./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-32_7a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_665f5aa0-aa27-4b6e-8b67-dc8db2fa2a6e/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_665f5aa0-aa27-4b6e-8b67-dc8db2fa2a6e/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_665f5aa0-aa27-4b6e-8b67-dc8db2fa2a6e/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_665f5aa0-aa27-4b6e-8b67-dc8db2fa2a6e/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_665f5aa0-aa27-4b6e-8b67-dc8db2fa2a6e/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_665f5aa0-aa27-4b6e-8b67-dc8db2fa2a6e/bin/utaipan-I9t0OCRTmS --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 159d68084b5403f80e4b7540fecb70dab3afa3eb4f2cbbe3cc657fb12a0df7e0 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 06:40:21,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:40:21,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:40:21,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:40:21,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:40:21,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:40:21,579 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:40:21,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:40:21,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:40:21,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:40:21,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:40:21,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:40:21,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:40:21,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:40:21,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:40:21,605 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:40:21,606 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:40:21,607 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:40:21,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:40:21,615 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:40:21,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:40:21,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:40:21,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:40:21,622 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:40:21,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:40:21,628 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:40:21,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:40:21,630 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:40:21,630 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:40:21,631 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:40:21,632 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:40:21,633 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:40:21,635 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:40:21,636 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:40:21,637 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:40:21,638 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:40:21,638 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:40:21,638 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:40:21,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:40:21,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:40:21,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:40:21,641 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_665f5aa0-aa27-4b6e-8b67-dc8db2fa2a6e/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 06:40:21,681 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:40:21,684 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:40:21,685 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:40:21,685 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:40:21,686 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:40:21,687 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:40:21,687 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:40:21,687 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:40:21,687 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:40:21,687 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:40:21,689 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:40:21,689 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:40:21,689 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:40:21,689 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:40:21,689 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:40:21,690 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:40:21,690 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:40:21,690 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:40:21,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:40:21,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:40:21,691 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:40:21,691 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:40:21,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:40:21,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:40:21,692 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:40:21,694 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:40:21,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:40:21,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:40:21,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:40:21,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:40:21,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:40:21,695 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:40:21,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:40:21,696 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:40:21,696 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:40:21,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:40:21,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:40:21,696 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:40:21,697 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_665f5aa0-aa27-4b6e-8b67-dc8db2fa2a6e/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_665f5aa0-aa27-4b6e-8b67-dc8db2fa2a6e/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 159d68084b5403f80e4b7540fecb70dab3afa3eb4f2cbbe3cc657fb12a0df7e0 [2022-11-19 06:40:21,984 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:40:22,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:40:22,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:40:22,032 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:40:22,033 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:40:22,034 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_665f5aa0-aa27-4b6e-8b67-dc8db2fa2a6e/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i [2022-11-19 06:40:22,108 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_665f5aa0-aa27-4b6e-8b67-dc8db2fa2a6e/bin/utaipan-I9t0OCRTmS/data/75fd165b8/acc96561eeb84fb48080eb886cd68dd3/FLAG7ce093427 [2022-11-19 06:40:23,249 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:40:23,249 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_665f5aa0-aa27-4b6e-8b67-dc8db2fa2a6e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i [2022-11-19 06:40:23,317 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_665f5aa0-aa27-4b6e-8b67-dc8db2fa2a6e/bin/utaipan-I9t0OCRTmS/data/75fd165b8/acc96561eeb84fb48080eb886cd68dd3/FLAG7ce093427 [2022-11-19 06:40:23,493 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_665f5aa0-aa27-4b6e-8b67-dc8db2fa2a6e/bin/utaipan-I9t0OCRTmS/data/75fd165b8/acc96561eeb84fb48080eb886cd68dd3 [2022-11-19 06:40:23,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:40:23,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:40:23,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:40:23,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:40:23,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:40:23,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:40:23" (1/1) ... [2022-11-19 06:40:23,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32c48fbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:40:23, skipping insertion in model container [2022-11-19 06:40:23,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:40:23" (1/1) ... [2022-11-19 06:40:23,519 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:40:23,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:40:29,844 WARN L234 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_665f5aa0-aa27-4b6e-8b67-dc8db2fa2a6e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i[548244,548257] [2022-11-19 06:40:30,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:40:30,353 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:40:31,107 WARN L234 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_665f5aa0-aa27-4b6e-8b67-dc8db2fa2a6e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i[548244,548257] [2022-11-19 06:40:31,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:40:31,612 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:40:31,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:40:31 WrapperNode [2022-11-19 06:40:31,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:40:31,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:40:31,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:40:31,614 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:40:31,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:40:31" (1/1) ... [2022-11-19 06:40:31,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:40:31" (1/1) ... [2022-11-19 06:40:32,485 INFO L138 Inliner]: procedures = 861, calls = 10423, calls flagged for inlining = 291, calls inlined = 261, statements flattened = 17097 [2022-11-19 06:40:32,486 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:40:32,487 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:40:32,487 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:40:32,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:40:32,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:40:31" (1/1) ... [2022-11-19 06:40:32,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:40:31" (1/1) ... [2022-11-19 06:40:32,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:40:31" (1/1) ... [2022-11-19 06:40:32,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:40:31" (1/1) ... [2022-11-19 06:40:33,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:40:31" (1/1) ... [2022-11-19 06:40:33,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:40:31" (1/1) ... [2022-11-19 06:40:33,701 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:40:31" (1/1) ... [2022-11-19 06:40:33,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:40:31" (1/1) ... [2022-11-19 06:40:33,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:40:33,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:40:33,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:40:33,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:40:33,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:40:31" (1/1) ... [2022-11-19 06:40:33,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:40:33,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_665f5aa0-aa27-4b6e-8b67-dc8db2fa2a6e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:40:33,984 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_665f5aa0-aa27-4b6e-8b67-dc8db2fa2a6e/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:40:34,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_665f5aa0-aa27-4b6e-8b67-dc8db2fa2a6e/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:40:34,108 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-19 06:40:34,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_5 [2022-11-19 06:40:34,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_5 [2022-11-19 06:40:34,108 INFO L130 BoogieDeclarations]: Found specification of procedure integrated_lvds_disable [2022-11-19 06:40:34,108 INFO L138 BoogieDeclarations]: Found implementation of procedure integrated_lvds_disable [2022-11-19 06:40:34,108 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lvds_identify_vt1636 [2022-11-19 06:40:34,109 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lvds_identify_vt1636 [2022-11-19 06:40:34,109 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_remove [2022-11-19 06:40:34,109 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_remove [2022-11-19 06:40:34,109 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2022-11-19 06:40:34,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2022-11-19 06:40:34,109 INFO L130 BoogieDeclarations]: Found specification of procedure via_read_reg [2022-11-19 06:40:34,109 INFO L138 BoogieDeclarations]: Found implementation of procedure via_read_reg [2022-11-19 06:40:34,110 INFO L130 BoogieDeclarations]: Found specification of procedure write_dac_reg [2022-11-19 06:40:34,110 INFO L138 BoogieDeclarations]: Found implementation of procedure write_dac_reg [2022-11-19 06:40:34,110 INFO L130 BoogieDeclarations]: Found specification of procedure vx855_encode_pll [2022-11-19 06:40:34,110 INFO L138 BoogieDeclarations]: Found implementation of procedure vx855_encode_pll [2022-11-19 06:40:34,110 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_resume [2022-11-19 06:40:34,110 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_resume [2022-11-19 06:40:34,110 INFO L130 BoogieDeclarations]: Found specification of procedure via_pci_teardown_mmio [2022-11-19 06:40:34,110 INFO L138 BoogieDeclarations]: Found implementation of procedure via_pci_teardown_mmio [2022-11-19 06:40:34,111 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 06:40:34,111 INFO L130 BoogieDeclarations]: Found specification of procedure via_write_misc_reg_mask [2022-11-19 06:40:34,111 INFO L138 BoogieDeclarations]: Found implementation of procedure via_write_misc_reg_mask [2022-11-19 06:40:34,111 INFO L130 BoogieDeclarations]: Found specification of procedure framebuffer_alloc [2022-11-19 06:40:34,111 INFO L138 BoogieDeclarations]: Found implementation of procedure framebuffer_alloc [2022-11-19 06:40:34,111 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_check_var [2022-11-19 06:40:34,111 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_check_var [2022-11-19 06:40:34,111 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvp1_proc_write [2022-11-19 06:40:34,112 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvp1_proc_write [2022-11-19 06:40:34,112 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-19 06:40:34,112 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-19 06:40:34,112 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_readbyte [2022-11-19 06:40:34,112 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_readbyte [2022-11-19 06:40:34,112 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_secondary_timing [2022-11-19 06:40:34,112 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_secondary_timing [2022-11-19 06:40:34,120 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-19 06:40:34,121 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-19 06:40:34,121 INFO L130 BoogieDeclarations]: Found specification of procedure set_dpa_vt1636 [2022-11-19 06:40:34,121 INFO L138 BoogieDeclarations]: Found implementation of procedure set_dpa_vt1636 [2022-11-19 06:40:34,121 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_load_FIFO_reg [2022-11-19 06:40:34,121 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_load_FIFO_reg [2022-11-19 06:40:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure __platform_driver_register [2022-11-19 06:40:34,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __platform_driver_register [2022-11-19 06:40:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-19 06:40:34,122 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-19 06:40:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-11-19 06:40:34,122 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-11-19 06:40:34,123 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_disable_lvds_vt1636 [2022-11-19 06:40:34,124 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_disable_lvds_vt1636 [2022-11-19 06:40:34,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 06:40:34,124 INFO L130 BoogieDeclarations]: Found specification of procedure get_clk_range_index [2022-11-19 06:40:34,124 INFO L138 BoogieDeclarations]: Found implementation of procedure get_clk_range_index [2022-11-19 06:40:34,124 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_enable [2022-11-19 06:40:34,124 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_enable [2022-11-19 06:40:34,125 INFO L130 BoogieDeclarations]: Found specification of procedure cfb_copyarea [2022-11-19 06:40:34,125 INFO L138 BoogieDeclarations]: Found implementation of procedure cfb_copyarea [2022-11-19 06:40:34,125 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 06:40:34,125 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 06:40:34,126 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-19 06:40:34,126 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-19 06:40:34,126 INFO L130 BoogieDeclarations]: Found specification of procedure get_var_refresh [2022-11-19 06:40:34,126 INFO L138 BoogieDeclarations]: Found implementation of procedure get_var_refresh [2022-11-19 06:40:34,126 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_unlock_crt [2022-11-19 06:40:34,126 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_unlock_crt [2022-11-19 06:40:34,127 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_load_fetch_count_reg [2022-11-19 06:40:34,127 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_load_fetch_count_reg [2022-11-19 06:40:34,127 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtou8_from_user [2022-11-19 06:40:34,127 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtou8_from_user [2022-11-19 06:40:34,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-19 06:40:34,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-19 06:40:34,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 06:40:34,128 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_reset_engine [2022-11-19 06:40:34,128 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_reset_engine [2022-11-19 06:40:34,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:40:34,129 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 06:40:34,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 06:40:34,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 06:40:34,129 INFO L130 BoogieDeclarations]: Found specification of procedure get_dvi_devices [2022-11-19 06:40:34,129 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dvi_devices [2022-11-19 06:40:34,129 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_primary_timing [2022-11-19 06:40:34,129 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_primary_timing [2022-11-19 06:40:34,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_viafb_pm_hooks_lock [2022-11-19 06:40:34,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_viafb_pm_hooks_lock [2022-11-19 06:40:34,130 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_load_reg [2022-11-19 06:40:34,130 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_load_reg [2022-11-19 06:40:34,131 INFO L130 BoogieDeclarations]: Found specification of procedure register_framebuffer [2022-11-19 06:40:34,131 INFO L138 BoogieDeclarations]: Found implementation of procedure register_framebuffer [2022-11-19 06:40:34,131 INFO L130 BoogieDeclarations]: Found specification of procedure set_engine_pll_encoded [2022-11-19 06:40:34,132 INFO L138 BoogieDeclarations]: Found implementation of procedure set_engine_pll_encoded [2022-11-19 06:40:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:40:34,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:40:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_sync_polarity [2022-11-19 06:40:34,133 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_sync_polarity [2022-11-19 06:40:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-19 06:40:34,133 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-19 06:40:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_suspend [2022-11-19 06:40:34,133 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_suspend [2022-11-19 06:40:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_suspend [2022-11-19 06:40:34,134 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_suspend [2022-11-19 06:40:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 06:40:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure framebuffer_release [2022-11-19 06:40:34,134 INFO L138 BoogieDeclarations]: Found implementation of procedure framebuffer_release [2022-11-19 06:40:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure parse_mode [2022-11-19 06:40:34,134 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_mode [2022-11-19 06:40:34,135 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_state [2022-11-19 06:40:34,135 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_state [2022-11-19 06:40:34,135 INFO L130 BoogieDeclarations]: Found specification of procedure get_lcd_devices [2022-11-19 06:40:34,135 INFO L138 BoogieDeclarations]: Found implementation of procedure get_lcd_devices [2022-11-19 06:40:34,136 INFO L130 BoogieDeclarations]: Found specification of procedure probe___0 [2022-11-19 06:40:34,136 INFO L138 BoogieDeclarations]: Found implementation of procedure probe___0 [2022-11-19 06:40:34,139 INFO L130 BoogieDeclarations]: Found specification of procedure probe___1 [2022-11-19 06:40:34,139 INFO L138 BoogieDeclarations]: Found implementation of procedure probe___1 [2022-11-19 06:40:34,139 INFO L130 BoogieDeclarations]: Found specification of procedure probe___3 [2022-11-19 06:40:34,139 INFO L138 BoogieDeclarations]: Found implementation of procedure probe___3 [2022-11-19 06:40:34,139 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_source [2022-11-19 06:40:34,140 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_source [2022-11-19 06:40:34,141 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-19 06:40:34,141 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-19 06:40:34,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_8 [2022-11-19 06:40:34,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_8 [2022-11-19 06:40:34,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-19 06:40:34,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-19 06:40:34,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_3 [2022-11-19 06:40:34,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_3 [2022-11-19 06:40:34,148 INFO L130 BoogieDeclarations]: Found specification of procedure via_write_reg_mask [2022-11-19 06:40:34,148 INFO L138 BoogieDeclarations]: Found implementation of procedure via_write_reg_mask [2022-11-19 06:40:34,148 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~structbegin~~u16~0~u8~0~u8~0~structend~~TO~VOID [2022-11-19 06:40:34,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~structbegin~~u16~0~u8~0~u8~0~structend~~TO~VOID [2022-11-19 06:40:34,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 06:40:34,149 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 06:40:34,149 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-19 06:40:34,149 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-19 06:40:34,149 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_resume [2022-11-19 06:40:34,149 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_resume [2022-11-19 06:40:34,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 06:40:34,149 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 06:40:34,149 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 06:40:34,149 INFO L130 BoogieDeclarations]: Found specification of procedure cle266_encode_pll [2022-11-19 06:40:34,150 INFO L138 BoogieDeclarations]: Found implementation of procedure cle266_encode_pll [2022-11-19 06:40:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 06:40:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~~u32~0~X~~u8~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u8~0~TO~int [2022-11-19 06:40:34,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~~u32~0~X~~u8~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u32~0~X~~u8~0~TO~int [2022-11-19 06:40:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-19 06:40:34,150 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-19 06:40:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-19 06:40:34,150 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-19 06:40:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure get_best_mode [2022-11-19 06:40:34,151 INFO L138 BoogieDeclarations]: Found implementation of procedure get_best_mode [2022-11-19 06:40:34,151 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_probe [2022-11-19 06:40:34,151 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_probe [2022-11-19 06:40:34,151 INFO L130 BoogieDeclarations]: Found specification of procedure get_pll_config [2022-11-19 06:40:34,151 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pll_config [2022-11-19 06:40:34,151 INFO L130 BoogieDeclarations]: Found specification of procedure parse_port [2022-11-19 06:40:34,151 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_port [2022-11-19 06:40:34,151 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_update_fix [2022-11-19 06:40:34,151 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_update_fix [2022-11-19 06:40:34,152 INFO L130 BoogieDeclarations]: Found specification of procedure cfb_fillrect [2022-11-19 06:40:34,152 INFO L138 BoogieDeclarations]: Found implementation of procedure cfb_fillrect [2022-11-19 06:40:34,152 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_setup_fixinfo [2022-11-19 06:40:34,152 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_setup_fixinfo [2022-11-19 06:40:34,152 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_sense [2022-11-19 06:40:34,152 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_sense [2022-11-19 06:40:34,152 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_iga_path [2022-11-19 06:40:34,152 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_iga_path [2022-11-19 06:40:34,152 INFO L130 BoogieDeclarations]: Found specification of procedure check_tmds_chip [2022-11-19 06:40:34,153 INFO L138 BoogieDeclarations]: Found implementation of procedure check_tmds_chip [2022-11-19 06:40:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_pm_unregister [2022-11-19 06:40:34,153 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_pm_unregister [2022-11-19 06:40:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 06:40:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2022-11-19 06:40:34,153 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2022-11-19 06:40:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 06:40:34,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 06:40:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dfph_proc_write [2022-11-19 06:40:34,154 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dfph_proc_write [2022-11-19 06:40:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_disable [2022-11-19 06:40:34,154 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_disable [2022-11-19 06:40:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure k800_encode_pll [2022-11-19 06:40:34,154 INFO L138 BoogieDeclarations]: Found implementation of procedure k800_encode_pll [2022-11-19 06:40:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-19 06:40:34,154 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-19 06:40:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lcd_enable [2022-11-19 06:40:34,154 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lcd_enable [2022-11-19 06:40:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lcd_set_mode [2022-11-19 06:40:34,155 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lcd_set_mode [2022-11-19 06:40:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-19 06:40:34,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-19 06:40:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_pan_display [2022-11-19 06:40:34,155 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_pan_display [2022-11-19 06:40:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_5 [2022-11-19 06:40:34,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_5 [2022-11-19 06:40:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure via_fb_pci_remove [2022-11-19 06:40:34,156 INFO L138 BoogieDeclarations]: Found implementation of procedure via_fb_pci_remove [2022-11-19 06:40:34,156 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_bus_free [2022-11-19 06:40:34,156 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_bus_free [2022-11-19 06:40:34,156 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_primary_address [2022-11-19 06:40:34,156 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_primary_address [2022-11-19 06:40:34,156 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-19 06:40:34,156 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-19 06:40:34,156 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_init_lvds_output_interface [2022-11-19 06:40:34,156 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_init_lvds_output_interface [2022-11-19 06:40:34,157 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_bpp [2022-11-19 06:40:34,157 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_bpp [2022-11-19 06:40:34,157 INFO L130 BoogieDeclarations]: Found specification of procedure set_source_common [2022-11-19 06:40:34,157 INFO L138 BoogieDeclarations]: Found implementation of procedure set_source_common [2022-11-19 06:40:34,157 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_find_i2c_adapter [2022-11-19 06:40:34,157 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_find_i2c_adapter [2022-11-19 06:40:34,157 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_iga1_odev_proc_write [2022-11-19 06:40:34,157 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_iga1_odev_proc_write [2022-11-19 06:40:34,157 INFO L130 BoogieDeclarations]: Found specification of procedure integrated_lvds_enable [2022-11-19 06:40:34,158 INFO L138 BoogieDeclarations]: Found implementation of procedure integrated_lvds_enable [2022-11-19 06:40:34,158 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtou8 [2022-11-19 06:40:34,158 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtou8 [2022-11-19 06:40:34,158 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_par [2022-11-19 06:40:34,158 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_par [2022-11-19 06:40:34,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 06:40:34,158 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 06:40:34,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 06:40:34,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 06:40:34,159 INFO L130 BoogieDeclarations]: Found specification of procedure get_sync [2022-11-19 06:40:34,159 INFO L138 BoogieDeclarations]: Found implementation of procedure get_sync [2022-11-19 06:40:34,159 INFO L130 BoogieDeclarations]: Found specification of procedure get_pll_output_frequency [2022-11-19 06:40:34,159 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pll_output_frequency [2022-11-19 06:40:34,159 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_iga2_odev_proc_write [2022-11-19 06:40:34,159 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_iga2_odev_proc_write [2022-11-19 06:40:34,159 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~~bool~0~TO~VOID [2022-11-19 06:40:34,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~~bool~0~TO~VOID [2022-11-19 06:40:34,160 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_remove [2022-11-19 06:40:34,160 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_remove [2022-11-19 06:40:34,160 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 06:40:34,160 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 06:40:34,160 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_enable_lvds_vt1636 [2022-11-19 06:40:34,160 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_enable_lvds_vt1636 [2022-11-19 06:40:34,160 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lock_crt [2022-11-19 06:40:34,160 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lock_crt [2022-11-19 06:40:34,160 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-11-19 06:40:34,162 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-11-19 06:40:34,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 06:40:34,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 06:40:34,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 06:40:34,166 INFO L130 BoogieDeclarations]: Found specification of procedure set_clock_source_common [2022-11-19 06:40:34,166 INFO L138 BoogieDeclarations]: Found implementation of procedure set_clock_source_common [2022-11-19 06:40:34,166 INFO L130 BoogieDeclarations]: Found specification of procedure k800_set_primary_pll_encoded [2022-11-19 06:40:34,166 INFO L138 BoogieDeclarations]: Found implementation of procedure k800_set_primary_pll_encoded [2022-11-19 06:40:34,166 INFO L130 BoogieDeclarations]: Found specification of procedure set_color_register [2022-11-19 06:40:34,166 INFO L138 BoogieDeclarations]: Found implementation of procedure set_color_register [2022-11-19 06:40:34,168 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-11-19 06:40:34,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-11-19 06:40:34,168 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-19 06:40:34,168 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-19 06:40:34,168 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_get_best_mode [2022-11-19 06:40:34,168 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_get_best_mode [2022-11-19 06:40:34,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 06:40:34,168 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_i2c_write_mask_lvds [2022-11-19 06:40:34,168 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_i2c_write_mask_lvds [2022-11-19 06:40:34,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_viafb_pm_hooks_lock [2022-11-19 06:40:34,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_viafb_pm_hooks_lock [2022-11-19 06:40:34,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 06:40:34,169 INFO L130 BoogieDeclarations]: Found specification of procedure tmds_register_write [2022-11-19 06:40:34,169 INFO L138 BoogieDeclarations]: Found implementation of procedure tmds_register_write [2022-11-19 06:40:34,169 INFO L130 BoogieDeclarations]: Found specification of procedure tmds_register_read [2022-11-19 06:40:34,169 INFO L138 BoogieDeclarations]: Found implementation of procedure tmds_register_read [2022-11-19 06:40:34,169 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_mmio_read [2022-11-19 06:40:34,169 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_mmio_read [2022-11-19 06:40:34,169 INFO L130 BoogieDeclarations]: Found specification of procedure cfb_imageblit [2022-11-19 06:40:34,170 INFO L138 BoogieDeclarations]: Found implementation of procedure cfb_imageblit [2022-11-19 06:40:34,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 06:40:34,170 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 06:40:34,170 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-19 06:40:34,170 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-19 06:40:34,170 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-11-19 06:40:34,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-11-19 06:40:34,170 INFO L130 BoogieDeclarations]: Found specification of procedure proc_create [2022-11-19 06:40:34,170 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_create [2022-11-19 06:40:34,171 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_pm_register [2022-11-19 06:40:34,171 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_pm_register [2022-11-19 06:40:34,171 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2022-11-19 06:40:34,171 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2022-11-19 06:40:34,171 INFO L130 BoogieDeclarations]: Found specification of procedure fb_get_color_depth [2022-11-19 