19 07:57:41,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_user_framebuffer_create_handle [2023-11-19 07:57:41,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:57:41,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:57:41,950 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_gamma_set [2023-11-19 07:57:41,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_gamma_set [2023-11-19 07:57:41,950 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 07:57:41,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 07:57:41,951 INFO L130 BoogieDeclarations]: Found specification of procedure ast_fbdev_set_suspend [2023-11-19 07:57:41,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_fbdev_set_suspend [2023-11-19 07:57:41,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:57:41,951 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 07:57:41,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 07:57:41,951 INFO L130 BoogieDeclarations]: Found specification of procedure ast_framebuffer_init [2023-11-19 07:57:41,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_framebuffer_init [2023-11-19 07:57:41,955 INFO L130 BoogieDeclarations]: Found specification of procedure ast_cursor_set [2023-11-19 07:57:41,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_cursor_set [2023-11-19 07:57:41,956 INFO L130 BoogieDeclarations]: Found specification of procedure ast_open_key [2023-11-19 07:57:41,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_open_key [2023-11-19 07:57:41,956 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_validate [2023-11-19 07:57:41,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_validate [2023-11-19 07:57:41,957 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_test_burst2 [2023-11-19 07:57:41,957 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_test_burst2 [2023-11-19 07:57:41,957 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_unreserve [2023-11-19 07:57:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_unreserve [2023-11-19 07:57:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-19 07:57:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-19 07:57:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:57:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:57:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2023-11-19 07:57:41,959 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2023-11-19 07:57:41,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 07:57:41,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 07:57:41,960 INFO L130 BoogieDeclarations]: Found specification of procedure ast_connector_detect [2023-11-19 07:57:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_connector_detect [2023-11-19 07:57:41,961 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_prepare [2023-11-19 07:57:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_prepare [2023-11-19 07:57:41,961 INFO L130 BoogieDeclarations]: Found specification of procedure ast_get_index_reg_mask [2023-11-19 07:57:41,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_get_index_reg_mask [2023-11-19 07:57:41,962 INFO L130 BoogieDeclarations]: Found specification of procedure ast_gem_create [2023-11-19 07:57:41,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_gem_create [2023-11-19 07:57:41,962 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_prepare [2023-11-19 07:57:41,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_prepare [2023-11-19 07:57:41,962 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 07:57:41,962 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 07:57:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 07:57:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 07:57:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_reserve [2023-11-19 07:57:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_reserve [2023-11-19 07:57:41,964 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference_unlocked [2023-11-19 07:57:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference_unlocked [2023-11-19 07:57:41,964 INFO L130 BoogieDeclarations]: Found specification of procedure ast_mmap [2023-11-19 07:57:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_mmap [2023-11-19 07:57:41,964 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-19 07:57:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-19 07:57:41,965 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-11-19 07:57:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-11-19 07:57:41,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:57:41,966 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_free [2023-11-19 07:57:41,966 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_release [2023-11-19 07:57:41,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_struct_mutex_of_drm_device [2023-11-19 07:57:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_struct_mutex_of_drm_device [2023-11-19 07:57:41,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:57:41,967 INFO L130 BoogieDeclarations]: Found specification of procedure ast_connector_destroy [2023-11-19 07:57:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_connector_destroy [2023-11-19 07:57:41,967 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_commit [2023-11-19 07:57:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_commit [2023-11-19 07:57:41,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:57:41,968 INFO L130 BoogieDeclarations]: Found specification of procedure drm_ut_debug_printk [2023-11-19 07:57:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_ut_debug_printk [2023-11-19 07:57:41,968 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 07:57:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 07:57:41,968 INFO L130 BoogieDeclarations]: Found specification of procedure ast_pm_resume [2023-11-19 07:57:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_pm_resume [2023-11-19 07:57:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-19 07:57:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-19 07:57:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure ast_io_write8 [2023-11-19 07:57:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_io_write8 [2023-11-19 07:57:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_kmap_obj_virtual [2023-11-19 07:57:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_kmap_obj_virtual [2023-11-19 07:57:41,970 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_destroy [2023-11-19 07:57:41,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_destroy [2023-11-19 07:57:41,971 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_gpu_offset [2023-11-19 07:57:41,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_gpu_offset [2023-11-19 07:57:41,971 INFO L130 BoogieDeclarations]: Found specification of procedure ast_write32 [2023-11-19 07:57:41,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_write32 [2023-11-19 07:57:41,971 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_reset [2023-11-19 07:57:41,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_reset [2023-11-19 07:57:41,971 INFO L130 BoogieDeclarations]: Found specification of procedure ast_gem_free_object [2023-11-19 07:57:41,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_gem_free_object [2023-11-19 07:57:41,972 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference_unlocked___0 [2023-11-19 07:57:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference_unlocked___0 [2023-11-19 07:57:41,976 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_backend_destroy [2023-11-19 07:57:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_backend_destroy [2023-11-19 07:57:41,976 INFO L130 BoogieDeclarations]: Found specification of procedure ast_pci_remove [2023-11-19 07:57:41,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_pci_remove [2023-11-19 07:57:41,978 INFO L130 BoogieDeclarations]: Found specification of procedure drm_helper_connector_dpms [2023-11-19 07:57:41,978 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_helper_connector_dpms [2023-11-19 07:57:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_mode_set [2023-11-19 07:57:41,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_mode_set [2023-11-19 07:57:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_test_single2 [2023-11-19 07:57:41,984 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_test_single2 [2023-11-19 07:57:41,984 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 07:57:41,985 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 07:57:41,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:57:41,985 INFO L130 BoogieDeclarations]: Found specification of procedure ast_set_index_reg [2023-11-19 07:57:41,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_set_index_reg [2023-11-19 07:57:41,986 INFO L130 BoogieDeclarations]: Found specification of procedure cbrdlli_ast2150 [2023-11-19 07:57:41,986 INFO L138 BoogieDeclarations]: Found implementation of procedure cbrdlli_ast2150 [2023-11-19 07:57:41,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 07:57:41,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 07:57:41,987 INFO L130 BoogieDeclarations]: Found specification of procedure drm_fasync [2023-11-19 07:57:41,987 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_fasync [2023-11-19 07:57:41,987 INFO L130 BoogieDeclarations]: Found specification of procedure drm_framebuffer_cleanup [2023-11-19 07:57:41,987 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_framebuffer_cleanup [2023-11-19 07:57:41,987 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_commit [2023-11-19 07:57:41,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_commit [2023-11-19 07:57:41,987 INFO L130 BoogieDeclarations]: Found specification of procedure drm_crtc_helper_set_config [2023-11-19 07:57:41,988 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_crtc_helper_set_config [2023-11-19 07:57:41,988 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2023-11-19 07:57:41,988 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2023-11-19 07:57:41,988 INFO L130 BoogieDeclarations]: Found specification of procedure ast_cursor_move [2023-11-19 07:57:41,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_cursor_move [2023-11-19 07:57:41,988 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2023-11-19 07:57:41,988 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2023-11-19 07:57:41,989 INFO L130 BoogieDeclarations]: Found specification of procedure drm_poll [2023-11-19 07:57:41,989 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_poll [2023-11-19 07:57:41,989 INFO L130 BoogieDeclarations]: Found specification of procedure drm_mode_connector_update_edid_property [2023-11-19 07:57:41,989 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_mode_connector_update_edid_property [2023-11-19 07:57:41,989 INFO L130 BoogieDeclarations]: Found specification of procedure cbr_scan2 [2023-11-19 07:57:41,989 INFO L138 BoogieDeclarations]: Found implementation of procedure cbr_scan2 [2023-11-19 07:57:41,989 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-19 07:57:41,990 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-19 07:57:41,990 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_tt_unpopulate [2023-11-19 07:57:41,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_tt_unpopulate [2023-11-19 07:57:41,991 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_lookup [2023-11-19 07:57:41,992 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_lookup [2023-11-19 07:57:41,992 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_destroy [2023-11-19 07:57:41,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_destroy [2023-11-19 07:57:41,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:57:43,038 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:57:43,043 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:58:02,993 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ast_gem_init_object_returnLabel#1: main_#t~ret94#1 := ast_gem_init_object_#res#1;havoc ast_gem_init_object_~obj#1.base, ast_gem_init_object_~obj#1.offset;havoc ast_gem_init_object_#in~obj#1.base, ast_gem_init_object_#in~obj#1.offset;assume { :end_inline_ast_gem_init_object } true;assume -2147483648 <= main_#t~ret94#1 && main_#t~ret94#1 <= 2147483647;havoc main_#t~ret94#1;~ldv_state_variable_13~0 := 1; [2023-11-19 07:58:03,128 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:58:03,167 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:58:03,167 