./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--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b 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_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 73e11d79da89f19153d89e853a8d4a3607f25d95ae579da9c148a59839e48ce3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:58:20,386 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:58:20,495 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-06 21:58:20,507 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:58:20,508 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:58:20,561 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:58:20,562 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:58:20,563 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:58:20,564 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:58:20,570 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:58:20,571 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:58:20,572 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:58:20,572 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:58:20,575 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:58:20,575 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:58:20,576 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:58:20,576 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:58:20,577 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:58:20,577 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:58:20,578 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:58:20,578 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:58:20,579 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:58:20,580 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:58:20,581 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:58:20,581 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:58:20,582 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:58:20,582 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:58:20,583 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:58:20,583 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:58:20,584 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:58:20,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:58:20,586 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:58:20,586 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:58:20,586 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:58:20,587 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:58:20,587 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:58:20,587 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_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73e11d79da89f19153d89e853a8d4a3607f25d95ae579da9c148a59839e48ce3 [2023-11-06 21:58:20,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:58:21,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:58:21,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:58:21,020 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:58:21,024 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:58:21,026 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2023-11-06 21:58:24,853 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:58:26,043 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:58:26,044 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2023-11-06 21:58:26,137 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/data/97e06e5ca/6195b595043245aa83d4a5485de10bf7/FLAG35087c0a5 [2023-11-06 21:58:26,159 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/data/97e06e5ca/6195b595043245aa83d4a5485de10bf7 [2023-11-06 21:58:26,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:58:26,173 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:58:26,180 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:58:26,181 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:58:26,188 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:58:26,189 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:58:26" (1/1) ... [2023-11-06 21:58:26,191 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eeadfe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:26, skipping insertion in model container [2023-11-06 21:58:26,191 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:58:26" (1/1) ... [2023-11-06 21:58:26,555 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:58:31,355 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_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i[468644,468657] [2023-11-06 21:58:31,475 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:58:31,639 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:58:31,800 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bsfl %1,%0": "=r" (r): "rm" (x), "0" (-1)); [7211] [2023-11-06 21:58:31,803 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bsrl %1,%0": "=r" (r): "rm" (x), "0" (-1)); [7219] [2023-11-06 21:58:31,819 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [7634-7635] [2023-11-06 21:58:31,821 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [7663-7664] [2023-11-06 21:58:31,857 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [8350] [2023-11-06 21:58:31,857 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [8357] [2023-11-06 21:58:31,963 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8743] [2023-11-06 21:58:31,963 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8745] [2023-11-06 21:58:32,334 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_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i[468644,468657] [2023-11-06 21:58:32,348 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:58:32,713 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:58:32,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:32 WrapperNode [2023-11-06 21:58:32,713 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:58:32,715 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:58:32,715 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:58:32,715 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:58:32,725 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:32" (1/1) ... [2023-11-06 21:58:32,910 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:32" (1/1) ... [2023-11-06 21:58:33,335 INFO L138 Inliner]: procedures = 440, calls = 4582, calls flagged for inlining = 181, calls inlined = 178, statements flattened = 9223 [2023-11-06 21:58:33,336 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:58:33,337 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:58:33,338 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:58:33,338 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:58:33,354 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:32" (1/1) ... [2023-11-06 21:58:33,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:32" (1/1) ... [2023-11-06 21:58:33,462 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:32" (1/1) ... [2023-11-06 21:58:33,463 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:32" (1/1) ... [2023-11-06 21:58:33,815 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:32" (1/1) ... [2023-11-06 21:58:33,868 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:32" (1/1) ... [2023-11-06 21:58:33,930 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:32" (1/1) ... [2023-11-06 21:58:33,982 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:32" (1/1) ... [2023-11-06 21:58:34,053 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:58:34,054 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:58:34,055 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:58:34,055 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:58:34,057 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:32" (1/1) ... [2023-11-06 21:58:34,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:58:34,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:34,106 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:58:34,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:58:34,159 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2023-11-06 21:58:34,160 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2023-11-06 21:58:34,160 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2023-11-06 21:58:34,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2023-11-06 21:58:34,162 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_tx_ring [2023-11-06 21:58:34,163 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_tx_ring [2023-11-06 21:58:34,163 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2023-11-06 21:58:34,164 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2023-11-06 21:58:34,164 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-06 21:58:34,164 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-06 21:58:34,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-06 21:58:34,164 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-06 21:58:34,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-06 21:58:34,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-06 21:58:34,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-06 21:58:34,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-06 21:58:34,165 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_init [2023-11-06 21:58:34,165 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_init [2023-11-06 21:58:34,166 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_calc_rssi [2023-11-06 21:58:34,167 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_calc_rssi [2023-11-06 21:58:34,167 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_writereg [2023-11-06 21:58:34,168 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_writereg [2023-11-06 21:58:34,168 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2023-11-06 21:58:34,168 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2023-11-06 21:58:34,168 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_generic_frame_duration [2023-11-06 21:58:34,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_generic_frame_duration [2023-11-06 21:58:34,170 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2023-11-06 21:58:34,170 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2023-11-06 21:58:34,170 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-06 21:58:34,171 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-06 21:58:34,171 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2023-11-06 21:58:34,172 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2023-11-06 21:58:34,172 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-06 21:58:34,172 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-06 21:58:34,172 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-06 21:58:34,173 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-06 21:58:34,173 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_write_phy_antenna [2023-11-06 21:58:34,173 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_write_phy_antenna [2023-11-06 21:58:34,173 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_init [2023-11-06 21:58:34,173 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_init [2023-11-06 21:58:34,173 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2023-11-06 21:58:34,174 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2023-11-06 21:58:34,174 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_rx_ring [2023-11-06 21:58:34,174 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_rx_ring [2023-11-06 21:58:34,174 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_bss_info_changed [2023-11-06 21:58:34,174 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_bss_info_changed [2023-11-06 21:58:34,175 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_calc_rssi [2023-11-06 21:58:34,175 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_calc_rssi [2023-11-06 21:58:34,175 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-06 21:58:34,175 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-06 21:58:34,175 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-06 21:58:34,176 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-06 21:58:34,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:58:34,176 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2023-11-06 21:58:34,176 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2023-11-06 21:58:34,176 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2023-11-06 21:58:34,177 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2023-11-06 21:58:34,177 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-06 21:58:34,177 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-06 21:58:34,177 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam [2023-11-06 21:58:34,178 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam [2023-11-06 21:58:34,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-06 21:58:34,179 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2023-11-06 21:58:34,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2023-11-06 21:58:34,180 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-06 21:58:34,180 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-06 21:58:34,180 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-06 21:58:34,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-06 21:58:34,182 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_stop [2023-11-06 21:58:34,182 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_stop [2023-11-06 21:58:34,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-06 21:58:34,182 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-06 21:58:34,182 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-06 21:58:34,183 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2023-11-06 21:58:34,183 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2023-11-06 21:58:34,183 INFO L130 BoogieDeclarations]: Found specification of procedure pci_zalloc_consistent [2023-11-06 21:58:34,184 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_zalloc_consistent [2023-11-06 21:58:34,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 21:58:34,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_10 [2023-11-06 21:58:34,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_10 [2023-11-06 21:58:34,184 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-06 21:58:34,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-06 21:58:34,185 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_get_tsf [2023-11-06 21:58:34,185 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_get_tsf [2023-11-06 21:58:34,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-06 21:58:34,185 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-06 21:58:34,186 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2023-11-06 21:58:34,187 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2023-11-06 21:58:34,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-06 21:58:34,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-06 21:58:34,187 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2023-11-06 21:58:34,188 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2023-11-06 21:58:34,188 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_add_interface [2023-11-06 21:58:34,188 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_add_interface [2023-11-06 21:58:34,189 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_write_phy_antenna [2023-11-06 21:58:34,189 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_write_phy_antenna [2023-11-06 21:58:34,189 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-06 21:58:34,190 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-06 21:58:34,190 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-06 21:58:34,190 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-06 21:58:34,190 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2023-11-06 21:58:34,190 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2023-11-06 21:58:34,191 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2023-11-06 21:58:34,191 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2023-11-06 21:58:34,191 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_set_channel [2023-11-06 21:58:34,191 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_set_channel [2023-11-06 21:58:34,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-06 21:58:34,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-06 21:58:34,192 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2023-11-06 21:58:34,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2023-11-06 21:58:34,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 21:58:34,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:58:34,193 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2023-11-06 21:58:34,194 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2023-11-06 21:58:34,194 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2023-11-06 21:58:34,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2023-11-06 21:58:34,194 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2023-11-06 21:58:34,195 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2023-11-06 21:58:34,195 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-06 21:58:34,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-06 21:58:34,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 21:58:34,201 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-06 21:58:34,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-06 21:58:34,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_10 [2023-11-06 21:58:34,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_10 [2023-11-06 21:58:34,201 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2023-11-06 21:58:34,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2023-11-06 21:58:34,202 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_init [2023-11-06 21:58:34,202 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_init [2023-11-06 21:58:34,202 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_set_channel [2023-11-06 21:58:34,203 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_set_channel [2023-11-06 21:58:34,204 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_resume [2023-11-06 21:58:34,204 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_resume [2023-11-06 21:58:34,204 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam2 [2023-11-06 21:58:34,204 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam2 [2023-11-06 21:58:34,205 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2023-11-06 21:58:34,205 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2023-11-06 21:58:34,205 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_calc_rssi [2023-11-06 21:58:34,206 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_calc_rssi [2023-11-06 21:58:34,206 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_write_phy [2023-11-06 21:58:34,206 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_write_phy [2023-11-06 21:58:34,206 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_basic_rates [2023-11-06 21:58:34,206 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_basic_rates [2023-11-06 21:58:34,207 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2023-11-06 21:58:34,207 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2023-11-06 21:58:34,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:58:34,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:58:34,209 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-06 21:58:34,212 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-06 21:58:34,214 INFO L130 BoogieDeclarations]: Found specification of procedure write_sa2400 [2023-11-06 