./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2d587e-39ee-4e78-8fd9-68269fc90b80/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2d587e-39ee-4e78-8fd9-68269fc90b80/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_fc2d587e-39ee-4e78-8fd9-68269fc90b80/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2d587e-39ee-4e78-8fd9-68269fc90b80/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2d587e-39ee-4e78-8fd9-68269fc90b80/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_fc2d587e-39ee-4e78-8fd9-68269fc90b80/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 71101d2b79b59e25da9ba6ac44f6028cc3034769032ea6dc2bebcfbbe6cd49e1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:23:17,175 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:23:17,323 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2d587e-39ee-4e78-8fd9-68269fc90b80/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-12 02:23:17,329 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:23:17,329 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:23:17,371 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:23:17,372 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:23:17,372 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:23:17,374 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:23:17,379 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:23:17,380 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:23:17,381 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:23:17,381 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:23:17,383 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:23:17,384 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:23:17,384 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:23:17,385 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:23:17,385 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:23:17,386 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:23:17,386 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:23:17,387 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:23:17,387 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:23:17,390 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:23:17,390 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:23:17,391 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:23:17,391 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:23:17,392 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:23:17,392 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:23:17,393 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:23:17,393 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:23:17,394 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:23:17,395 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:23:17,395 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:23:17,395 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:23:17,396 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:23:17,396 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:23:17,396 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_fc2d587e-39ee-4e78-8fd9-68269fc90b80/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2d587e-39ee-4e78-8fd9-68269fc90b80/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71101d2b79b59e25da9ba6ac44f6028cc3034769032ea6dc2bebcfbbe6cd49e1 [2023-11-12 02:23:17,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:23:17,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:23:17,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:23:17,765 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:23:17,766 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:23:17,767 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2d587e-39ee-4e78-8fd9-68269fc90b80/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i [2023-11-12 02:23:20,768 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:23:21,452 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:23:21,453 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2d587e-39ee-4e78-8fd9-68269fc90b80/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i [2023-11-12 02:23:21,502 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2d587e-39ee-4e78-8fd9-68269fc90b80/bin/uautomizer-verify-uTZkv6EMXl/data/c37d5386e/c74ec138116844d4a3165d235a729692/FLAG8917a5991 [2023-11-12 02:23:21,521 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2d587e-39ee-4e78-8fd9-68269fc90b80/bin/uautomizer-verify-uTZkv6EMXl/data/c37d5386e/c74ec138116844d4a3165d235a729692 [2023-11-12 02:23:21,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:23:21,528 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:23:21,531 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:23:21,532 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:23:21,538 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:23:21,539 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:23:21" (1/1) ... [2023-11-12 02:23:21,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dc54e19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:21, skipping insertion in model container [2023-11-12 02:23:21,540 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:23:21" (1/1) ... [2023-11-12 02:23:21,688 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:23:22,514 WARN L635 FunctionHandler]: implicit declaration of function ldv_assume [2023-11-12 02:23:22,704 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_fc2d587e-39ee-4e78-8fd9-68269fc90b80/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i[161338,161351] [2023-11-12 02:23:23,181 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:23:23,209 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:23:23,402 WARN L635 FunctionHandler]: implicit declaration of function ldv_assume [2023-11-12 02:23:23,418 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_fc2d587e-39ee-4e78-8fd9-68269fc90b80/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i[161338,161351] [2023-11-12 02:23:23,524 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/mutilin/launch/work/current--X--drivers/net/--X--defaultlinux-3.16-rc1.tar.xz--X--205_9a--X--cpachecker/linux-3.16-rc1.tar.xz/csd_deg_dscv/998/dscv_tempdir/dscv/ri/205_9a/drivers/net/phy/dp83640.o.c.prepared"), "i" (952), "i" (12UL)); [6658-6659] [2023-11-12 02:23:23,619 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:23:23,686 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:23:23,687 WARN L672 CHandler]: The function ldv_assume is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:23:23,687 WARN L672 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:23:23,696 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:23:23,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:23 WrapperNode [2023-11-12 02:23:23,697 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:23:23,699 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:23:23,699 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:23:23,699 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:23:23,709 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:23" (1/1) ... [2023-11-12 02:23:23,816 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:23" (1/1) ... [2023-11-12 02:23:24,040 INFO L138 Inliner]: procedures = 185, calls = 866, calls flagged for inlining = 75, calls inlined = 64, statements flattened = 2341 [2023-11-12 02:23:24,041 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:23:24,042 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:23:24,042 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:23:24,042 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:23:24,055 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:23" (1/1) ... [2023-11-12 02:23:24,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:23" (1/1) ... [2023-11-12 02:23:24,107 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:23" (1/1) ... [2023-11-12 02:23:24,108 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:23" (1/1) ... [2023-11-12 02:23:24,247 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:23" (1/1) ... [2023-11-12 02:23:24,278 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:23" (1/1) ... [2023-11-12 02:23:24,314 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:23" (1/1) ... [2023-11-12 02:23:24,334 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:23" (1/1) ... [2023-11-12 02:23:24,374 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:23:24,377 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:23:24,377 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:23:24,377 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:23:24,378 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:23" (1/1) ... [2023-11-12 02:23:24,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:23:24,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2d587e-39ee-4e78-8fd9-68269fc90b80/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:23:24,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2d587e-39ee-4e78-8fd9-68269fc90b80/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:23:24,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc2d587e-39ee-4e78-8fd9-68269fc90b80/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:23:24,465 INFO L130 BoogieDeclarations]: Found specification of procedure broadcast_write [2023-11-12 02:23:24,466 INFO L138 BoogieDeclarations]: Found implementation of procedure broadcast_write [2023-11-12 02:23:24,466 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-12 02:23:24,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-12 02:23:24,466 INFO L130 BoogieDeclarations]: Found specification of procedure genphy_config_aneg [2023-11-12 02:23:24,466 INFO L138 BoogieDeclarations]: Found implementation of procedure genphy_config_aneg [2023-11-12 02:23:24,466 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-12 02:23:24,466 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-12 02:23:24,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-12 02:23:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_clock_put [2023-11-12 02:23:24,469 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_clock_put [2023-11-12 02:23:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 02:23:24,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 02:23:24,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:23:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2023-11-12 02:23:24,470 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2023-11-12 02:23:24,470 INFO L130 BoogieDeclarations]: Found specification of procedure phy2txts [2023-11-12 02:23:24,470 INFO L138 BoogieDeclarations]: Found implementation of procedure phy2txts [2023-11-12 02:23:24,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2023-11-12 02:23:24,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2023-11-12 02:23:24,471 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_ts_info [2023-11-12 02:23:24,471 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_ts_info [2023-11-12 02:23:24,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 02:23:24,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 02:23:24,472 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2023-11-12 02:23:24,472 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2023-11-12 02:23:24,473 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_write [2023-11-12 02:23:24,473 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_write [2023-11-12 02:23:24,473 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_config_intr [2023-11-12 02:23:24,473 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_config_intr [2023-11-12 02:23:24,473 INFO L130 BoogieDeclarations]: Found specification of procedure tdr_write [2023-11-12 02:23:24,474 INFO L138 BoogieDeclarations]: Found implementation of procedure tdr_write [2023-11-12 02:23:24,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2023-11-12 02:23:24,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2023-11-12 02:23:24,474 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 02:23:24,475 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 02:23:24,475 INFO L130 BoogieDeclarations]: Found specification of procedure exts_chan_to_edata [2023-11-12 02:23:24,475 INFO L138 BoogieDeclarations]: Found implementation of procedure exts_chan_to_edata [2023-11-12 02:23:24,475 INFO L130 BoogieDeclarations]: Found specification of procedure skb_complete_tx_timestamp [2023-11-12 02:23:24,476 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_complete_tx_timestamp [2023-11-12 02:23:24,476 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2023-11-12 02:23:24,476 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2023-11-12 02:23:24,476 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-12 02:23:24,477 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-12 02:23:24,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:23:24,477 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-12 02:23:24,477 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-12 02:23:24,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 02:23:24,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 02:23:24,478 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_rxtstamp [2023-11-12 02:23:24,478 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_rxtstamp [2023-11-12 02:23:24,478 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-12 02:23:24,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-12 02:23:24,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 02:23:24,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 02:23:24,479 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read [2023-11-12 02:23:24,479 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read [2023-11-12 02:23:24,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 02:23:24,480 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 02:23:24,480 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:23:24,480 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:23:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:23:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure prune_rx_ts [2023-11-12 02:23:24,481 INFO L138 BoogieDeclarations]: Found implementation of procedure prune_rx_ts [2023-11-12 02:23:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-12 02:23:24,481 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-12 02:23:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-11-12 02:23:24,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-11-12 02:23:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:23:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_config_init [2023-11-12 02:23:24,483 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_config_init [2023-11-12 02:23:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:23:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:23:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-12 02:23:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-12 02:23:24,484 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-12 02:23:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-12 02:23:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_ktime [2023-11-12 02:23:24,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_ktime [2023-11-12 02:23:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-11-12 02:23:24,485 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-11-12 02:23:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:23:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2023-11-12 02:23:24,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2023-11-12 02:23:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-11-12 02:23:24,486 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-11-12 02:23:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 02:23:24,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 02:23:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-12 02:23:24,487 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-12 02:23:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure enable_status_frames [2023-11-12 02:23:24,488 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_status_frames [2023-11-12 02:23:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_hwtstamp [2023-11-12 02:23:24,488 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_hwtstamp [2023-11-12 02:23:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-11-12 02:23:24,489 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-11-12 02:23:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write [2023-11-12 02:23:24,489 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write [2023-11-12 02:23:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-11-12 02:23:24,490 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-11-12 02:23:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:23:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:23:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2023-11-12 02:23:24,490 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2023-11-12 02:23:24,491 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-12 02:23:24,491 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-12 02:23:24,491 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 02:23:24,491 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 02:23:24,492 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_clock_get [2023-11-12 02:23:24,492 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_clock_get [2023-11-12 02:23:24,492 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_ack_interrupt [2023-11-12 02:23:24,492 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_ack_interrupt [2023-11-12 02:23:24,492 INFO L130 BoogieDeclarations]: Found specification of procedure ext_read [2023-11-12 02:23:24,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ext_read [2023-11-12 02:23:24,493 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-12 02:23:24,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-12 02:23:24,493 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-12 02:23:24,493 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-12 02:23:24,494 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-12 02:23:24,494 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-12 02:23:24,494 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-12 02:23:24,494 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-12 02:23:24,495 INFO L130 BoogieDeclarations]: Found specification of procedure skb_mac_header [2023-11-12 02:23:24,495 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_mac_header [2023-11-12 02:23:24,495 INFO L130 BoogieDeclarations]: Found specification of procedure dp83640_txtstamp [2023-11-12 02:23:24,495 INFO L138 BoogieDeclarations]: Found implementation of procedure dp83640_txtstamp [2023-11-12 02:23:24,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:23:24,496 INFO L130 BoogieDeclarations]: Found specification of procedure enable_broadcast [2023-11-12 02:23:24,496 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_broadcast [2023-11-12 02:23:24,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-12 02:23:24,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-12 02:23:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-12 02:23:24,497 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-12 02:23:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:23:24,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:23:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_timespec [2023-11-12 02:23:24,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_timespec [2023-11-12 02:23:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure ext_write [2023-11-12 02:23:24,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ext_write [2023-11-12 02:23:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-12 02:23:24,499 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-12 02:23:25,016 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:23:25,021 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:23:25,743 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 02:23:28,023 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:23:28,050 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:23:28,050 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 02:23:28,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:23:28 BoogieIcfgContainer [2023-11-12 02:23:28,056 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:23:28,061 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:23:28,064 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:23:28,069 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:23:28,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:23:21" (1/3) ... [2023-11-12 02:23:28,070 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ee017a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:23:28, skipping insertion in model container [2023-11-12 02:23:28,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:23" (2/3) ... [2023-11-12 02:23:28,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ee017a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:23:28, skipping insertion in model container [2023-11-12 02:23:28,075 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:23:28" (3/3) ... [2023-11-12 02:23:28,076 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--phy--dp83640.ko-entry_point.cil.out.i [2023-11-12 02:23:28,100 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:23:28,106 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:23:28,225 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:23:28,239 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;@6d70ece6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:23:28,239 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:23:28,253 INFO L276 IsEmpty]: Start isEmpty. Operand has 937 states, 667 states have (on average 1.3508245877061469) internal successors, (901), 684 states have internal predecessors, (901), 206 states have call successors, (206), 63 states have call predecessors, (206), 62 states have return successors, (203), 202 states have call predecessors, (203), 203 states have call successors, (203) [2023-11-12 02:23:28,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-12 02:23:28,287 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:23:28,289 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:23:28,289 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:23:28,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:28,301 INFO L85 PathProgramCache]: Analyzing trace with hash -2123846660, now seen corresponding path program 1 times [2023-11-12 02:23:28,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:23:28,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455958068] [2023-11-12 02:23:28,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:28,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:23:28,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:29,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:23:29,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:29,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:23:29,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:29,115 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 02:23:29,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:23:29,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455958068] [2023-11-12 02:23:29,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455958068] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:23:29,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:23:29,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:23:29,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497814987] [2023-11-12 02:23:29,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:23:29,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:23:29,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:23:29,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:23:29,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:23:29,171 INFO L87 Difference]: Start difference. First operand has 937 states, 667 states have (on average 1.3508245877061469) internal successors, (901), 684 states have internal predecessors, (901), 206 states have call successors, (206), 63 states have call predecessors, (206), 62 states have return successors, (203), 202 states have call predecessors, (203), 203 states have call successors, (203) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 02:23:34,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:23:34,787 INFO L93 Difference]: Finished difference Result 2981 states and 4369 transitions. [2023-11-12 02:23:34,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:23:34,790 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2023-11-12 02:23:34,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:23:34,836 INFO L225 Difference]: With dead ends: 2981 [2023-11-12 02:23:34,836 INFO L226 Difference]: Without dead ends: 1999 [2023-11-12 02:23:34,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:23:34,856 INFO L413 NwaCegarLoop]: 924 mSDtfsCounter, 1862 mSDsluCounter, 2888 mSDsCounter, 0 mSdLazyCounter, 2311 mSolverCounterSat, 571 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2033 SdHoareTripleChecker+Valid, 3812 SdHoareTripleChecker+Invalid, 2882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 571 IncrementalHoareTripleChecker+Valid, 2311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:23:34,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2033 Valid, 3812 Invalid, 2882 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [571 Valid, 2311 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-11-12 02:23:34,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2023-11-12 02:23:35,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1819. [2023-11-12 02:23:35,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1819 states, 1301 states have (on average 1.3189853958493467) internal successors, (1716), 1326 states have internal predecessors, (1716), 394 states have call successors, (394), 122 states have call predecessors, (394), 123 states have return successors, (407), 392 states have call predecessors, (407), 393 states have call successors, (407) [2023-11-12 02:23:35,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1819 states to 1819 states and 2517 transitions. [2023-11-12 02:23:35,224 INFO L78 Accepts]: Start accepts. Automaton has 1819 states and 2517 transitions. Word has length 32 [2023-11-12 02:23:35,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:23:35,227 INFO L495 AbstractCegarLoop]: Abstraction has 1819 states and 2517 transitions. [2023-11-12 02:23:35,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 02:23:35,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1819 states and 2517 transitions. [2023-11-12 02:23:35,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-12 02:23:35,245 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:23:35,245 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:23:35,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:23:35,246 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:23:35,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:35,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1609537768, now seen corresponding path program 1 times [2023-11-12 02:23:35,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:23:35,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803405994] [2023-11-12 02:23:35,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:35,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:23:35,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:35,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:23:35,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:35,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:23:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:35,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-12 02:23:35,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:35,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:23:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:35,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-12 02:23:35,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:35,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:23:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:35,557 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 02:23:35,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:23:35,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803405994] [2023-11-12 02:23:35,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803405994] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:23:35,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:23:35,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:23:35,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128412141] [2023-11-12 02:23:35,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:23:35,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:23:35,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:23:35,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:23:35,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:23:35,566 INFO L87 Difference]: Start difference. First operand 1819 states and 2517 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-12 02:23:40,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:23:42,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:23:44,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:23:44,602 INFO L93 Difference]: Finished difference Result 4097 states and 5826 transitions. [2023-11-12 02:23:44,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:23:44,603 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 77 [2023-11-12 02:23:44,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:23:44,623 INFO L225 Difference]: With dead ends: 4097 [2023-11-12 02:23:44,624 INFO L226 Difference]: Without dead ends: 2286 [2023-11-12 02:23:44,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:23:44,634 INFO L413 NwaCegarLoop]: 782 mSDtfsCounter, 903 mSDsluCounter, 1322 mSDsCounter, 0 mSdLazyCounter, 2228 mSolverCounterSat, 549 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 2104 SdHoareTripleChecker+Invalid, 2779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 549 IncrementalHoareTripleChecker+Valid, 2228 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2023-11-12 02:23:44,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 2104 Invalid, 2779 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [549 Valid, 2228 Invalid, 2 Unknown, 0 Unchecked, 8.6s Time] [2023-11-12 02:23:44,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2286 states. [2023-11-12 02:23:44,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2286 to 1923. [2023-11-12 02:23:44,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1923 states, 1381 states have (on average 1.3178855901520636) internal successors, (1820), 1409 states have internal predecessors, (1820), 406 states have call successors, (406), 131 states have call predecessors, (406), 135 states have return successors, (425), 404 states have call predecessors, (425), 405 states have call successors, (425) [2023-11-12 02:23:44,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1923 states to 1923 states and 2651 transitions. [2023-11-12 02:23:44,782 INFO L78 Accepts]: Start accepts. Automaton has 1923 states and 2651 transitions. Word has length 77 [2023-11-12 02:23:44,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:23:44,782 INFO L495 AbstractCegarLoop]: Abstraction has 1923 states and 2651 transitions. [2023-11-12 02:23:44,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-12 02:23:44,783 INFO L276 IsEmpty]: Start isEmpty. Operand 1923 states and 2651 transitions. [2023-11-12 02:23:44,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-12 02:23:44,790 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:23:44,791 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:23:44,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:23:44,791 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:23:44,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:44,792 INFO L85 PathProgramCache]: Analyzing trace with hash 854031937, now seen corresponding path program 1 times [2023-11-12 02:23:44,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:23:44,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160916078] [2023-11-12 02:23:44,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:44,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:23:44,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:44,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:23:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:44,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:23:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:44,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-12 02:23:44,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:44,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:23:44,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:45,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-12 02:23:45,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:45,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:23:45,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:45,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-12 02:23:45,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:45,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:23:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:45,089 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-12 02:23:45,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:23:45,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160916078] [2023-11-12 02:23:45,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160916078] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:23:45,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:23:45,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:23:45,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069329204] [2023-11-12 02:23:45,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:23:45,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:23:45,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:23:45,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:23:45,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:23:45,093 INFO L87 Difference]: Start difference. First operand 1923 states and 2651 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-12 02:23:52,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:23:52,480 INFO L93 Difference]: Finished difference Result 5971 states and 8521 transitions. [2023-11-12 02:23:52,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:23:52,481 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 101 [2023-11-12 02:23:52,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:23:52,512 INFO L225 Difference]: With dead ends: 5971 [2023-11-12 02:23:52,512 INFO L226 Difference]: Without dead ends: 4077 [2023-11-12 02:23:52,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:23:52,530 INFO L413 NwaCegarLoop]: 779 mSDtfsCounter, 2564 mSDsluCounter, 1240 mSDsCounter, 0 mSdLazyCounter, 2538 mSolverCounterSat, 1142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2742 SdHoareTripleChecker+Valid, 2019 SdHoareTripleChecker+Invalid, 3680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1142 IncrementalHoareTripleChecker+Valid, 2538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2023-11-12 02:23:52,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2742 Valid, 2019 Invalid, 3680 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1142 Valid, 2538 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2023-11-12 02:23:52,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4077 states. [2023-11-12 02:23:52,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4077 to 3376. [2023-11-12 02:23:52,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3376 states, 2448 states have (on average 1.3112745098039216) internal successors, (3210), 2490 states have internal predecessors, (3210), 676 states have call successors, (676), 242 states have call predecessors, (676), 251 states have return successors, (703), 673 states have call predecessors, (703), 675 states have call successors, (703) [2023-11-12 02:23:52,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3376 states to 3376 states and 4589 transitions. [2023-11-12 02:23:52,860 INFO L78 Accepts]: Start accepts. Automaton has 3376 states and 4589 transitions. Word has length 101 [2023-11-12 02:23:52,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:23:52,862 INFO L495 AbstractCegarLoop]: Abstraction has 3376 states and 4589 transitions. [2023-11-12 02:23:52,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-12 02:23:52,863 INFO L276 IsEmpty]: Start isEmpty. Operand 3376 states and 4589 transitions. [2023-11-12 02:23:52,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-12 02:23:52,872 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:23:52,872 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:23:52,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:23:52,872 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:23:52,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:52,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1688147359, now seen corresponding path program 1 times [2023-11-12 02:23:52,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:23:52,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452353552] [2023-11-12 02:23:52,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:52,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:23:52,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:53,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:23:53,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:53,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:23:53,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:53,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-12 02:23:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:53,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:23:53,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:53,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-12 02:23:53,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:53,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:23:53,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:53,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-12 02:23:53,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:53,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:23:53,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:53,202 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-12 02:23:53,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:23:53,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452353552] [2023-11-12 02:23:53,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452353552] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:23:53,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:23:53,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:23:53,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670067083] [2023-11-12 02:23:53,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:23:53,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:23:53,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:23:53,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:23:53,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:23:53,206 INFO L87 Difference]: Start difference. First operand 3376 states and 4589 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-12 02:23:57,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:23:59,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:23:59,829 INFO L93 Difference]: Finished difference Result 5819 states and 8254 transitions. [2023-11-12 02:23:59,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:23:59,830 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 101 [2023-11-12 02:23:59,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:23:59,861 INFO L225 Difference]: With dead ends: 5819 [2023-11-12 02:23:59,861 INFO L226 Difference]: Without dead ends: 4072 [2023-11-12 02:23:59,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:23:59,870 INFO L413 NwaCegarLoop]: 728 mSDtfsCounter, 477 mSDsluCounter, 1623 mSDsCounter, 0 mSdLazyCounter, 2652 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 2351 SdHoareTripleChecker+Invalid, 2905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 2652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:23:59,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 2351 Invalid, 2905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 2652 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-11-12 02:23:59,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4072 states. [2023-11-12 02:24:00,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4072 to 3380. [2023-11-12 02:24:00,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3380 states, 2452 states have (on average 1.3107667210440457) internal successors, (3214), 2494 states have internal predecessors, (3214), 676 states have call successors, (676), 242 states have call predecessors, (676), 251 states have return successors, (703), 673 states have call predecessors, (703), 675 states have call successors, (703) [2023-11-12 02:24:00,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3380 states to 3380 states and 4593 transitions. [2023-11-12 02:24:00,187 INFO L78 Accepts]: Start accepts. Automaton has 3380 states and 4593 transitions. Word has length 101 [2023-11-12 02:24:00,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:24:00,188 INFO L495 AbstractCegarLoop]: Abstraction has 3380 states and 4593 transitions. [2023-11-12 02:24:00,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-12 02:24:00,189 INFO L276 IsEmpty]: Start isEmpty. Operand 3380 states and 4593 transitions. [2023-11-12 02:24:00,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-12 02:24:00,196 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:24:00,196 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:00,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:24:00,197 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:24:00,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:00,197 INFO L85 PathProgramCache]: Analyzing trace with hash -2116324384, now seen corresponding path program 1 times [2023-11-12 02:24:00,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:00,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277573457] [2023-11-12 02:24:00,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:00,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:00,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:00,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:24:00,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:00,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:24:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:00,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-12 02:24:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:00,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:24:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:00,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-12 02:24:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:00,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:24:00,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:00,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-12 02:24:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:01,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:24:01,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:01,139 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-12 02:24:01,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:01,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277573457] [2023-11-12 02:24:01,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277573457] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:01,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:01,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-12 02:24:01,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382304008] [2023-11-12 02:24:01,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:01,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:24:01,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:01,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:24:01,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:24:01,143 INFO L87 Difference]: Start difference. First operand 3380 states and 4593 transitions. Second operand has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 6 states have call predecessors, (8), 3 states have call successors, (8)