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:58:03,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:03 BoogieIcfgContainer [2023-11-19 07:58:03,189 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:58:03,192 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:58:03,192 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:58:03,195 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:58:03,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:57:35" (1/3) ... [2023-11-19 07:58:03,198 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d1dd67b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:03, skipping insertion in model container [2023-11-19 07:58:03,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:40" (2/3) ... [2023-11-19 07:58:03,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d1dd67b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:03, skipping insertion in model container [2023-11-19 07:58:03,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:03" (3/3) ... [2023-11-19 07:58:03,202 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i [2023-11-19 07:58:03,223 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:58:03,223 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:58:03,353 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:58:03,360 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;@28001b20, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:58:03,360 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:58:03,377 INFO L276 IsEmpty]: Start isEmpty. Operand has 3162 states, 2392 states have (on average 1.5066889632107023) internal successors, (3604), 2447 states have internal predecessors, (3604), 677 states have call successors, (677), 91 states have call predecessors, (677), 91 states have return successors, (677), 658 states have call predecessors, (677), 677 states have call successors, (677) [2023-11-19 07:58:03,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 07:58:03,390 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:03,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:03,392 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:03,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:03,397 INFO L85 PathProgramCache]: Analyzing trace with hash 2087749331, now seen corresponding path program 1 times [2023-11-19 07:58:03,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:03,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145939537] [2023-11-19 07:58:03,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:03,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:04,609 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 07:58:04,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:04,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145939537] [2023-11-19 07:58:04,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145939537] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:04,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:04,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:58:04,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543271049] [2023-11-19 07:58:04,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:04,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:58:04,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:04,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:58:04,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:58:04,670 INFO L87 Difference]: Start difference. First operand has 3162 states, 2392 states have (on average 1.5066889632107023) internal successors, (3604), 2447 states have internal predecessors, (3604), 677 states have call successors, (677), 91 states have call predecessors, (677), 91 states have return successors, (677), 658 states have call predecessors, (677), 677 states have call successors, (677) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 07:58:05,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:05,437 INFO L93 Difference]: Finished difference Result 9449 states and 14983 transitions. [2023-11-19 07:58:05,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:58:05,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 18 [2023-11-19 07:58:05,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:05,524 INFO L225 Difference]: With dead ends: 9449 [2023-11-19 07:58:05,524 INFO L226 Difference]: Without dead ends: 6284 [2023-11-19 07:58:05,563 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 07:58:05,567 INFO L413 NwaCegarLoop]: 4865 mSDtfsCounter, 4820 mSDsluCounter, 4844 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4820 SdHoareTripleChecker+Valid, 9709 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:05,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4820 Valid, 9709 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:58:05,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6284 states. [2023-11-19 07:58:06,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6284 to 6278. [2023-11-19 07:58:06,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6278 states, 4754 states have (on average 1.4716028607488432) internal successors, (6996), 4850 states have internal predecessors, (6996), 1343 states have call successors, (1343), 181 states have call predecessors, (1343), 180 states have return successors, (1332), 1294 states have call predecessors, (1332), 1332 states have call successors, (1332) [2023-11-19 07:58:06,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6278 states to 6278 states and 9671 transitions. [2023-11-19 07:58:06,244 INFO L78 Accepts]: Start accepts. Automaton has 6278 states and 9671 transitions. Word has length 18 [2023-11-19 07:58:06,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:06,245 INFO L495 AbstractCegarLoop]: Abstraction has 6278 states and 9671 transitions. [2023-11-19 07:58:06,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 07:58:06,245 INFO L276 IsEmpty]: Start isEmpty. Operand 6278 states and 9671 transitions. [2023-11-19 07:58:06,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-19 07:58:06,255 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:06,256 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] [2023-11-19 07:58:06,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:58:06,256 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:06,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:06,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1171092292, now seen corresponding path program 1 times [2023-11-19 07:58:06,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:06,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854949191] [2023-11-19 07:58:06,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:06,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:06,967 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 07:58:06,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:06,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854949191] [2023-11-19 07:58:06,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854949191] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:06,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:06,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:58:06,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345936485] [2023-11-19 07:58:06,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:06,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:58:06,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:06,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:58:06,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:58:06,971 INFO L87 Difference]: Start difference. First operand 6278 states and 9671 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 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) [2023-11-19 07:58:07,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:07,410 INFO L93 Difference]: Finished difference Result 12573 states and 19366 transitions. [2023-11-19 07:58:07,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:58:07,410 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 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 [2023-11-19 07:58:07,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:07,463 INFO L225 Difference]: With dead ends: 12573 [2023-11-19 07:58:07,463 INFO L226 Difference]: Without dead ends: 6298 [2023-11-19 07:58:07,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 07:58:07,498 INFO L413 NwaCegarLoop]: 4854 mSDtfsCounter, 34 mSDsluCounter, 9703 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 14557 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:07,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 14557 Invalid, 21 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:58:07,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6298 states. [2023-11-19 07:58:07,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6298 to 6281. [2023-11-19 07:58:07,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6281 states, 4757 states have (on average 1.471305444607946) internal successors, (6999), 4853 states have internal predecessors, (6999), 1343 states have call successors, (1343), 181 states have call predecessors, (1343), 180 states have return successors, (1332), 1294 states have call predecessors, (1332), 1332 states have call successors, (1332) [2023-11-19 07:58:07,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6281 states to 6281 states and 9674 transitions. [2023-11-19 07:58:07,873 INFO L78 Accepts]: Start accepts. Automaton has 6281 states and 9674 transitions. Word has length 22 [2023-11-19 07:58:07,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:07,874 INFO L495 AbstractCegarLoop]: Abstraction has 6281 states and 9674 transitions. [2023-11-19 07:58:07,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 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) [2023-11-19 07:58:07,874 INFO L276 IsEmpty]: Start isEmpty. Operand 6281 states and 9674 transitions. [2023-11-19 07:58:07,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-19 07:58:07,876 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:07,876 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] [2023-11-19 07:58:07,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:58:07,877 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:07,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:07,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1228350594, now seen corresponding path program 1 times [2023-11-19 07:58:07,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:07,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003765182] [2023-11-19 07:58:07,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:07,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:08,475 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 07:58:08,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:08,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003765182] [2023-11-19 07:58:08,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003765182] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:08,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:08,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:58:08,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018186144] [2023-11-19 07:58:08,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:08,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:58:08,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:08,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:58:08,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:58:08,482 INFO L87 Difference]: Start difference. First operand 6281 states and 9674 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) [2023-11-19 07:58:08,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:08,860 INFO L93 Difference]: Finished difference Result 6283 states and 9675 transitions. [2023-11-19 07:58:08,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:58:08,861 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 [2023-11-19 07:58:08,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:08,919 INFO L225 Difference]: With dead ends: 6283 [2023-11-19 07:58:08,920 INFO L226 Difference]: Without dead ends: 6280 [2023-11-19 07:58:08,929 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 07:58:08,932 INFO L413 NwaCegarLoop]: 4854 mSDtfsCounter, 4836 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4836 SdHoareTripleChecker+Valid, 4854 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:08,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4836 Valid, 4854 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:58:08,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6280 states. [2023-11-19 07:58:09,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6280 to 6280. [2023-11-19 07:58:09,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6280 states, 4757 states have (on average 1.4710952280849274) internal successors, (6998), 4852 states have internal predecessors, (6998), 1342 states have call successors, (1342), 181 states have call predecessors, (1342), 180 states have return successors, (1332), 1294 states have call predecessors, (1332), 1332 states have call successors, (1332) [2023-11-19 07:58:09,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6280 states to 6280 states and 9672 transitions. [2023-11-19 07:58:09,391 INFO L78 Accepts]: Start accepts. Automaton has 6280 states and 9672 transitions. Word has length 22 [2023-11-19 07:58:09,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:09,393 INFO L495 AbstractCegarLoop]: Abstraction has 6280 states and 9672 transitions. [2023-11-19 07:58:09,393 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) [2023-11-19 07:58:09,394 INFO L276 IsEmpty]: Start isEmpty. Operand 6280 states and 9672 transitions. [2023-11-19 07:58:09,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 07:58:09,396 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:09,396 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] [2023-11-19 07:58:09,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:58:09,397 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:09,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:09,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1967646103, now seen corresponding path program 1 times [2023-11-19 07:58:09,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:09,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800907314] [2023-11-19 07:58:09,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:09,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:09,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:09,829 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 07:58:09,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:09,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800907314] [2023-11-19 07:58:09,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800907314] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:09,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:09,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:58:09,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145582540] [2023-11-19 07:58:09,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:09,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:58:09,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:09,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:58:09,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:58:09,832 INFO L87 Difference]: Start difference. First operand 6280 states and 9672 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, (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) [2023-11-19 07:58:10,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:10,456 INFO L93 Difference]: Finished difference Result 18161 states and 28000 transitions. [2023-11-19 07:58:10,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:58:10,457 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, (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 23 [2023-11-19 07:58:10,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:10,553 INFO L225 Difference]: With dead ends: 18161 [2023-11-19 07:58:10,554 INFO L226 Difference]: Without dead ends: 11884 [2023-11-19 07:58:10,595 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 07:58:10,596 INFO L413 NwaCegarLoop]: 5720 mSDtfsCounter, 4339 mSDsluCounter, 4830 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4339 SdHoareTripleChecker+Valid, 10550 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:10,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4339 Valid, 10550 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:58:10,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11884 states. [2023-11-19 07:58:11,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11884 to 11859. [2023-11-19 07:58:11,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11859 states, 8976 states have (on average 1.4757130124777185) internal successors, (13246), 9155 states have internal predecessors, (13246), 2532 states have call successors, (2532), 351 states have call predecessors, (2532), 350 states have return successors, (2522), 2446 states have call predecessors, (2522), 2522 states have call successors, (2522) [2023-11-19 07:58:11,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11859 states to 11859 states and 18300 transitions. [2023-11-19 07:58:11,623 INFO L78 Accepts]: Start accepts. Automaton has 11859 states and 18300 transitions. Word has length 23 [2023-11-19 07:58:11,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:11,623 INFO L495 AbstractCegarLoop]: Abstraction has 11859 states and 18300 transitions. [2023-11-19 07:58:11,624 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, (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) [2023-11-19 07:58:11,624 INFO L276 IsEmpty]: Start isEmpty. Operand 11859 states and 18300 transitions. [2023-11-19 07:58:11,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 07:58:11,626 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:11,626 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] [2023-11-19 07:58:11,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:58:11,627 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:11,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:11,627 INFO L85 PathProgramCache]: Analyzing trace with hash -576949496, now seen corresponding path program 1 times [2023-11-19 07:58:11,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:11,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183993264] [2023-11-19 07:58:11,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:11,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:11,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:12,027 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 07:58:12,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:12,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183993264] [2023-11-19 07:58:12,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183993264] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:12,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:12,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:58:12,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063714606] [2023-11-19 07:58:12,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:12,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:58:12,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:12,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:58:12,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:58:12,032 INFO L87 Difference]: Start difference. First operand 11859 states and 18300 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) [2023-11-19 07:58:12,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:12,595 INFO L93 Difference]: Finished difference Result 11861 states and 18301 transitions. [2023-11-19 07:58:12,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:58:12,596 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 [2023-11-19 07:58:12,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:12,645 INFO L225 Difference]: With dead ends: 11861 [2023-11-19 07:58:12,645 INFO L226 Difference]: Without dead ends: 11858 [2023-11-19 07:58:12,649 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 07:58:12,650 INFO L413 NwaCegarLoop]: 4852 mSDtfsCounter, 4833 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4833 SdHoareTripleChecker+Valid, 4852 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:12,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4833 Valid, 4852 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:58:12,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11858 states. [2023-11-19 07:58:13,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11858 to 11858. [2023-11-19 07:58:13,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11858 states, 8976 states have (on average 1.4756016042780749) internal successors, (13245), 9154 states have internal predecessors, (13245), 2531 states have call successors, (2531), 351 states have call predecessors, (2531), 350 states have return successors, (2522), 2446 states have call predecessors, (2522), 2522 states have call successors, (2522) [2023-11-19 07:58:13,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11858 states to 11858 states and 18298 transitions. [2023-11-19 07:58:13,626 INFO L78 Accepts]: Start accepts. Automaton has 11858 states and 18298 transitions. Word has length 23 [2023-11-19 07:58:13,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:13,627 INFO L495 AbstractCegarLoop]: Abstraction has 11858 states and 18298 transitions. [2023-11-19 07:58:13,627 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) [2023-11-19 07:58:13,627 INFO L276 IsEmpty]: Start isEmpty. Operand 11858 states and 18298 transitions. [2023-11-19 07:58:13,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 07:58:13,631 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:13,631 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] [2023-11-19 07:58:13,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:58:13,632 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:13,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:13,632 INFO L85 PathProgramCache]: Analyzing trace with hash -706672571, now seen corresponding path program 1 times [2023-11-19 07:58:13,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:13,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415270849] [2023-11-19 07:58:13,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:13,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:14,094 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 07:58:14,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:14,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415270849] [2023-11-19 07:58:14,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415270849] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:14,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:14,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:58:14,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562370844] [2023-11-19 07:58:14,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:14,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:58:14,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:14,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:58:14,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:58:14,098 INFO L87 Difference]: Start difference. First operand 11858 states and 18298 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 07:58:14,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:14,662 INFO L93 Difference]: Finished difference Result 11860 states and 18299 transitions. [2023-11-19 07:58:14,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:58:14,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 24 [2023-11-19 07:58:14,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:14,725 INFO L225 Difference]: With dead ends: 11860 [2023-11-19 07:58:14,726 INFO L226 Difference]: Without dead ends: 11857 [2023-11-19 07:58:14,734 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 07:58:14,738 INFO L413 NwaCegarLoop]: 4850 mSDtfsCounter, 4830 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4830 SdHoareTripleChecker+Valid, 4850 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:14,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4830 Valid, 4850 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:58:14,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11857 states. [2023-11-19 07:58:15,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11857 to 11857. [2023-11-19 07:58:15,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11857 states, 8976 states have (on average 1.4754901960784315) internal successors, (13244), 9153 states have internal predecessors, (13244), 2530 states have call successors, (2530), 351 states have call predecessors, (2530), 350 states have return successors, (2522), 2446 states have call predecessors, (2522), 2522 states have call successors, (2522) [2023-11-19 07:58:15,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11857 states to 11857 states and 18296 transitions. [2023-11-19 07:58:15,760 INFO L78 Accepts]: Start accepts. Automaton has 11857 states and 18296 transitions. Word has length 24 [2023-11-19 07:58:15,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:15,761 INFO L495 AbstractCegarLoop]: Abstraction has 11857 states and 18296 transitions. [2023-11-19 07:58:15,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 07:58:15,761 INFO L276 IsEmpty]: Start isEmpty. Operand 11857 states and 18296 transitions. [2023-11-19 07:58:15,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 07:58:15,763 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:15,764 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] [2023-11-19 07:58:15,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:58:15,764 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:15,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:15,765 INFO L85 PathProgramCache]: Analyzing trace with hash -433115733, now seen corresponding path program 1 times [2023-11-19 07:58:15,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:15,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110697342] [2023-11-19 07:58:15,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:15,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:16,125 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 07:58:16,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:16,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110697342] [2023-11-19 07:58:16,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110697342] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:16,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:16,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:58:16,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694031] [2023-11-19 07:58:16,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:16,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:58:16,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:16,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:58:16,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:58:16,129 INFO L87 Difference]: Start difference. First operand 11857 states and 18296 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 07:58:16,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:16,787 INFO L93 Difference]: Finished difference Result 11859 states and 18297 transitions. [2023-11-19 07:58:16,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:58:16,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 25 [2023-11-19 07:58:16,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:16,842 INFO L225 Difference]: With dead ends: 11859 [2023-11-19 07:58:16,842 INFO L226 Difference]: Without dead ends: 11856 [2023-11-19 07:58:16,848 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 07:58:16,851 INFO L413 NwaCegarLoop]: 4848 mSDtfsCounter, 4827 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4827 SdHoareTripleChecker+Valid, 4848 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:16,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4827 Valid, 4848 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:58:16,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11856 states. [2023-11-19 07:58:17,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11856 to 11856. [2023-11-19 07:58:17,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11856 states, 8976 states have (on average 1.4753787878787878) internal successors, (13243), 9152 states have internal predecessors, (13243), 2529 states have call successors, (2529), 351 states have call predecessors, (2529), 350 states have return successors, (2522), 2446 states have call predecessors, (2522), 2522 states have call successors, (2522) [2023-11-19 07:58:17,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11856 states to 11856 states and 18294 transitions. [2023-11-19 07:58:17,873 INFO L78 Accepts]: Start accepts. Automaton has 11856 states and 18294 transitions. Word has length 25 [2023-11-19 07:58:17,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:17,875 INFO L495 AbstractCegarLoop]: Abstraction has 11856 states and 18294 transitions. [2023-11-19 07:58:17,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 07:58:17,875 INFO L276 IsEmpty]: Start isEmpty. Operand 11856 states and 18294 transitions. [2023-11-19 07:58:17,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 07:58:17,879 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:17,882 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] [2023-11-19 07:58:17,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:58:17,883 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:17,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:17,883 INFO L85 PathProgramCache]: Analyzing trace with hash -542783480, now seen corresponding path program 1 times [2023-11-19 07:58:17,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:17,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67313477] [2023-11-19 07:58:17,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:17,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:18,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:18,231 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 07:58:18,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:18,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67313477] [2023-11-19 07:58:18,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67313477] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:18,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:18,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:58:18,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124936261] [2023-11-19 07:58:18,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:18,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:58:18,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:18,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:58:18,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:58:18,234 INFO L87 Difference]: Start difference. First operand 11856 states and 18294 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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)