06:40:34,171 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_get_color_depth [2022-11-19 06:40:34,171 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_lcd_disable [2022-11-19 06:40:34,171 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_lcd_disable [2022-11-19 06:40:34,171 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 06:40:34,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 06:40:34,172 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_vt1636_proc_write [2022-11-19 06:40:34,172 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_vt1636_proc_write [2022-11-19 06:40:34,172 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 06:40:34,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 06:40:34,172 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_i2c_writebyte [2022-11-19 06:40:34,172 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_i2c_writebyte [2022-11-19 06:40:34,172 INFO L130 BoogieDeclarations]: Found specification of procedure via_gpio_set [2022-11-19 06:40:34,172 INFO L138 BoogieDeclarations]: Found implementation of procedure via_gpio_set [2022-11-19 06:40:34,172 INFO L130 BoogieDeclarations]: Found specification of procedure var_to_timing [2022-11-19 06:40:34,173 INFO L138 BoogieDeclarations]: Found implementation of procedure var_to_timing [2022-11-19 06:40:34,173 INFO L130 BoogieDeclarations]: Found specification of procedure via_set_secondary_address [2022-11-19 06:40:34,173 INFO L138 BoogieDeclarations]: Found implementation of procedure via_set_secondary_address [2022-11-19 06:40:34,173 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-19 06:40:34,173 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-19 06:40:34,173 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_read [2022-11-19 06:40:34,173 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_read [2022-11-19 06:40:34,173 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_enable [2022-11-19 06:40:34,173 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_enable [2022-11-19 06:40:34,173 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_probe [2022-11-19 06:40:34,174 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_probe [2022-11-19 06:40:34,174 INFO L130 BoogieDeclarations]: Found specification of procedure odev_update [2022-11-19 06:40:34,174 INFO L138 BoogieDeclarations]: Found implementation of procedure odev_update [2022-11-19 06:40:34,174 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_i2c_read_lvds [2022-11-19 06:40:34,174 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_i2c_read_lvds [2022-11-19 06:40:34,174 INFO L130 BoogieDeclarations]: Found specification of procedure via_pci_remove [2022-11-19 06:40:34,174 INFO L138 BoogieDeclarations]: Found implementation of procedure via_pci_remove [2022-11-19 06:40:34,174 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-11-19 06:40:34,174 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-11-19 06:40:34,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 06:40:34,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 06:40:34,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 06:40:34,175 INFO L130 BoogieDeclarations]: Found specification of procedure set_lcd_output_path [2022-11-19 06:40:34,175 INFO L138 BoogieDeclarations]: Found implementation of procedure set_lcd_output_path [2022-11-19 06:40:34,175 INFO L130 BoogieDeclarations]: Found specification of procedure via_teardown_subdevs [2022-11-19 06:40:34,175 INFO L138 BoogieDeclarations]: Found implementation of procedure via_teardown_subdevs [2022-11-19 06:40:34,175 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-11-19 06:40:34,175 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-11-19 06:40:34,175 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_fill_var_timing_info [2022-11-19 06:40:34,175 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_fill_var_timing_info [2022-11-19 06:40:34,176 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2022-11-19 06:40:34,176 INFO L138 BoogieDeclarations]: Found implementation of procedure strsep [2022-11-19 06:40:34,176 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 06:40:34,176 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 06:40:34,176 INFO L130 BoogieDeclarations]: Found specification of procedure via_resume [2022-11-19 06:40:34,176 INFO L138 BoogieDeclarations]: Found implementation of procedure via_resume [2022-11-19 06:40:34,176 INFO L130 BoogieDeclarations]: Found specification of procedure proc_mkdir [2022-11-19 06:40:34,176 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_mkdir [2022-11-19 06:40:34,176 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_write_regx [2022-11-19 06:40:34,177 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_write_regx [2022-11-19 06:40:34,177 INFO L130 BoogieDeclarations]: Found specification of procedure fb_dealloc_cmap [2022-11-19 06:40:34,177 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_dealloc_cmap [2022-11-19 06:40:34,177 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_free [2022-11-19 06:40:34,177 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_free [2022-11-19 06:40:34,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 06:40:34,177 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_add [2022-11-19 06:40:34,177 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_add [2022-11-19 06:40:34,177 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_suspend [2022-11-19 06:40:34,177 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_suspend [2022-11-19 06:40:34,178 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_sync [2022-11-19 06:40:34,178 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_sync [2022-11-19 06:40:34,178 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_gpio_probe [2022-11-19 06:40:34,178 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_gpio_probe [2022-11-19 06:40:34,178 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_framebuffer [2022-11-19 06:40:34,178 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_framebuffer [2022-11-19 06:40:34,178 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvp0_proc_write [2022-11-19 06:40:34,178 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvp0_proc_write [2022-11-19 06:40:34,178 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~u8~0~TO~VOID [2022-11-19 06:40:34,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~u8~0~TO~VOID [2022-11-19 06:40:34,179 INFO L130 BoogieDeclarations]: Found specification of procedure fb_destroy_modedb [2022-11-19 06:40:34,179 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_destroy_modedb [2022-11-19 06:40:34,179 INFO L130 BoogieDeclarations]: Found specification of procedure via_write_reg [2022-11-19 06:40:34,179 INFO L138 BoogieDeclarations]: Found implementation of procedure via_write_reg [2022-11-19 06:40:34,179 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2022-11-19 06:40:34,179 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2022-11-19 06:40:34,179 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_vclock [2022-11-19 06:40:34,179 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_vclock [2022-11-19 06:40:34,179 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 06:40:34,179 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 06:40:34,180 INFO L130 BoogieDeclarations]: Found specification of procedure via_aux_get_preferred_mode [2022-11-19 06:40:34,180 INFO L138 BoogieDeclarations]: Found implementation of procedure via_aux_get_preferred_mode [2022-11-19 06:40:34,180 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-11-19 06:40:34,180 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-11-19 06:40:34,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-19 06:40:34,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-19 06:40:34,180 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-19 06:40:34,180 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-19 06:40:34,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_driver_init_2 [2022-11-19 06:40:34,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_driver_init_2 [2022-11-19 06:40:34,181 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_set_mode [2022-11-19 06:40:34,181 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_set_mode [2022-11-19 06:40:34,181 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dvi_query_EDID [2022-11-19 06:40:34,181 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dvi_query_EDID [2022-11-19 06:40:34,181 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2022-11-19 06:40:34,181 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2022-11-19 06:40:34,181 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2022-11-19 06:40:34,181 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2022-11-19 06:40:34,181 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_set_dpa_gfx [2022-11-19 06:40:34,182 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_set_dpa_gfx [2022-11-19 06:40:34,182 INFO L130 BoogieDeclarations]: Found specification of procedure k800_set_secondary_pll_encoded [2022-11-19 06:40:34,182 INFO L138 BoogieDeclarations]: Found implementation of procedure k800_set_secondary_pll_encoded [2022-11-19 06:40:34,182 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_dfpl_proc_write [2022-11-19 06:40:34,182 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_dfpl_proc_write [2022-11-19 06:40:34,182 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_update_device_setting [2022-11-19 06:40:34,182 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_update_device_setting [2022-11-19 06:40:34,182 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-19 06:40:34,182 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-19 06:40:34,183 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_fill_crtc_timing [2022-11-19 06:40:34,183 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_fill_crtc_timing [2022-11-19 06:40:34,183 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-19 06:40:34,183 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-19 06:40:34,183 INFO L130 BoogieDeclarations]: Found specification of procedure machine_is_olpc [2022-11-19 06:40:34,183 INFO L138 BoogieDeclarations]: Found implementation of procedure machine_is_olpc [2022-11-19 06:40:34,183 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-19 06:40:34,183 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-19 06:40:34,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:40:34,183 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_mmio_write [2022-11-19 06:40:34,184 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_mmio_write [2022-11-19 06:40:34,184 INFO L130 BoogieDeclarations]: Found specification of procedure viafb_show_hw_cursor [2022-11-19 06:40:34,184 INFO L138 BoogieDeclarations]: Found implementation of procedure viafb_show_hw_cursor [2022-11-19 06:40:34,184 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2022-11-19 06:40:34,184 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2022-11-19 06:40:35,846 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:40:35,855 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:40:40,179 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 06:41:33,839 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:41:44,854 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:41:44,854 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 06:41:44,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:41:44 BoogieIcfgContainer [2022-11-19 06:41:44,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:41:44,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:41:44,868 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:41:44,875 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:41:44,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:40:23" (1/3) ... [2022-11-19 06:41:44,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61fdd9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:41:44, skipping insertion in model container [2022-11-19 06:41:44,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:40:31" (2/3) ... [2022-11-19 06:41:44,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61fdd9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:41:44, skipping insertion in model container [2022-11-19 06:41:44,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:41:44" (3/3) ... [2022-11-19 06:41:44,878 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--via--viafb.ko-entry_point.cil.out.i [2022-11-19 06:41:44,900 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:41:44,900 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:41:45,133 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:41:45,142 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=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;@542e994a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:41:45,143 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 06:41:45,159 INFO L276 IsEmpty]: Start isEmpty. Operand has 3466 states, 2081 states have (on average 1.4041326285439693) internal successors, (2922), 2267 states have internal predecessors, (2922), 1190 states have call successors, (1190), 194 states have call predecessors, (1190), 193 states have return successors, (1171), 1110 states have call predecessors, (1171), 1171 states have call successors, (1171) [2022-11-19 06:41:45,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-19 06:41:45,177 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:41:45,178 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:41:45,178 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:41:45,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:41:45,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1979766863, now seen corresponding path program 1 times [2022-11-19 06:41:45,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:41:45,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901736106] [2022-11-19 06:41:45,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:41:45,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:41:46,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:41:47,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:41:47,233 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:41:47,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901736106] [2022-11-19 06:41:47,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901736106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:41:47,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:41:47,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:41:47,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465306888] [2022-11-19 06:41:47,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:41:47,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:41:47,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:41:47,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:41:47,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:41:47,295 INFO L87 Difference]: Start difference. First operand has 3466 states, 2081 states have (on average 1.4041326285439693) internal successors, (2922), 2267 states have internal predecessors, (2922), 1190 states have call successors, (1190), 194 states have call predecessors, (1190), 193 states have return successors, (1171), 1110 states have call predecessors, (1171), 1171 states have call successors, (1171) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-19 06:41:49,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:41:56,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:41:59,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:42:02,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:42:04,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:42:06,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:42:07,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:42:09,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:42:13,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:42:15,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:42:19,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:42:21,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:42:23,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:42:24,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:42:24,991 INFO L93 Difference]: Finished difference Result 10167 states and 15578 transitions. [2022-11-19 06:42:24,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:42:24,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 39 [2022-11-19 06:42:24,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:42:25,069 INFO L225 Difference]: With dead ends: 10167 [2022-11-19 06:42:25,069 INFO L226 Difference]: Without dead ends: 6663 [2022-11-19 06:42:25,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:42:25,102 INFO L413 NwaCegarLoop]: 5840 mSDtfsCounter, 4925 mSDsluCounter, 4735 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 4 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4930 SdHoareTripleChecker+Valid, 10575 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:42:25,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4930 Valid, 10575 Invalid, 1063 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1050 Invalid, 9 Unknown, 0 Unchecked, 37.0s Time] [2022-11-19 06:42:25,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6663 states. [2022-11-19 06:42:25,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6663 to 6638. [2022-11-19 06:42:25,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6638 states, 4016 states have (on average 1.3976593625498008) internal successors, (5613), 4337 states have internal predecessors, (5613), 2248 states have call successors, (2248), 374 states have call predecessors, (2248), 373 states have return successors, (2240), 2115 states have call predecessors, (2240), 2239 states have call successors, (2240) [2022-11-19 06:42:25,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6638 states to 6638 states and 10101 transitions. [2022-11-19 06:42:25,918 INFO L78 Accepts]: Start accepts. Automaton has 6638 states and 10101 transitions. Word has length 39 [2022-11-19 06:42:25,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:42:25,919 INFO L495 AbstractCegarLoop]: Abstraction has 6638 states and 10101 transitions. [2022-11-19 06:42:25,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-19 06:42:25,919 INFO L276 IsEmpty]: Start isEmpty. Operand 6638 states and 10101 transitions. [2022-11-19 06:42:25,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-19 06:42:25,931 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:42:25,931 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 06:42:25,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:42:25,932 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:42:25,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:42:25,933 INFO L85 PathProgramCache]: Analyzing trace with hash -191088810, now seen corresponding path program 1 times [2022-11-19 06:42:25,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:42:25,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870903127] [2022-11-19 06:42:25,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:42:25,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:42:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:42:27,500 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 06:42:27,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:42:27,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870903127] [2022-11-19 06:42:27,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870903127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:42:27,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:42:27,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:42:27,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914274274] [2022-11-19 06:42:27,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:42:27,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:42:27,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:42:27,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:42:27,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:42:27,505 INFO L87 Difference]: Start difference. First operand 6638 states and 10101 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-19 06:42:29,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:42:31,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:42:37,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:42:39,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:42:42,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:42:45,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:42:47,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:42:52,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:42:55,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:43:01,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:43:02,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:43:04,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:43:06,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:43:06,670 INFO L93 Difference]: Finished difference Result 19486 states and 29661 transitions. [2022-11-19 06:43:06,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:43:06,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 43 [2022-11-19 06:43:06,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:43:06,762 INFO L225 Difference]: With dead ends: 19486 [2022-11-19 06:43:06,762 INFO L226 Difference]: Without dead ends: 12853 [2022-11-19 06:43:06,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:43:06,805 INFO L413 NwaCegarLoop]: 5829 mSDtfsCounter, 4834 mSDsluCounter, 4623 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 3 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4839 SdHoareTripleChecker+Valid, 10452 SdHoareTripleChecker+Invalid, 1060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.6s IncrementalHoareTripleChecker+Time [2022-11-19 06:43:06,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4839 Valid, 10452 Invalid, 1060 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1050 Invalid, 7 Unknown, 0 Unchecked, 38.6s Time] [2022-11-19 06:43:06,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12853 states. [2022-11-19 06:43:07,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12853 to 12845. [2022-11-19 06:43:07,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12845 states, 7770 states have (on average 1.3987129987129987) internal successors, (10868), 8399 states have internal predecessors, (10868), 4346 states have call successors, (4346), 729 states have call predecessors, (4346), 728 states have return successors, (4340), 4091 states have call predecessors, (4340), 4337 states have call successors, (4340) [2022-11-19 06:43:07,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12845 states to 12845 states and 19554 transitions. [2022-11-19 06:43:07,799 INFO L78 Accepts]: Start accepts. Automaton has 12845 states and 19554 transitions. Word has length 43 [2022-11-19 06:43:07,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:43:07,800 INFO L495 AbstractCegarLoop]: Abstraction has 12845 states and 19554 transitions. [2022-11-19 06:43:07,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-19 06:43:07,802 INFO L276 IsEmpty]: Start isEmpty. Operand 12845 states and 19554 transitions. [2022-11-19 06:43:07,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-19 06:43:07,806 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:43:07,806 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:43:07,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 06:43:07,807 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:43:07,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:43:07,807 INFO L85 PathProgramCache]: Analyzing trace with hash -402433289, now seen corresponding path program 1 times [2022-11-19 06:43:07,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:43:07,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122766220] [2022-11-19 06:43:07,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:43:07,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:43:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:43:08,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:43:08,888 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:43:08,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122766220] [2022-11-19 06:43:08,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122766220] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:43:08,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:43:08,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:43:08,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81277608] [2022-11-19 06:43:08,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:43:08,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:43:08,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:43:08,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:43:08,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:43:08,891 INFO L87 Difference]: Start difference. First operand 12845 states and 19554 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-19 06:43:11,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:43:20,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:43:22,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:43:24,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:43:26,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:43:29,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:43:32,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:43:37,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:43:39,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:43:40,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:43:43,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:43:45,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:43:47,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:43:50,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:43:51,623 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 [] [2022-11-19 06:43:52,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:43:52,248 INFO L93 Difference]: Finished difference Result 36017 states and 54966 transitions. [2022-11-19 06:43:52,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:43:52,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 50 [2022-11-19 06:43:52,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:43:52,407 INFO L225 Difference]: With dead ends: 36017 [2022-11-19 06:43:52,407 INFO L226 Difference]: Without dead ends: 23177 [2022-11-19 06:43:52,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:43:52,481 INFO L413 NwaCegarLoop]: 6709 mSDtfsCounter, 4151 mSDsluCounter, 4663 mSDsCounter, 0 mSdLazyCounter, 1254 mSolverCounterSat, 3 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4154 SdHoareTripleChecker+Valid, 11372 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1254 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.6s IncrementalHoareTripleChecker+Time [2022-11-19 06:43:52,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4154 Valid, 11372 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1254 Invalid, 9 Unknown, 0 Unchecked, 42.6s Time] [2022-11-19 06:43:52,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23177 states. [2022-11-19 06:43:53,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23177 to 23156. [2022-11-19 06:43:54,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23156 states, 14002 states have (on average 1.4060134266533353) internal successors, (19687), 15185 states have internal predecessors, (19687), 7852 states have call successors, (7852), 1302 states have call predecessors, (7852), 1301 states have return successors, (7850), 7379 states have call predecessors, (7850), 7843 states have call successors, (7850) [2022-11-19 06:43:54,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23156 states to 23156 states and 35389 transitions. [2022-11-19 06:43:54,161 INFO L78 Accepts]: Start accepts. Automaton has 23156 states and 35389 transitions. Word has length 50 [2022-11-19 06:43:54,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:43:54,161 INFO L495 AbstractCegarLoop]: Abstraction has 23156 states and 35389 transitions. [2022-11-19 06:43:54,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-19 06:43:54,162 INFO L276 IsEmpty]: Start isEmpty. Operand 23156 states and 35389 transitions. [2022-11-19 06:43:54,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-19 06:43:54,166 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:43:54,166 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:43:54,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 06:43:54,167 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:43:54,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:43:54,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1629210762, now seen corresponding path program 1 times [2022-11-19 06:43:54,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:43:54,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946466047] [2022-11-19 06:43:54,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:43:54,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:43:54,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:43:55,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:43:55,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:43:55,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946466047] [2022-11-19 06:43:55,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946466047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:43:55,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:43:55,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:43:55,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396139820] [2022-11-19 06:43:55,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:43:55,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:43:55,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:43:55,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:43:55,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:43:55,447 INFO L87 Difference]: Start difference. First operand 23156 states and 35389 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-19 06:43:57,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:44:00,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:44:03,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:44:05,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:44:08,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:44:12,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:44:13,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:44:15,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:44:19,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:44:24,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:44:25,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:44:27,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:44:31,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:44:33,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:44:35,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:44:35,134 INFO L93 Difference]: Finished difference Result 46102 states and 70467 transitions. [2022-11-19 06:44:35,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:44:35,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 57 [2022-11-19 06:44:35,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:44:35,390 INFO L225 Difference]: With dead ends: 46102 [2022-11-19 06:44:35,390 INFO L226 Difference]: Without dead ends: 46099 [2022-11-19 06:44:35,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:44:35,422 INFO L413 NwaCegarLoop]: 5869 mSDtfsCounter, 4955 mSDsluCounter, 4684 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4958 SdHoareTripleChecker+Valid, 10553 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.6s IncrementalHoareTripleChecker+Time [2022-11-19 06:44:35,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4958 Valid, 10553 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1046 Invalid, 7 Unknown, 0 Unchecked, 38.6s Time] [2022-11-19 06:44:35,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46099 states. [2022-11-19 06:44:38,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46099 to 46092. [2022-11-19 06:44:38,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46092 states, 27877 states have (on average 1.4064641101983715) internal successors, (39208), 30232 states have internal predecessors, (39208), 15622 states have call successors, (15622), 2593 states have call predecessors, (15622), 2592 states have return successors, (15628), 14685 states have call predecessors, (15628), 15613 states have call successors, (15628) [2022-11-19 06:44:38,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46092 states to 46092 states and 70458 transitions. [2022-11-19 06:44:38,815 INFO L78 Accepts]: Start accepts. Automaton has 46092 states and 70458 transitions. Word has length 57 [2022-11-19 06:44:38,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:44:38,816 INFO L495 AbstractCegarLoop]: Abstraction has 46092 states and 70458 transitions. [2022-11-19 06:44:38,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-19 06:44:38,817 INFO L276 IsEmpty]: Start isEmpty. Operand 46092 states and 70458 transitions. [2022-11-19 06:44:38,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-19 06:44:38,819 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:44:38,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:44:38,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 06:44:38,820 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:44:38,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:44:38,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1032111948, now seen corresponding path program 1 times [2022-11-19 06:44:38,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:44:38,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418735695] [2022-11-19 06:44:38,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:44:38,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:44:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:44:39,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:44:39,961 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:44:39,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418735695] [2022-11-19 06:44:39,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418735695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:44:39,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:44:39,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:44:39,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167368049] [2022-11-19 06:44:39,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:44:39,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:44:39,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:44:39,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:44:39,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:44:39,963 INFO L87 Difference]: Start difference. First operand 46092 states and 70458 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-19 06:44:42,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:44:44,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:44:48,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:44:49,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:44:51,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:44:54,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:44:56,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:45:02,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:45:05,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:45:11,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:45:12,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:45:14,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:45:16,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:45:16,838 INFO L93 Difference]: Finished difference Result 68969 states and 105436 transitions. [2022-11-19 06:45:16,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:45:16,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2022-11-19 06:45:16,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:45:17,223 INFO L225 Difference]: With dead ends: 68969 [2022-11-19 06:45:17,223 INFO L226 Difference]: Without dead ends: 68966 [2022-11-19 06:45:17,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:45:17,259 INFO L413 NwaCegarLoop]: 5875 mSDtfsCounter, 4902 mSDsluCounter, 4687 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4907 SdHoareTripleChecker+Valid, 10562 SdHoareTripleChecker+Invalid, 1056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:45:17,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4907 Valid, 10562 Invalid, 1056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1048 Invalid, 7 Unknown, 0 Unchecked, 35.2s Time] [2022-11-19 06:45:17,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68966 states. [2022-11-19 06:45:20,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68966 to 68957. [2022-11-19 06:45:20,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68957 states, 41708 states have (on average 1.4066126402608612) internal successors, (58667), 45235 states have internal predecessors, (58667), 23372 states have call successors, (23372), 3877 states have call predecessors, (23372), 3876 states have return successors, (23386), 21971 states have call predecessors, (23386), 23363 states have call successors, (23386) [2022-11-19 06:45:21,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68957 states to 68957 states and 105425 transitions. [2022-11-19 06:45:21,692 INFO L78 Accepts]: Start accepts. Automaton has 68957 states and 105425 transitions. Word has length 58 [2022-11-19 06:45:21,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:45:21,692 INFO L495 AbstractCegarLoop]: Abstraction has 68957 states and 105425 transitions. [2022-11-19 06:45:21,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-19 06:45:21,693 INFO L276 IsEmpty]: Start isEmpty. Operand 68957 states and 105425 transitions. [2022-11-19 06:45:21,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-19 06:45:21,696 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:45:21,697 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:45:21,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 06:45:21,697 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:45:21,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:45:21,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1928742201, now seen corresponding path program 1 times [2022-11-19 06:45:21,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:45:21,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066165207] [2022-11-19 06:45:21,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:45:21,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:45:22,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:45:23,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:45:23,060 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:45:23,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066165207] [2022-11-19 06:45:23,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066165207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:45:23,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:45:23,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:45:23,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46547828] [2022-11-19 06:45:23,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:45:23,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:45:23,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:45:23,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:45:23,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:45:23,062 INFO L87 Difference]: Start difference. First operand 68957 states and 105425 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-19 06:45:25,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:45:30,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:45:33,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:45:36,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:45:38,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:45:42,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:45:46,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:45:48,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:45:50,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:45:55,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:45:56,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:45:58,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:46:00,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:46:00,737 INFO L93 Difference]: Finished difference Result 68970 states and 105437 transitions. [2022-11-19 06:46:00,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:46:00,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 59 [2022-11-19 06:46:00,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:46:01,125 INFO L225 Difference]: With dead ends: 68970 [2022-11-19 06:46:01,125 INFO L226 Difference]: Without dead ends: 68967 [2022-11-19 06:46:01,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:46:01,167 INFO L413 NwaCegarLoop]: 5875 mSDtfsCounter, 4899 mSDsluCounter, 4690 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4904 SdHoareTripleChecker+Valid, 10565 SdHoareTripleChecker+Invalid, 1056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.8s IncrementalHoareTripleChecker+Time [2022-11-19 06:46:01,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4904 Valid, 10565 Invalid, 1056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1048 Invalid, 7 Unknown, 0 Unchecked, 35.8s Time] [2022-11-19 06:46:01,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68967 states. [2022-11-19 06:46:04,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68967 to 68958. [2022-11-19 06:46:04,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68958 states, 41709 states have (on average 1.4066028914622744) internal successors, (58668), 45236 states have internal predecessors, (58668), 23372 states have call successors, (23372), 3877 states have call predecessors, (23372), 3876 states have return successors, (23386), 21971 states have call predecessors, (23386), 23363 states have call successors, (23386) [2022-11-19 06:46:04,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68958 states to 68958 states and 105426 transitions. [2022-11-19 06:46:04,981 INFO L78 Accepts]: Start accepts. Automaton has 68958 states and 105426 transitions. Word has length 59 [2022-11-19 06:46:04,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:46:04,982 INFO L495 AbstractCegarLoop]: Abstraction has 68958 states and 105426 transitions. [2022-11-19 06:46:04,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-19 06:46:04,982 INFO L276 IsEmpty]: Start isEmpty. Operand 68958 states and 105426 transitions. [2022-11-19 06:46:04,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-19 06:46:04,988 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:46:04,988 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:46:04,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 06:46:04,989 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:46:04,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:46:04,990 INFO L85 PathProgramCache]: Analyzing trace with hash -340486161, now seen corresponding path program 1 times [2022-11-19 06:46:04,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:46:04,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215781424] [2022-11-19 06:46:04,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:46:04,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:46:05,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:06,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:06,436 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:46:06,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215781424] [2022-11-19 06:46:06,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215781424] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:46:06,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:46:06,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:46:06,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191418175] [2022-11-19 06:46:06,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:46:06,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:46:06,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:46:06,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:46:06,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:46:06,440 INFO L87 Difference]: Start difference. First operand 68958 states and 105426 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-19 06:46:08,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:46:14,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:46:16,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:46:18,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:46:21,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:46:23,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:46:30,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:46:32,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:46:35,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:46:39,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:46:41,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:46:43,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:46:45,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:46:46,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:46:46,951 INFO L93 Difference]: Finished difference Result 91813 states and 140366 transitions. [2022-11-19 06:46:46,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:46:46,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 60 [2022-11-19 06:46:46,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:46:47,441 INFO L225 Difference]: With dead ends: 91813 [2022-11-19 06:46:47,441 INFO L226 Difference]: Without dead ends: 91810 [2022-11-19 06:46:47,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:46:47,630 INFO L413 NwaCegarLoop]: 5874 mSDtfsCounter, 4890 mSDsluCounter, 4693 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4895 SdHoareTripleChecker+Valid, 10567 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.8s IncrementalHoareTripleChecker+Time [2022-11-19 06:46:47,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4895 Valid, 10567 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1044 Invalid, 10 Unknown, 0 Unchecked, 37.8s Time] [2022-11-19 06:46:47,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91810 states. [2022-11-19 06:46:52,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91810 to 91801. [2022-11-19 06:46:52,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91801 states, 55526 states have (on average 1.4066383315924071) internal successors, (78105), 60225 states have internal predecessors, (78105), 31114 states have call successors, (31114), 5161 states have call predecessors, (31114), 5160 states have return successors, (31136), 29249 states have call predecessors, (31136), 31105 states have call successors, (31136) [2022-11-19 06:46:52,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91801 states to 91801 states and 140355 transitions. [2022-11-19 06:46:52,742 INFO L78 Accepts]: Start accepts. Automaton has 91801 states and 140355 transitions. Word has length 60 [2022-11-19 06:46:52,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:46:52,743 INFO L495 AbstractCegarLoop]: Abstraction has 91801 states and 140355 transitions. [2022-11-19 06:46:52,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-19 06:46:52,743 INFO L276 IsEmpty]: Start isEmpty. Operand 91801 states and 140355 transitions. [2022-11-19 06:46:52,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-19 06:46:52,745 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:46:52,745 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:46:52,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 06:46:52,746 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:46:52,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:46:52,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1967083780, now seen corresponding path program 1 times [2022-11-19 06:46:52,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:46:52,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667221612] [2022-11-19 06:46:52,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:46:52,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:46:53,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:46:54,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:46:54,096 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:46:54,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667221612] [2022-11-19 06:46:54,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667221612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:46:54,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:46:54,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:46:54,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497277081] [2022-11-19 06:46:54,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:46:54,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:46:54,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:46:54,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:46:54,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:46:54,098 INFO L87 Difference]: Start difference. First operand 91801 states and 140355 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-19 06:46:56,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:47:00,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:47:03,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:47:06,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:47:07,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:47:10,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:47:16,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:47:18,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:47:20,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:47:22,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:47:24,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:47:29,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:47:31,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:47:33,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:47:35,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:47:35,765 INFO L93 Difference]: Finished difference Result 92604 states and 141408 transitions. [2022-11-19 06:47:35,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:47:35,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 61 [2022-11-19 06:47:35,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:47:36,325 INFO L225 Difference]: With dead ends: 92604 [2022-11-19 06:47:36,326 INFO L226 Difference]: Without dead ends: 92601 [2022-11-19 06:47:36,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:47:36,376 INFO L413 NwaCegarLoop]: 5893 mSDtfsCounter, 4769 mSDsluCounter, 4696 mSDsCounter, 0 mSdLazyCounter, 1051 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4772 SdHoareTripleChecker+Valid, 10589 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1051 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.8s IncrementalHoareTripleChecker+Time [2022-11-19 06:47:36,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4772 Valid, 10589 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1051 Invalid, 10 Unknown, 0 Unchecked, 38.8s Time] [2022-11-19 06:47:36,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92601 states. [2022-11-19 06:47:41,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92601 to 91174. [2022-11-19 06:47:41,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91174 states, 55121 states have (on average 1.4069048094192775) internal successors, (77550), 59773 states have internal predecessors, (77550), 30892 states have call successors, (30892), 5161 states have call predecessors, (30892), 5160 states have return successors, (30914), 29053 states have call predecessors, (30914), 30883 states have call successors, (30914) [2022-11-19 06:47:42,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91174 states to 91174 states and 139356 transitions. [2022-11-19 06:47:42,315 INFO L78 Accepts]: Start accepts. Automaton has 91174 states and 139356 transitions. Word has length 61 [2022-11-19 06:47:42,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:47:42,316 INFO L495 AbstractCegarLoop]: Abstraction has 91174 states and 139356 transitions. [2022-11-19 06:47:42,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-19 06:47:42,316 INFO L276 IsEmpty]: Start isEmpty. Operand 91174 states and 139356 transitions. [2022-11-19 06:47:42,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-19 06:47:42,319 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:47:42,319 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:47:42,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 06:47:42,320 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:47:42,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:47:42,320 INFO L85 PathProgramCache]: Analyzing trace with hash -851997550, now seen corresponding path program 1 times [2022-11-19 06:47:42,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:47:42,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647549844] [2022-11-19 06:47:42,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:47:42,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:47:42,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:47:43,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:47:43,234 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:47:43,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647549844] [2022-11-19 06:47:43,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647549844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:47:43,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:47:43,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:47:43,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713626766] [2022-11-19 06:47:43,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:47:43,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:47:43,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:47:43,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:47:43,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:47:43,237 INFO L87 Difference]: Start difference. First operand 91174 states and 139356 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-19 06:47:45,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:47:49,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:47:52,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:47:54,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:47:56,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:47:59,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:48:01,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:48:07,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:48:10,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:48:12,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:48:14,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:48:16,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:48:21,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:48:24,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:48:27,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:48:27,475 INFO L93 Difference]: Finished difference Result 113709 states and 173787 transitions. [2022-11-19 06:48:27,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:48:27,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2022-11-19 06:48:27,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:48:28,086 INFO L225 Difference]: With dead ends: 113709 [2022-11-19 06:48:28,086 INFO L226 Difference]: Without dead ends: 113706 [2022-11-19 06:48:28,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:48:28,128 INFO L413 NwaCegarLoop]: 5897 mSDtfsCounter, 4778 mSDsluCounter, 4699 mSDsCounter, 0 mSdLazyCounter, 1051 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4781 SdHoareTripleChecker+Valid, 10596 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1051 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.3s IncrementalHoareTripleChecker+Time [2022-11-19 06:48:28,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4781 Valid, 10596 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1051 Invalid, 10 Unknown, 0 Unchecked, 40.3s Time] [2022-11-19 06:48:28,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113706 states. [2022-11-19 06:48:35,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113706 to 113665. [2022-11-19 06:48:35,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113665 states, 68721 states have (on average 1.4071681145501376) internal successors, (96702), 74517 states have internal predecessors, (96702), 38504 states have call successors, (38504), 6440 states have call predecessors, (38504), 6439 states have return successors, (38534), 36217 states have call predecessors, (38534), 38495 states have call successors, (38534) [2022-11-19 06:48:36,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113665 states to 113665 states and 173740 transitions. [2022-11-19 06:48:36,279 INFO L78 Accepts]: Start accepts. Automaton has 113665 states and 173740 transitions. Word has length 62 [2022-11-19 06:48:36,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:48:36,280 INFO L495 AbstractCegarLoop]: Abstraction has 113665 states and 173740 transitions. [2022-11-19 06:48:36,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-19 06:48:36,281 INFO L276 IsEmpty]: Start isEmpty. Operand 113665 states and 173740 transitions. [2022-11-19 06:48:36,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-19 06:48:36,283 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:48:36,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:48:36,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 06:48:36,284 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:48:36,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:48:36,285 INFO L85 PathProgramCache]: Analyzing trace with hash -644057921, now seen corresponding path program 1 times [2022-11-19 06:48:36,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:48:36,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830917794] [2022-11-19 06:48:36,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:48:36,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:48:36,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:48:37,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:48:37,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:48:37,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830917794] [2022-11-19 06:48:37,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830917794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:48:37,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:48:37,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:48:37,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954884054] [2022-11-19 06:48:37,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:48:37,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:48:37,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:48:37,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:48:37,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:48:37,210 INFO L87 Difference]: Start difference. First operand 113665 states and 173740 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-19 06:48:40,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.79s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:48:41,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:48:45,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:48:49,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:48:51,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []