./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--sgi-xp--xpc.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d9a1fe-66ea-4a44-b03a-021763b11a6b/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d9a1fe-66ea-4a44-b03a-021763b11a6b/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d9a1fe-66ea-4a44-b03a-021763b11a6b/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d9a1fe-66ea-4a44-b03a-021763b11a6b/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--sgi-xp--xpc.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d9a1fe-66ea-4a44-b03a-021763b11a6b/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d9a1fe-66ea-4a44-b03a-021763b11a6b/bin/utaipan-TEXQjIfE4P --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 fc0d7108b14cf7ade4256acdb7ea5c36ccda70628af318ac7331527caf0f1ef8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:03:11,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:03:11,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:03:11,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:03:11,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:03:11,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:03:11,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:03:11,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:03:11,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:03:11,758 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:03:11,759 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:03:11,761 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:03:11,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:03:11,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:03:11,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:03:11,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:03:11,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:03:11,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:03:11,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:03:11,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:03:11,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:03:11,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:03:11,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:03:11,793 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:03:11,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:03:11,803 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:03:11,803 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:03:11,806 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:03:11,807 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:03:11,808 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:03:11,809 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:03:11,810 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:03:11,812 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:03:11,813 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:03:11,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:03:11,815 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:03:11,816 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:03:11,817 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:03:11,817 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:03:11,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:03:11,819 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:03:11,820 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d9a1fe-66ea-4a44-b03a-021763b11a6b/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 01:03:11,866 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:03:11,866 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:03:11,867 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:03:11,867 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:03:11,874 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:03:11,875 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:03:11,875 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:03:11,875 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:03:11,875 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:03:11,875 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:03:11,877 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:03:11,877 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:03:11,877 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:03:11,877 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:03:11,878 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:03:11,878 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:03:11,878 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:03:11,878 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:03:11,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:03:11,880 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:03:11,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:03:11,880 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:03:11,881 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:03:11,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:03:11,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:03:11,881 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:03:11,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:03:11,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:03:11,884 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:03:11,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:03:11,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:03:11,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:03:11,885 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:03:11,885 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:03:11,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:03:11,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:03:11,886 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:03:11,886 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:03:11,887 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d9a1fe-66ea-4a44-b03a-021763b11a6b/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d9a1fe-66ea-4a44-b03a-021763b11a6b/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc0d7108b14cf7ade4256acdb7ea5c36ccda70628af318ac7331527caf0f1ef8 [2021-11-21 01:03:12,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:03:12,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:03:12,241 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:03:12,243 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:03:12,244 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:03:12,245 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d9a1fe-66ea-4a44-b03a-021763b11a6b/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--sgi-xp--xpc.ko-main.cil.out.i [2021-11-21 01:03:12,311 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d9a1fe-66ea-4a44-b03a-021763b11a6b/bin/utaipan-TEXQjIfE4P/data/419d1dd25/af12d43d8d704c8aa17fa07fd637e98b/FLAG91e5f051f [2021-11-21 01:03:13,375 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:03:13,376 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d9a1fe-66ea-4a44-b03a-021763b11a6b/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--sgi-xp--xpc.ko-main.cil.out.i [2021-11-21 01:03:13,450 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d9a1fe-66ea-4a44-b03a-021763b11a6b/bin/utaipan-TEXQjIfE4P/data/419d1dd25/af12d43d8d704c8aa17fa07fd637e98b/FLAG91e5f051f [2021-11-21 01:03:13,676 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d9a1fe-66ea-4a44-b03a-021763b11a6b/bin/utaipan-TEXQjIfE4P/data/419d1dd25/af12d43d8d704c8aa17fa07fd637e98b [2021-11-21 01:03:13,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:03:13,681 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:03:13,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:03:13,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:03:13,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:03:13,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:03:13" (1/1) ... [2021-11-21 01:03:13,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5007152d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:03:13, skipping insertion in model container [2021-11-21 01:03:13,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:03:13" (1/1) ... [2021-11-21 01:03:13,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:03:13,927 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:03:16,852 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_96d9a1fe-66ea-4a44-b03a-021763b11a6b/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--sgi-xp--xpc.ko-main.cil.out.i[329752,329765] [2021-11-21 01:03:17,000 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:03:17,110 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:03:17,656 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_96d9a1fe-66ea-4a44-b03a-021763b11a6b/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--sgi-xp--xpc.ko-main.cil.out.i[329752,329765] [2021-11-21 01:03:17,674 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:03:17,837 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:03:17,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:03:17 WrapperNode [2021-11-21 01:03:17,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:03:17,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:03:17,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:03:17,839 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:03:17,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:03:17" (1/1) ... [2021-11-21 01:03:17,987 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:03:17" (1/1) ... [2021-11-21 01:03:18,239 INFO L137 Inliner]: procedures = 380, calls = 3772, calls flagged for inlining = 111, calls inlined = 106, statements flattened = 6716 [2021-11-21 01:03:18,239 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:03:18,240 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:03:18,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:03:18,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:03:18,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:03:17" (1/1) ... [2021-11-21 01:03:18,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:03:17" (1/1) ... [2021-11-21 01:03:18,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:03:17" (1/1) ... [2021-11-21 01:03:18,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:03:17" (1/1) ... [2021-11-21 01:03:18,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:03:17" (1/1) ... [2021-11-21 01:03:18,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:03:17" (1/1) ... [2021-11-21 01:03:18,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:03:17" (1/1) ... [2021-11-21 01:03:18,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:03:18,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:03:18,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:03:18,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:03:18,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:03:17" (1/1) ... [2021-11-21 01:03:18,839 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:03:18,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d9a1fe-66ea-4a44-b03a-021763b11a6b/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:03:18,871 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d9a1fe-66ea-4a44-b03a-021763b11a6b/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:03:18,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d9a1fe-66ea-4a44-b03a-021763b11a6b/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:03:18,931 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_setup_msg_structures_uv [2021-11-21 01:03:18,931 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_setup_msg_structures_uv [2021-11-21 01:03:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-21 01:03:18,932 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-21 01:03:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_heartbeat_init_uv [2021-11-21 01:03:18,932 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_heartbeat_init_uv [2021-11-21 01:03:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2021-11-21 01:03:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_allow_hb_uv [2021-11-21 01:03:18,932 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_allow_hb_uv [2021-11-21 01:03:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_teardown_partitions_uv [2021-11-21 01:03:18,933 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_teardown_partitions_uv [2021-11-21 01:03:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_kthread_waitmsgs [2021-11-21 01:03:18,933 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_kthread_waitmsgs [2021-11-21 01:03:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_chctl_opencomplete_uv [2021-11-21 01:03:18,933 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_chctl_opencomplete_uv [2021-11-21 01:03:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 01:03:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 01:03:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2021-11-21 01:03:18,934 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2021-11-21 01:03:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_teardown_msg_structures_uv [2021-11-21 01:03:18,934 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_teardown_msg_structures_uv [2021-11-21 01:03:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_teardown_rsvd_page [2021-11-21 01:03:18,934 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_teardown_rsvd_page [2021-11-21 01:03:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_partition_disengaged [2021-11-21 01:03:18,935 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_partition_disengaged [2021-11-21 01:03:18,935 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_wakeup_channel_mgr [2021-11-21 01:03:18,935 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_wakeup_channel_mgr [2021-11-21 01:03:18,935 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-11-21 01:03:18,935 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-11-21 01:03:18,935 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-21 01:03:18,935 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-21 01:03:18,936 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_return [2021-11-21 01:03:18,936 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_return [2021-11-21 01:03:18,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 01:03:18,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 01:03:18,936 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_kmalloc_cacheline_aligned [2021-11-21 01:03:18,936 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_kmalloc_cacheline_aligned [2021-11-21 01:03:18,936 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_setup_partitions_uv [2021-11-21 01:03:18,936 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_setup_partitions_uv [2021-11-21 01:03:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_offline_heartbeat_uv [2021-11-21 01:03:18,937 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_offline_heartbeat_uv [2021-11-21 01:03:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_release_gru_mq_irq_uv [2021-11-21 01:03:18,937 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_release_gru_mq_irq_uv [2021-11-21 01:03:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~int~TO~int [2021-11-21 01:03:18,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~int~TO~int [2021-11-21 01:03:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-21 01:03:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_notify_sender_uv [2021-11-21 01:03:18,938 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_notify_sender_uv [2021-11-21 01:03:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_die_deactivate [2021-11-21 01:03:18,939 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_die_deactivate [2021-11-21 01:03:18,940 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_process_connect [2021-11-21 01:03:18,940 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_process_connect [2021-11-21 01:03:18,940 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-21 01:03:18,941 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-21 01:03:18,941 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2021-11-21 01:03:18,941 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2021-11-21 01:03:18,942 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_die_notifier [2021-11-21 01:03:18,942 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_die_notifier [2021-11-21 01:03:18,942 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_check_remote_hb [2021-11-21 01:03:18,942 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_check_remote_hb [2021-11-21 01:03:18,943 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-21 01:03:18,943 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-21 01:03:18,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-21 01:03:18,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-21 01:03:18,944 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_init_fifo_uv [2021-11-21 01:03:18,944 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_init_fifo_uv [2021-11-21 01:03:18,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cached_activate_gru_mq_desc_mutex_of_xpc_partition_uv [2021-11-21 01:03:18,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cached_activate_gru_mq_desc_mutex_of_xpc_partition_uv [2021-11-21 01:03:18,944 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_msgqueue_ref [2021-11-21 01:03:18,944 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_msgqueue_ref [2021-11-21 01:03:18,944 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_received_payload_uv [2021-11-21 01:03:18,945 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_received_payload_uv [2021-11-21 01:03:18,945 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-21 01:03:18,945 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-21 01:03:18,945 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_kthread_start [2021-11-21 01:03:18,945 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_kthread_start [2021-11-21 01:03:18,945 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_part_ref [2021-11-21 01:03:18,946 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_part_ref [2021-11-21 01:03:18,946 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_create_kthreads [2021-11-21 01:03:18,946 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_create_kthreads [2021-11-21 01:03:18,947 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2021-11-21 01:03:18,947 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2021-11-21 01:03:18,947 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_local_activate_IRQ_uv [2021-11-21 01:03:18,947 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_local_activate_IRQ_uv [2021-11-21 01:03:18,948 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-21 01:03:18,948 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-21 01:03:18,948 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_exit_uv [2021-11-21 01:03:18,948 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_exit_uv [2021-11-21 01:03:18,948 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-21 01:03:18,949 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-21 01:03:18,949 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_put_fifo_entry_uv [2021-11-21 01:03:18,950 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_put_fifo_entry_uv [2021-11-21 01:03:18,950 INFO L130 BoogieDeclarations]: Found specification of procedure uv_blade_to_pnode [2021-11-21 01:03:18,951 INFO L138 BoogieDeclarations]: Found implementation of procedure uv_blade_to_pnode [2021-11-21 01:03:18,951 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_process_activate_IRQ_rcvd_uv [2021-11-21 01:03:18,951 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_process_activate_IRQ_rcvd_uv [2021-11-21 01:03:18,951 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_activate_IRQ_uv [2021-11-21 01:03:18,951 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_activate_IRQ_uv [2021-11-21 01:03:18,951 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_payload_uv [2021-11-21 01:03:18,952 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_payload_uv [2021-11-21 01:03:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_free_msg_slot_uv [2021-11-21 01:03:18,952 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_free_msg_slot_uv [2021-11-21 01:03:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cached_activate_gru_mq_desc_mutex_of_xpc_partition_uv [2021-11-21 01:03:18,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cached_activate_gru_mq_desc_mutex_of_xpc_partition_uv [2021-11-21 01:03:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:03:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_indicate_partition_engaged_uv [2021-11-21 01:03:18,953 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_indicate_partition_engaged_uv [2021-11-21 01:03:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_process_openclose_chctl_flags [2021-11-21 01:03:18,953 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_process_openclose_chctl_flags [2021-11-21 01:03:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:03:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_process_msg_chctl_flags_uv [2021-11-21 01:03:18,955 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_process_msg_chctl_flags_uv [2021-11-21 01:03:18,958 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-21 01:03:18,958 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-21 01:03:18,958 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-21 01:03:18,958 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_msgqueue_deref [2021-11-21 01:03:18,958 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_msgqueue_deref [2021-11-21 01:03:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_chctl_closereply_uv [2021-11-21 01:03:18,960 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_chctl_closereply_uv [2021-11-21 01:03:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-11-21 01:03:18,960 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-11-21 01:03:18,967 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-21 01:03:18,967 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-21 01:03:18,967 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_connect_channel [2021-11-21 01:03:18,967 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_connect_channel [2021-11-21 01:03:18,967 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_cache_remote_gru_mq_desc_uv [2021-11-21 01:03:18,967 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_cache_remote_gru_mq_desc_uv [2021-11-21 01:03:18,968 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_teardown_ch_structures_uv [2021-11-21 01:03:18,968 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_teardown_ch_structures_uv [2021-11-21 01:03:18,968 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~int [2021-11-21 01:03:18,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~int [2021-11-21 01:03:18,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:03:18,968 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_request_partition_activation_uv [2021-11-21 01:03:18,968 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_request_partition_activation_uv [2021-11-21 01:03:18,968 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_activating [2021-11-21 01:03:18,968 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_activating [2021-11-21 01:03:18,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 01:03:18,969 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_disconnect_callout [2021-11-21 01:03:18,969 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_disconnect_callout [2021-11-21 01:03:18,969 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_deactivate_partition [2021-11-21 01:03:18,969 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_deactivate_partition [2021-11-21 01:03:18,969 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_indicate_partition_disengaged_uv [2021-11-21 01:03:18,969 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_indicate_partition_disengaged_uv [2021-11-21 01:03:18,969 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_disconnect_channel [2021-11-21 01:03:18,970 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_disconnect_channel [2021-11-21 01:03:18,970 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2021-11-21 01:03:18,970 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2021-11-21 01:03:18,970 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~int [2021-11-21 01:03:18,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~int [2021-11-21 01:03:18,970 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-21 01:03:18,970 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-21 01:03:18,970 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-21 01:03:18,970 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-21 01:03:18,971 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-21 01:03:18,971 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-21 01:03:18,971 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_channel_mgr [2021-11-21 01:03:18,971 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_channel_mgr [2021-11-21 01:03:18,971 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_save_remote_msgqueue_pa_uv [2021-11-21 01:03:18,971 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_save_remote_msgqueue_pa_uv [2021-11-21 01:03:18,971 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_chctl_openrequest_uv [2021-11-21 01:03:18,971 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_chctl_openrequest_uv [2021-11-21 01:03:18,972 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_heartbeat_exit_uv [2021-11-21 01:03:18,972 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_heartbeat_exit_uv [2021-11-21 01:03:18,972 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_setup_ch_structures [2021-11-21 01:03:18,972 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_setup_ch_structures [2021-11-21 01:03:18,972 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-21 01:03:18,972 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-21 01:03:18,972 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2021-11-21 01:03:18,972 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2021-11-21 01:03:18,972 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_any_partition_engaged_uv [2021-11-21 01:03:18,973 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_any_partition_engaged_uv [2021-11-21 01:03:18,973 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-21 01:03:18,973 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-21 01:03:18,973 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-11-21 01:03:18,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-11-21 01:03:18,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 01:03:18,973 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_get_rsvd_page_pa [2021-11-21 01:03:18,973 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_get_rsvd_page_pa [2021-11-21 01:03:18,974 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_activate_partition [2021-11-21 01:03:18,974 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_activate_partition [2021-11-21 01:03:18,974 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_activate_IRQ_part_uv [2021-11-21 01:03:18,974 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_activate_IRQ_part_uv [2021-11-21 01:03:18,974 INFO L130 BoogieDeclarations]: Found specification of procedure uv_cpu_to_blade_id [2021-11-21 01:03:18,974 INFO L138 BoogieDeclarations]: Found implementation of procedure uv_cpu_to_blade_id [2021-11-21 01:03:18,974 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_initiate_discovery [2021-11-21 01:03:18,974 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_initiate_discovery [2021-11-21 01:03:18,974 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-21 01:03:18,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-21 01:03:18,975 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_request_partition_reactivation_uv [2021-11-21 01:03:18,975 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_request_partition_reactivation_uv [2021-11-21 01:03:18,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 01:03:18,975 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_activate_kthreads [2021-11-21 01:03:18,975 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_activate_kthreads [2021-11-21 01:03:18,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:03:18,975 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_partition_engaged_uv [2021-11-21 01:03:18,977 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_partition_engaged_uv [2021-11-21 01:03:18,977 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-21 01:03:18,977 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-21 01:03:18,978 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_gru_msg [2021-11-21 01:03:18,978 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_gru_msg [2021-11-21 01:03:18,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 01:03:18,978 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 01:03:18,978 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_create_gru_mq_uv [2021-11-21 01:03:18,979 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_create_gru_mq_uv [2021-11-21 01:03:18,979 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_reboot_notifier [2021-11-21 01:03:18,979 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_reboot_notifier [2021-11-21 01:03:18,979 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_part_deref [2021-11-21 01:03:18,979 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_part_deref [2021-11-21 01:03:18,979 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_chctl_closerequest_uv [2021-11-21 01:03:18,979 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_chctl_closerequest_uv [2021-11-21 01:03:18,979 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_disallow_all_hbs_uv [2021-11-21 01:03:18,980 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_disallow_all_hbs_uv [2021-11-21 01:03:18,980 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_timeout_partition_disengage [2021-11-21 01:03:18,980 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_timeout_partition_disengage [2021-11-21 01:03:18,980 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_of_node [2021-11-21 01:03:18,980 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_of_node [2021-11-21 01:03:18,980 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_init_mq_node [2021-11-21 01:03:18,980 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_init_mq_node [2021-11-21 01:03:18,980 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_destroy_gru_mq_uv [2021-11-21 01:03:18,981 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_destroy_gru_mq_uv [2021-11-21 01:03:18,981 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_discovery [2021-11-21 01:03:18,981 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_discovery [2021-11-21 01:03:18,981 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_get_partition_rsvd_page_pa_uv [2021-11-21 01:03:18,981 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_get_partition_rsvd_page_pa_uv [2021-11-21 01:03:18,981 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-21 01:03:18,981 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-21 01:03:18,981 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_activate_IRQ_ch_uv [2021-11-21 01:03:18,982 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_activate_IRQ_ch_uv [2021-11-21 01:03:18,982 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_increment_heartbeat_uv [2021-11-21 01:03:18,982 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_increment_heartbeat_uv [2021-11-21 01:03:18,982 INFO L130 BoogieDeclarations]: Found specification of procedure put_online_cpus [2021-11-21 01:03:18,982 INFO L138 BoogieDeclarations]: Found implementation of procedure put_online_cpus [2021-11-21 01:03:18,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:03:18,982 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_process_sent_chctl_flags [2021-11-21 01:03:18,982 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_process_sent_chctl_flags [2021-11-21 01:03:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_get_remote_heartbeat_uv [2021-11-21 01:03:18,983 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_get_remote_heartbeat_uv [2021-11-21 01:03:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 01:03:18,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 01:03:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_teardown_partitions [2021-11-21 01:03:18,988 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_teardown_partitions [2021-11-21 01:03:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_process_disconnect [2021-11-21 01:03:18,988 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_process_disconnect [2021-11-21 01:03:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_do_exit [2021-11-21 01:03:18,989 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_do_exit [2021-11-21 01:03:18,989 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_online_heartbeat_uv [2021-11-21 01:03:18,989 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_online_heartbeat_uv [2021-11-21 01:03:18,989 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_get_fifo_entry_uv [2021-11-21 01:03:18,990 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_get_fifo_entry_uv [2021-11-21 01:03:18,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_xpc_registration [2021-11-21 01:03:18,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_xpc_registration [2021-11-21 01:03:18,991 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_disallow_hb_uv [2021-11-21 01:03:18,991 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_disallow_hb_uv [2021-11-21 01:03:18,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:03:18,991 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_chctl_openreply_uv [2021-11-21 01:03:18,991 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_chctl_openreply_uv [2021-11-21 01:03:18,991 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_hb_checker [2021-11-21 01:03:18,991 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_hb_checker [2021-11-21 01:03:18,991 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2021-11-21 01:03:18,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2021-11-21 01:03:18,992 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-11-21 01:03:18,992 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-11-21 01:03:18,992 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_setup_ch_structures_uv [2021-11-21 01:03:18,992 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_setup_ch_structures_uv [2021-11-21 01:03:18,992 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_setup_rsvd_page_uv [2021-11-21 01:03:18,992 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_setup_rsvd_page_uv [2021-11-21 01:03:18,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:03:18,992 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2021-11-21 01:03:18,992 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2021-11-21 01:03:18,993 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-21 01:03:18,993 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-21 01:03:18,993 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_request_partition_deactivation_uv [2021-11-21 01:03:18,993 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_request_partition_deactivation_uv [2021-11-21 01:03:18,993 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_get_chctl_all_flags_uv [2021-11-21 01:03:18,993 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_get_chctl_all_flags_uv [2021-11-21 01:03:18,993 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_gru_mq_watchlist_free_uv [2021-11-21 01:03:18,993 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_gru_mq_watchlist_free_uv [2021-11-21 01:03:18,993 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_partition_going_down [2021-11-21 01:03:18,994 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_partition_going_down [2021-11-21 01:03:18,994 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2021-11-21 01:03:18,994 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2021-11-21 01:03:18,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:03:18,994 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-21 01:03:18,994 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 01:03:18,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 01:03:18,994 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-11-21 01:03:18,995 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-11-21 01:03:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-21 01:03:18,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-21 01:03:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-21 01:03:18,995 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-21 01:03:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-21 01:03:18,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-21 01:03:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_sysctl_table [2021-11-21 01:03:18,995 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_sysctl_table [2021-11-21 01:03:18,996 INFO L130 BoogieDeclarations]: Found specification of procedure uv_gpa [2021-11-21 01:03:18,996 INFO L138 BoogieDeclarations]: Found implementation of procedure uv_gpa [2021-11-21 01:03:18,996 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-21 01:03:18,996 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-21 01:03:18,996 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~int~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-21 01:03:18,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~int~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-21 01:03:18,996 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_get_deliverable_payload_uv [2021-11-21 01:03:18,996 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_get_deliverable_payload_uv [2021-11-21 01:03:18,996 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_notify_senders_of_disconnect_uv [2021-11-21 01:03:18,997 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_notify_senders_of_disconnect_uv [2021-11-21 01:03:18,997 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2021-11-21 01:03:18,997 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2021-11-21 01:03:18,997 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_make_first_contact_uv [2021-11-21 01:03:18,997 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_make_first_contact_uv [2021-11-21 01:03:18,997 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_n_of_deliverable_payloads_uv [2021-11-21 01:03:18,997 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_n_of_deliverable_payloads_uv [2021-11-21 01:03:18,997 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-21 01:03:18,997 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-21 01:03:18,998 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_get_remote_rp [2021-11-21 01:03:18,998 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_get_remote_rp [2021-11-21 01:03:18,998 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-11-21 01:03:18,998 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-11-21 01:03:18,998 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_hb_beater [2021-11-21 01:03:18,998 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_hb_beater [2021-11-21 01:03:18,998 INFO L130 BoogieDeclarations]: Found specification of procedure is_uv_system [2021-11-21 01:03:18,998 INFO L138 BoogieDeclarations]: Found implementation of procedure is_uv_system [2021-11-21 01:03:18,998 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-21 01:03:18,999 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-21 01:03:18,999 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-21 01:03:18,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-21 01:03:18,999 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-21 01:03:18,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-21 01:03:18,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:03:18,999 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-21 01:03:18,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-21 01:03:18,999 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-21 01:03:19,000 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-21 01:03:19,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:03:19,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:03:19,000 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_assume_partition_disengaged_uv [2021-11-21 01:03:19,000 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_assume_partition_disengaged_uv [2021-11-21 01:03:19,000 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-21 01:03:19,000 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-21 01:03:19,000 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_cancel_partition_deactivation_request_uv [2021-11-21 01:03:19,001 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_cancel_partition_deactivation_request_uv [2021-11-21 01:03:20,095 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:03:20,107 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:03:31,466 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:03:33,798 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:03:33,798 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-21 01:03:33,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:03:33 BoogieIcfgContainer [2021-11-21 01:03:33,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:03:33,809 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:03:33,809 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:03:33,812 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:03:33,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:03:13" (1/3) ... [2021-11-21 01:03:33,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29cce6b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:03:33, skipping insertion in model container [2021-11-21 01:03:33,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:03:17" (2/3) ... [2021-11-21 01:03:33,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29cce6b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:03:33, skipping insertion in model container [2021-11-21 01:03:33,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:03:33" (3/3) ... [2021-11-21 01:03:33,819 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--misc--sgi-xp--xpc.ko-main.cil.out.i [2021-11-21 01:03:33,825 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:03:33,826 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:03:33,906 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:03:33,915 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:03:33,915 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:03:34,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 2290 states, 1382 states have (on average 1.3596237337192474) internal successors, (1879), 1492 states have internal predecessors, (1879), 746 states have call successors, (746), 160 states have call predecessors, (746), 160 states have return successors, (746), 711 states have call predecessors, (746), 746 states have call successors, (746) [2021-11-21 01:03:34,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-21 01:03:34,019 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:03:34,020 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:03:34,021 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:03:34,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:03:34,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1373141069, now seen corresponding path program 1 times [2021-11-21 01:03:34,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:03:34,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203524426] [2021-11-21 01:03:34,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:03:34,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:03:34,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:03:34,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:03:34,911 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:03:34,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203524426] [2021-11-21 01:03:34,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203524426] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:03:34,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:03:34,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:03:34,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108355505] [2021-11-21 01:03:34,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:03:34,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:03:34,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:03:34,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:03:34,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:03:34,963 INFO L87 Difference]: Start difference. First operand has 2290 states, 1382 states have (on average 1.3596237337192474) internal successors, (1879), 1492 states have internal predecessors, (1879), 746 states have call successors, (746), 160 states have call predecessors, (746), 160 states have return successors, (746), 711 states have call predecessors, (746), 746 states have call successors, (746) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:03:38,086 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:03:41,952 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:03:42,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:03:42,646 INFO L93 Difference]: Finished difference Result 6473 states and 9771 transitions. [2021-11-21 01:03:42,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:03:42,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-21 01:03:42,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:03:42,710 INFO L225 Difference]: With dead ends: 6473 [2021-11-21 01:03:42,711 INFO L226 Difference]: Without dead ends: 4164 [2021-11-21 01:03:42,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:03:42,745 INFO L933 BasicCegarLoop]: 4283 mSDtfsCounter, 2700 mSDsluCounter, 3112 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2701 SdHoareTripleChecker+Valid, 7098 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:03:42,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2701 Valid, 7098 Invalid, 957 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 954 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2021-11-21 01:03:42,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4164 states. [2021-11-21 01:03:43,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4164 to 4142. [2021-11-21 01:03:43,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4142 states, 2461 states have (on average 1.3319788703778952) internal successors, (3278), 2665 states have internal predecessors, (3278), 1367 states have call successors, (1367), 314 states have call predecessors, (1367), 313 states have return successors, (1358), 1285 states have call predecessors, (1358), 1358 states have call successors, (1358) [2021-11-21 01:03:43,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4142 states to 4142 states and 6003 transitions. [2021-11-21 01:03:43,161 INFO L78 Accepts]: Start accepts. Automaton has 4142 states and 6003 transitions. Word has length 18 [2021-11-21 01:03:43,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:03:43,161 INFO L470 AbstractCegarLoop]: Abstraction has 4142 states and 6003 transitions. [2021-11-21 01:03:43,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:03:43,162 INFO L276 IsEmpty]: Start isEmpty. Operand 4142 states and 6003 transitions. [2021-11-21 01:03:43,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-21 01:03:43,165 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:03:43,166 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:03:43,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:03:43,167 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:03:43,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:03:43,167 INFO L85 PathProgramCache]: Analyzing trace with hash 50824458, now seen corresponding path program 1 times [2021-11-21 01:03:43,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:03:43,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562982380] [2021-11-21 01:03:43,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:03:43,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:03:43,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:03:43,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:03:43,591 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:03:43,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562982380] [2021-11-21 01:03:43,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562982380] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:03:43,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:03:43,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:03:43,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145564343] [2021-11-21 01:03:43,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:03:43,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:03:43,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:03:43,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:03:43,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:03:43,596 INFO L87 Difference]: Start difference. First operand 4142 states and 6003 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-21 01:03:46,815 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:03:48,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:03:48,311 INFO L93 Difference]: Finished difference Result 8070 states and 11976 transitions. [2021-11-21 01:03:48,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:03:48,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2021-11-21 01:03:48,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:03:48,403 INFO L225 Difference]: With dead ends: 8070 [2021-11-21 01:03:48,404 INFO L226 Difference]: Without dead ends: 8066 [2021-11-21 01:03:48,413 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:03:48,416 INFO L933 BasicCegarLoop]: 3896 mSDtfsCounter, 3424 mSDsluCounter, 3212 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3424 SdHoareTripleChecker+Valid, 6824 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:03:48,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3424 Valid, 6824 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 598 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2021-11-21 01:03:48,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8066 states. [2021-11-21 01:03:49,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8066 to 8062. [2021-11-21 01:03:49,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8062 states, 4790 states have (on average 1.334446764091858) internal successors, (6392), 5200 states have internal predecessors, (6392), 2673 states have call successors, (2673), 623 states have call predecessors, (2673), 598 states have return successors, (2902), 2474 states have call predecessors, (2902), 2664 states have call successors, (2902) [2021-11-21 01:03:49,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8062 states to 8062 states and 11967 transitions. [2021-11-21 01:03:49,178 INFO L78 Accepts]: Start accepts. Automaton has 8062 states and 11967 transitions. Word has length 20 [2021-11-21 01:03:49,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:03:49,179 INFO L470 AbstractCegarLoop]: Abstraction has 8062 states and 11967 transitions. [2021-11-21 01:03:49,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-21 01:03:49,181 INFO L276 IsEmpty]: Start isEmpty. Operand 8062 states and 11967 transitions. [2021-11-21 01:03:49,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-21 01:03:49,189 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:03:49,190 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:03:49,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:03:49,190 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:03:49,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:03:49,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1574154877, now seen corresponding path program 1 times [2021-11-21 01:03:49,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:03:49,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392037011] [2021-11-21 01:03:49,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:03:49,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:03:49,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:03:49,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:03:49,517 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:03:49,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392037011] [2021-11-21 01:03:49,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392037011] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:03:49,519 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:03:49,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:03:49,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763807880] [2021-11-21 01:03:49,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:03:49,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:03:49,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:03:49,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:03:49,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:03:49,523 INFO L87 Difference]: Start difference. First operand 8062 states and 11967 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-21 01:03:51,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:03:51,271 INFO L93 Difference]: Finished difference Result 8064 states and 11968 transitions. [2021-11-21 01:03:51,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:03:51,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2021-11-21 01:03:51,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:03:51,357 INFO L225 Difference]: With dead ends: 8064 [2021-11-21 01:03:51,357 INFO L226 Difference]: Without dead ends: 8061 [2021-11-21 01:03:51,362 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:03:51,366 INFO L933 BasicCegarLoop]: 3039 mSDtfsCounter, 3324 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3324 SdHoareTripleChecker+Valid, 3039 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:03:51,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3324 Valid, 3039 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-21 01:03:51,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8061 states. [2021-11-21 01:03:51,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8061 to 8061. [2021-11-21 01:03:51,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8061 states, 4790 states have (on average 1.3342379958246346) internal successors, (6391), 5199 states have internal predecessors, (6391), 2672 states have call successors, (2672), 623 states have call predecessors, (2672), 598 states have return successors, (2902), 2474 states have call predecessors, (2902), 2664 states have call successors, (2902) [2021-11-21 01:03:51,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8061 states to 8061 states and 11965 transitions. [2021-11-21 01:03:51,998 INFO L78 Accepts]: Start accepts. Automaton has 8061 states and 11965 transitions. Word has length 21 [2021-11-21 01:03:51,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:03:51,999 INFO L470 AbstractCegarLoop]: Abstraction has 8061 states and 11965 transitions. [2021-11-21 01:03:51,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-21 01:03:51,999 INFO L276 IsEmpty]: Start isEmpty. Operand 8061 states and 11965 transitions. [2021-11-21 01:03:52,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-21 01:03:52,002 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:03:52,002 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:03:52,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 01:03:52,002 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:03:52,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:03:52,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1552762477, now seen corresponding path program 1 times [2021-11-21 01:03:52,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:03:52,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121929744] [2021-11-21 01:03:52,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:03:52,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:03:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:03:52,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:03:52,385 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:03:52,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121929744] [2021-11-21 01:03:52,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121929744] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:03:52,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:03:52,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:03:52,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519797245] [2021-11-21 01:03:52,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:03:52,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:03:52,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:03:52,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:03:52,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:03:52,390 INFO L87 Difference]: Start difference. First operand 8061 states and 11965 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-21 01:03:55,632 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:03:57,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:03:57,232 INFO L93 Difference]: Finished difference Result 12275 states and 18026 transitions. [2021-11-21 01:03:57,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:03:57,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2021-11-21 01:03:57,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:03:57,361 INFO L225 Difference]: With dead ends: 12275 [2021-11-21 01:03:57,361 INFO L226 Difference]: Without dead ends: 12272 [2021-11-21 01:03:57,371 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:03:57,375 INFO L933 BasicCegarLoop]: 3780 mSDtfsCounter, 3313 mSDsluCounter, 3331 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3313 SdHoareTripleChecker+Valid, 6813 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:03:57,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3313 Valid, 6813 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 599 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2021-11-21 01:03:57,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12272 states. [2021-11-21 01:03:58,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12272 to 12267. [2021-11-21 01:03:58,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12267 states, 7291 states have (on average 1.3316417501028666) internal successors, (9709), 7896 states have internal predecessors, (9709), 4040 states have call successors, (4040), 960 states have call predecessors, (4040), 935 states have return successors, (4270), 3769 states have call predecessors, (4270), 4032 states have call successors, (4270) [2021-11-21 01:03:58,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12267 states to 12267 states and 18019 transitions. [2021-11-21 01:03:58,361 INFO L78 Accepts]: Start accepts. Automaton has 12267 states and 18019 transitions. Word has length 22 [2021-11-21 01:03:58,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:03:58,376 INFO L470 AbstractCegarLoop]: Abstraction has 12267 states and 18019 transitions. [2021-11-21 01:03:58,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-21 01:03:58,377 INFO L276 IsEmpty]: Start isEmpty. Operand 12267 states and 18019 transitions. [2021-11-21 01:03:58,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-21 01:03:58,378 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:03:58,379 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:03:58,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:03:58,379 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:03:58,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:03:58,382 INFO L85 PathProgramCache]: Analyzing trace with hash 889602944, now seen corresponding path program 1 times [2021-11-21 01:03:58,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:03:58,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47268208] [2021-11-21 01:03:58,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:03:58,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:03:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:03:58,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:03:58,639 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:03:58,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47268208] [2021-11-21 01:03:58,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47268208] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:03:58,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:03:58,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:03:58,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147477831] [2021-11-21 01:03:58,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:03:58,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:03:58,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:03:58,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:03:58,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:03:58,642 INFO L87 Difference]: Start difference. First operand 12267 states and 18019 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-21 01:04:01,886 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:04:03,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:04:03,551 INFO L93 Difference]: Finished difference Result 12276 states and 18027 transitions. [2021-11-21 01:04:03,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:04:03,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2021-11-21 01:04:03,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:04:03,624 INFO L225 Difference]: With dead ends: 12276 [2021-11-21 01:04:03,624 INFO L226 Difference]: Without dead ends: 12273 [2021-11-21 01:04:03,630 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:04:03,633 INFO L933 BasicCegarLoop]: 3780 mSDtfsCounter, 3310 mSDsluCounter, 3334 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3310 SdHoareTripleChecker+Valid, 6816 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:04:03,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3310 Valid, 6816 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 599 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2021-11-21 01:04:03,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12273 states. [2021-11-21 01:04:04,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12273 to 12268. [2021-11-21 01:04:04,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12268 states, 7292 states have (on average 1.3315962698848052) internal successors, (9710), 7897 states have internal predecessors, (9710), 4040 states have call successors, (4040), 960 states have call predecessors, (4040), 935 states have return successors, (4270), 3769 states have call predecessors, (4270), 4032 states have call successors, (4270) [2021-11-21 01:04:04,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12268 states to 12268 states and 18020 transitions. [2021-11-21 01:04:04,473 INFO L78 Accepts]: Start accepts. Automaton has 12268 states and 18020 transitions. Word has length 23 [2021-11-21 01:04:04,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:04:04,474 INFO L470 AbstractCegarLoop]: Abstraction has 12268 states and 18020 transitions. [2021-11-21 01:04:04,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-21 01:04:04,475 INFO L276 IsEmpty]: Start isEmpty. Operand 12268 states and 18020 transitions. [2021-11-21 01:04:04,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-21 01:04:04,477 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:04:04,478 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:04:04,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 01:04:04,478 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:04:04,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:04:04,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1806498768, now seen corresponding path program 1 times [2021-11-21 01:04:04,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:04:04,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149843996] [2021-11-21 01:04:04,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:04:04,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:04:04,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:04:04,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:04:04,742 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:04:04,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149843996] [2021-11-21 01:04:04,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149843996] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:04:04,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:04:04,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:04:04,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402356120] [2021-11-21 01:04:04,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:04:04,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:04:04,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:04:04,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:04:04,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:04:04,746 INFO L87 Difference]: Start difference. First operand 12268 states and 18020 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-21 01:04:09,668 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:04:09,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:04:09,839 INFO L93 Difference]: Finished difference Result 24304 states and 36349 transitions. [2021-11-21 01:04:09,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:04:09,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2021-11-21 01:04:09,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:04:10,080 INFO L225 Difference]: With dead ends: 24304 [2021-11-21 01:04:10,080 INFO L226 Difference]: Without dead ends: 24293 [2021-11-21 01:04:10,094 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:04:10,095 INFO L933 BasicCegarLoop]: 3880 mSDtfsCounter, 3327 mSDsluCounter, 3349 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3327 SdHoareTripleChecker+Valid, 6932 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:04:10,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3327 Valid, 6932 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 608 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2021-11-21 01:04:10,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24293 states. [2021-11-21 01:04:11,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24293 to 24286. [2021-11-21 01:04:11,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24286 states, 14447 states have (on average 1.3316951616252508) internal successors, (19239), 15645 states have internal predecessors, (19239), 7976 states have call successors, (7976), 1911 states have call predecessors, (7976), 1862 states have return successors, (9106), 7447 states have call predecessors, (9106), 7968 states have call successors, (9106) [2021-11-21 01:04:11,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24286 states to 24286 states and 36321 transitions. [2021-11-21 01:04:11,958 INFO L78 Accepts]: Start accepts. Automaton has 24286 states and 36321 transitions. Word has length 24 [2021-11-21 01:04:11,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:04:11,958 INFO L470 AbstractCegarLoop]: Abstraction has 24286 states and 36321 transitions. [2021-11-21 01:04:11,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-21 01:04:11,959 INFO L276 IsEmpty]: Start isEmpty. Operand 24286 states and 36321 transitions. [2021-11-21 01:04:11,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-21 01:04:11,972 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:04:11,972 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:04:11,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 01:04:11,972 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:04:11,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:04:11,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1322373021, now seen corresponding path program 1 times [2021-11-21 01:04:11,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:04:11,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507413189] [2021-11-21 01:04:11,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:04:11,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:04:12,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:04:12,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:04:12,394 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:04:12,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507413189] [2021-11-21 01:04:12,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507413189] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:04:12,395 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:04:12,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:04:12,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828217042] [2021-11-21 01:04:12,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:04:12,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:04:12,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:04:12,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:04:12,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:04:12,397 INFO L87 Difference]: Start difference. First operand 24286 states and 36321 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-11-21 01:04:15,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:04:15,971 INFO L93 Difference]: Finished difference Result 72406 states and 108218 transitions. [2021-11-21 01:04:15,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:04:15,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 56 [2021-11-21 01:04:15,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:04:16,480 INFO L225 Difference]: With dead ends: 72406 [2021-11-21 01:04:16,480 INFO L226 Difference]: Without dead ends: 48121 [2021-11-21 01:04:16,669 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:04:16,671 INFO L933 BasicCegarLoop]: 4768 mSDtfsCounter, 3271 mSDsluCounter, 3333 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3271 SdHoareTripleChecker+Valid, 7804 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:04:16,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3271 Valid, 7804 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-21 01:04:16,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48121 states. [2021-11-21 01:04:19,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48121 to 48068. [2021-11-21 01:04:19,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48068 states, 28519 states have (on average 1.3293944387951893) internal successors, (37913), 30883 states have internal predecessors, (37913), 15836 states have call successors, (15836), 3809 states have call predecessors, (15836), 3712 states have return successors, (18080), 14769 states have call predecessors, (18080), 15828 states have call successors, (18080) [2021-11-21 01:04:20,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48068 states to 48068 states and 71829 transitions. [2021-11-21 01:04:20,513 INFO L78 Accepts]: Start accepts. Automaton has 48068 states and 71829 transitions. Word has length 56 [2021-11-21 01:04:20,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:04:20,515 INFO L470 AbstractCegarLoop]: Abstraction has 48068 states and 71829 transitions. [2021-11-21 01:04:20,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-11-21 01:04:20,516 INFO L276 IsEmpty]: Start isEmpty. Operand 48068 states and 71829 transitions. [2021-11-21 01:04:20,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-21 01:04:20,528 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:04:20,528 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:04:20,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 01:04:20,529 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:04:20,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:04:20,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1370954878, now seen corresponding path program 1 times [2021-11-21 01:04:20,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:04:20,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666253602] [2021-11-21 01:04:20,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:04:20,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:04:20,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:04:20,925 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 01:04:20,925 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:04:20,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666253602] [2021-11-21 01:04:20,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666253602] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:04:20,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:04:20,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:04:20,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762189521] [2021-11-21 01:04:20,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:04:20,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:04:20,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:04:20,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:04:20,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:04:20,929 INFO L87 Difference]: Start difference. First operand 48068 states and 71829 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-21 01:04:23,491 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:04:26,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:04:26,073 INFO L93 Difference]: Finished difference Result 48398 states and 72134 transitions. [2021-11-21 01:04:26,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:04:26,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2021-11-21 01:04:26,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:04:26,544 INFO L225 Difference]: With dead ends: 48398 [2021-11-21 01:04:26,544 INFO L226 Difference]: Without dead ends: 48395 [2021-11-21 01:04:26,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:04:26,571 INFO L933 BasicCegarLoop]: 3045 mSDtfsCounter, 84 mSDsluCounter, 3273 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 6022 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:04:26,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 6022 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 610 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2021-11-21 01:04:26,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48395 states. [2021-11-21 01:04:28,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48395 to 48395. [2021-11-21 01:04:28,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48395 states, 28703 states have (on average 1.3275615789290318) internal successors, (38105), 31066 states have internal predecessors, (38105), 15883 states have call successors, (15883), 3905 states have call predecessors, (15883), 3808 states have return successors, (18128), 14817 states have call predecessors, (18128), 15876 states have call successors, (18128) [2021-11-21 01:04:29,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48395 states to 48395 states and 72116 transitions. [2021-11-21 01:04:29,194 INFO L78 Accepts]: Start accepts. Automaton has 48395 states and 72116 transitions. Word has length 55 [2021-11-21 01:04:29,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:04:29,195 INFO L470 AbstractCegarLoop]: Abstraction has 48395 states and 72116 transitions. [2021-11-21 01:04:29,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-21 01:04:29,196 INFO L276 IsEmpty]: Start isEmpty. Operand 48395 states and 72116 transitions. [2021-11-21 01:04:29,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-21 01:04:29,241 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:04:29,241 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 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] [2021-11-21 01:04:29,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 01:04:29,242 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:04:29,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:04:29,243 INFO L85 PathProgramCache]: Analyzing trace with hash 684397058, now seen corresponding path program 1 times [2021-11-21 01:04:29,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:04:29,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980606250] [2021-11-21 01:04:29,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:04:29,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:04:29,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:04:29,600 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-21 01:04:29,600 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:04:29,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980606250] [2021-11-21 01:04:29,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980606250] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:04:29,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:04:29,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:04:29,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824799666] [2021-11-21 01:04:29,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:04:29,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:04:29,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:04:29,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:04:29,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:04:29,606 INFO L87 Difference]: Start difference. First operand 48395 states and 72116 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 01:04:32,913 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:04:36,067 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:04:38,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:04:38,186 INFO L93 Difference]: Finished difference Result 100810 states and 151354 transitions. [2021-11-21 01:04:38,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:04:38,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 103 [2021-11-21 01:04:38,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:04:38,613 INFO L225 Difference]: With dead ends: 100810 [2021-11-21 01:04:38,613 INFO L226 Difference]: Without dead ends: 52416 [2021-11-21 01:04:38,966 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:04:38,970 INFO L933 BasicCegarLoop]: 3187 mSDtfsCounter, 388 mSDsluCounter, 3331 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 6220 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:04:38,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [474 Valid, 6220 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 615 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2021-11-21 01:04:39,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52416 states. [2021-11-21 01:04:41,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52416 to 48401. [2021-11-21 01:04:41,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48401 states, 28709 states have (on average 1.3274931206241944) internal successors, (38111), 31072 states have internal predecessors, (38111), 15883 states have call successors, (15883), 3905 states have call predecessors, (15883), 3808 states have return successors, (18128), 14817 states have call predecessors, (18128), 15876 states have call successors, (18128) [2021-11-21 01:04:42,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48401 states to 48401 states and 72122 transitions. [2021-11-21 01:04:42,179 INFO L78 Accepts]: Start accepts. Automaton has 48401 states and 72122 transitions. Word has length 103 [2021-11-21 01:04:42,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:04:42,179 INFO L470 AbstractCegarLoop]: Abstraction has 48401 states and 72122 transitions. [2021-11-21 01:04:42,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 01:04:42,180 INFO L276 IsEmpty]: Start isEmpty. Operand 48401 states and 72122 transitions. [2021-11-21 01:04:42,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-21 01:04:42,233 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:04:42,233 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 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] [2021-11-21 01:04:42,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-21 01:04:42,234 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:04:42,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:04:42,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1960299347, now seen corresponding path program 1 times [2021-11-21 01:04:42,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:04:42,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632894001] [2021-11-21 01:04:42,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:04:42,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:04:42,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:04:42,638 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-21 01:04:42,638 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:04:42,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632894001] [2021-11-21 01:04:42,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632894001] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:04:42,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:04:42,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:04:42,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389429144] [2021-11-21 01:04:42,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:04:42,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:04:42,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:04:42,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:04:42,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:04:42,642 INFO L87 Difference]: Start difference. First operand 48401 states and 72122 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 01:04:46,113 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:04:49,987 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:04:52,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:04:52,376 INFO L93 Difference]: Finished difference Result 109458 states and 166758 transitions. [2021-11-21 01:04:52,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:04:52,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 106 [2021-11-21 01:04:52,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:04:52,737 INFO L225 Difference]: With dead ends: 109458 [2021-11-21 01:04:52,738 INFO L226 Difference]: Without dead ends: 61058 [2021-11-21 01:04:52,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:04:52,982 INFO L933 BasicCegarLoop]: 3836 mSDtfsCounter, 1204 mSDsluCounter, 7488 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 178 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1387 SdHoareTripleChecker+Valid, 10708 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:04:52,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1387 Valid, 10708 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 962 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2021-11-21 01:04:53,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61058 states. [2021-11-21 01:04:56,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61058 to 48449. [2021-11-21 01:04:56,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48449 states, 28757 states have (on average 1.326946482595542) internal successors, (38159), 31120 states have internal predecessors, (38159), 15883 states have call successors, (15883), 3905 states have call predecessors, (15883), 3808 states have return successors, (18128), 14817 states have call predecessors, (18128), 15876 states have call successors, (18128) [2021-11-21 01:04:56,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48449 states to 48449 states and 72170 transitions. [2021-11-21 01:04:56,329 INFO L78 Accepts]: Start accepts. Automaton has 48449 states and 72170 transitions. Word has length 106 [2021-11-21 01:04:56,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:04:56,330 INFO L470 AbstractCegarLoop]: Abstraction has 48449 states and 72170 transitions. [2021-11-21 01:04:56,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 01:04:56,330 INFO L276 IsEmpty]: Start isEmpty. Operand 48449 states and 72170 transitions. [2021-11-21 01:04:56,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-21 01:04:56,386 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:04:56,386 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 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] [2021-11-21 01:04:56,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-21 01:04:56,387 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:04:56,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:04:56,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1673811937, now seen corresponding path program 1 times [2021-11-21 01:04:56,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:04:56,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051286978] [2021-11-21 01:04:56,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:04:56,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:04:56,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:04:56,674 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-21 01:04:56,675 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:04:56,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051286978] [2021-11-21 01:04:56,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051286978] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:04:56,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:04:56,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:04:56,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223117670] [2021-11-21 01:04:56,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:04:56,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:04:56,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:04:56,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:04:56,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:04:56,679 INFO L87 Difference]: Start difference. First operand 48449 states and 72170 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-21 01:05:00,951 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:05:02,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:05:02,678 INFO L93 Difference]: Finished difference Result 97017 states and 144871 transitions. [2021-11-21 01:05:02,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:05:02,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 117 [2021-11-21 01:05:02,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:05:02,939 INFO L225 Difference]: With dead ends: 97017 [2021-11-21 01:05:02,939 INFO L226 Difference]: Without dead ends: 48569 [2021-11-21 01:05:03,133 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:05:03,133 INFO L933 BasicCegarLoop]: 3039 mSDtfsCounter, 2 mSDsluCounter, 3334 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6075 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:05:03,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 6075 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 601 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2021-11-21 01:05:03,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48569 states. [2021-11-21 01:05:05,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48569 to 48473. [2021-11-21 01:05:05,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48473 states, 28781 states have (on average 1.3266738473298356) internal successors, (38183), 31144 states have internal predecessors, (38183), 15883 states have call successors, (15883), 3905 states have call predecessors, (15883), 3808 states have return successors, (18128), 14817 states have call predecessors, (18128), 15876 states have call successors, (18128) [2021-11-21 01:05:05,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48473 states to 48473 states and 72194 transitions. [2021-11-21 01:05:05,797 INFO L78 Accepts]: Start accepts. Automaton has 48473 states and 72194 transitions. Word has length 117 [2021-11-21 01:05:05,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:05:05,798 INFO L470 AbstractCegarLoop]: Abstraction has 48473 states and 72194 transitions. [2021-11-21 01:05:05,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-21 01:05:05,798 INFO L276 IsEmpty]: Start isEmpty. Operand 48473 states and 72194 transitions. [2021-11-21 01:05:05,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-21 01:05:05,846 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:05:05,846 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 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] [2021-11-21 01:05:05,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-21 01:05:05,847 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:05:05,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:05:05,848 INFO L85 PathProgramCache]: Analyzing trace with hash 182091318, now seen corresponding path program 1 times [2021-11-21 01:05:05,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:05:05,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834960486] [2021-11-21 01:05:05,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:05:05,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:05:05,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:05:06,094 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-21 01:05:06,094 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:05:06,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834960486] [2021-11-21 01:05:06,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834960486] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:05:06,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:05:06,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:05:06,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383290023] [2021-11-21 01:05:06,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:05:06,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:05:06,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:05:06,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:05:06,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:05:06,097 INFO L87 Difference]: Start difference. First operand 48473 states and 72194 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-21 01:05:10,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:05:10,004 INFO L93 Difference]: Finished difference Result 97041 states and 144895 transitions. [2021-11-21 01:05:10,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:05:10,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 118 [2021-11-21 01:05:10,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:05:10,318 INFO L225 Difference]: With dead ends: 97041 [2021-11-21 01:05:10,318 INFO L226 Difference]: Without dead ends: 48569 [2021-11-21 01:05:10,517 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:05:10,517 INFO L933 BasicCegarLoop]: 3037 mSDtfsCounter, 3 mSDsluCounter, 3334 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6073 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:05:10,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 6073 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-21 01:05:10,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48569 states. [2021-11-21 01:05:12,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48569 to 48497. [2021-11-21 01:05:12,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48497 states, 28805 states have (on average 1.326401666377365) internal successors, (38207), 31168 states have internal predecessors, (38207), 15883 states have call successors, (15883), 3905 states have call predecessors, (15883), 3808 states have return successors, (18128), 14817 states have call predecessors, (18128), 15876 states have call successors, (18128) [2021-11-21 01:05:13,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48497 states to 48497 states and 72218 transitions. [2021-11-21 01:05:13,339 INFO L78 Accepts]: Start accepts. Automaton has 48497 states and 72218 transitions. Word has length 118 [2021-11-21 01:05:13,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:05:13,339 INFO L470 AbstractCegarLoop]: Abstraction has 48497 states and 72218 transitions. [2021-11-21 01:05:13,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-21 01:05:13,340 INFO L276 IsEmpty]: Start isEmpty. Operand 48497 states and 72218 transitions. [2021-11-21 01:05:13,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-21 01:05:13,369 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:05:13,370 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 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] [2021-11-21 01:05:13,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-21 01:05:13,370 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:05:13,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:05:13,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1116973059, now seen corresponding path program 1 times [2021-11-21 01:05:13,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:05:13,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088587218] [2021-11-21 01:05:13,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:05:13,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:05:13,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:05:13,748 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-21 01:05:13,749 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:05:13,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088587218] [2021-11-21 01:05:13,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088587218] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:05:13,749 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:05:13,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-21 01:05:13,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023234548] [2021-11-21 01:05:13,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:05:13,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-21 01:05:13,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:05:13,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-21 01:05:13,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-21 01:05:13,751 INFO L87 Difference]: Start difference. First operand 48497 states and 72218 transitions. Second operand has 9 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-21 01:05:20,837 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:05:22,920 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:05:25,036 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:05:27,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:05:27,572 INFO L93 Difference]: Finished difference Result 105623 states and 159761 transitions. [2021-11-21 01:05:27,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-21 01:05:27,573 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) Word has length 119 [2021-11-21 01:05:27,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:05:27,838 INFO L225 Difference]: With dead ends: 105623 [2021-11-21 01:05:27,838 INFO L226 Difference]: Without dead ends: 57127 [2021-11-21 01:05:28,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-21 01:05:28,014 INFO L933 BasicCegarLoop]: 3699 mSDtfsCounter, 1186 mSDsluCounter, 27399 mSDsCounter, 0 mSdLazyCounter, 2565 mSolverCounterSat, 180 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1278 SdHoareTripleChecker+Valid, 28913 SdHoareTripleChecker+Invalid, 2748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 2565 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:05:28,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1278 Valid, 28913 Invalid, 2748 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [180 Valid, 2565 Invalid, 3 Unknown, 0 Unchecked, 11.2s Time] [2021-11-21 01:05:28,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57127 states.