21:58:34,215 INFO L138 BoogieDeclarations]: Found implementation of procedure write_sa2400 [2023-11-06 21:58:34,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-06 21:58:34,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-06 21:58:34,216 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_tx [2023-11-06 21:58:34,217 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_tx [2023-11-06 21:58:34,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-06 21:58:34,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-06 21:58:34,223 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2023-11-06 21:58:34,223 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2023-11-06 21:58:34,223 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2023-11-06 21:58:34,223 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2023-11-06 21:58:34,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_5 [2023-11-06 21:58:34,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_5 [2023-11-06 21:58:34,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_4 [2023-11-06 21:58:34,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_4 [2023-11-06 21:58:34,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_9 [2023-11-06 21:58:34,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_9 [2023-11-06 21:58:34,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_8 [2023-11-06 21:58:34,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_8 [2023-11-06 21:58:34,225 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2023-11-06 21:58:34,225 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2023-11-06 21:58:34,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_7 [2023-11-06 21:58:34,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_7 [2023-11-06 21:58:34,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_6 [2023-11-06 21:58:34,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_6 [2023-11-06 21:58:34,226 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2023-11-06 21:58:34,226 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2023-11-06 21:58:34,226 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove [2023-11-06 21:58:34,227 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove [2023-11-06 21:58:34,227 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_set_channel [2023-11-06 21:58:34,227 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_set_channel [2023-11-06 21:58:34,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-06 21:58:34,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-06 21:58:34,227 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2023-11-06 21:58:34,228 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2023-11-06 21:58:34,228 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-06 21:58:34,228 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-06 21:58:34,228 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_stop [2023-11-06 21:58:34,228 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_stop [2023-11-06 21:58:34,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-06 21:58:34,229 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-06 21:58:34,229 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2023-11-06 21:58:34,229 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2023-11-06 21:58:34,229 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 21:58:34,229 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 21:58:34,230 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_int_disable [2023-11-06 21:58:34,230 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_int_disable [2023-11-06 21:58:34,230 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2023-11-06 21:58:34,230 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2023-11-06 21:58:34,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:58:34,230 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_write_phy_antenna [2023-11-06 21:58:34,231 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_write_phy_antenna [2023-11-06 21:58:34,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 21:58:34,231 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_stop [2023-11-06 21:58:34,231 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_stop [2023-11-06 21:58:34,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-06 21:58:34,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-06 21:58:34,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 21:58:34,232 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-06 21:58:34,232 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-06 21:58:34,232 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_init [2023-11-06 21:58:34,232 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_init [2023-11-06 21:58:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2023-11-06 21:58:34,233 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2023-11-06 21:58:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-06 21:58:34,233 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-06 21:58:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-11-06 21:58:34,233 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-11-06 21:58:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure _ieee80211_hw_set [2023-11-06 21:58:34,234 INFO L138 BoogieDeclarations]: Found implementation of procedure _ieee80211_hw_set [2023-11-06 21:58:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure write_max2820 [2023-11-06 21:58:34,234 INFO L138 BoogieDeclarations]: Found implementation of procedure write_max2820 [2023-11-06 21:58:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure write_grf5101 [2023-11-06 21:58:34,234 INFO L138 BoogieDeclarations]: Found implementation of procedure write_grf5101 [2023-11-06 21:58:34,235 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_readreg [2023-11-06 21:58:34,235 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_readreg [2023-11-06 21:58:34,235 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_beacon_work [2023-11-06 21:58:34,235 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_beacon_work [2023-11-06 21:58:34,235 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove_interface [2023-11-06 21:58:34,235 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove_interface [2023-11-06 21:58:34,236 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2023-11-06 21:58:34,236 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2023-11-06 21:58:34,236 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2023-11-06 21:58:34,236 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2023-11-06 21:58:34,236 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_rx [2023-11-06 21:58:34,236 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_rx [2023-11-06 21:58:34,237 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_set_channel [2023-11-06 21:58:34,237 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_set_channel [2023-11-06 21:58:34,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:58:34,237 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2023-11-06 21:58:34,237 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2023-11-06 21:58:34,238 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2023-11-06 21:58:34,238 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2023-11-06 21:58:34,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-06 21:58:34,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-06 21:58:34,238 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_tx [2023-11-06 21:58:34,238 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_tx [2023-11-06 21:58:34,239 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_configure_filter [2023-11-06 21:58:34,239 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_configure_filter [2023-11-06 21:58:34,239 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_conf_ac_parm [2023-11-06 21:58:34,239 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_conf_ac_parm [2023-11-06 21:58:34,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-06 21:58:34,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-06 21:58:34,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-06 21:58:34,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-06 21:58:34,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2023-11-06 21:58:34,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2023-11-06 21:58:34,240 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_stop [2023-11-06 21:58:34,240 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_stop [2023-11-06 21:58:34,241 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2023-11-06 21:58:34,241 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2023-11-06 21:58:34,241 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_prepare_multicast [2023-11-06 21:58:34,241 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_prepare_multicast [2023-11-06 21:58:34,241 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-06 21:58:34,241 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-06 21:58:34,242 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-11-06 21:58:34,242 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-11-06 21:58:34,242 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2023-11-06 21:58:34,242 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2023-11-06 21:58:34,242 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_multiread [2023-11-06 21:58:34,242 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_multiread [2023-11-06 21:58:34,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:58:34,243 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_config [2023-11-06 21:58:34,243 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_config [2023-11-06 21:58:34,244 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_three_wire_io [2023-11-06 21:58:34,249 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_three_wire_io [2023-11-06 21:58:34,249 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_tx [2023-11-06 21:58:34,249 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_tx [2023-11-06 21:58:34,250 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2023-11-06 21:58:34,250 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2023-11-06 21:58:34,250 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2023-11-06 21:58:34,250 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2023-11-06 21:58:35,712 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:58:35,718 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:58:36,446 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-06 21:58:50,150 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:58:50,196 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:58:50,196 INFO L302 CfgBuilder]: Removed 78 assume(true) statements. [2023-11-06 21:58:50,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:50 BoogieIcfgContainer [2023-11-06 21:58:50,205 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:58:50,208 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:58:50,209 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:58:50,213 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:58:50,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:58:26" (1/3) ... [2023-11-06 21:58:50,216 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@530248a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:58:50, skipping insertion in model container [2023-11-06 21:58:50,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:32" (2/3) ... [2023-11-06 21:58:50,217 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@530248a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:58:50, skipping insertion in model container [2023-11-06 21:58:50,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:50" (3/3) ... [2023-11-06 21:58:50,219 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2023-11-06 21:58:50,245 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:58:50,245 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 21:58:50,443 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:58:50,457 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=LoopsAndPotentialCycles, 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;@24eec, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:58:50,458 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 21:58:50,484 INFO L276 IsEmpty]: Start isEmpty. Operand has 4306 states, 2685 states have (on average 1.3996275605214152) internal successors, (3758), 2840 states have internal predecessors, (3758), 1565 states have call successors, (1565), 133 states have call predecessors, (1565), 132 states have return successors, (1550), 1513 states have call predecessors, (1550), 1550 states have call successors, (1550) [2023-11-06 21:58:50,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2023-11-06 21:58:50,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:50,545 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:50,546 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:58:50,554 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:50,555 INFO L85 PathProgramCache]: Analyzing trace with hash 326311989, now seen corresponding path program 1 times [2023-11-06 21:58:50,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:50,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868770986] [2023-11-06 21:58:50,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:50,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:52,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:52,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 21:58:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:52,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:58:52,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:52,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:58:52,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:52,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-06 21:58:52,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:52,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:58:52,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:52,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:58:52,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 21:58:53,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:58:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:58:53,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 21:58:53,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:58:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:58:53,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 21:58:53,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:58:53,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:58:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 21:58:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:58:53,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:58:53,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 21:58:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:58:53,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:58:53,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-06 21:58:53,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:58:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:58:53,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-06 21:58:53,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:58:53,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:58:53,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-11-06 21:58:53,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:58:53,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:58:53,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-06 21:58:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:58:53,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:58:53,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-11-06 21:58:53,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:58:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:58:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-11-06 21:58:53,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:58:53,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-11-06 21:58:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:58:53,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:53,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-11-06 21:58:53,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:54,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:58:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:54,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-06 21:58:54,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:54,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:58:54,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:54,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-11-06 21:58:54,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:54,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:58:54,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:54,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-11-06 21:58:54,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:54,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:58:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:54,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2023-11-06 21:58:54,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:54,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868770986] [2023-11-06 21:58:54,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868770986] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:54,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:54,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:58:54,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310771018] [2023-11-06 21:58:54,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:54,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:58:54,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:54,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:58:54,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:58:54,277 INFO L87 Difference]: Start difference. First operand has 4306 states, 2685 states have (on average 1.3996275605214152) internal successors, (3758), 2840 states have internal predecessors, (3758), 1565 states have call successors, (1565), 133 states have call predecessors, (1565), 132 states have return successors, (1550), 1513 states have call predecessors, (1550), 1550 states have call successors, (1550) Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-06 21:59:01,163 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 [] [2023-11-06 21:59:03,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:05,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:07,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:09,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:11,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:12,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:24,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:59:24,993 INFO L93 Difference]: Finished difference Result 8625 states and 14384 transitions. [2023-11-06 21:59:24,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:59:24,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 278 [2023-11-06 21:59:24,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:59:25,084 INFO L225 Difference]: With dead ends: 8625 [2023-11-06 21:59:25,084 INFO L226 Difference]: Without dead ends: 4296 [2023-11-06 21:59:25,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:59:25,173 INFO L413 NwaCegarLoop]: 3381 mSDtfsCounter, 4960 mSDsluCounter, 1858 mSDsCounter, 0 mSdLazyCounter, 3887 mSolverCounterSat, 7070 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4972 SdHoareTripleChecker+Valid, 5239 SdHoareTripleChecker+Invalid, 10962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7070 IncrementalHoareTripleChecker+Valid, 3887 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.5s IncrementalHoareTripleChecker+Time [2023-11-06 21:59:25,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4972 Valid, 5239 Invalid, 10962 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7070 Valid, 3887 Invalid, 5 Unknown, 0 Unchecked, 29.5s Time] [2023-11-06 21:59:25,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4296 states. [2023-11-06 21:59:25,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4296 to 4044. [2023-11-06 21:59:25,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4044 states, 2440 states have (on average 1.3627049180327868) internal successors, (3325), 2509 states have internal predecessors, (3325), 1472 states have call successors, (1472), 132 states have call predecessors, (1472), 131 states have return successors, (1471), 1434 states have call predecessors, (1471), 1471 states have call successors, (1471) [2023-11-06 21:59:25,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4044 states to 4044 states and 6268 transitions. [2023-11-06 21:59:25,864 INFO L78 Accepts]: Start accepts. Automaton has 4044 states and 6268 transitions. Word has length 278 [2023-11-06 21:59:25,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:59:25,867 INFO L495 AbstractCegarLoop]: Abstraction has 4044 states and 6268 transitions. [2023-11-06 21:59:25,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-06 21:59:25,868 INFO L276 IsEmpty]: Start isEmpty. Operand 4044 states and 6268 transitions. [2023-11-06 21:59:25,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2023-11-06 21:59:25,882 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:59:25,887 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:59:25,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:59:25,888 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:59:25,889 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:25,889 INFO L85 PathProgramCache]: Analyzing trace with hash -897553843, now seen corresponding path program 1 times [2023-11-06 21:59:26,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:26,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091913699] [2023-11-06 21:59:26,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:26,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:27,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 21:59:27,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:27,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:59:27,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:27,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:59:27,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:27,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-06 21:59:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:27,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:59:27,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:27,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:59:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:27,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 21:59:27,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:27,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:59:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:27,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:59:27,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:27,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 21:59:27,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:27,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:59:27,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:27,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:59:27,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:27,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 21:59:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:27,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:59:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:27,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:59:27,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:27,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 21:59:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:27,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:59:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:27,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:59:27,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:27,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 21:59:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:27,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:59:27,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:27,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:59:27,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:27,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-06 21:59:27,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:27,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:59:27,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:28,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:59:28,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:28,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-06 21:59:28,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:28,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:59:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:28,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:59:28,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:28,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-11-06 21:59:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:28,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:59:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:28,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:59:28,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:28,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-06 21:59:28,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:28,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:59:28,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:28,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:59:28,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:28,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-11-06 21:59:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:28,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:59:28,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:28,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 21:59:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:28,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-11-06 21:59:28,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:28,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:59:28,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:28,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-11-06 21:59:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:28,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:59:28,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:28,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-11-06 21:59:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:28,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:59:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:28,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-06 21:59:28,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:28,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:59:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:28,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-11-06 21:59:28,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:28,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:59:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:28,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-11-06 21:59:28,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:28,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:59:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:28,474 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2023-11-06 21:59:28,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:59:28,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091913699] [2023-11-06 21:59:28,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091913699] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:59:28,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:59:28,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 21:59:28,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376154055] [2023-11-06 21:59:28,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:59:28,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:59:28,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:59:28,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:59:28,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:59:28,482 INFO L87 Difference]: Start difference. First operand 4044 states and 6268 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-06 21:59:31,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:33,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:34,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:36,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:40,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:47,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:50,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:54,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:13,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:00:13,195 INFO L93 Difference]: Finished difference Result 11777 states and 18348 transitions. [2023-11-06 22:00:13,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:00:13,196 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 278 [2023-11-06 22:00:13,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:00:13,314 INFO L225 Difference]: With dead ends: 11777 [2023-11-06 22:00:13,315 INFO L226 Difference]: Without dead ends: 7773 [2023-11-06 22:00:13,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:00:13,359 INFO L413 NwaCegarLoop]: 4219 mSDtfsCounter, 10377 mSDsluCounter, 5069 mSDsCounter, 0 mSdLazyCounter, 8918 mSolverCounterSat, 12858 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10781 SdHoareTripleChecker+Valid, 9288 SdHoareTripleChecker+Invalid, 21779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 12858 IncrementalHoareTripleChecker+Valid, 8918 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:00:13,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10781 Valid, 9288 Invalid, 21779 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [12858 Valid, 8918 Invalid, 3 Unknown, 0 Unchecked, 43.3s Time] [2023-11-06 22:00:13,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7773 states. [2023-11-06 22:00:14,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7773 to 7341. [2023-11-06 22:00:14,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7341 states, 4362 states have (on average 1.360385144429161) internal successors, (5934), 4479 states have internal predecessors, (5934), 2727 states have call successors, (2727), 250 states have call predecessors, (2727), 251 states have return successors, (2735), 2673 states have call predecessors, (2735), 2726 states have call successors, (2735) [2023-11-06 22:00:14,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7341 states to 7341 states and 11396 transitions. [2023-11-06 22:00:14,495 INFO L78 Accepts]: Start accepts. Automaton has 7341 states and 11396 transitions. Word has length 278 [2023-11-06 22:00:14,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:00:14,499 INFO L495 AbstractCegarLoop]: Abstraction has 7341 states and 11396 transitions. [2023-11-06 22:00:14,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-06 22:00:14,501 INFO L276 IsEmpty]: Start isEmpty. Operand 7341 states and 11396 transitions. [2023-11-06 22:00:14,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2023-11-06 22:00:14,520 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:00:14,520 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:00:14,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:00:14,521 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:00:14,522 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:00:14,522 INFO L85 PathProgramCache]: Analyzing trace with hash -628787504, now seen corresponding path program 1 times [2023-11-06 22:00:14,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:00:14,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879547437] [2023-11-06 22:00:14,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:00:14,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:00:15,288 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:00:15,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [965295938] [2023-11-06 22:00:15,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:00:15,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:00:15,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:00:15,296 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:00:15,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:00:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:17,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 5972 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:00:17,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:00:18,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2023-11-06 22:00:18,017 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:00:18,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:00:18,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879547437] [2023-11-06 22:00:18,018 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:00:18,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965295938] [2023-11-06 22:00:18,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965295938] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:00:18,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:00:18,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:00:18,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681555606] [2023-11-06 22:00:18,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:00:18,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:00:18,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:00:18,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:00:18,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:00:18,022 INFO L87 Difference]: Start difference. First operand 7341 states and 11396 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-06 22:00:18,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:00:18,528 INFO L93 Difference]: Finished difference Result 7346 states and 11402 transitions. [2023-11-06 22:00:18,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:00:18,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 330 [2023-11-06 22:00:18,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:00:18,638 INFO L225 Difference]: With dead ends: 7346 [2023-11-06 22:00:18,638 INFO L226 Difference]: Without dead ends: 7343 [2023-11-06 22:00:18,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:00:18,651 INFO L413 NwaCegarLoop]: 6267 mSDtfsCounter, 0 mSDsluCounter, 6262 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12529 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:00:18,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12529 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:00:18,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7343 states. [2023-11-06 22:00:19,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7343 to 7343. [2023-11-06 22:00:19,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 4364 states have (on average 1.3602199816681944) internal successors, (5936), 4481 states have internal predecessors, (5936), 2727 states have call successors, (2727), 250 states have call predecessors, (2727), 251 states have return successors, (2735), 2673 states have call predecessors, (2735), 2726 states have call successors, (2735) [2023-11-06 22:00:19,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 11398 transitions. [2023-11-06 22:00:19,551 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 11398 transitions. Word has length 330 [2023-11-06 22:00:19,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:00:19,554 INFO L495 AbstractCegarLoop]: Abstraction has 7343 states and 11398 transitions. [2023-11-06 22:00:19,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-06 22:00:19,554 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 11398 transitions. [2023-11-06 22:00:19,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2023-11-06 22:00:19,569 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:00:19,569 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:00:19,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:00:19,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:00:19,791 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:00:19,792 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:00:19,792 INFO L85 PathProgramCache]: Analyzing trace with hash -262358962, now seen corresponding path program 1 times [2023-11-06 22:00:19,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:00:19,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174191199] [2023-11-06 22:00:19,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:00:19,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:00:20,599 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:00:20,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1532670488] [2023-11-06 22:00:20,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:00:20,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:00:20,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:00:20,602 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:00:20,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:00:22,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:22,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 5975 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:00:22,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:00:23,628 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2023-11-06 22:00:23,628 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:00:23,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:00:23,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174191199] [2023-11-06 22:00:23,629 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:00:23,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532670488] [2023-11-06 22:00:23,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532670488] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:00:23,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:00:23,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:00:23,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279995983] [2023-11-06 22:00:23,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:00:23,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:00:23,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:00:23,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:00:23,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:00:23,633 INFO L87 Difference]: Start difference. First operand 7343 states and 11398 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-11-06 22:00:24,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:00:24,870 INFO L93 Difference]: Finished difference Result 21979 states and 34136 transitions. [2023-11-06 22:00:24,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:00:24,871 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 331 [2023-11-06 22:00:24,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:00:25,042 INFO L225 Difference]: With dead ends: 21979 [2023-11-06 22:00:25,042 INFO L226 Difference]: Without dead ends: 14676 [2023-11-06 22:00:25,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:00:25,117 INFO L413 NwaCegarLoop]: 8372 mSDtfsCounter, 6208 mSDsluCounter, 22941 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6212 SdHoareTripleChecker+Valid, 31313 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:00:25,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6212 Valid, 31313 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:00:25,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14676 states. [2023-11-06 22:00:26,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14676 to 14653. [2023-11-06 22:00:26,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14653 states, 8713 states have (on average 1.3612992080798807) internal successors, (11861), 8955 states have internal predecessors, (11861), 5435 states have call successors, (5435), 501 states have call predecessors, (5435), 504 states have return successors, (5464), 5320 states have call predecessors, (5464), 5434 states have call successors, (5464) [2023-11-06 22:00:27,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14653 states to 14653 states and 22760 transitions. [2023-11-06 22:00:27,029 INFO L78 Accepts]: Start accepts. Automaton has 14653 states and 22760 transitions. Word has length 331 [2023-11-06 22:00:27,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:00:27,032 INFO L495 AbstractCegarLoop]: Abstraction has 14653 states and 22760 transitions. [2023-11-06 22:00:27,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-11-06 22:00:27,032 INFO L276 IsEmpty]: Start isEmpty. Operand 14653 states and 22760 transitions. [2023-11-06 22:00:27,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2023-11-06 22:00:27,050 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:00:27,051 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:00:27,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:00:27,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-11-06 22:00:27,265 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:00:27,265 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:00:27,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1382973041, now seen corresponding path program 1 times [2023-11-06 22:00:27,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:00:27,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41774368] [2023-11-06 22:00:27,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:00:27,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:00:27,956 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:00:27,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1568207046] [2023-11-06 22:00:27,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:00:27,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:00:27,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:00:27,958 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:00:27,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:00:30,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:30,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 5979 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:00:30,169 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:00:30,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2023-11-06 22:00:30,779 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:00:30,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:00:30,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41774368] [2023-11-06 22:00:30,780 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:00:30,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568207046] [2023-11-06 22:00:30,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568207046] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:00:30,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:00:30,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:00:30,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996132595] [2023-11-06 22:00:30,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:00:30,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:00:30,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:00:30,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:00:30,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:00:30,783 INFO L87 Difference]: Start difference. First operand 14653 states and 22760 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-11-06 22:00:32,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:00:32,959 INFO L93 Difference]: Finished difference Result 43951 states and 68296 transitions. [2023-11-06 22:00:32,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:00:32,960 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 333 [2023-11-06 22:00:32,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:00:33,264 INFO L225 Difference]: With dead ends: 43951 [2023-11-06 22:00:33,265 INFO L226 Difference]: Without dead ends: 29338 [2023-11-06 22:00:33,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:00:33,393 INFO L413 NwaCegarLoop]: 6402 mSDtfsCounter, 6199 mSDsluCounter, 18986 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6203 SdHoareTripleChecker+Valid, 25388 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:00:33,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6203 Valid, 25388 Invalid, 43 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:00:33,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29338 states. [2023-11-06 22:00:37,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29338 to 29279. [2023-11-06 22:00:37,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29279 states, 17419 states have (on average 1.3616740341006945) internal successors, (23719), 17901 states have internal predecessors, (23719), 10849 states have call successors, (10849), 1003 states have call predecessors, (10849), 1010 states have return successors, (10940), 10622 states have call predecessors, (10940), 10848 states have call successors, (10940) [2023-11-06 22:00:37,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29279 states to 29279 states and 45508 transitions. [2023-11-06 22:00:37,632 INFO L78 Accepts]: Start accepts. Automaton has 29279 states and 45508 transitions. Word has length 333 [2023-11-06 22:00:37,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:00:37,633 INFO L495 AbstractCegarLoop]: Abstraction has 29279 states and 45508 transitions. [2023-11-06 22:00:37,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-11-06 22:00:37,634 INFO L276 IsEmpty]: Start isEmpty. Operand 29279 states and 45508 transitions. [2023-11-06 22:00:37,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2023-11-06 22:00:37,667 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:00:37,668 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:00:37,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:00:37,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:00:37,882 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:00:37,882 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:00:37,883 INFO L85 PathProgramCache]: Analyzing trace with hash 636135605, now seen corresponding path program 1 times [2023-11-06 22:00:37,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:00:37,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402484245] [2023-11-06 22:00:37,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:00:37,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:00:38,693 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:00:38,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1426675665] [2023-11-06 22:00:38,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:00:38,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:00:38,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:00:38,697 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:00:38,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:00:41,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:41,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 5977 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:00:41,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:00:41,839 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2023-11-06 22:00:41,839 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:00:41,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:00:41,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402484245] [2023-11-06 22:00:41,840 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:00:41,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426675665] [2023-11-06 22:00:41,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426675665] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:00:41,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:00:41,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:00:41,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923641516] [2023-11-06 22:00:41,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:00:41,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:00:41,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:00:41,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:00:41,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:00:41,844 INFO L87 Difference]: Start difference. First operand 29279 states and 45508 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-11-06 22:00:45,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:00:45,618 INFO L93 Difference]: Finished difference Result 87913 states and 136700 transitions. [2023-11-06 22:00:45,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:00:45,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 332 [2023-11-06 22:00:45,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:00:46,447 INFO L225 Difference]: With dead ends: 87913 [2023-11-06 22:00:46,447 INFO L226 Difference]: Without dead ends: 58674 [2023-11-06 22:00:46,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:00:46,810 INFO L413 NwaCegarLoop]: 6402 mSDtfsCounter, 6200 mSDsluCounter, 18986 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6204 SdHoareTripleChecker+Valid, 25388 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:00:46,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6204 Valid, 25388 Invalid, 43 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:00:46,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58674 states. [2023-11-06 22:00:52,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58674 to 58547. [2023-11-06 22:00:52,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58547 states, 34847 states have (on average 1.3618101988693432) internal successors, (47455), 35807 states have internal predecessors, (47455), 21675 states have call successors, (21675), 2009 states have call predecessors, (21675), 2024 states have return successors, (21946), 21226 states have call predecessors, (21946), 21674 states have call successors, (21946) [2023-11-06 22:00:53,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58547 states to 58547 states and 91076 transitions. [2023-11-06 22:00:53,411 INFO L78 Accepts]: Start accepts. Automaton has 58547 states and 91076 transitions. Word has length 332 [2023-11-06 22:00:53,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:00:53,412 INFO L495 AbstractCegarLoop]: Abstraction has 58547 states and 91076 transitions. [2023-11-06 22:00:53,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-11-06 22:00:53,413 INFO L276 IsEmpty]: Start isEmpty. Operand 58547 states and 91076 transitions. [2023-11-06 22:00:53,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2023-11-06 22:00:53,741 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:00:53,742 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:00:53,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:00:53,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-06 22:00:53,943 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:00:53,943 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:00:53,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1723406712, now seen corresponding path program 1 times [2023-11-06 22:00:53,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:00:53,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443534666] [2023-11-06 22:00:53,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:00:53,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:00:54,682 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:00:54,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1720312513] [2023-11-06 22:00:54,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:00:54,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:00:54,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:00:54,685 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:00:54,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:00:57,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:57,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 5981 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:00:57,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:00:57,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2023-11-06 22:00:57,894 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:00:57,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:00:57,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443534666] [2023-11-06 22:00:57,895 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:00:57,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720312513] [2023-11-06 22:00:57,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720312513] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:00:57,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:00:57,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:00:57,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668557401] [2023-11-06 22:00:57,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:00:57,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:00:57,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:00:57,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:00:57,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:00:57,899 INFO L87 Difference]: Start difference. First operand 58547 states and 91076 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-11-06 22:01:04,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:01:04,710 INFO L93 Difference]: Finished difference Result 175805 states and 273648 transitions. [2023-11-06 22:01:04,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:01:04,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 334 [2023-11-06 22:01:04,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:01:06,281 INFO L225 Difference]: With dead ends: 175805 [2023-11-06 22:01:06,282 INFO L226 Difference]: Without dead ends: 117298 [2023-11-06 22:01:06,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:01:06,592 INFO L413 NwaCegarLoop]: 6270 mSDtfsCounter, 6198 mSDsluCounter, 18722 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6202 SdHoareTripleChecker+Valid, 24992 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:01:06,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6202 Valid, 24992 Invalid, 43 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:01:06,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117298 states. [2023-11-06 22:01:16,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117298 to 117029. [2023-11-06 22:01:16,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117029 states, 69673 states have (on average 1.3618331347867898) internal successors, (94883), 71579 states have internal predecessors, (94883), 43303 states have call successors, (43303), 4021 states have call predecessors, (43303), 4052 states have return successors, (44094), 42414 states have call predecessors, (44094), 43302 states have call successors, (44094) [2023-11-06 22:01:18,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117029 states to 117029 states and 182280 transitions. [2023-11-06 22:01:18,885 INFO L78 Accepts]: Start accepts. Automaton has 117029 states and 182280 transitions. Word has length 334 [2023-11-06 22:01:18,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:01:18,886 INFO L495 AbstractCegarLoop]: Abstraction has 117029 states and 182280 transitions. [2023-11-06 22:01:18,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-11-06 22:01:18,887 INFO L276 IsEmpty]: Start isEmpty. Operand 117029 states and 182280 transitions. [2023-11-06 22:01:18,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2023-11-06 22:01:18,913 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:01:18,913 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:01:18,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:01:19,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:01:19,136 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:01:19,136 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:19,137 INFO L85 PathProgramCache]: Analyzing trace with hash -859617099, now seen corresponding path program 1 times [2023-11-06 22:01:19,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:01:19,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131344664] [2023-11-06 22:01:19,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:19,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:01:19,814 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:01:19,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1947703292] [2023-11-06 22:01:19,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:19,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:01:19,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:01:19,817 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:01:19,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb2248b-cbe5-4bd5-93fb-800df3bc3224/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:01:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:22,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 5987 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:01:22,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:01:23,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2023-11-06 22:01:23,413 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:01:23,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:01:23,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131344664] [2023-11-06 22:01:23,414 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:01:23,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947703292] [2023-11-06 22:01:23,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947703292] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:01:23,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:01:23,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:01:23,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239044528] [2023-11-06 22:01:23,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:01:23,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:01:23,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:01:23,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:01:23,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:01:23,420 INFO L87 Difference]: Start difference. First operand 117029 states and 182280 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26)