./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 cf1a7837 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_521844e0-2a6e-4659-b49b-17ac67e2e752/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521844e0-2a6e-4659-b49b-17ac67e2e752/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521844e0-2a6e-4659-b49b-17ac67e2e752/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521844e0-2a6e-4659-b49b-17ac67e2e752/bin/uautomizer-verify-uTZkv6EMXl/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_521844e0-2a6e-4659-b49b-17ac67e2e752/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521844e0-2a6e-4659-b49b-17ac67e2e752/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e37e45521ffb127b83b9baab443e42b7c078cf8a8451cb2a1813ac325e01717d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:14:46,978 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:14:47,095 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521844e0-2a6e-4659-b49b-17ac67e2e752/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-12 02:14:47,100 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:14:47,101 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:14:47,125 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:14:47,126 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:14:47,126 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:14:47,127 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:14:47,128 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:14:47,129 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:14:47,129 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:14:47,130 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:14:47,131 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:14:47,134 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:14:47,135 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:14:47,136 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:14:47,140 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:14:47,141 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:14:47,141 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:14:47,143 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:14:47,144 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:14:47,145 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:14:47,145 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:14:47,146 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:14:47,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:14:47,147 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:14:47,147 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:14:47,148 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:14:47,148 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:14:47,149 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:14:47,150 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:14:47,150 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:14:47,150 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:14:47,151 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:14:47,151 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:14:47,151 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_521844e0-2a6e-4659-b49b-17ac67e2e752/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521844e0-2a6e-4659-b49b-17ac67e2e752/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e37e45521ffb127b83b9baab443e42b7c078cf8a8451cb2a1813ac325e01717d [2023-11-12 02:14:47,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:14:47,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:14:47,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:14:47,502 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:14:47,503 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:14:47,504 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521844e0-2a6e-4659-b49b-17ac67e2e752/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i [2023-11-12 02:14:50,624 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:14:51,365 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:14:51,366 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521844e0-2a6e-4659-b49b-17ac67e2e752/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i [2023-11-12 02:14:51,434 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521844e0-2a6e-4659-b49b-17ac67e2e752/bin/uautomizer-verify-uTZkv6EMXl/data/8e6922d73/914a7379971b4c93b069f31b31d6ed59/FLAGe3f50864a [2023-11-12 02:14:51,449 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521844e0-2a6e-4659-b49b-17ac67e2e752/bin/uautomizer-verify-uTZkv6EMXl/data/8e6922d73/914a7379971b4c93b069f31b31d6ed59 [2023-11-12 02:14:51,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:14:51,453 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:14:51,455 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:14:51,455 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:14:51,460 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:14:51,461 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:14:51" (1/1) ... [2023-11-12 02:14:51,462 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@492cd59c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:51, skipping insertion in model container [2023-11-12 02:14:51,463 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:14:51" (1/1) ... [2023-11-12 02:14:51,626 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:14:55,350 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_521844e0-2a6e-4659-b49b-17ac67e2e752/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i[353005,353018] [2023-11-12 02:14:55,599 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:14:55,665 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:14:55,830 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] [2023-11-12 02:14:55,871 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] [2023-11-12 02:14:55,876 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %0,%1": : "r" (val), "m" (*((unsigned short volatile *)addr)): "memory"); [7041] [2023-11-12 02:14:55,877 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [7048] [2023-11-12 02:14:56,185 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_521844e0-2a6e-4659-b49b-17ac67e2e752/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i[353005,353018] [2023-11-12 02:14:56,212 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:14:56,521 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:14:56,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:56 WrapperNode [2023-11-12 02:14:56,521 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:14:56,522 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:14:56,523 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:14:56,523 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:14:56,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:56" (1/1) ... [2023-11-12 02:14:56,691 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:56" (1/1) ... [2023-11-12 02:14:57,179 INFO L138 Inliner]: procedures = 511, calls = 3880, calls flagged for inlining = 265, calls inlined = 264, statements flattened = 11335 [2023-11-12 02:14:57,179 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:14:57,181 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:14:57,181 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:14:57,181 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:14:57,192 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:56" (1/1) ... [2023-11-12 02:14:57,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:56" (1/1) ... [2023-11-12 02:14:57,345 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:56" (1/1) ... [2023-11-12 02:14:57,345 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:56" (1/1) ... [2023-11-12 02:14:57,554 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:56" (1/1) ... [2023-11-12 02:14:57,590 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:56" (1/1) ... [2023-11-12 02:14:57,649 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:56" (1/1) ... [2023-11-12 02:14:57,793 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:56" (1/1) ... [2023-11-12 02:14:57,867 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:14:57,868 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:14:57,868 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:14:57,868 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:14:57,869 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:56" (1/1) ... [2023-11-12 02:14:57,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:14:57,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521844e0-2a6e-4659-b49b-17ac67e2e752/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:57,902 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521844e0-2a6e-4659-b49b-17ac67e2e752/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:57,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521844e0-2a6e-4659-b49b-17ac67e2e752/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:14:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_ref [2023-11-12 02:14:57,946 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_ref [2023-11-12 02:14:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 02:14:57,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 02:14:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure ast_drm_freeze [2023-11-12 02:14:57,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_drm_freeze [2023-11-12 02:14:57,947 INFO L130 BoogieDeclarations]: Found specification of procedure drm_helper_probe_single_connector_modes [2023-11-12 02:14:57,947 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_helper_probe_single_connector_modes [2023-11-12 02:14:57,947 INFO L130 BoogieDeclarations]: Found specification of procedure drm_err [2023-11-12 02:14:57,947 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_err [2023-11-12 02:14:57,949 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_dpms [2023-11-12 02:14:57,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_dpms [2023-11-12 02:14:57,949 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_pin [2023-11-12 02:14:57,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_pin [2023-11-12 02:14:57,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_struct_mutex_of_drm_device [2023-11-12 02:14:57,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_struct_mutex_of_drm_device [2023-11-12 02:14:57,950 INFO L130 BoogieDeclarations]: Found specification of procedure ast_read32 [2023-11-12 02:14:57,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_read32 [2023-11-12 02:14:57,950 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-12 02:14:57,951 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-12 02:14:57,951 INFO L130 BoogieDeclarations]: Found specification of procedure cbr_dll2 [2023-11-12 02:14:57,951 INFO L138 BoogieDeclarations]: Found implementation of procedure cbr_dll2 [2023-11-12 02:14:57,951 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_mode_fixup [2023-11-12 02:14:57,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_mode_fixup [2023-11-12 02:14:57,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:14:57,952 INFO L130 BoogieDeclarations]: Found specification of procedure moutdwm [2023-11-12 02:14:57,952 INFO L138 BoogieDeclarations]: Found implementation of procedure moutdwm [2023-11-12 02:14:57,952 INFO L130 BoogieDeclarations]: Found specification of procedure ast_drm_thaw [2023-11-12 02:14:57,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_drm_thaw [2023-11-12 02:14:57,953 INFO L130 BoogieDeclarations]: Found specification of procedure ast_dirty_update [2023-11-12 02:14:57,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_dirty_update [2023-11-12 02:14:57,954 INFO L130 BoogieDeclarations]: Found specification of procedure ast_set_index_reg_mask [2023-11-12 02:14:57,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_set_index_reg_mask [2023-11-12 02:14:57,955 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kmap [2023-11-12 02:14:57,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kmap [2023-11-12 02:14:57,955 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_placement [2023-11-12 02:14:57,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_placement [2023-11-12 02:14:57,955 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_load_lut [2023-11-12 02:14:57,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_load_lut [2023-11-12 02:14:57,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 02:14:57,956 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kunmap [2023-11-12 02:14:57,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kunmap [2023-11-12 02:14:57,956 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_unref [2023-11-12 02:14:57,956 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_unref [2023-11-12 02:14:57,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 02:14:57,957 INFO L130 BoogieDeclarations]: Found specification of procedure ast_user_framebuffer_destroy [2023-11-12 02:14:57,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_user_framebuffer_destroy [2023-11-12 02:14:57,957 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_disable [2023-11-12 02:14:57,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_disable [2023-11-12 02:14:57,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:14:57,958 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_mode_set_base [2023-11-12 02:14:57,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_mode_set_base [2023-11-12 02:14:57,958 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2023-11-12 02:14:57,958 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2023-11-12 02:14:57,958 INFO L130 BoogieDeclarations]: Found specification of procedure mindwm [2023-11-12 02:14:57,958 INFO L138 BoogieDeclarations]: Found implementation of procedure mindwm [2023-11-12 02:14:57,958 INFO L130 BoogieDeclarations]: Found specification of procedure ast_io_read8 [2023-11-12 02:14:57,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_io_read8 [2023-11-12 02:14:57,959 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-11-12 02:14:57,959 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-11-12 02:14:57,959 INFO L130 BoogieDeclarations]: Found specification of procedure ast_user_framebuffer_create_handle [2023-11-12 02:14:57,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_user_framebuffer_create_handle [2023-11-12 02:14:57,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:14:57,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:14:57,960 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_gamma_set [2023-11-12 02:14:57,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_gamma_set [2023-11-12 02:14:57,961 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-12 02:14:57,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-12 02:14:57,962 INFO L130 BoogieDeclarations]: Found specification of procedure ast_fbdev_set_suspend [2023-11-12 02:14:57,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_fbdev_set_suspend [2023-11-12 02:14:57,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:14:57,962 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 02:14:57,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 02:14:57,963 INFO L130 BoogieDeclarations]: Found specification of procedure ast_framebuffer_init [2023-11-12 02:14:57,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_framebuffer_init [2023-11-12 02:14:57,964 INFO L130 BoogieDeclarations]: Found specification of procedure ast_cursor_set [2023-11-12 02:14:57,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_cursor_set [2023-11-12 02:14:57,964 INFO L130 BoogieDeclarations]: Found specification of procedure ast_open_key [2023-11-12 02:14:57,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_open_key [2023-11-12 02:14:57,964 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_validate [2023-11-12 02:14:57,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_validate [2023-11-12 02:14:57,965 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_test_burst2 [2023-11-12 02:14:57,965 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_test_burst2 [2023-11-12 02:14:57,965 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_unreserve [2023-11-12 02:14:57,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_unreserve [2023-11-12 02:14:57,965 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-12 02:14:57,965 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-12 02:14:57,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:14:57,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:14:57,966 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2023-11-12 02:14:57,966 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2023-11-12 02:14:57,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 02:14:57,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 02:14:57,967 INFO L130 BoogieDeclarations]: Found specification of procedure ast_connector_detect [2023-11-12 02:14:57,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_connector_detect [2023-11-12 02:14:57,967 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_prepare [2023-11-12 02:14:57,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_prepare [2023-11-12 02:14:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure ast_get_index_reg_mask [2023-11-12 02:14:57,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_get_index_reg_mask [2023-11-12 02:14:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure ast_gem_create [2023-11-12 02:14:57,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_gem_create [2023-11-12 02:14:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_prepare [2023-11-12 02:14:57,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_prepare [2023-11-12 02:14:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-12 02:14:57,969 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-12 02:14:57,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 02:14:57,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 02:14:57,969 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_reserve [2023-11-12 02:14:57,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_reserve [2023-11-12 02:14:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference_unlocked [2023-11-12 02:14:57,970 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference_unlocked [2023-11-12 02:14:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure ast_mmap [2023-11-12 02:14:57,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_mmap [2023-11-12 02:14:57,971 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-12 02:14:57,971 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-12 02:14:57,971 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-11-12 02:14:57,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-11-12 02:14:57,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:14:57,972 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_free [2023-11-12 02:14:57,972 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_release [2023-11-12 02:14:57,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_struct_mutex_of_drm_device [2023-11-12 02:14:57,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_struct_mutex_of_drm_device [2023-11-12 02:14:57,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:14:57,973 INFO L130 BoogieDeclarations]: Found specification of procedure ast_connector_destroy [2023-11-12 02:14:57,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_connector_destroy [2023-11-12 02:14:57,973 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_commit [2023-11-12 02:14:57,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_commit [2023-11-12 02:14:57,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:14:57,974 INFO L130 BoogieDeclarations]: Found specification of procedure drm_ut_debug_printk [2023-11-12 02:14:57,974 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_ut_debug_printk [2023-11-12 02:14:57,974 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 02:14:57,974 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 02:14:57,975 INFO L130 BoogieDeclarations]: Found specification of procedure ast_pm_resume [2023-11-12 02:14:57,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_pm_resume [2023-11-12 02:14:57,975 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-12 02:14:57,975 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-12 02:14:57,975 INFO L130 BoogieDeclarations]: Found specification of procedure ast_io_write8 [2023-11-12 02:14:57,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_io_write8 [2023-11-12 02:14:57,976 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_kmap_obj_virtual [2023-11-12 02:14:57,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_kmap_obj_virtual [2023-11-12 02:14:57,977 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_destroy [2023-11-12 02:14:57,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_destroy [2023-11-12 02:14:57,977 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_gpu_offset [2023-11-12 02:14:57,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_gpu_offset [2023-11-12 02:14:57,978 INFO L130 BoogieDeclarations]: Found specification of procedure ast_write32 [2023-11-12 02:14:57,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_write32 [2023-11-12 02:14:57,978 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_reset [2023-11-12 02:14:57,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_reset [2023-11-12 02:14:57,978 INFO L130 BoogieDeclarations]: Found specification of procedure ast_gem_free_object [2023-11-12 02:14:57,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_gem_free_object [2023-11-12 02:14:57,979 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference_unlocked___0 [2023-11-12 02:14:57,980 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference_unlocked___0 [2023-11-12 02:14:57,982 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_backend_destroy [2023-11-12 02:14:57,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_backend_destroy [2023-11-12 02:14:57,983 INFO L130 BoogieDeclarations]: Found specification of procedure ast_pci_remove [2023-11-12 02:14:57,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_pci_remove [2023-11-12 02:14:57,985 INFO L130 BoogieDeclarations]: Found specification of procedure drm_helper_connector_dpms [2023-11-12 02:14:57,986 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_helper_connector_dpms [2023-11-12 02:14:57,987 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_mode_set [2023-11-12 02:14:57,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_mode_set [2023-11-12 02:14:57,987 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_test_single2 [2023-11-12 02:14:57,992 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_test_single2 [2023-11-12 02:14:57,993 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 02:14:57,993 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 02:14:57,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:14:57,993 INFO L130 BoogieDeclarations]: Found specification of procedure ast_set_index_reg [2023-11-12 02:14:57,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_set_index_reg [2023-11-12 02:14:57,994 INFO L130 BoogieDeclarations]: Found specification of procedure cbrdlli_ast2150 [2023-11-12 02:14:57,994 INFO L138 BoogieDeclarations]: Found implementation of procedure cbrdlli_ast2150 [2023-11-12 02:14:57,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 02:14:57,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 02:14:57,994 INFO L130 BoogieDeclarations]: Found specification of procedure drm_fasync [2023-11-12 02:14:57,994 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_fasync [2023-11-12 02:14:57,994 INFO L130 BoogieDeclarations]: Found specification of procedure drm_framebuffer_cleanup [2023-11-12 02:14:57,995 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_framebuffer_cleanup [2023-11-12 02:14:57,995 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_commit [2023-11-12 02:14:57,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_commit [2023-11-12 02:14:57,995 INFO L130 BoogieDeclarations]: Found specification of procedure drm_crtc_helper_set_config [2023-11-12 02:14:57,995 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_crtc_helper_set_config [2023-11-12 02:14:57,995 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2023-11-12 02:14:57,995 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2023-11-12 02:14:57,996 INFO L130 BoogieDeclarations]: Found specification of procedure ast_cursor_move [2023-11-12 02:14:57,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_cursor_move [2023-11-12 02:14:57,996 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2023-11-12 02:14:57,996 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2023-11-12 02:14:57,996 INFO L130 BoogieDeclarations]: Found specification of procedure drm_poll [2023-11-12 02:14:57,996 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_poll [2023-11-12 02:14:57,996 INFO L130 BoogieDeclarations]: Found specification of procedure drm_mode_connector_update_edid_property [2023-11-12 02:14:57,996 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_mode_connector_update_edid_property [2023-11-12 02:14:57,997 INFO L130 BoogieDeclarations]: Found specification of procedure cbr_scan2 [2023-11-12 02:14:57,997 INFO L138 BoogieDeclarations]: Found implementation of procedure cbr_scan2 [2023-11-12 02:14:57,997 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-12 02:14:57,997 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-12 02:14:57,997 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_tt_unpopulate [2023-11-12 02:14:57,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_tt_unpopulate [2023-11-12 02:14:57,997 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_lookup [2023-11-12 02:14:57,998 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_lookup [2023-11-12 02:14:57,998 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_destroy [2023-11-12 02:14:57,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_destroy [2023-11-12 02:14:57,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:14:59,220 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:14:59,228 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:15:18,978 INFO L770 $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; [2023-11-12 02:15:19,113 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:15:19,147 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:15:19,147 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 02:15:19,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:19 BoogieIcfgContainer [2023-11-12 02:15:19,156 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:15:19,159 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:15:19,160 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:15:19,163 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:15:19,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:14:51" (1/3) ... [2023-11-12 02:15:19,165 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@183eba2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:19, skipping insertion in model container [2023-11-12 02:15:19,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:56" (2/3) ... [2023-11-12 02:15:19,167 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@183eba2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:19, skipping insertion in model container [2023-11-12 02:15:19,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:19" (3/3) ... [2023-11-12 02:15:19,168 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i [2023-11-12 02:15:19,188 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:15:19,189 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:15:19,321 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:15:19,331 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;@3a33a68b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:15:19,332 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:15:19,351 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) [2023-11-12 02:15:19,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 02:15:19,365 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:19,365 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:19,366 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:19,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:19,371 INFO L85 PathProgramCache]: Analyzing trace with hash 2087749331, now seen corresponding path program 1 times [2023-11-12 02:15:19,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:19,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187667645] [2023-11-12 02:15:19,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:19,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:19,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:20,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:15:20,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:20,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187667645] [2023-11-12 02:15:20,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187667645] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:20,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:20,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:15:20,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385169153] [2023-11-12 02:15:20,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:20,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:15:20,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:20,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:15:20,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:15:20,585 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) [2023-11-12 02:15:21,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:21,441 INFO L93 Difference]: Finished difference Result 9449 states and 14983 transitions. [2023-11-12 02:15:21,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:15:21,444 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 [2023-11-12 02:15:21,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:21,525 INFO L225 Difference]: With dead ends: 9449 [2023-11-12 02:15:21,526 INFO L226 Difference]: Without dead ends: 6284 [2023-11-12 02:15:21,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:15:21,569 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 [2023-11-12 02:15:21,570 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] [2023-11-12 02:15:21,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6284 states. [2023-11-12 02:15:22,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6284 to 6278. [2023-11-12 02:15:22,141 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) [2023-11-12 02:15:22,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6278 states to 6278 states and 9671 transitions. [2023-11-12 02:15:22,213 INFO L78 Accepts]: Start accepts. Automaton has 6278 states and 9671 transitions. Word has length 18 [2023-11-12 02:15:22,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:22,214 INFO L495 AbstractCegarLoop]: Abstraction has 6278 states and 9671 transitions. [2023-11-12 02:15:22,214 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) [2023-11-12 02:15:22,214 INFO L276 IsEmpty]: Start isEmpty. Operand 6278 states and 9671 transitions. [2023-11-12 02:15:22,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-12 02:15:22,225 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:22,226 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:22,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:15:22,226 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:22,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:22,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1171092292, now seen corresponding path program 1 times [2023-11-12 02:15:22,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:22,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394796235] [2023-11-12 02:15:22,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:22,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:22,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:23,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:15:23,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:23,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394796235] [2023-11-12 02:15:23,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394796235] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:23,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:23,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:15:23,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300884701] [2023-11-12 02:15:23,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:23,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:15:23,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:23,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:15:23,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:15:23,112 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) [2023-11-12 02:15:23,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:23,588 INFO L93 Difference]: Finished difference Result 12573 states and 19366 transitions. [2023-11-12 02:15:23,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:15:23,589 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 [2023-11-12 02:15:23,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:23,650 INFO L225 Difference]: With dead ends: 12573 [2023-11-12 02:15:23,650 INFO L226 Difference]: Without dead ends: 6298 [2023-11-12 02:15:23,688 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 [2023-11-12 02:15:23,689 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 [2023-11-12 02:15:23,690 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] [2023-11-12 02:15:23,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6298 states. [2023-11-12 02:15:24,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6298 to 6281. [2023-11-12 02:15:24,195 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) [2023-11-12 02:15:24,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6281 states to 6281 states and 9674 transitions. [2023-11-12 02:15:24,257 INFO L78 Accepts]: Start accepts. Automaton has 6281 states and 9674 transitions. Word has length 22 [2023-11-12 02:15:24,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:24,257 INFO L495 AbstractCegarLoop]: Abstraction has 6281 states and 9674 transitions. [2023-11-12 02:15:24,258 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) [2023-11-12 02:15:24,258 INFO L276 IsEmpty]: Start isEmpty. Operand 6281 states and 9674 transitions. [2023-11-12 02:15:24,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-12 02:15:24,262 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:24,262 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:24,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:15:24,262 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:24,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:24,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1228350594, now seen corresponding path program 1 times [2023-11-12 02:15:24,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:24,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470835285] [2023-11-12 02:15:24,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:24,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:24,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:24,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:15:24,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:24,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470835285] [2023-11-12 02:15:24,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470835285] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:24,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:24,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:15:24,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112825658] [2023-11-12 02:15:24,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:24,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:15:24,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:24,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:15:24,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:15:24,923 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) [2023-11-12 02:15:25,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:25,323 INFO L93 Difference]: Finished difference Result 6283 states and 9675 transitions. [2023-11-12 02:15:25,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:15:25,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2023-11-12 02:15:25,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:25,387 INFO L225 Difference]: With dead ends: 6283 [2023-11-12 02:15:25,387 INFO L226 Difference]: Without dead ends: 6280 [2023-11-12 02:15:25,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:15:25,400 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 [2023-11-12 02:15:25,401 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] [2023-11-12 02:15:25,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6280 states. [2023-11-12 02:15:25,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6280 to 6280. [2023-11-12 02:15:25,818 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) [2023-11-12 02:15:25,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6280 states to 6280 states and 9672 transitions. [2023-11-12 02:15:25,871 INFO L78 Accepts]: Start accepts. Automaton has 6280 states and 9672 transitions. Word has length 22 [2023-11-12 02:15:25,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:25,872 INFO L495 AbstractCegarLoop]: Abstraction has 6280 states and 9672 transitions. [2023-11-12 02:15:25,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:25,872 INFO L276 IsEmpty]: Start isEmpty. Operand 6280 states and 9672 transitions. [2023-11-12 02:15:25,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-12 02:15:25,874 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:25,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:25,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:15:25,875 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:25,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:25,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1967646103, now seen corresponding path program 1 times [2023-11-12 02:15:25,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:25,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559015802] [2023-11-12 02:15:25,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:25,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:26,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:15:26,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:26,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559015802] [2023-11-12 02:15:26,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559015802] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:26,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:26,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:15:26,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333455872] [2023-11-12 02:15:26,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:26,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:15:26,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:26,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:15:26,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:15:26,364 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) [2023-11-12 02:15:27,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:27,137 INFO L93 Difference]: Finished difference Result 18161 states and 28000 transitions. [2023-11-12 02:15:27,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:15:27,137 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 [2023-11-12 02:15:27,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:27,244 INFO L225 Difference]: With dead ends: 18161 [2023-11-12 02:15:27,244 INFO L226 Difference]: Without dead ends: 11884 [2023-11-12 02:15:27,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:15:27,292 INFO L413 NwaCegarLoop]: 5720 mSDtfsCounter, 4339 mSDsluCounter, 4830 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:27,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4339 Valid, 10550 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:15:27,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11884 states. [2023-11-12 02:15:28,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11884 to 11859. [2023-11-12 02:15:28,280 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) [2023-11-12 02:15:28,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11859 states to 11859 states and 18300 transitions. [2023-11-12 02:15:28,356 INFO L78 Accepts]: Start accepts. Automaton has 11859 states and 18300 transitions. Word has length 23 [2023-11-12 02:15:28,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:28,357 INFO L495 AbstractCegarLoop]: Abstraction has 11859 states and 18300 transitions. [2023-11-12 02:15:28,357 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) [2023-11-12 02:15:28,357 INFO L276 IsEmpty]: Start isEmpty. Operand 11859 states and 18300 transitions. [2023-11-12 02:15:28,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-12 02:15:28,359 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:28,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:28,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:15:28,360 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:28,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:28,361 INFO L85 PathProgramCache]: Analyzing trace with hash -576949496, now seen corresponding path program 1 times [2023-11-12 02:15:28,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:28,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914899021] [2023-11-12 02:15:28,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:28,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:28,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:15:28,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:28,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914899021] [2023-11-12 02:15:28,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914899021] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:28,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:28,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:15:28,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940741482] [2023-11-12 02:15:28,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:28,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:15:28,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:28,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:15:28,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:15:28,798 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) [2023-11-12 02:15:29,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:29,326 INFO L93 Difference]: Finished difference Result 11861 states and 18301 transitions. [2023-11-12 02:15:29,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:15:29,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2023-11-12 02:15:29,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:29,395 INFO L225 Difference]: With dead ends: 11861 [2023-11-12 02:15:29,395 INFO L226 Difference]: Without dead ends: 11858 [2023-11-12 02:15:29,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:15:29,408 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 [2023-11-12 02:15:29,409 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] [2023-11-12 02:15:29,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11858 states. [2023-11-12 02:15:30,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11858 to 11858. [2023-11-12 02:15:30,397 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) [2023-11-12 02:15:30,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11858 states to 11858 states and 18298 transitions. [2023-11-12 02:15:30,469 INFO L78 Accepts]: Start accepts. Automaton has 11858 states and 18298 transitions. Word has length 23 [2023-11-12 02:15:30,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:30,469 INFO L495 AbstractCegarLoop]: Abstraction has 11858 states and 18298 transitions. [2023-11-12 02:15:30,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:30,470 INFO L276 IsEmpty]: Start isEmpty. Operand 11858 states and 18298 transitions. [2023-11-12 02:15:30,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-12 02:15:30,473 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:30,473 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] [2023-11-12 02:15:30,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:15:30,473 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:30,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:30,474 INFO L85 PathProgramCache]: Analyzing trace with hash -706672571, now seen corresponding path program 1 times [2023-11-12 02:15:30,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:30,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580590367] [2023-11-12 02:15:30,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:30,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:30,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:31,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:15:31,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:31,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580590367] [2023-11-12 02:15:31,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580590367] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:31,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:31,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:15:31,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761463251] [2023-11-12 02:15:31,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:31,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:15:31,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:31,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:15:31,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:15:31,025 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) [2023-11-12 02:15:31,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:31,762 INFO L93 Difference]: Finished difference Result 11860 states and 18299 transitions. [2023-11-12 02:15:31,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:15:31,763 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 [2023-11-12 02:15:31,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:31,838 INFO L225 Difference]: With dead ends: 11860 [2023-11-12 02:15:31,838 INFO L226 Difference]: Without dead ends: 11857 [2023-11-12 02:15:31,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:15:31,851 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 [2023-11-12 02:15:31,851 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] [2023-11-12 02:15:31,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11857 states. [2023-11-12 02:15:32,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11857 to 11857. [2023-11-12 02:15:32,956 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) [2023-11-12 02:15:33,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11857 states to 11857 states and 18296 transitions. [2023-11-12 02:15:33,024 INFO L78 Accepts]: Start accepts. Automaton has 11857 states and 18296 transitions. Word has length 24 [2023-11-12 02:15:33,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:33,024 INFO L495 AbstractCegarLoop]: Abstraction has 11857 states and 18296 transitions. [2023-11-12 02:15:33,025 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) [2023-11-12 02:15:33,025 INFO L276 IsEmpty]: Start isEmpty. Operand 11857 states and 18296 transitions. [2023-11-12 02:15:33,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-12 02:15:33,027 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:33,027 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] [2023-11-12 02:15:33,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:15:33,028 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:33,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:33,028 INFO L85 PathProgramCache]: Analyzing trace with hash -433115733, now seen corresponding path program 1 times [2023-11-12 02:15:33,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:33,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289595123] [2023-11-12 02:15:33,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:33,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:33,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:33,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:15:33,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:33,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289595123] [2023-11-12 02:15:33,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289595123] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:33,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:33,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:15:33,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123774312] [2023-11-12 02:15:33,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:33,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:15:33,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:33,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:15:33,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:15:33,425 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) [2023-11-12 02:15:34,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:34,043 INFO L93 Difference]: Finished difference Result 11859 states and 18297 transitions. [2023-11-12 02:15:34,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:15:34,044 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 [2023-11-12 02:15:34,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:34,108 INFO L225 Difference]: With dead ends: 11859 [2023-11-12 02:15:34,108 INFO L226 Difference]: Without dead ends: 11856 [2023-11-12 02:15:34,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:15:34,119 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 [2023-11-12 02:15:34,119 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] [2023-11-12 02:15:34,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11856 states.