./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--ethernet--icplus--ipg.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9539c9-ce68-47ac-a89c-55237baf351d/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9539c9-ce68-47ac-a89c-55237baf351d/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9539c9-ce68-47ac-a89c-55237baf351d/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9539c9-ce68-47ac-a89c-55237baf351d/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9539c9-ce68-47ac-a89c-55237baf351d/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9539c9-ce68-47ac-a89c-55237baf351d/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 796dd9af134a9ffa7d65525922d125c3e75a459db15e4643a4f13ca47d95e4ce --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:15:17,302 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:15:17,431 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9539c9-ce68-47ac-a89c-55237baf351d/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:15:17,446 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:15:17,447 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:15:17,504 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:15:17,505 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:15:17,506 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:15:17,507 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:15:17,514 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:15:17,514 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:15:17,515 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:15:17,516 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:15:17,518 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:15:17,519 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:15:17,519 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:15:17,520 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:15:17,520 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:15:17,521 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:15:17,522 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:15:17,522 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:15:17,523 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:15:17,524 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:15:17,525 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:15:17,525 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:15:17,526 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:15:17,526 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:15:17,527 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:15:17,527 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:15:17,528 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:15:17,530 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:15:17,530 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:15:17,530 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:15:17,531 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:15:17,531 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:15:17,531 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:15:17,532 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:15:17,532 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:15:17,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:15:17,533 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:15:17,533 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:15:17,533 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:15:17,534 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_ce9539c9-ce68-47ac-a89c-55237baf351d/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9539c9-ce68-47ac-a89c-55237baf351d/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 796dd9af134a9ffa7d65525922d125c3e75a459db15e4643a4f13ca47d95e4ce [2023-11-19 05:15:17,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:15:17,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:15:17,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:15:17,937 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:15:17,937 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:15:17,939 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9539c9-ce68-47ac-a89c-55237baf351d/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2023-11-19 05:15:21,321 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:15:22,071 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:15:22,073 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9539c9-ce68-47ac-a89c-55237baf351d/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2023-11-19 05:15:22,126 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9539c9-ce68-47ac-a89c-55237baf351d/bin/utaipan-verify-t7M7D8N6sZ/data/2b492ede9/ced56138f6fc4ed583a3ad4b56de62fb/FLAG4d828d783 [2023-11-19 05:15:22,145 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9539c9-ce68-47ac-a89c-55237baf351d/bin/utaipan-verify-t7M7D8N6sZ/data/2b492ede9/ced56138f6fc4ed583a3ad4b56de62fb [2023-11-19 05:15:22,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:15:22,150 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:15:22,152 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:15:22,153 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:15:22,164 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:15:22,165 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:15:22" (1/1) ... [2023-11-19 05:15:22,166 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c35b632 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:22, skipping insertion in model container [2023-11-19 05:15:22,167 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:15:22" (1/1) ... [2023-11-19 05:15:22,361 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:15:24,925 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_ce9539c9-ce68-47ac-a89c-55237baf351d/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i[263179,263192] [2023-11-19 05:15:25,026 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:15:25,128 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:15:25,296 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5577] [2023-11-19 05:15:25,299 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5584] [2023-11-19 05:15:25,339 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)); [5925-5926] [2023-11-19 05:15:25,342 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)); [5954-5955] [2023-11-19 05:15:25,541 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7805] [2023-11-19 05:15:25,645 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_ce9539c9-ce68-47ac-a89c-55237baf351d/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i[263179,263192] [2023-11-19 05:15:25,670 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:15:25,959 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:15:25,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:25 WrapperNode [2023-11-19 05:15:25,960 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:15:25,961 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:15:25,961 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:15:25,962 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:15:25,970 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:25" (1/1) ... [2023-11-19 05:15:26,095 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:25" (1/1) ... [2023-11-19 05:15:26,273 INFO L138 Inliner]: procedures = 262, calls = 1371, calls flagged for inlining = 122, calls inlined = 117, statements flattened = 4033 [2023-11-19 05:15:26,274 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:15:26,275 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:15:26,275 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:15:26,275 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:15:26,287 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:25" (1/1) ... [2023-11-19 05:15:26,287 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:25" (1/1) ... [2023-11-19 05:15:26,317 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:25" (1/1) ... [2023-11-19 05:15:26,317 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:25" (1/1) ... [2023-11-19 05:15:26,451 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:25" (1/1) ... [2023-11-19 05:15:26,497 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:25" (1/1) ... [2023-11-19 05:15:26,533 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:25" (1/1) ... [2023-11-19 05:15:26,566 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:25" (1/1) ... [2023-11-19 05:15:26,615 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:15:26,619 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:15:26,619 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:15:26,619 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:15:26,620 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:25" (1/1) ... [2023-11-19 05:15:26,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:15:26,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9539c9-ce68-47ac-a89c-55237baf351d/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:15:26,679 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9539c9-ce68-47ac-a89c-55237baf351d/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:15:26,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce9539c9-ce68-47ac-a89c-55237baf351d/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:15:26,723 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2023-11-19 05:15:26,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2023-11-19 05:15:26,724 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-19 05:15:26,724 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-19 05:15:26,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 05:15:26,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 05:15:26,725 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-19 05:15:26,725 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-19 05:15:26,725 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2023-11-19 05:15:26,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2023-11-19 05:15:26,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 05:15:26,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 05:15:26,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 05:15:26,726 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 05:15:26,727 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset_after_host_error [2023-11-19 05:15:26,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset_after_host_error [2023-11-19 05:15:26,727 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-19 05:15:26,728 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-19 05:15:26,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-19 05:15:26,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-19 05:15:26,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 05:15:26,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 05:15:26,729 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-19 05:15:26,729 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-19 05:15:26,729 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2023-11-19 05:15:26,730 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2023-11-19 05:15:26,730 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 05:15:26,730 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 05:15:26,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 05:15:26,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 05:15:26,730 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2023-11-19 05:15:26,731 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2023-11-19 05:15:26,731 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-19 05:15:26,731 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-19 05:15:26,731 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2023-11-19 05:15:26,731 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2023-11-19 05:15:26,731 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-19 05:15:26,732 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-19 05:15:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-19 05:15:26,732 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-19 05:15:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2023-11-19 05:15:26,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2023-11-19 05:15:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2023-11-19 05:15:26,733 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2023-11-19 05:15:26,733 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:15:26,733 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:15:26,733 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-19 05:15:26,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-19 05:15:26,733 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 05:15:26,734 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 05:15:26,734 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-19 05:15:26,734 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-19 05:15:26,734 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2023-11-19 05:15:26,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2023-11-19 05:15:26,734 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2023-11-19 05:15:26,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2023-11-19 05:15:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2023-11-19 05:15:26,735 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2023-11-19 05:15:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:15:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-19 05:15:26,735 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-19 05:15:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2023-11-19 05:15:26,736 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2023-11-19 05:15:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2023-11-19 05:15:26,736 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2023-11-19 05:15:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:15:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-19 05:15:26,737 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-19 05:15:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-19 05:15:26,737 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-19 05:15:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-19 05:15:26,737 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-19 05:15:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-19 05:15:26,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-19 05:15:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2023-11-19 05:15:26,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2023-11-19 05:15:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-19 05:15:26,747 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-19 05:15:26,747 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2023-11-19 05:15:26,747 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2023-11-19 05:15:26,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:15:26,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:15:26,748 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 05:15:26,749 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 05:15:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2023-11-19 05:15:26,749 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2023-11-19 05:15:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-19 05:15:26,751 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-19 05:15:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 05:15:26,751 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 05:15:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 05:15:26,752 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 05:15:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-19 05:15:26,752 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-19 05:15:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 05:15:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-19 05:15:26,753 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-19 05:15:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 05:15:26,753 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 05:15:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2023-11-19 05:15:26,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2023-11-19 05:15:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2023-11-19 05:15:26,754 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2023-11-19 05:15:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2023-11-19 05:15:26,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2023-11-19 05:15:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 05:15:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioctl [2023-11-19 05:15:26,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioctl [2023-11-19 05:15:26,757 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-19 05:15:26,757 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-19 05:15:26,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:15:26,757 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 05:15:26,758 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 05:15:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-19 05:15:26,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-19 05:15:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 05:15:26,759 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 05:15:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 05:15:26,760 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 05:15:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-19 05:15:26,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-19 05:15:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2023-11-19 05:15:26,760 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2023-11-19 05:15:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-19 05:15:26,760 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-19 05:15:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:15:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-19 05:15:26,761 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-19 05:15:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2023-11-19 05:15:26,762 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2023-11-19 05:15:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2023-11-19 05:15:26,762 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2023-11-19 05:15:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 05:15:26,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 05:15:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2023-11-19 05:15:26,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2023-11-19 05:15:26,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-19 05:15:26,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-19 05:15:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2023-11-19 05:15:26,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2023-11-19 05:15:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:15:26,765 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2023-11-19 05:15:26,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2023-11-19 05:15:26,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-19 05:15:26,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-19 05:15:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2023-11-19 05:15:26,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2023-11-19 05:15:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:15:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 05:15:26,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 05:15:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:15:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-19 05:15:26,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-19 05:15:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-19 05:15:26,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-19 05:15:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2023-11-19 05:15:26,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2023-11-19 05:15:26,780 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-19 05:15:26,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-19 05:15:26,780 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2023-11-19 05:15:26,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2023-11-19 05:15:26,780 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-19 05:15:26,780 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-19 05:15:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-19 05:15:26,781 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-19 05:15:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2023-11-19 05:15:26,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2023-11-19 05:15:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-11-19 05:15:26,782 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-11-19 05:15:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2023-11-19 05:15:26,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2023-11-19 05:15:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2023-11-19 05:15:26,783 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2023-11-19 05:15:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_change_mtu [2023-11-19 05:15:26,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_change_mtu [2023-11-19 05:15:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-19 05:15:26,784 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-19 05:15:26,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:15:26,784 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2023-11-19 05:15:26,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2023-11-19 05:15:26,784 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2023-11-19 05:15:26,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2023-11-19 05:15:26,784 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-19 05:15:26,785 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-19 05:15:26,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:15:26,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:15:27,620 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:15:27,625 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:15:29,115 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 05:15:34,970 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:15:37,948 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:15:37,948 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 05:15:37,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:15:37 BoogieIcfgContainer [2023-11-19 05:15:37,966 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:15:37,972 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:15:37,972 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:15:37,975 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:15:37,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:15:22" (1/3) ... [2023-11-19 05:15:37,978 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef1c8a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:15:37, skipping insertion in model container [2023-11-19 05:15:37,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:25" (2/3) ... [2023-11-19 05:15:37,979 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef1c8a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:15:37, skipping insertion in model container [2023-11-19 05:15:37,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:15:37" (3/3) ... [2023-11-19 05:15:37,980 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2023-11-19 05:15:38,005 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:15:38,006 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:15:38,125 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:15:38,135 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@194b940b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:15:38,135 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:15:38,149 INFO L276 IsEmpty]: Start isEmpty. Operand has 1158 states, 695 states have (on average 1.306474820143885) internal successors, (908), 730 states have internal predecessors, (908), 379 states have call successors, (379), 85 states have call predecessors, (379), 84 states have return successors, (371), 369 states have call predecessors, (371), 371 states have call successors, (371) [2023-11-19 05:15:38,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-19 05:15:38,190 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:15:38,191 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:15:38,192 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:15:38,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:15:38,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1510316296, now seen corresponding path program 1 times [2023-11-19 05:15:38,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:15:38,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876171453] [2023-11-19 05:15:38,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:15:38,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:15:38,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:15:39,702 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-19 05:15:39,703 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:15:39,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876171453] [2023-11-19 05:15:39,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876171453] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:15:39,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:15:39,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:15:39,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022344009] [2023-11-19 05:15:39,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:15:39,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:15:39,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:15:39,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:15:39,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:15:39,782 INFO L87 Difference]: Start difference. First operand has 1158 states, 695 states have (on average 1.306474820143885) internal successors, (908), 730 states have internal predecessors, (908), 379 states have call successors, (379), 85 states have call predecessors, (379), 84 states have return successors, (371), 369 states have call predecessors, (371), 371 states have call successors, (371) Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-19 05:15:43,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:15:45,670 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 [] [2023-11-19 05:15:47,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:15:47,965 INFO L93 Difference]: Finished difference Result 3391 states and 4917 transitions. [2023-11-19 05:15:47,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 05:15:47,968 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 93 [2023-11-19 05:15:47,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:15:48,012 INFO L225 Difference]: With dead ends: 3391 [2023-11-19 05:15:48,013 INFO L226 Difference]: Without dead ends: 2223 [2023-11-19 05:15:48,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:15:48,034 INFO L413 NwaCegarLoop]: 1462 mSDtfsCounter, 1562 mSDsluCounter, 4347 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1566 SdHoareTripleChecker+Valid, 5809 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2023-11-19 05:15:48,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1566 Valid, 5809 Invalid, 810 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 806 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2023-11-19 05:15:48,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2223 states. [2023-11-19 05:15:48,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2223 to 2209. [2023-11-19 05:15:48,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2209 states, 1333 states have (on average 1.2918229557389347) internal successors, (1722), 1384 states have internal predecessors, (1722), 711 states have call successors, (711), 166 states have call predecessors, (711), 164 states have return successors, (712), 700 states have call predecessors, (712), 710 states have call successors, (712) [2023-11-19 05:15:48,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 3145 transitions. [2023-11-19 05:15:48,302 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 3145 transitions. Word has length 93 [2023-11-19 05:15:48,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:15:48,303 INFO L495 AbstractCegarLoop]: Abstraction has 2209 states and 3145 transitions. [2023-11-19 05:15:48,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-19 05:15:48,304 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 3145 transitions. [2023-11-19 05:15:48,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-19 05:15:48,314 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:15:48,314 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:15:48,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:15:48,315 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:15:48,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:15:48,316 INFO L85 PathProgramCache]: Analyzing trace with hash 869461237, now seen corresponding path program 1 times [2023-11-19 05:15:48,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:15:48,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387627018] [2023-11-19 05:15:48,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:15:48,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:15:48,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:15:49,077 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-19 05:15:49,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:15:49,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387627018] [2023-11-19 05:15:49,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387627018] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:15:49,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:15:49,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:15:49,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753965629] [2023-11-19 05:15:49,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:15:49,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:15:49,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:15:49,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:15:49,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:15:49,096 INFO L87 Difference]: Start difference. First operand 2209 states and 3145 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-19 05:15:54,508 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 [] [2023-11-19 05:15:56,517 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 [] [2023-11-19 05:15:59,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:15:59,255 INFO L93 Difference]: Finished difference Result 4962 states and 7040 transitions. [2023-11-19 05:15:59,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 05:15:59,256 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 95 [2023-11-19 05:15:59,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:15:59,291 INFO L225 Difference]: With dead ends: 4962 [2023-11-19 05:15:59,292 INFO L226 Difference]: Without dead ends: 3302 [2023-11-19 05:15:59,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:15:59,305 INFO L413 NwaCegarLoop]: 1598 mSDtfsCounter, 1533 mSDsluCounter, 4595 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1537 SdHoareTripleChecker+Valid, 6193 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2023-11-19 05:15:59,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1537 Valid, 6193 Invalid, 838 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 833 Invalid, 2 Unknown, 0 Unchecked, 9.8s Time] [2023-11-19 05:15:59,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3302 states. [2023-11-19 05:15:59,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3302 to 3283. [2023-11-19 05:15:59,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3283 states, 1985 states have (on average 1.292191435768262) internal successors, (2565), 2058 states have internal predecessors, (2565), 1052 states have call successors, (1052), 248 states have call predecessors, (1052), 245 states have return successors, (1055), 1038 states have call predecessors, (1055), 1051 states have call successors, (1055) [2023-11-19 05:15:59,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3283 states to 3283 states and 4672 transitions. [2023-11-19 05:15:59,638 INFO L78 Accepts]: Start accepts. Automaton has 3283 states and 4672 transitions. Word has length 95 [2023-11-19 05:15:59,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:15:59,641 INFO L495 AbstractCegarLoop]: Abstraction has 3283 states and 4672 transitions. [2023-11-19 05:15:59,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-19 05:15:59,641 INFO L276 IsEmpty]: Start isEmpty. Operand 3283 states and 4672 transitions. [2023-11-19 05:15:59,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-19 05:15:59,646 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:15:59,647 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:15:59,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:15:59,647 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:15:59,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:15:59,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1740190223, now seen corresponding path program 1 times [2023-11-19 05:15:59,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:15:59,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260942402] [2023-11-19 05:15:59,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:15:59,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:15:59,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:16:00,180 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-19 05:16:00,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:16:00,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260942402] [2023-11-19 05:16:00,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260942402] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:16:00,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:16:00,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:16:00,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346999895] [2023-11-19 05:16:00,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:16:00,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:16:00,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:16:00,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:16:00,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:16:00,185 INFO L87 Difference]: Start difference. First operand 3283 states and 4672 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-19 05:16:03,958 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 [] [2023-11-19 05:16:07,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []