./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-08_1a-drivers--video--fbdev--core--fb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_c077bea7-ab6d-41f9-880c-9f4d5f14dcc3/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c077bea7-ab6d-41f9-880c-9f4d5f14dcc3/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c077bea7-ab6d-41f9-880c-9f4d5f14dcc3/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c077bea7-ab6d-41f9-880c-9f4d5f14dcc3/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--fbdev--core--fb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c077bea7-ab6d-41f9-880c-9f4d5f14dcc3/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c077bea7-ab6d-41f9-880c-9f4d5f14dcc3/bin/utaipan-7li7fVZpFI --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 2bf66c918295559060a8e3ec892f4cbf4fc66cf4b9f3e9338e9b0a339b20bc2f --- 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-5e519f3 [2022-11-03 01:36:17,554 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:36:17,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:36:17,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:36:17,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:36:17,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:36:17,631 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:36:17,636 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:36:17,638 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:36:17,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:36:17,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:36:17,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:36:17,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:36:17,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:36:17,657 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:36:17,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:36:17,661 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:36:17,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:36:17,664 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:36:17,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:36:17,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:36:17,677 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:36:17,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:36:17,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:36:17,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:36:17,694 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:36:17,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:36:17,696 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:36:17,698 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:36:17,699 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:36:17,700 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:36:17,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:36:17,703 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:36:17,705 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:36:17,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:36:17,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:36:17,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:36:17,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:36:17,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:36:17,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:36:17,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:36:17,712 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c077bea7-ab6d-41f9-880c-9f4d5f14dcc3/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 01:36:17,760 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:36:17,760 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:36:17,761 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:36:17,761 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:36:17,763 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:36:17,763 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:36:17,763 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:36:17,763 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:36:17,764 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:36:17,764 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:36:17,765 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:36:17,765 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:36:17,766 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:36:17,766 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:36:17,766 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:36:17,767 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:36:17,767 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:36:17,767 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:36:17,768 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:36:17,768 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:36:17,768 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:36:17,769 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:36:17,769 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:36:17,769 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:36:17,769 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:36:17,769 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:36:17,770 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:36:17,770 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:36:17,770 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:36:17,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:36:17,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:36:17,771 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:36:17,772 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:36:17,772 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:36:17,773 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:36:17,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:36:17,773 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:36:17,773 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:36:17,774 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_c077bea7-ab6d-41f9-880c-9f4d5f14dcc3/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c077bea7-ab6d-41f9-880c-9f4d5f14dcc3/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2bf66c918295559060a8e3ec892f4cbf4fc66cf4b9f3e9338e9b0a339b20bc2f [2022-11-03 01:36:18,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:36:18,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:36:18,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:36:18,224 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:36:18,225 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:36:18,227 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c077bea7-ab6d-41f9-880c-9f4d5f14dcc3/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--fbdev--core--fb.ko-entry_point.cil.out.i [2022-11-03 01:36:18,303 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c077bea7-ab6d-41f9-880c-9f4d5f14dcc3/bin/utaipan-7li7fVZpFI/data/050bb848a/fcf420306edd4392923bfa0cacd90657/FLAGdb31b2e31 [2022-11-03 01:36:19,536 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:36:19,537 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c077bea7-ab6d-41f9-880c-9f4d5f14dcc3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--fbdev--core--fb.ko-entry_point.cil.out.i [2022-11-03 01:36:19,645 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c077bea7-ab6d-41f9-880c-9f4d5f14dcc3/bin/utaipan-7li7fVZpFI/data/050bb848a/fcf420306edd4392923bfa0cacd90657/FLAGdb31b2e31 [2022-11-03 01:36:19,702 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c077bea7-ab6d-41f9-880c-9f4d5f14dcc3/bin/utaipan-7li7fVZpFI/data/050bb848a/fcf420306edd4392923bfa0cacd90657 [2022-11-03 01:36:19,705 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:36:19,707 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:36:19,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:36:19,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:36:19,716 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:36:19,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:36:19" (1/1) ... [2022-11-03 01:36:19,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@301bd196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:36:19, skipping insertion in model container [2022-11-03 01:36:19,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:36:19" (1/1) ... [2022-11-03 01:36:19,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:36:19,994 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:36:24,069 WARN L230 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_c077bea7-ab6d-41f9-880c-9f4d5f14dcc3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--fbdev--core--fb.ko-entry_point.cil.out.i[416114,416127] [2022-11-03 01:36:24,130 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-03 01:36:24,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:36:24,351 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:36:25,163 WARN L230 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_c077bea7-ab6d-41f9-880c-9f4d5f14dcc3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--fbdev--core--fb.ko-entry_point.cil.out.i[416114,416127] [2022-11-03 01:36:25,171 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-03 01:36:25,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:36:25,448 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:36:25,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:36:25 WrapperNode [2022-11-03 01:36:25,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:36:25,450 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:36:25,450 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:36:25,450 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:36:25,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:36:25" (1/1) ... [2022-11-03 01:36:25,838 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:36:25" (1/1) ... [2022-11-03 01:36:26,440 INFO L138 Inliner]: procedures = 416, calls = 9044, calls flagged for inlining = 161, calls inlined = 152, statements flattened = 14316 [2022-11-03 01:36:26,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:36:26,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:36:26,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:36:26,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:36:26,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:36:25" (1/1) ... [2022-11-03 01:36:26,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:36:25" (1/1) ... [2022-11-03 01:36:26,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:36:25" (1/1) ... [2022-11-03 01:36:26,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:36:25" (1/1) ... [2022-11-03 01:36:27,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:36:25" (1/1) ... [2022-11-03 01:36:27,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:36:25" (1/1) ... [2022-11-03 01:36:27,323 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:36:25" (1/1) ... [2022-11-03 01:36:27,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:36:25" (1/1) ... [2022-11-03 01:36:27,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:36:27,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:36:27,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:36:27,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:36:27,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:36:25" (1/1) ... [2022-11-03 01:36:27,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:36:27,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c077bea7-ab6d-41f9-880c-9f4d5f14dcc3/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:36:27,514 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c077bea7-ab6d-41f9-880c-9f4d5f14dcc3/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:36:27,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c077bea7-ab6d-41f9-880c-9f4d5f14dcc3/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:36:27,562 INFO L130 BoogieDeclarations]: Found specification of procedure fb_timings_vfreq [2022-11-03 01:36:27,563 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_timings_vfreq [2022-11-03 01:36:27,563 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-03 01:36:27,563 INFO L130 BoogieDeclarations]: Found specification of procedure fb_create_modedb [2022-11-03 01:36:27,563 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_create_modedb [2022-11-03 01:36:27,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 01:36:27,564 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 01:36:27,564 INFO L130 BoogieDeclarations]: Found specification of procedure fb_deferred_io_mkwrite [2022-11-03 01:36:27,564 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_deferred_io_mkwrite [2022-11-03 01:36:27,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 01:36:27,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 01:36:27,565 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-11-03 01:36:27,565 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-11-03 01:36:27,565 INFO L130 BoogieDeclarations]: Found specification of procedure fb_timings_dclk [2022-11-03 01:36:27,566 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_timings_dclk [2022-11-03 01:36:27,566 INFO L130 BoogieDeclarations]: Found specification of procedure edid_is_limits_block [2022-11-03 01:36:27,566 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_is_limits_block [2022-11-03 01:36:27,566 INFO L130 BoogieDeclarations]: Found specification of procedure edid_is_monitor_block [2022-11-03 01:36:27,566 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_is_monitor_block [2022-11-03 01:36:27,567 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-03 01:36:27,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 01:36:27,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 01:36:27,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 01:36:27,567 INFO L130 BoogieDeclarations]: Found specification of procedure put_fb_info [2022-11-03 01:36:27,568 INFO L138 BoogieDeclarations]: Found implementation of procedure put_fb_info [2022-11-03 01:36:27,568 INFO L130 BoogieDeclarations]: Found specification of procedure fb_add_videomode [2022-11-03 01:36:27,568 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_add_videomode [2022-11-03 01:36:27,568 INFO L130 BoogieDeclarations]: Found specification of procedure edid_is_timing_block [2022-11-03 01:36:27,568 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_is_timing_block [2022-11-03 01:36:27,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 01:36:27,569 INFO L130 BoogieDeclarations]: Found specification of procedure pm_vt_switch_required [2022-11-03 01:36:27,569 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_vt_switch_required [2022-11-03 01:36:27,569 INFO L130 BoogieDeclarations]: Found specification of procedure edid_is_ascii_block [2022-11-03 01:36:27,569 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_is_ascii_block [2022-11-03 01:36:27,570 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-11-03 01:36:27,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-11-03 01:36:27,570 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-03 01:36:27,570 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-03 01:36:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 01:36:27,571 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 01:36:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure fb_timings_hfreq [2022-11-03 01:36:27,571 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_timings_hfreq [2022-11-03 01:36:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure do_unregister_framebuffer [2022-11-03 01:36:27,572 INFO L138 BoogieDeclarations]: Found implementation of procedure do_unregister_framebuffer [2022-11-03 01:36:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure fb_deferred_io_fault [2022-11-03 01:36:27,572 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_deferred_io_fault [2022-11-03 01:36:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure fb_seq_show [2022-11-03 01:36:27,573 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_seq_show [2022-11-03 01:36:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure fb_pan_display [2022-11-03 01:36:27,573 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_pan_display [2022-11-03 01:36:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure fb_be_math [2022-11-03 01:36:27,573 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_be_math [2022-11-03 01:36:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 01:36:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure fb_var_to_videomode [2022-11-03 01:36:27,574 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_var_to_videomode [2022-11-03 01:36:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure fb_get_vblank [2022-11-03 01:36:27,574 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_get_vblank [2022-11-03 01:36:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-03 01:36:27,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-03 01:36:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 01:36:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure fb_getput_cmap [2022-11-03 01:36:27,575 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_getput_cmap [2022-11-03 01:36:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 01:36:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure fb_mode_is_equal [2022-11-03 01:36:27,576 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_mode_is_equal [2022-11-03 01:36:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 01:36:27,576 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 01:36:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_framebuffer [2022-11-03 01:36:27,577 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_framebuffer [2022-11-03 01:36:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-03 01:36:27,577 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-03 01:36:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-03 01:36:27,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-03 01:36:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2022-11-03 01:36:27,578 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2022-11-03 01:36:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 01:36:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure fb_show_logo_line [2022-11-03 01:36:27,579 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_show_logo_line [2022-11-03 01:36:27,579 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-03 01:36:27,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-03 01:36:27,579 INFO L130 BoogieDeclarations]: Found specification of procedure fb_get_color_depth [2022-11-03 01:36:27,579 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_get_color_depth [2022-11-03 01:36:27,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:36:27,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 01:36:27,580 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 01:36:27,580 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 01:36:27,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 01:36:27,581 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:36:27,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:36:27,581 INFO L130 BoogieDeclarations]: Found specification of procedure fb_find_mode_cvt [2022-11-03 01:36:27,581 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_find_mode_cvt [2022-11-03 01:36:27,582 INFO L130 BoogieDeclarations]: Found specification of procedure do_fb_ioctl [2022-11-03 01:36:27,582 INFO L138 BoogieDeclarations]: Found implementation of procedure do_fb_ioctl [2022-11-03 01:36:27,582 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_logocmap [2022-11-03 01:36:27,582 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_logocmap [2022-11-03 01:36:27,582 INFO L130 BoogieDeclarations]: Found specification of procedure lock_page [2022-11-03 01:36:27,583 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_page [2022-11-03 01:36:27,583 INFO L130 BoogieDeclarations]: Found specification of procedure fb_copy_cmap [2022-11-03 01:36:27,583 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_copy_cmap [2022-11-03 01:36:27,583 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-11-03 01:36:27,583 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-11-03 01:36:27,584 INFO L130 BoogieDeclarations]: Found specification of procedure fb_notifier_call_chain [2022-11-03 01:36:27,584 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_notifier_call_chain [2022-11-03 01:36:27,584 INFO L130 BoogieDeclarations]: Found specification of procedure edid_check_header [2022-11-03 01:36:27,584 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_check_header [2022-11-03 01:36:27,584 INFO L130 BoogieDeclarations]: Found specification of procedure fb_deferred_io_set_page_dirty [2022-11-03 01:36:27,585 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_deferred_io_set_page_dirty [2022-11-03 01:36:27,585 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-03 01:36:27,585 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-03 01:36:27,585 INFO L130 BoogieDeclarations]: Found specification of procedure calc_mode_timings [2022-11-03 01:36:27,585 INFO L138 BoogieDeclarations]: Found implementation of procedure calc_mode_timings [2022-11-03 01:36:27,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:36:27,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:36:27,586 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 01:36:27,586 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 01:36:27,586 INFO L130 BoogieDeclarations]: Found specification of procedure fb_ioctl [2022-11-03 01:36:27,587 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_ioctl [2022-11-03 01:36:27,587 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-03 01:36:27,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-03 01:36:27,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 01:36:27,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 01:36:27,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 01:36:27,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 01:36:27,588 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-03 01:36:27,588 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-03 01:36:27,588 INFO L130 BoogieDeclarations]: Found specification of procedure fb_write [2022-11-03 01:36:27,589 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_write [2022-11-03 01:36:27,589 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2022-11-03 01:36:27,589 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2022-11-03 01:36:27,589 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-11-03 01:36:27,589 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-11-03 01:36:27,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-03 01:36:27,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-03 01:36:27,590 INFO L130 BoogieDeclarations]: Found specification of procedure fb_destroy_modelist [2022-11-03 01:36:27,590 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_destroy_modelist [2022-11-03 01:36:27,591 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 01:36:27,591 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 01:36:27,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 01:36:27,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 01:36:27,591 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-03 01:36:27,592 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-03 01:36:27,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 01:36:27,592 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 01:36:27,592 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 01:36:27,592 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 01:36:27,592 INFO L130 BoogieDeclarations]: Found specification of procedure edid_checksum [2022-11-03 01:36:27,593 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_checksum [2022-11-03 01:36:27,593 INFO L130 BoogieDeclarations]: Found specification of procedure do_remove_conflicting_framebuffers [2022-11-03 01:36:27,593 INFO L138 BoogieDeclarations]: Found implementation of procedure do_remove_conflicting_framebuffers [2022-11-03 01:36:27,593 INFO L130 BoogieDeclarations]: Found specification of procedure fb_release [2022-11-03 01:36:27,593 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_release [2022-11-03 01:36:27,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 01:36:27,594 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 01:36:27,594 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 01:36:27,594 INFO L130 BoogieDeclarations]: Found specification of procedure get_fb_info [2022-11-03 01:36:27,594 INFO L138 BoogieDeclarations]: Found implementation of procedure get_fb_info [2022-11-03 01:36:27,594 INFO L130 BoogieDeclarations]: Found specification of procedure copy_in_user [2022-11-03 01:36:27,595 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_in_user [2022-11-03 01:36:27,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 01:36:27,595 INFO L130 BoogieDeclarations]: Found specification of procedure fb_deferred_io_work [2022-11-03 01:36:27,595 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_deferred_io_work [2022-11-03 01:36:27,595 INFO L130 BoogieDeclarations]: Found specification of procedure fb_dealloc_cmap [2022-11-03 01:36:27,596 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_dealloc_cmap [2022-11-03 01:36:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-03 01:36:27,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-03 01:36:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2022-11-03 01:36:27,596 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2022-11-03 01:36:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 01:36:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure fb_deferred_io_fsync [2022-11-03 01:36:27,597 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_deferred_io_fsync [2022-11-03 01:36:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 01:36:27,597 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 01:36:27,597 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-03 01:36:27,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-03 01:36:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure proc_fb_open [2022-11-03 01:36:27,598 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_fb_open [2022-11-03 01:36:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure edid_is_serial_block [2022-11-03 01:36:27,598 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_is_serial_block [2022-11-03 01:36:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-03 01:36:27,599 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-03 01:36:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_fb_info [2022-11-03 01:36:27,599 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_fb_info [2022-11-03 01:36:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure get_std_timing [2022-11-03 01:36:27,599 INFO L138 BoogieDeclarations]: Found implementation of procedure get_std_timing [2022-11-03 01:36:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_cmap [2022-11-03 01:36:27,600 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_cmap [2022-11-03 01:36:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-03 01:36:27,600 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-03 01:36:27,600 INFO L130 BoogieDeclarations]: Found specification of procedure file_fb_info [2022-11-03 01:36:27,601 INFO L138 BoogieDeclarations]: Found implementation of procedure file_fb_info [2022-11-03 01:36:27,601 INFO L130 BoogieDeclarations]: Found specification of procedure fb_deferred_io_page [2022-11-03 01:36:27,601 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_deferred_io_page [2022-11-03 01:36:27,601 INFO L130 BoogieDeclarations]: Found specification of procedure fb_mmap [2022-11-03 01:36:27,601 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_mmap [2022-11-03 01:36:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure fb_videomode_from_videomode [2022-11-03 01:36:27,602 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_videomode_from_videomode [2022-11-03 01:36:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure fb_destroy_modedb [2022-11-03 01:36:27,602 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_destroy_modedb [2022-11-03 01:36:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure fb_compat_ioctl [2022-11-03 01:36:27,602 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_compat_ioctl [2022-11-03 01:36:27,603 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_var [2022-11-03 01:36:27,603 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_var [2022-11-03 01:36:27,603 INFO L130 BoogieDeclarations]: Found specification of procedure lock_fb_info [2022-11-03 01:36:27,603 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_fb_info [2022-11-03 01:36:27,603 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 01:36:27,604 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 01:36:27,604 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 01:36:27,604 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 01:36:27,604 INFO L130 BoogieDeclarations]: Found specification of procedure safe_shift [2022-11-03 01:36:27,604 INFO L138 BoogieDeclarations]: Found implementation of procedure safe_shift [2022-11-03 01:36:27,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 01:36:27,605 INFO L130 BoogieDeclarations]: Found specification of procedure fb_deferred_io_open [2022-11-03 01:36:27,605 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_deferred_io_open [2022-11-03 01:36:27,605 INFO L130 BoogieDeclarations]: Found specification of procedure seq_release [2022-11-03 01:36:27,605 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_release [2022-11-03 01:36:27,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 01:36:27,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 01:36:27,606 INFO L130 BoogieDeclarations]: Found specification of procedure fb_read [2022-11-03 01:36:27,606 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_read [2022-11-03 01:36:27,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-03 01:36:27,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-03 01:36:27,606 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-03 01:36:27,607 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-03 01:36:27,607 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-03 01:36:27,607 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-03 01:36:27,607 INFO L130 BoogieDeclarations]: Found specification of procedure fb_open [2022-11-03 01:36:27,607 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_open [2022-11-03 01:36:27,608 INFO L130 BoogieDeclarations]: Found specification of procedure fb_videomode_to_var [2022-11-03 01:36:27,608 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_videomode_to_var [2022-11-03 01:36:27,608 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-11-03 01:36:27,608 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-11-03 01:36:27,608 INFO L130 BoogieDeclarations]: Found specification of procedure fb_blank [2022-11-03 01:36:27,608 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_blank [2022-11-03 01:36:27,609 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2022-11-03 01:36:27,609 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2022-11-03 01:36:27,609 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2022-11-03 01:36:27,609 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2022-11-03 01:36:27,609 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-03 01:36:27,610 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-03 01:36:27,610 INFO L130 BoogieDeclarations]: Found specification of procedure fb_get_fscreeninfo [2022-11-03 01:36:27,610 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_get_fscreeninfo [2022-11-03 01:36:27,610 INFO L130 BoogieDeclarations]: Found specification of procedure fix_edid [2022-11-03 01:36:27,610 INFO L138 BoogieDeclarations]: Found implementation of procedure fix_edid [2022-11-03 01:36:27,611 INFO L130 BoogieDeclarations]: Found specification of procedure check_edid [2022-11-03 01:36:27,611 INFO L138 BoogieDeclarations]: Found implementation of procedure check_edid [2022-11-03 01:36:27,611 INFO L130 BoogieDeclarations]: Found specification of procedure fb_alloc_cmap_gfp [2022-11-03 01:36:27,611 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_alloc_cmap_gfp [2022-11-03 01:36:27,611 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 01:36:27,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 01:36:27,612 INFO L130 BoogieDeclarations]: Found specification of procedure fb_get_hblank_by_hfreq [2022-11-03 01:36:27,612 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_get_hblank_by_hfreq [2022-11-03 01:36:27,612 INFO L130 BoogieDeclarations]: Found specification of procedure get_detailed_timing [2022-11-03 01:36:27,612 INFO L138 BoogieDeclarations]: Found implementation of procedure get_detailed_timing [2022-11-03 01:36:27,612 INFO L130 BoogieDeclarations]: Found specification of procedure fb_seq_stop [2022-11-03 01:36:27,613 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_seq_stop [2022-11-03 01:36:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:36:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-03 01:36:27,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-03 01:36:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure fb_show_logo [2022-11-03 01:36:27,613 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_show_logo [2022-11-03 01:36:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure copy_string [2022-11-03 01:36:27,614 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_string [2022-11-03 01:36:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-11-03 01:36:27,614 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-11-03 01:36:29,230 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:36:29,235 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:36:50,608 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 01:38:09,584 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:38:18,283 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:38:18,284 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 01:38:18,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:38:18 BoogieIcfgContainer [2022-11-03 01:38:18,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:38:18,294 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:38:18,294 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:38:18,298 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:38:18,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:36:19" (1/3) ... [2022-11-03 01:38:18,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@420b0db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:38:18, skipping insertion in model container [2022-11-03 01:38:18,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:36:25" (2/3) ... [2022-11-03 01:38:18,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@420b0db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:38:18, skipping insertion in model container [2022-11-03 01:38:18,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:38:18" (3/3) ... [2022-11-03 01:38:18,302 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--video--fbdev--core--fb.ko-entry_point.cil.out.i [2022-11-03 01:38:18,326 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:38:18,327 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:38:18,439 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:38:18,449 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;@5f14922e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:38:18,450 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:38:18,463 INFO L276 IsEmpty]: Start isEmpty. Operand has 1725 states, 1121 states have (on average 1.3951828724353257) internal successors, (1564), 1164 states have internal predecessors, (1564), 481 states have call successors, (481), 122 states have call predecessors, (481), 121 states have return successors, (474), 463 states have call predecessors, (474), 474 states have call successors, (474) [2022-11-03 01:38:18,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-11-03 01:38:18,503 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:38:18,505 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:38:18,506 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:38:18,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:38:18,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1054456258, now seen corresponding path program 1 times [2022-11-03 01:38:18,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:38:18,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40132738] [2022-11-03 01:38:18,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:18,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:38:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:38:21,250 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 847 trivial. 0 not checked. [2022-11-03 01:38:21,251 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:38:21,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40132738] [2022-11-03 01:38:21,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40132738] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:38:21,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:38:21,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:38:21,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809064872] [2022-11-03 01:38:21,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:38:21,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:38:21,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:38:21,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:38:21,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:38:21,306 INFO L87 Difference]: Start difference. First operand has 1725 states, 1121 states have (on average 1.3951828724353257) internal successors, (1564), 1164 states have internal predecessors, (1564), 481 states have call successors, (481), 122 states have call predecessors, (481), 121 states have return successors, (474), 463 states have call predecessors, (474), 474 states have call successors, (474) Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2022-11-03 01:38:23,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:38:26,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:38:28,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:38:30,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:38:34,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:38:36,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:38:37,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:38:40,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:38:42,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:38:44,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:38:46,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:38:48,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:38:50,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:38:52,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:38:54,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:38:57,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:38:59,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 01:39:02,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:39:04,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:39:06,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:39:10,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:39:10,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:39:10,503 INFO L93 Difference]: Finished difference Result 4967 states and 7352 transitions. [2022-11-03 01:39:10,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:39:10,506 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), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 223 [2022-11-03 01:39:10,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:39:10,548 INFO L225 Difference]: With dead ends: 4967 [2022-11-03 01:39:10,548 INFO L226 Difference]: Without dead ends: 3263 [2022-11-03 01:39:10,564 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 [2022-11-03 01:39:10,568 INFO L413 NwaCegarLoop]: 2670 mSDtfsCounter, 2283 mSDsluCounter, 2471 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 3 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2304 SdHoareTripleChecker+Valid, 4858 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.8s IncrementalHoareTripleChecker+Time [2022-11-03 01:39:10,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2304 Valid, 4858 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 586 Invalid, 17 Unknown, 0 Unchecked, 48.8s Time] [2022-11-03 01:39:10,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3263 states. [2022-11-03 01:39:10,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3263 to 3253. [2022-11-03 01:39:10,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3253 states, 2129 states have (on average 1.3907937999060591) internal successors, (2961), 2190 states have internal predecessors, (2961), 893 states have call successors, (893), 231 states have call predecessors, (893), 230 states have return successors, (904), 870 states have call predecessors, (904), 891 states have call successors, (904) [2022-11-03 01:39:10,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3253 states to 3253 states and 4758 transitions. [2022-11-03 01:39:10,870 INFO L78 Accepts]: Start accepts. Automaton has 3253 states and 4758 transitions. Word has length 223 [2022-11-03 01:39:10,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:39:10,876 INFO L495 AbstractCegarLoop]: Abstraction has 3253 states and 4758 transitions. [2022-11-03 01:39:10,878 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), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2022-11-03 01:39:10,878 INFO L276 IsEmpty]: Start isEmpty. Operand 3253 states and 4758 transitions. [2022-11-03 01:39:10,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-11-03 01:39:10,896 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:39:10,897 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:39:10,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:39:10,898 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:39:10,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:39:10,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1955662956, now seen corresponding path program 1 times [2022-11-03 01:39:10,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:39:10,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402598160] [2022-11-03 01:39:10,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:39:10,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:39:11,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:39:12,278 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 847 trivial. 0 not checked. [2022-11-03 01:39:12,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:39:12,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402598160] [2022-11-03 01:39:12,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402598160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:39:12,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:39:12,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:39:12,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137517744] [2022-11-03 01:39:12,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:39:12,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:39:12,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:39:12,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:39:12,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:39:12,283 INFO L87 Difference]: Start difference. First operand 3253 states and 4758 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-03 01:39:14,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:39:16,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:39:19,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:39:22,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:39:24,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:39:27,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:39:29,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:39:33,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:39:36,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:39:39,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:39:41,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:39:43,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:39:45,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:39:48,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:39:50,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:39:52,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 01:39:55,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:39:57,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:39:59,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:40:00,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:40:00,708 INFO L93 Difference]: Finished difference Result 7516 states and 10908 transitions. [2022-11-03 01:40:00,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:40:00,709 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 237 [2022-11-03 01:40:00,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:40:00,741 INFO L225 Difference]: With dead ends: 7516 [2022-11-03 01:40:00,741 INFO L226 Difference]: Without dead ends: 4310 [2022-11-03 01:40:00,758 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 [2022-11-03 01:40:00,759 INFO L413 NwaCegarLoop]: 2405 mSDtfsCounter, 740 mSDsluCounter, 2438 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 2 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 4561 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:40:00,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 4561 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 619 Invalid, 16 Unknown, 0 Unchecked, 48.2s Time] [2022-11-03 01:40:00,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4310 states. [2022-11-03 01:40:01,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4310 to 4295. [2022-11-03 01:40:01,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4295 states, 2817 states have (on average 1.3890663826766063) internal successors, (3913), 2918 states have internal predecessors, (3913), 1136 states have call successors, (1136), 342 states have call predecessors, (1136), 341 states have return successors, (1153), 1091 states have call predecessors, (1153), 1134 states have call successors, (1153) [2022-11-03 01:40:01,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4295 states to 4295 states and 6202 transitions. [2022-11-03 01:40:01,082 INFO L78 Accepts]: Start accepts. Automaton has 4295 states and 6202 transitions. Word has length 237 [2022-11-03 01:40:01,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:40:01,086 INFO L495 AbstractCegarLoop]: Abstraction has 4295 states and 6202 transitions. [2022-11-03 01:40:01,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-03 01:40:01,086 INFO L276 IsEmpty]: Start isEmpty. Operand 4295 states and 6202 transitions. [2022-11-03 01:40:01,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-11-03 01:40:01,097 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:40:01,097 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:40:01,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:40:01,098 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:40:01,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:40:01,107 INFO L85 PathProgramCache]: Analyzing trace with hash 505874615, now seen corresponding path program 1 times [2022-11-03 01:40:01,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:40:01,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391292334] [2022-11-03 01:40:01,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:40:01,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:40:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:40:02,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1001 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1001 trivial. 0 not checked. [2022-11-03 01:40:02,630 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:40:02,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391292334] [2022-11-03 01:40:02,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391292334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:40:02,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:40:02,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:40:02,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105412925] [2022-11-03 01:40:02,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:40:02,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:40:02,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:40:02,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:40:02,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:40:02,638 INFO L87 Difference]: Start difference. First operand 4295 states and 6202 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-03 01:40:04,917 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 [] [2022-11-03 01:40:07,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:40:09,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:40:11,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:40:14,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:40:17,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:40:21,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:40:23,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:40:25,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:40:27,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:40:29,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:40:32,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:40:35,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:40:36,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:40:38,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:40:41,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 01:40:42,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:40:44,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:40:46,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:40:47,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:40:47,835 INFO L93 Difference]: Finished difference Result 12707 states and 18496 transitions. [2022-11-03 01:40:47,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:40:47,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 272 [2022-11-03 01:40:47,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:40:47,894 INFO L225 Difference]: With dead ends: 12707 [2022-11-03 01:40:47,894 INFO L226 Difference]: Without dead ends: 8457 [2022-11-03 01:40:47,918 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 [2022-11-03 01:40:47,919 INFO L413 NwaCegarLoop]: 2704 mSDtfsCounter, 2299 mSDsluCounter, 2442 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 1 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2319 SdHoareTripleChecker+Valid, 4862 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.9s IncrementalHoareTripleChecker+Time [2022-11-03 01:40:47,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2319 Valid, 4862 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 589 Invalid, 13 Unknown, 0 Unchecked, 44.9s Time] [2022-11-03 01:40:47,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8457 states. [2022-11-03 01:40:48,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8457 to 8440. [2022-11-03 01:40:48,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8440 states, 5539 states have (on average 1.3899620870193177) internal successors, (7699), 5737 states have internal predecessors, (7699), 2227 states have call successors, (2227), 674 states have call predecessors, (2227), 673 states have return successors, (2342), 2135 states have call predecessors, (2342), 2225 states have call successors, (2342) [2022-11-03 01:40:48,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8440 states to 8440 states and 12268 transitions. [2022-11-03 01:40:48,321 INFO L78 Accepts]: Start accepts. Automaton has 8440 states and 12268 transitions. Word has length 272 [2022-11-03 01:40:48,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:40:48,326 INFO L495 AbstractCegarLoop]: Abstraction has 8440 states and 12268 transitions. [2022-11-03 01:40:48,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-03 01:40:48,327 INFO L276 IsEmpty]: Start isEmpty. Operand 8440 states and 12268 transitions. [2022-11-03 01:40:48,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2022-11-03 01:40:48,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:40:48,335 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:40:48,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 01:40:48,335 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:40:48,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:40:48,336 INFO L85 PathProgramCache]: Analyzing trace with hash 317675800, now seen corresponding path program 1 times [2022-11-03 01:40:48,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:40:48,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093474006] [2022-11-03 01:40:48,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:40:48,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:40:48,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:40:49,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1001 trivial. 0 not checked. [2022-11-03 01:40:49,544 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:40:49,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093474006] [2022-11-03 01:40:49,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093474006] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:40:49,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:40:49,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:40:49,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175699474] [2022-11-03 01:40:49,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:40:49,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:40:49,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:40:49,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:40:49,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:40:49,547 INFO L87 Difference]: Start difference. First operand 8440 states and 12268 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-03 01:40:51,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:40:54,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:40:55,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:40:56,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:41:00,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:41:02,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:41:05,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:41:07,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:41:08,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:41:10,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:41:12,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:41:14,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:41:16,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:41:19,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:41:22,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:41:24,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 01:41:26,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:41:29,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:41:32,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:41:34,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:41:36,851 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 [] [2022-11-03 01:41:37,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:41:37,312 INFO L93 Difference]: Finished difference Result 13338 states and 19309 transitions. [2022-11-03 01:41:37,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:41:37,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 294 [2022-11-03 01:41:37,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:41:37,351 INFO L225 Difference]: With dead ends: 13338 [2022-11-03 01:41:37,351 INFO L226 Difference]: Without dead ends: 4944 [2022-11-03 01:41:37,394 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 [2022-11-03 01:41:37,395 INFO L413 NwaCegarLoop]: 2193 mSDtfsCounter, 5 mSDsluCounter, 2472 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 1 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4379 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.6s IncrementalHoareTripleChecker+Time [2022-11-03 01:41:37,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 4379 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 576 Invalid, 15 Unknown, 0 Unchecked, 47.6s Time] [2022-11-03 01:41:37,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4944 states. [2022-11-03 01:41:37,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4944 to 4939. [2022-11-03 01:41:37,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4939 states, 3225 states have (on average 1.383875968992248) internal successors, (4463), 3353 states have internal predecessors, (4463), 1295 states have call successors, (1295), 419 states have call predecessors, (1295), 418 states have return successors, (1344), 1233 states have call predecessors, (1344), 1293 states have call successors, (1344) [2022-11-03 01:41:37,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4939 states to 4939 states and 7102 transitions. [2022-11-03 01:41:37,608 INFO L78 Accepts]: Start accepts. Automaton has 4939 states and 7102 transitions. Word has length 294 [2022-11-03 01:41:37,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:41:37,609 INFO L495 AbstractCegarLoop]: Abstraction has 4939 states and 7102 transitions. [2022-11-03 01:41:37,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-03 01:41:37,610 INFO L276 IsEmpty]: Start isEmpty. Operand 4939 states and 7102 transitions. [2022-11-03 01:41:37,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-11-03 01:41:37,618 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:41:37,618 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 11, 11, 11, 11, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:41:37,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 01:41:37,619 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:41:37,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:41:37,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1342580117, now seen corresponding path program 1 times [2022-11-03 01:41:37,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:41:37,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28964117] [2022-11-03 01:41:37,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:41:37,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:41:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:41:39,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1194 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1191 trivial. 0 not checked. [2022-11-03 01:41:39,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:41:39,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28964117] [2022-11-03 01:41:39,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28964117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:41:39,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:41:39,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:41:39,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458980489] [2022-11-03 01:41:39,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:41:39,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:41:39,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:41:39,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:41:39,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:41:39,068 INFO L87 Difference]: Start difference. First operand 4939 states and 7102 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-03 01:41:41,345 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 [] [2022-11-03 01:41:44,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:41:46,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:41:50,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:41:52,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:41:55,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:41:58,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:42:00,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:42:03,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:05,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:07,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:09,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:12,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:42:15,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:42:18,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:42:20,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:22,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:42:24,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:42:26,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:42:28,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:42:30,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:32,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:42:35,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 01:42:35,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:42:35,347 INFO L93 Difference]: Finished difference Result 11821 states and 17026 transitions. [2022-11-03 01:42:35,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:42:35,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 318 [2022-11-03 01:42:35,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:42:35,398 INFO L225 Difference]: With dead ends: 11821 [2022-11-03 01:42:35,398 INFO L226 Difference]: Without dead ends: 7416 [2022-11-03 01:42:35,420 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 [2022-11-03 01:42:35,420 INFO L413 NwaCegarLoop]: 3252 mSDtfsCounter, 1748 mSDsluCounter, 2402 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 20 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1765 SdHoareTripleChecker+Valid, 5376 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:42:35,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1765 Valid, 5376 Invalid, 806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 769 Invalid, 17 Unknown, 0 Unchecked, 56.0s Time] [2022-11-03 01:42:35,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7416 states. [2022-11-03 01:42:35,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7416 to 7323. [2022-11-03 01:42:35,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7323 states, 4824 states have (on average 1.3855721393034826) internal successors, (6684), 4998 states have internal predecessors, (6684), 1879 states have call successors, (1879), 620 states have call predecessors, (1879), 619 states have return successors, (1963), 1797 states have call predecessors, (1963), 1877 states have call successors, (1963) [2022-11-03 01:42:35,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7323 states to 7323 states and 10526 transitions. [2022-11-03 01:42:35,830 INFO L78 Accepts]: Start accepts. Automaton has 7323 states and 10526 transitions. Word has length 318 [2022-11-03 01:42:35,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:42:35,832 INFO L495 AbstractCegarLoop]: Abstraction has 7323 states and 10526 transitions. [2022-11-03 01:42:35,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-03 01:42:35,833 INFO L276 IsEmpty]: Start isEmpty. Operand 7323 states and 10526 transitions. [2022-11-03 01:42:35,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2022-11-03 01:42:35,846 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:42:35,846 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 11, 11, 11, 11, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:42:35,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 01:42:35,847 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:42:35,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:42:35,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1644618281, now seen corresponding path program 1 times [2022-11-03 01:42:35,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:42:35,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86373723] [2022-11-03 01:42:35,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:42:35,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:42:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:43:03,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1196 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1193 trivial. 0 not checked. [2022-11-03 01:43:03,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:43:03,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86373723] [2022-11-03 01:43:03,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86373723] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:43:03,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993024750] [2022-11-03 01:43:03,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:43:03,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:43:03,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c077bea7-ab6d-41f9-880c-9f4d5f14dcc3/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:43:03,849 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c077bea7-ab6d-41f9-880c-9f4d5f14dcc3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:43:03,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c077bea7-ab6d-41f9-880c-9f4d5f14dcc3/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 01:43:07,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:43:08,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 13735 conjuncts, 144 conjunts are in the unsatisfiable core [2022-11-03 01:43:08,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:43:08,171 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-03 01:43:08,190 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-03 01:43:11,247 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 01:43:11,258 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 01:43:11,711 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 01:43:11,723 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 01:43:12,027 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 01:43:12,065 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 01:43:12,375 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 01:43:12,396 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 01:43:12,742 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 01:43:12,784 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 01:43:13,176 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 01:43:13,200 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 01:43:13,528 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 01:43:13,568 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 01:43:13,872 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 01:43:13,905 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 01:43:14,244 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 01:43:14,298 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 01:43:14,646 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 01:43:14,668 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 01:43:14,987 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 01:43:15,010 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 01:43:15,334 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 01:43:15,354 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 01:43:15,716 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 01:43:15,759 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 01:43:16,228 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 01:43:16,240 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-03 01:43:18,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:43:18,014 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-03 01:43:18,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:43:18,046 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-03 01:43:20,260 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:43:20,260 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 57 [2022-11-03 01:43:20,321 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:43:20,321 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 54 [2022-11-03 01:43:20,358 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2022-11-03 01:43:20,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1196 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 1013 trivial. 0 not checked. [2022-11-03 01:43:20,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:43:24,007 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_$Pointer$.offset| |c_~#registered_fb~0.base|)) (.cse6 (select |c_#memory_$Pointer$.base| |c_~#registered_fb~0.base|))) (and (forall ((v_file_fb_info_~fbidx~0_10 Int) (v_file_fb_info_~file.offset_11 Int) (|~#registered_fb~0.offset| Int) (|aux_div_v_fb_mmap_#t~ret966#1.base_7_94| Int) (v_file_fb_info_~file.base_11 Int)) (let ((.cse5 (+ (* 8 v_file_fb_info_~fbidx~0_10) |~#registered_fb~0.offset|))) (let ((.cse2 (select .cse6 .cse5))) (let ((.cse1 (+ (select .cse4 .cse5) .cse2)) (.cse0 (* 18446744073709551616 |aux_div_v_fb_mmap_#t~ret966#1.base_7_94|))) (or (<= (+ 18446744073709551616 .cse0) .cse1) (not (= 0 .cse2)) (< .cse1 .cse0) (not (= (mod .cse1 18446744073709551616) (mod (let ((.cse3 (+ 436 v_file_fb_info_~file.offset_11))) (+ (select (select |c_#memory_$Pointer$.base| v_file_fb_info_~file.base_11) .cse3) (select (select |c_#memory_$Pointer$.offset| v_file_fb_info_~file.base_11) .cse3))) 18446744073709551616))) (= .cse1 .cse0)))))) (forall ((v_file_fb_info_~fbidx~0_10 Int) (v_file_fb_info_~file.offset_11 Int) (|~#registered_fb~0.offset| Int) (|aux_div_v_fb_mmap_#t~ret966#1.base_7_94| Int) (v_file_fb_info_~file.base_11 Int)) (let ((.cse8 (let ((.cse10 (+ (* 8 v_file_fb_info_~fbidx~0_10) |~#registered_fb~0.offset|))) (+ (select .cse4 .cse10) (select .cse6 .cse10)))) (.cse7 (* 18446744073709551616 |aux_div_v_fb_mmap_#t~ret966#1.base_7_94|))) (or (<= (+ 18446744073709551616 .cse7) .cse8) (< .cse8 .cse7) (not (= (mod .cse8 18446744073709551616) (mod (let ((.cse9 (+ 436 v_file_fb_info_~file.offset_11))) (+ (select (select |c_#memory_$Pointer$.base| v_file_fb_info_~file.base_11) .cse9) (select (select |c_#memory_$Pointer$.offset| v_file_fb_info_~file.base_11) .cse9))) 18446744073709551616))) (= .cse8 .cse7)))))) is different from false [2022-11-03 01:43:24,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993024750] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:43:24,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [378234772] [2022-11-03 01:43:24,043 INFO L159 IcfgInterpreter]: Started Sifa with 152 locations of interest [2022-11-03 01:43:24,043 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:43:24,046 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:43:24,050 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:43:24,050 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:46:08,140 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-03 01:46:32,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:46:36,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:46:41,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:46:47,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:46:52,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:46:58,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:46:58,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:46:58,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:46:58,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:46:58,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:46:58,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:46:58,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:46:59,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:46:59,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:47:44,922 INFO L244 Elim1Store]: Index analysis took 72860 ms