./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ed7c80-6852-4927-8bce-e6427865eed8/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ed7c80-6852-4927-8bce-e6427865eed8/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_52ed7c80-6852-4927-8bce-e6427865eed8/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ed7c80-6852-4927-8bce-e6427865eed8/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ed7c80-6852-4927-8bce-e6427865eed8/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_52ed7c80-6852-4927-8bce-e6427865eed8/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 4d59f12bf134f1df229541fa7d7be9025273d18d299c01e889ca23a568445b7a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:33:05,706 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:33:05,828 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ed7c80-6852-4927-8bce-e6427865eed8/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-12 02:33:05,833 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:33:05,833 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:33:05,862 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:33:05,863 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:33:05,863 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:33:05,864 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:33:05,865 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:33:05,866 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:33:05,867 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:33:05,868 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:33:05,869 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:33:05,869 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:33:05,870 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:33:05,871 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:33:05,872 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:33:05,872 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:33:05,873 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:33:05,874 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:33:05,875 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:33:05,876 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:33:05,876 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:33:05,877 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:33:05,878 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:33:05,879 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:33:05,879 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:33:05,880 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:33:05,881 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:33:05,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:33:05,882 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:33:05,898 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:33:05,899 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:33:05,900 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:33:05,900 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:33:05,901 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_52ed7c80-6852-4927-8bce-e6427865eed8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ed7c80-6852-4927-8bce-e6427865eed8/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d59f12bf134f1df229541fa7d7be9025273d18d299c01e889ca23a568445b7a [2023-11-12 02:33:06,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:33:06,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:33:06,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:33:06,169 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:33:06,170 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:33:06,172 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ed7c80-6852-4927-8bce-e6427865eed8/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i [2023-11-12 02:33:09,470 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:33:10,117 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:33:10,119 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ed7c80-6852-4927-8bce-e6427865eed8/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i [2023-11-12 02:33:10,165 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ed7c80-6852-4927-8bce-e6427865eed8/bin/uautomizer-verify-uTZkv6EMXl/data/cf56ad6e3/78f97b3c5c16456a9076a0305241a446/FLAG1008b177c [2023-11-12 02:33:10,182 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ed7c80-6852-4927-8bce-e6427865eed8/bin/uautomizer-verify-uTZkv6EMXl/data/cf56ad6e3/78f97b3c5c16456a9076a0305241a446 [2023-11-12 02:33:10,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:33:10,186 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:33:10,188 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:33:10,188 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:33:10,195 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:33:10,195 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:33:10" (1/1) ... [2023-11-12 02:33:10,197 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72fc0460 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:10, skipping insertion in model container [2023-11-12 02:33:10,197 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:33:10" (1/1) ... [2023-11-12 02:33:10,377 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:33:12,524 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_52ed7c80-6852-4927-8bce-e6427865eed8/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i[216842,216855] [2023-11-12 02:33:12,595 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:33:12,658 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:33:12,990 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_52ed7c80-6852-4927-8bce-e6427865eed8/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i[216842,216855] [2023-11-12 02:33:13,074 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:33:13,173 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:33:13,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:13 WrapperNode [2023-11-12 02:33:13,174 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:33:13,176 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:33:13,176 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:33:13,176 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:33:13,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:13" (1/1) ... [2023-11-12 02:33:13,340 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:13" (1/1) ... [2023-11-12 02:33:13,517 INFO L138 Inliner]: procedures = 205, calls = 1435, calls flagged for inlining = 91, calls inlined = 85, statements flattened = 3691 [2023-11-12 02:33:13,517 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:33:13,518 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:33:13,519 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:33:13,519 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:33:13,528 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:13" (1/1) ... [2023-11-12 02:33:13,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:13" (1/1) ... [2023-11-12 02:33:13,571 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:13" (1/1) ... [2023-11-12 02:33:13,571 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:13" (1/1) ... [2023-11-12 02:33:13,700 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:13" (1/1) ... [2023-11-12 02:33:13,729 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:13" (1/1) ... [2023-11-12 02:33:13,774 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:13" (1/1) ... [2023-11-12 02:33:13,798 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:13" (1/1) ... [2023-11-12 02:33:13,840 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:33:13,841 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:33:13,841 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:33:13,841 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:33:13,843 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:13" (1/1) ... [2023-11-12 02:33:13,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:33:13,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ed7c80-6852-4927-8bce-e6427865eed8/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:33:13,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ed7c80-6852-4927-8bce-e6427865eed8/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:33:13,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ed7c80-6852-4927-8bce-e6427865eed8/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:33:13,923 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-12 02:33:13,924 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-12 02:33:13,924 INFO L130 BoogieDeclarations]: Found specification of procedure uas_zap_pending [2023-11-12 02:33:13,924 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_zap_pending [2023-11-12 02:33:13,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 02:33:13,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 02:33:13,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 02:33:13,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 02:33:13,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 02:33:13,926 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 02:33:13,926 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2023-11-12 02:33:13,926 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2023-11-12 02:33:13,926 INFO L130 BoogieDeclarations]: Found specification of procedure uas_alloc_data_urb [2023-11-12 02:33:13,926 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_alloc_data_urb [2023-11-12 02:33:13,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-12 02:33:13,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-12 02:33:13,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 02:33:13,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 02:33:13,929 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2023-11-12 02:33:13,929 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2023-11-12 02:33:13,929 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2023-11-12 02:33:13,929 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2023-11-12 02:33:13,929 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-11-12 02:33:13,930 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-11-12 02:33:13,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 02:33:13,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 02:33:13,930 INFO L130 BoogieDeclarations]: Found specification of procedure uas_add_work [2023-11-12 02:33:13,931 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_add_work [2023-11-12 02:33:13,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_3 [2023-11-12 02:33:13,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_3 [2023-11-12 02:33:13,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 02:33:13,931 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 02:33:13,932 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:33:13,932 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:33:13,933 INFO L130 BoogieDeclarations]: Found specification of procedure uas_find_endpoints [2023-11-12 02:33:13,933 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_find_endpoints [2023-11-12 02:33:13,933 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-12 02:33:13,934 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-12 02:33:13,934 INFO L130 BoogieDeclarations]: Found specification of procedure uas_log_cmd_state [2023-11-12 02:33:13,934 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_log_cmd_state [2023-11-12 02:33:13,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:33:13,934 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-12 02:33:13,934 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-12 02:33:13,935 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2023-11-12 02:33:13,935 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2023-11-12 02:33:13,935 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_urb [2023-11-12 02:33:13,935 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_urb [2023-11-12 02:33:13,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:33:13,935 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2023-11-12 02:33:13,936 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2023-11-12 02:33:13,936 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2023-11-12 02:33:13,936 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2023-11-12 02:33:13,936 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-12 02:33:13,936 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-12 02:33:13,936 INFO L130 BoogieDeclarations]: Found specification of procedure uas_xfer_data [2023-11-12 02:33:13,937 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_xfer_data [2023-11-12 02:33:13,937 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2023-11-12 02:33:13,937 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2023-11-12 02:33:13,937 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wait_anchor_empty_timeout [2023-11-12 02:33:13,937 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wait_anchor_empty_timeout [2023-11-12 02:33:13,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:33:13,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:33:13,938 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-12 02:33:13,938 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-12 02:33:13,938 INFO L130 BoogieDeclarations]: Found specification of procedure uas_try_complete [2023-11-12 02:33:13,938 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_try_complete [2023-11-12 02:33:13,938 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_report_bus_reset [2023-11-12 02:33:13,938 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_report_bus_reset [2023-11-12 02:33:13,939 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-12 02:33:13,939 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-12 02:33:13,940 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-11-12 02:33:13,940 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-11-12 02:33:13,941 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-12 02:33:13,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-12 02:33:13,941 INFO L130 BoogieDeclarations]: Found specification of procedure uas_wait_for_pending_cmnds [2023-11-12 02:33:13,941 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_wait_for_pending_cmnds [2023-11-12 02:33:13,941 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2023-11-12 02:33:13,942 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2023-11-12 02:33:13,942 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-12 02:33:13,942 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-12 02:33:13,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 02:33:13,943 INFO L130 BoogieDeclarations]: Found specification of procedure uas_data_cmplt [2023-11-12 02:33:13,943 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_data_cmplt [2023-11-12 02:33:13,943 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-12 02:33:13,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-12 02:33:13,943 INFO L130 BoogieDeclarations]: Found specification of procedure __be16_to_cpup [2023-11-12 02:33:13,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __be16_to_cpup [2023-11-12 02:33:13,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 02:33:13,944 INFO L130 BoogieDeclarations]: Found specification of procedure uas_shutdown [2023-11-12 02:33:13,944 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_shutdown [2023-11-12 02:33:13,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:33:13,944 INFO L130 BoogieDeclarations]: Found specification of procedure uas_do_work [2023-11-12 02:33:13,945 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_do_work [2023-11-12 02:33:13,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 02:33:13,945 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 02:33:13,946 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-12 02:33:13,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-12 02:33:13,946 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-12 02:33:13,946 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-12 02:33:13,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-12 02:33:13,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-12 02:33:13,947 INFO L130 BoogieDeclarations]: Found specification of procedure uas_disconnect [2023-11-12 02:33:13,947 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_disconnect [2023-11-12 02:33:13,947 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2023-11-12 02:33:13,947 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2023-11-12 02:33:13,947 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2023-11-12 02:33:13,947 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2023-11-12 02:33:13,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:33:13,948 INFO L130 BoogieDeclarations]: Found specification of procedure usb_pipe_endpoint [2023-11-12 02:33:13,948 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_pipe_endpoint [2023-11-12 02:33:13,948 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_out [2023-11-12 02:33:13,948 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_out [2023-11-12 02:33:13,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 02:33:13,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 02:33:13,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-12 02:33:13,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-12 02:33:13,949 INFO L130 BoogieDeclarations]: Found specification of procedure uas_stat_cmplt [2023-11-12 02:33:13,949 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_stat_cmplt [2023-11-12 02:33:13,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:33:13,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:33:13,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:33:13,950 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 02:33:13,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 02:33:13,951 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2023-11-12 02:33:13,951 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2023-11-12 02:33:13,952 INFO L130 BoogieDeclarations]: Found specification of procedure uas_configure_endpoints [2023-11-12 02:33:13,952 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_configure_endpoints [2023-11-12 02:33:13,952 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-12 02:33:13,952 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-12 02:33:13,952 INFO L130 BoogieDeclarations]: Found specification of procedure uas_free_unsubmitted_urbs [2023-11-12 02:33:13,952 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_free_unsubmitted_urbs [2023-11-12 02:33:13,953 INFO L130 BoogieDeclarations]: Found specification of procedure uas_find_uas_alt_setting [2023-11-12 02:33:13,953 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_find_uas_alt_setting [2023-11-12 02:33:13,953 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-11-12 02:33:13,953 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-11-12 02:33:13,953 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_in [2023-11-12 02:33:13,953 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_in [2023-11-12 02:33:13,953 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-12 02:33:13,954 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-12 02:33:13,954 INFO L130 BoogieDeclarations]: Found specification of procedure lock_is_held [2023-11-12 02:33:13,954 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_is_held [2023-11-12 02:33:13,954 INFO L130 BoogieDeclarations]: Found specification of procedure uas_submit_urbs [2023-11-12 02:33:13,954 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_submit_urbs [2023-11-12 02:33:13,955 INFO L130 BoogieDeclarations]: Found specification of procedure usb_reset_device [2023-11-12 02:33:13,956 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_reset_device [2023-11-12 02:33:13,956 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_hw_sectors [2023-11-12 02:33:13,956 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_hw_sectors [2023-11-12 02:33:13,956 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-12 02:33:13,956 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-12 02:33:13,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:33:13,957 INFO L130 BoogieDeclarations]: Found specification of procedure uas_free_streams [2023-11-12 02:33:13,957 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_free_streams [2023-11-12 02:33:13,957 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-11-12 02:33:13,957 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-11-12 02:33:13,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:33:13,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:33:14,686 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:33:14,690 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:33:15,039 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 02:33:19,164 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:33:19,191 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:33:19,191 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:33:19,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:33:19 BoogieIcfgContainer [2023-11-12 02:33:19,201 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:33:19,204 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:33:19,208 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:33:19,215 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:33:19,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:33:10" (1/3) ... [2023-11-12 02:33:19,217 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b5012ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:33:19, skipping insertion in model container [2023-11-12 02:33:19,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:13" (2/3) ... [2023-11-12 02:33:19,218 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b5012ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:33:19, skipping insertion in model container [2023-11-12 02:33:19,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:33:19" (3/3) ... [2023-11-12 02:33:19,219 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i [2023-11-12 02:33:19,240 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:33:19,240 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:33:19,340 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:33:19,349 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;@241b2970, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:33:19,349 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:33:19,364 INFO L276 IsEmpty]: Start isEmpty. Operand has 1257 states, 929 states have (on average 1.4155005382131325) internal successors, (1315), 962 states have internal predecessors, (1315), 257 states have call successors, (257), 70 states have call predecessors, (257), 69 states have return successors, (252), 244 states have call predecessors, (252), 252 states have call successors, (252) [2023-11-12 02:33:19,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-12 02:33:19,425 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:33:19,426 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-12 02:33:19,427 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:33:19,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:19,433 INFO L85 PathProgramCache]: Analyzing trace with hash -2008316773, now seen corresponding path program 1 times [2023-11-12 02:33:19,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:19,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081163629] [2023-11-12 02:33:19,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:19,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:21,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:21,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:33:21,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:21,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:33:21,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:21,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:33:21,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:21,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:33:21,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:21,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:33:21,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:21,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:33:21,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:21,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:33:21,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:21,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:33:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:21,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:33:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:21,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-12 02:33:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:21,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-12 02:33:21,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:21,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-12 02:33:21,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:21,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-12 02:33:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:21,714 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-12 02:33:21,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:33:21,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081163629] [2023-11-12 02:33:21,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081163629] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:33:21,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:33:21,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:33:21,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316102761] [2023-11-12 02:33:21,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:33:21,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:33:21,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:33:21,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:33:21,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:33:21,784 INFO L87 Difference]: Start difference. First operand has 1257 states, 929 states have (on average 1.4155005382131325) internal successors, (1315), 962 states have internal predecessors, (1315), 257 states have call successors, (257), 70 states have call predecessors, (257), 69 states have return successors, (252), 244 states have call predecessors, (252), 252 states have call successors, (252) Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 02:33:28,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:33:28,662 INFO L93 Difference]: Finished difference Result 2902 states and 4392 transitions. [2023-11-12 02:33:28,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:33:28,670 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 101 [2023-11-12 02:33:28,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:33:28,722 INFO L225 Difference]: With dead ends: 2902 [2023-11-12 02:33:28,723 INFO L226 Difference]: Without dead ends: 1634 [2023-11-12 02:33:28,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:33:28,746 INFO L413 NwaCegarLoop]: 957 mSDtfsCounter, 2388 mSDsluCounter, 1639 mSDsCounter, 0 mSdLazyCounter, 2409 mSolverCounterSat, 1271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2455 SdHoareTripleChecker+Valid, 2596 SdHoareTripleChecker+Invalid, 3680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1271 IncrementalHoareTripleChecker+Valid, 2409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:33:28,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2455 Valid, 2596 Invalid, 3680 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1271 Valid, 2409 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-11-12 02:33:28,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2023-11-12 02:33:29,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1241. [2023-11-12 02:33:29,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1241 states, 920 states have (on average 1.392391304347826) internal successors, (1281), 946 states have internal predecessors, (1281), 252 states have call successors, (252), 69 states have call predecessors, (252), 68 states have return successors, (251), 243 states have call predecessors, (251), 251 states have call successors, (251) [2023-11-12 02:33:29,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1784 transitions. [2023-11-12 02:33:29,059 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1784 transitions. Word has length 101 [2023-11-12 02:33:29,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:33:29,060 INFO L495 AbstractCegarLoop]: Abstraction has 1241 states and 1784 transitions. [2023-11-12 02:33:29,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 02:33:29,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1784 transitions. [2023-11-12 02:33:29,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-12 02:33:29,071 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:33:29,072 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-12 02:33:29,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:33:29,072 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:33:29,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:29,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1189698389, now seen corresponding path program 1 times [2023-11-12 02:33:29,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:29,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608045434] [2023-11-12 02:33:29,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:29,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:30,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:30,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:33:30,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:30,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:33:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:30,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:33:30,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:30,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:33:30,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:30,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:33:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:30,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:33:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:30,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:33:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:30,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:33:30,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:30,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:33:30,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:30,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-12 02:33:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:30,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-12 02:33:30,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:30,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-12 02:33:30,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:30,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-12 02:33:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:30,571 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-12 02:33:30,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:33:30,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608045434] [2023-11-12 02:33:30,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608045434] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:33:30,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:33:30,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:33:30,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858309248] [2023-11-12 02:33:30,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:33:30,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:33:30,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:33:30,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:33:30,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:33:30,584 INFO L87 Difference]: Start difference. First operand 1241 states and 1784 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-12 02:33:39,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:33:39,542 INFO L93 Difference]: Finished difference Result 1638 states and 2449 transitions. [2023-11-12 02:33:39,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:33:39,543 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 101 [2023-11-12 02:33:39,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:33:39,563 INFO L225 Difference]: With dead ends: 1638 [2023-11-12 02:33:39,564 INFO L226 Difference]: Without dead ends: 1635 [2023-11-12 02:33:39,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:33:39,567 INFO L413 NwaCegarLoop]: 932 mSDtfsCounter, 2393 mSDsluCounter, 2894 mSDsCounter, 0 mSdLazyCounter, 3920 mSolverCounterSat, 1270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2459 SdHoareTripleChecker+Valid, 3826 SdHoareTripleChecker+Invalid, 5190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1270 IncrementalHoareTripleChecker+Valid, 3920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2023-11-12 02:33:39,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2459 Valid, 3826 Invalid, 5190 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1270 Valid, 3920 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2023-11-12 02:33:39,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1635 states. [2023-11-12 02:33:39,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1635 to 1242. [2023-11-12 02:33:39,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1242 states, 921 states have (on average 1.3919652551574375) internal successors, (1282), 947 states have internal predecessors, (1282), 252 states have call successors, (252), 69 states have call predecessors, (252), 68 states have return successors, (251), 243 states have call predecessors, (251), 251 states have call successors, (251) [2023-11-12 02:33:39,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 1785 transitions. [2023-11-12 02:33:39,681 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 1785 transitions. Word has length 101 [2023-11-12 02:33:39,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:33:39,684 INFO L495 AbstractCegarLoop]: Abstraction has 1242 states and 1785 transitions. [2023-11-12 02:33:39,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-12 02:33:39,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 1785 transitions. [2023-11-12 02:33:39,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-12 02:33:39,693 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:33:39,694 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-12 02:33:39,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:33:39,694 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:33:39,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:39,695 INFO L85 PathProgramCache]: Analyzing trace with hash 600900044, now seen corresponding path program 1 times [2023-11-12 02:33:39,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:39,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928901193] [2023-11-12 02:33:39,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:39,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:33:40,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:41,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:33:41,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:41,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:33:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:41,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:33:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:41,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:33:41,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:41,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:33:41,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:41,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:33:41,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:41,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:33:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:41,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:33:41,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:41,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:33:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:41,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-12 02:33:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:41,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-12 02:33:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:41,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-12 02:33:41,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:41,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-12 02:33:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:33:41,666 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-12 02:33:41,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:33:41,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928901193] [2023-11-12 02:33:41,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928901193] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:33:41,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:33:41,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:33:41,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27745911] [2023-11-12 02:33:41,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:33:41,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:33:41,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:33:41,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:33:41,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:33:41,675 INFO L87 Difference]: Start difference. First operand 1242 states and 1785 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 02:33:48,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:33:51,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:33:51,136 INFO L93 Difference]: Finished difference Result 2867 states and 4248 transitions. [2023-11-12 02:33:51,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:33:51,137 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 106 [2023-11-12 02:33:51,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:33:51,157 INFO L225 Difference]: With dead ends: 2867 [2023-11-12 02:33:51,157 INFO L226 Difference]: Without dead ends: 1638 [2023-11-12 02:33:51,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:33:51,171 INFO L413 NwaCegarLoop]: 928 mSDtfsCounter, 2385 mSDsluCounter, 2880 mSDsCounter, 0 mSdLazyCounter, 3951 mSolverCounterSat, 1254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2452 SdHoareTripleChecker+Valid, 3808 SdHoareTripleChecker+Invalid, 5205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1254 IncrementalHoareTripleChecker+Valid, 3951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:33:51,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2452 Valid, 3808 Invalid, 5205 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1254 Valid, 3951 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2023-11-12 02:33:51,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2023-11-12 02:33:51,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 1243. [2023-11-12 02:33:51,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 922 states have (on average 1.3915401301518437) internal successors, (1283), 948 states have internal predecessors, (1283), 252 states have call successors, (252), 69 states have call predecessors, (252), 68 states have return successors, (251), 243 states have call predecessors, (251), 251 states have call successors, (251) [2023-11-12 02:33:51,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 1786 transitions. [2023-11-12 02:33:51,265 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 1786 transitions. Word has length 106 [2023-11-12 02:33:51,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:33:51,268 INFO L495 AbstractCegarLoop]: Abstraction has 1243 states and 1786 transitions. [2023-11-12 02:33:51,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 02:33:51,269 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 1786 transitions. [2023-11-12 02:33:51,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-12 02:33:51,278 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:33:51,279 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-12 02:33:51,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:33:51,279 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:33:51,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:33:51,280 INFO L85 PathProgramCache]: Analyzing trace with hash -548358952, now seen corresponding path program 1 times [2023-11-12 02:33:51,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:33:51,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550265164] [2023-11-12 02:33:51,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:33:51,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms