./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c144-7da8-4633-b180-767ac82d8ed3/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c144-7da8-4633-b180-767ac82d8ed3/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c144-7da8-4633-b180-767ac82d8ed3/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c144-7da8-4633-b180-767ac82d8ed3/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c144-7da8-4633-b180-767ac82d8ed3/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c144-7da8-4633-b180-767ac82d8ed3/bin/utaipan-EQgc7hIp5V --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 ed05c854ea2052ceef0a8616d174bb96c75960b07bf25a2959b9efa433484633 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:31:32,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:31:32,717 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:31:32,764 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:31:32,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:31:32,766 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:31:32,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:31:32,771 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:31:32,773 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:31:32,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:31:32,776 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:31:32,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:31:32,778 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:31:32,780 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:31:32,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:31:32,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:31:32,785 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:31:32,786 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:31:32,788 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:31:32,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:31:32,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:31:32,796 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:31:32,798 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:31:32,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:31:32,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:31:32,804 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:31:32,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:31:32,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:31:32,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:31:32,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:31:32,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:31:32,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:31:32,810 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:31:32,811 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:31:32,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:31:32,813 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:31:32,814 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:31:32,814 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:31:32,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:31:32,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:31:32,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:31:32,818 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c144-7da8-4633-b180-767ac82d8ed3/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 02:31:32,844 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:31:32,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:31:32,845 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:31:32,845 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:31:32,846 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:31:32,846 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:31:32,846 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:31:32,847 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:31:32,847 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:31:32,847 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:31:32,847 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:31:32,847 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:31:32,848 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:31:32,848 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:31:32,848 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:31:32,848 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:31:32,849 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:31:32,849 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:31:32,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:31:32,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:31:32,850 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:31:32,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:31:32,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:31:32,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:31:32,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:31:32,851 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:31:32,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:31:32,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:31:32,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:31:32,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:31:32,852 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:31:32,852 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:31:32,852 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:31:32,853 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:31:32,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:31:32,853 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:31:32,853 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:31:32,853 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:31:32,854 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_c9f6c144-7da8-4633-b180-767ac82d8ed3/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c144-7da8-4633-b180-767ac82d8ed3/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed05c854ea2052ceef0a8616d174bb96c75960b07bf25a2959b9efa433484633 [2021-11-23 02:31:33,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:31:33,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:31:33,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:31:33,115 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:31:33,116 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:31:33,117 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c144-7da8-4633-b180-767ac82d8ed3/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i [2021-11-23 02:31:33,202 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c144-7da8-4633-b180-767ac82d8ed3/bin/utaipan-EQgc7hIp5V/data/893518202/a5d8866ea852488dad0eb81faf4cd8bb/FLAG0972adbba [2021-11-23 02:31:34,374 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:31:34,376 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c144-7da8-4633-b180-767ac82d8ed3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i [2021-11-23 02:31:34,467 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c144-7da8-4633-b180-767ac82d8ed3/bin/utaipan-EQgc7hIp5V/data/893518202/a5d8866ea852488dad0eb81faf4cd8bb/FLAG0972adbba [2021-11-23 02:31:34,620 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c144-7da8-4633-b180-767ac82d8ed3/bin/utaipan-EQgc7hIp5V/data/893518202/a5d8866ea852488dad0eb81faf4cd8bb [2021-11-23 02:31:34,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:31:34,623 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:31:34,626 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:31:34,626 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:31:34,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:31:34,632 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:31:34" (1/1) ... [2021-11-23 02:31:34,633 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a67c4f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:34, skipping insertion in model container [2021-11-23 02:31:34,634 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:31:34" (1/1) ... [2021-11-23 02:31:34,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:31:34,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:31:41,367 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_c9f6c144-7da8-4633-b180-767ac82d8ed3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i[593537,593550] [2021-11-23 02:31:41,703 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:31:41,778 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:31:42,576 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_c9f6c144-7da8-4633-b180-767ac82d8ed3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i[593537,593550] [2021-11-23 02:31:42,602 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:31:43,171 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:31:43,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:43 WrapperNode [2021-11-23 02:31:43,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:31:43,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:31:43,173 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:31:43,174 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:31:43,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:43" (1/1) ... [2021-11-23 02:31:43,419 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:43" (1/1) ... [2021-11-23 02:31:43,882 INFO L137 Inliner]: procedures = 713, calls = 7535, calls flagged for inlining = 297, calls inlined = 287, statements flattened = 15386 [2021-11-23 02:31:43,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:31:43,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:31:43,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:31:43,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:31:43,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:43" (1/1) ... [2021-11-23 02:31:43,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:43" (1/1) ... [2021-11-23 02:31:43,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:43" (1/1) ... [2021-11-23 02:31:43,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:43" (1/1) ... [2021-11-23 02:31:44,410 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:43" (1/1) ... [2021-11-23 02:31:44,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:43" (1/1) ... [2021-11-23 02:31:44,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:43" (1/1) ... [2021-11-23 02:31:44,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:31:44,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:31:44,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:31:44,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:31:44,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:43" (1/1) ... [2021-11-23 02:31:44,739 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:31:44,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c144-7da8-4633-b180-767ac82d8ed3/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:31:44,767 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c144-7da8-4633-b180-767ac82d8ed3/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:31:44,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c144-7da8-4633-b180-767ac82d8ed3/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:31:44,816 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-23 02:31:44,816 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-23 02:31:44,817 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-11-23 02:31:44,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-11-23 02:31:44,817 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-23 02:31:44,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 02:31:44,817 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 02:31:44,818 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-23 02:31:44,818 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-23 02:31:44,818 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_irq [2021-11-23 02:31:44,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_irq [2021-11-23 02:31:44,818 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-23 02:31:44,818 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-23 02:31:44,819 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-23 02:31:44,819 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-23 02:31:44,819 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_completion_interrupt [2021-11-23 02:31:44,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_completion_interrupt [2021-11-23 02:31:44,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 02:31:44,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 02:31:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_both_serdes [2021-11-23 02:31:44,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_both_serdes [2021-11-23 02:31:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg [2021-11-23 02:31:44,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg [2021-11-23 02:31:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_reset [2021-11-23 02:31:44,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_reset [2021-11-23 02:31:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2021-11-23 02:31:44,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2021-11-23 02:31:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-23 02:31:44,821 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-23 02:31:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-11-23 02:31:44,822 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-11-23 02:31:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_port_cfg_work [2021-11-23 02:31:44,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_port_cfg_work [2021-11-23 02:31:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_send [2021-11-23 02:31:44,822 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_send [2021-11-23 02:31:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-23 02:31:44,823 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-23 02:31:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_6 [2021-11-23 02:31:44,823 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_6 [2021-11-23 02:31:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-23 02:31:44,823 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-23 02:31:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2021-11-23 02:31:44,824 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2021-11-23 02:31:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-23 02:31:44,824 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-23 02:31:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-23 02:31:44,824 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-23 02:31:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-23 02:31:44,825 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-23 02:31:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_regs_len [2021-11-23 02:31:44,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_regs_len [2021-11-23 02:31:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_vlan_rx_kill_vid [2021-11-23 02:31:44,826 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_vlan_rx_kill_vid [2021-11-23 02:31:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-23 02:31:44,826 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-23 02:31:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2021-11-23 02:31:44,826 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2021-11-23 02:31:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_shutdown [2021-11-23 02:31:44,827 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_shutdown [2021-11-23 02:31:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_all [2021-11-23 02:31:44,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_all [2021-11-23 02:31:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_mac_hdr_len [2021-11-23 02:31:44,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_mac_hdr_len [2021-11-23 02:31:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mailbox_command [2021-11-23 02:31:44,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mailbox_command [2021-11-23 02:31:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2021-11-23 02:31:44,828 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2021-11-23 02:31:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-23 02:31:44,828 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-23 02:31:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_irq_mask [2021-11-23 02:31:44,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_irq_mask [2021-11-23 02:31:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-23 02:31:44,829 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-23 02:31:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-23 02:31:44,830 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-23 02:31:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure ql_dump_risc_ram_area [2021-11-23 02:31:44,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_dump_risc_ram_area [2021-11-23 02:31:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-23 02:31:44,830 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-23 02:31:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_other_func_reg [2021-11-23 02:31:44,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_other_func_reg [2021-11-23 02:31:44,831 INFO L130 BoogieDeclarations]: Found specification of procedure __qlge_vlan_rx_add_vid [2021-11-23 02:31:44,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __qlge_vlan_rx_add_vid [2021-11-23 02:31:44,831 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-23 02:31:44,831 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-23 02:31:44,831 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-23 02:31:44,832 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-23 02:31:44,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:31:44,832 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-23 02:31:44,832 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-23 02:31:44,832 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_xgmac_regs [2021-11-23 02:31:44,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_xgmac_regs [2021-11-23 02:31:44,834 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_asic_error [2021-11-23 02:31:44,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_asic_error [2021-11-23 02:31:44,835 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_buffer_queues [2021-11-23 02:31:44,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_buffer_queues [2021-11-23 02:31:44,835 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_cam_entries [2021-11-23 02:31:44,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_cam_entries [2021-11-23 02:31:44,835 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_mem_resources [2021-11-23 02:31:44,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_mem_resources [2021-11-23 02:31:44,835 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_xgmac_reg [2021-11-23 02:31:44,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_xgmac_reg [2021-11-23 02:31:44,836 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-23 02:31:44,836 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-23 02:31:44,836 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2021-11-23 02:31:44,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2021-11-23 02:31:44,837 INFO L130 BoogieDeclarations]: Found specification of procedure ql_eeh_close [2021-11-23 02:31:44,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_eeh_close [2021-11-23 02:31:44,837 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2021-11-23 02:31:44,837 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_receive_skb [2021-11-23 02:31:44,838 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-23 02:31:44,838 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-23 02:31:44,841 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr_reg [2021-11-23 02:31:44,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr_reg [2021-11-23 02:31:44,842 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-23 02:31:44,842 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-23 02:31:44,842 INFO L130 BoogieDeclarations]: Found specification of procedure skb_record_rx_queue [2021-11-23 02:31:44,844 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_record_rx_queue [2021-11-23 02:31:44,844 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-11-23 02:31:44,844 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-11-23 02:31:44,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:31:44,850 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_serdes_reg [2021-11-23 02:31:44,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_serdes_reg [2021-11-23 02:31:44,850 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-11-23 02:31:44,850 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-11-23 02:31:44,851 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-23 02:31:44,851 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-23 02:31:44,851 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-23 02:31:44,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-23 02:31:44,851 INFO L130 BoogieDeclarations]: Found specification of procedure ql_build_coredump_seg_header [2021-11-23 02:31:44,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_build_coredump_seg_header [2021-11-23 02:31:44,851 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_idc_work [2021-11-23 02:31:44,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_idc_work [2021-11-23 02:31:44,851 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_close [2021-11-23 02:31:44,852 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_close [2021-11-23 02:31:44,852 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mb_sts [2021-11-23 02:31:44,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mb_sts [2021-11-23 02:31:44,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:31:44,852 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_open [2021-11-23 02:31:44,852 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_open [2021-11-23 02:31:44,852 INFO L130 BoogieDeclarations]: Found specification of procedure pci_zalloc_consistent [2021-11-23 02:31:44,852 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_zalloc_consistent [2021-11-23 02:31:44,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:31:44,853 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-23 02:31:44,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-23 02:31:44,853 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2021-11-23 02:31:44,853 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2021-11-23 02:31:44,853 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2021-11-23 02:31:44,853 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2021-11-23 02:31:44,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_10 [2021-11-23 02:31:44,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_10 [2021-11-23 02:31:44,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 02:31:44,854 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 02:31:44,854 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-23 02:31:44,854 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-23 02:31:44,854 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_probe [2021-11-23 02:31:44,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_probe [2021-11-23 02:31:44,854 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2021-11-23 02:31:44,854 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2021-11-23 02:31:44,855 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_buffers [2021-11-23 02:31:44,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_buffers [2021-11-23 02:31:44,855 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-11-23 02:31:44,855 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-11-23 02:31:44,855 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-23 02:31:44,855 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-23 02:31:44,855 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write32 [2021-11-23 02:31:44,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write32 [2021-11-23 02:31:44,856 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cam_route_initialize [2021-11-23 02:31:44,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cam_route_initialize [2021-11-23 02:31:44,856 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-23 02:31:44,856 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-23 02:31:44,856 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-23 02:31:44,856 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-23 02:31:44,856 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_other_func_reg_rdy [2021-11-23 02:31:44,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_other_func_reg_rdy [2021-11-23 02:31:44,857 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_trylock [2021-11-23 02:31:44,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_trylock [2021-11-23 02:31:44,857 INFO L130 BoogieDeclarations]: Found specification of procedure ql_asic_reset_work [2021-11-23 02:31:44,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_asic_reset_work [2021-11-23 02:31:44,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-23 02:31:44,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-23 02:31:44,857 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_port_cfg [2021-11-23 02:31:44,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_port_cfg [2021-11-23 02:31:44,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:31:44,858 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_mpi_reg [2021-11-23 02:31:44,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_mpi_reg [2021-11-23 02:31:44,858 INFO L130 BoogieDeclarations]: Found specification of procedure __get_order [2021-11-23 02:31:44,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_order [2021-11-23 02:31:44,858 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2021-11-23 02:31:44,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2021-11-23 02:31:44,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:31:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-23 02:31:44,859 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-23 02:31:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_get_stats [2021-11-23 02:31:44,859 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_get_stats [2021-11-23 02:31:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-23 02:31:44,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-23 02:31:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:31:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 02:31:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2021-11-23 02:31:44,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2021-11-23 02:31:44,860 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-23 02:31:44,860 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-23 02:31:44,860 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8012_flash_params [2021-11-23 02:31:44,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8012_flash_params [2021-11-23 02:31:44,860 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:31:44,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:31:44,860 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_slot_reset [2021-11-23 02:31:44,861 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_slot_reset [2021-11-23 02:31:44,861 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work___0 [2021-11-23 02:31:44,861 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work___0 [2021-11-23 02:31:44,861 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-23 02:31:44,861 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-23 02:31:44,861 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_serdes_reg [2021-11-23 02:31:44,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_serdes_reg [2021-11-23 02:31:44,864 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-23 02:31:44,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-23 02:31:44,864 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_completion_interrupt [2021-11-23 02:31:44,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_completion_interrupt [2021-11-23 02:31:44,864 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_fill_page_desc [2021-11-23 02:31:44,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_fill_page_desc [2021-11-23 02:31:44,865 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-23 02:31:44,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-23 02:31:44,865 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clear_routing_entries [2021-11-23 02:31:44,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clear_routing_entries [2021-11-23 02:31:44,865 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-23 02:31:44,865 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-23 02:31:44,865 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_off [2021-11-23 02:31:44,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_off [2021-11-23 02:31:44,866 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-23 02:31:44,866 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-23 02:31:44,866 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-23 02:31:44,866 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-23 02:31:44,866 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_tx_timeout [2021-11-23 02:31:44,866 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_tx_timeout [2021-11-23 02:31:44,866 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8000_port_initialize [2021-11-23 02:31:44,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8000_port_initialize [2021-11-23 02:31:44,867 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-11-23 02:31:44,868 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-11-23 02:31:44,871 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mpi_regs [2021-11-23 02:31:44,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mpi_regs [2021-11-23 02:31:44,872 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-23 02:31:44,872 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-23 02:31:44,872 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-23 02:31:44,872 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-23 02:31:44,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mpi_mutex_of_ql_adapter [2021-11-23 02:31:44,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mpi_mutex_of_ql_adapter [2021-11-23 02:31:44,872 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_core_to_log [2021-11-23 02:31:44,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_core_to_log [2021-11-23 02:31:44,873 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_mac_address [2021-11-23 02:31:44,873 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_mac_address [2021-11-23 02:31:44,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:31:44,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:31:44,874 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8012_port_initialize [2021-11-23 02:31:44,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8012_port_initialize [2021-11-23 02:31:44,874 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-23 02:31:44,874 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-23 02:31:44,874 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_flash_word [2021-11-23 02:31:44,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_flash_word [2021-11-23 02:31:44,874 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_subqueue [2021-11-23 02:31:44,874 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_subqueue [2021-11-23 02:31:44,874 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-23 02:31:44,875 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-23 02:31:44,875 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_adapter_resources [2021-11-23 02:31:44,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_adapter_resources [2021-11-23 02:31:44,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:31:44,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:31:44,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 02:31:44,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 02:31:44,875 INFO L130 BoogieDeclarations]: Found specification of procedure csum_tcpudp_magic [2021-11-23 02:31:44,875 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_tcpudp_magic [2021-11-23 02:31:44,876 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-23 02:31:44,876 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-23 02:31:44,876 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-23 02:31:44,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-23 02:31:44,876 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_resources [2021-11-23 02:31:44,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_resources [2021-11-23 02:31:44,876 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-11-23 02:31:44,876 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-11-23 02:31:44,876 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-23 02:31:44,876 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-23 02:31:44,877 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-23 02:31:44,877 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-23 02:31:44,877 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2021-11-23 02:31:44,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2021-11-23 02:31:44,877 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_idc_ack [2021-11-23 02:31:44,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_idc_ack [2021-11-23 02:31:44,877 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-23 02:31:44,877 INFO L130 BoogieDeclarations]: Found specification of procedure ql_soft_reset_mpi_risc [2021-11-23 02:31:44,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_soft_reset_mpi_risc [2021-11-23 02:31:44,878 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-23 02:31:44,878 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-23 02:31:44,878 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-23 02:31:44,878 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-23 02:31:44,878 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_remove [2021-11-23 02:31:44,878 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_remove [2021-11-23 02:31:44,878 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cq_idx [2021-11-23 02:31:44,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cq_idx [2021-11-23 02:31:44,878 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_on [2021-11-23 02:31:44,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_on [2021-11-23 02:31:44,879 INFO L130 BoogieDeclarations]: Found specification of procedure napi_gro_receive [2021-11-23 02:31:44,879 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_gro_receive [2021-11-23 02:31:44,879 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_multicast_list [2021-11-23 02:31:44,879 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_multicast_list [2021-11-23 02:31:44,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mpi_mutex_of_ql_adapter [2021-11-23 02:31:44,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mpi_mutex_of_ql_adapter [2021-11-23 02:31:44,879 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-23 02:31:44,879 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-23 02:31:44,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-23 02:31:44,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-23 02:31:44,880 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-11-23 02:31:44,880 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-11-23 02:31:44,880 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-23 02:31:44,880 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-23 02:31:44,880 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-23 02:31:44,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-23 02:31:44,880 INFO L130 BoogieDeclarations]: Found specification of procedure ql_tx_ring_clean [2021-11-23 02:31:44,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_tx_ring_clean [2021-11-23 02:31:44,881 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-23 02:31:44,881 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-23 02:31:44,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 02:31:44,881 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 02:31:44,881 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2021-11-23 02:31:44,881 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2021-11-23 02:31:44,881 INFO L130 BoogieDeclarations]: Found specification of procedure skb_fill_page_desc [2021-11-23 02:31:44,881 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_fill_page_desc [2021-11-23 02:31:44,882 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 02:31:44,882 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 02:31:44,882 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_mpi_reg [2021-11-23 02:31:44,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_mpi_reg [2021-11-23 02:31:44,882 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-23 02:31:44,882 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-23 02:31:44,882 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-23 02:31:44,882 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-23 02:31:44,882 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clean_inbound_rx_ring [2021-11-23 02:31:44,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clean_inbound_rx_ring [2021-11-23 02:31:44,883 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_cq [2021-11-23 02:31:44,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_cq [2021-11-23 02:31:44,883 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-23 02:31:44,883 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-23 02:31:44,883 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_subqueue [2021-11-23 02:31:44,883 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_subqueue [2021-11-23 02:31:44,883 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-23 02:31:44,883 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-23 02:31:44,884 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-23 02:31:44,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-23 02:31:44,884 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_features [2021-11-23 02:31:44,884 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_features [2021-11-23 02:31:44,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:31:44,884 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-23 02:31:44,884 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-23 02:31:44,884 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_sbuf [2021-11-23 02:31:44,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_sbuf [2021-11-23 02:31:44,885 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-23 02:31:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-23 02:31:44,885 INFO L130 BoogieDeclarations]: Found specification of procedure ql_realign_skb [2021-11-23 02:31:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_realign_skb [2021-11-23 02:31:44,885 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-23 02:31:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-23 02:31:44,885 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_error_detected [2021-11-23 02:31:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_error_detected [2021-11-23 02:31:44,885 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_routing_entries [2021-11-23 02:31:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_routing_entries [2021-11-23 02:31:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_6 [2021-11-23 02:31:44,886 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_6 [2021-11-23 02:31:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:31:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-11-23 02:31:44,886 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-11-23 02:31:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure ql_process_mac_split_rx_intr [2021-11-23 02:31:44,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_process_mac_split_rx_intr [2021-11-23 02:31:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_suspend [2021-11-23 02:31:44,887 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_suspend [2021-11-23 02:31:44,887 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2021-11-23 02:31:44,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2021-11-23 02:31:44,887 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-23 02:31:44,887 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-23 02:31:44,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:31:44,887 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_6 [2021-11-23 02:31:44,887 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_6 [2021-11-23 02:31:44,887 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_hwaccel_put_tag [2021-11-23 02:31:44,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_hwaccel_put_tag [2021-11-23 02:31:44,888 INFO L130 BoogieDeclarations]: Found specification of procedure ql_validate_flash [2021-11-23 02:31:44,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_validate_flash [2021-11-23 02:31:44,888 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-23 02:31:44,888 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-23 02:31:44,888 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cancel_all_work_sync [2021-11-23 02:31:44,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cancel_all_work_sync [2021-11-23 02:31:44,888 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-23 02:31:44,888 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-23 02:31:44,888 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-23 02:31:44,889 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-23 02:31:44,889 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8000_flash_params [2021-11-23 02:31:44,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8000_flash_params [2021-11-23 02:31:44,889 INFO L130 BoogieDeclarations]: Found specification of procedure ql_check_lb_frame [2021-11-23 02:31:44,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_check_lb_frame [2021-11-23 02:31:44,889 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2021-11-23 02:31:44,889 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2021-11-23 02:31:44,889 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2021-11-23 02:31:44,889 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2021-11-23 02:31:44,890 INFO L130 BoogieDeclarations]: Found specification of procedure ql_categorize_rx_err [2021-11-23 02:31:44,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_categorize_rx_err [2021-11-23 02:31:44,890 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-23 02:31:44,890 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-23 02:31:44,890 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-23 02:31:44,890 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-23 02:31:44,890 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-23 02:31:44,890 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-23 02:31:44,890 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_initialize [2021-11-23 02:31:44,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_initialize [2021-11-23 02:31:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-23 02:31:44,891 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-23 02:31:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_sh_reg [2021-11-23 02:31:44,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_sh_reg [2021-11-23 02:31:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-23 02:31:44,891 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-23 02:31:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-23 02:31:44,891 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-23 02:31:44,892 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-23 02:31:44,892 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-23 02:31:44,892 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_db_reg [2021-11-23 02:31:44,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_db_reg [2021-11-23 02:31:44,892 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 02:31:44,892 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 02:31:44,892 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_get_port_cfg [2021-11-23 02:31:44,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_get_port_cfg [2021-11-23 02:31:44,892 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_vlan_rx_add_vid [2021-11-23 02:31:44,893 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_vlan_rx_add_vid [2021-11-23 02:31:44,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:31:44,893 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-11-23 02:31:44,893 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-11-23 02:31:44,893 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-11-23 02:31:44,893 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-11-23 02:31:44,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 02:31:44,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 02:31:44,893 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_change_mtu [2021-11-23 02:31:44,894 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_change_mtu [2021-11-23 02:31:44,894 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_fix_features [2021-11-23 02:31:44,894 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_fix_features [2021-11-23 02:31:44,894 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2021-11-23 02:31:44,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2021-11-23 02:31:44,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-23 02:31:44,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-23 02:31:44,894 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-23 02:31:44,894 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-23 02:31:44,895 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_fw_error [2021-11-23 02:31:44,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_fw_error [2021-11-23 02:31:44,895 INFO L130 BoogieDeclarations]: Found specification of procedure ql_unmap_send [2021-11-23 02:31:44,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_unmap_send [2021-11-23 02:31:44,895 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-23 02:31:44,895 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-23 02:31:44,895 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_handler [2021-11-23 02:31:44,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_handler [2021-11-23 02:31:44,895 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg64 [2021-11-23 02:31:44,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg64 [2021-11-23 02:31:44,896 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-23 02:31:44,896 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-23 02:31:44,896 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_mgmnt_traffic_ctl [2021-11-23 02:31:44,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_mgmnt_traffic_ctl [2021-11-23 02:31:44,896 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_reg [2021-11-23 02:31:44,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_reg [2021-11-23 02:31:44,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-11-23 02:31:44,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-11-23 02:31:44,897 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_reg_rdy [2021-11-23 02:31:44,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_reg_rdy [2021-11-23 02:31:44,897 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_routing_reg [2021-11-23 02:31:44,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_routing_reg [2021-11-23 02:31:44,897 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-23 02:31:44,897 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-23 02:31:44,897 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-23 02:31:44,897 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-23 02:31:44,897 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_work [2021-11-23 02:31:44,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_work [2021-11-23 02:31:44,898 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_led_cfg [2021-11-23 02:31:44,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_led_cfg [2021-11-23 02:31:44,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_9 [2021-11-23 02:31:44,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_9 [2021-11-23 02:31:44,898 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_6 [2021-11-23 02:31:44,898 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_6 [2021-11-23 02:31:44,898 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cfg [2021-11-23 02:31:44,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cfg [2021-11-23 02:31:44,898 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mac_addr_reg [2021-11-23 02:31:44,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mac_addr_reg [2021-11-23 02:31:44,899 INFO L130 BoogieDeclarations]: Found specification of procedure ql_lbq_block_size [2021-11-23 02:31:44,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_lbq_block_size [2021-11-23 02:31:44,899 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-23 02:31:44,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-23 02:31:44,899 INFO L130 BoogieDeclarations]: Found specification of procedure ql_own_firmware [2021-11-23 02:31:44,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_own_firmware [2021-11-23 02:31:44,899 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-23 02:31:44,899 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-23 02:31:44,900 INFO L130 BoogieDeclarations]: Found specification of procedure netif_get_num_default_rss_queues [2021-11-23 02:31:44,900 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_get_num_default_rss_queues [2021-11-23 02:31:44,900 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_lchunk [2021-11-23 02:31:44,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_lchunk [2021-11-23 02:31:44,900 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_ets_regs [2021-11-23 02:31:44,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_ets_regs [2021-11-23 02:31:44,900 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_cfg [2021-11-23 02:31:44,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_cfg [2021-11-23 02:31:44,900 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-23 02:31:44,901 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-23 02:31:44,901 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-23 02:31:44,901 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-23 02:31:44,901 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-23 02:31:44,901 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-23 02:31:44,901 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_reset_work [2021-11-23 02:31:44,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_reset_work [2021-11-23 02:31:44,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:31:44,901 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read32 [2021-11-23 02:31:44,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read32 [2021-11-23 02:31:44,902 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2021-11-23 02:31:44,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2021-11-23 02:31:44,902 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_intr_states [2021-11-23 02:31:44,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_intr_states [2021-11-23 02:31:44,902 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2021-11-23 02:31:44,902 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2021-11-23 02:31:44,902 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_resume [2021-11-23 02:31:44,902 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_resume [2021-11-23 02:31:44,903 INFO L130 BoogieDeclarations]: Found specification of procedure ql_core_dump [2021-11-23 02:31:44,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_core_dump [2021-11-23 02:31:46,299 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:31:46,305 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:31:46,393 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 02:32:06,724 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:32:13,195 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:32:13,195 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 02:32:13,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:32:13 BoogieIcfgContainer [2021-11-23 02:32:13,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:32:13,205 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:32:13,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:32:13,218 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:32:13,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:31:34" (1/3) ... [2021-11-23 02:32:13,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57898d76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:32:13, skipping insertion in model container [2021-11-23 02:32:13,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:43" (2/3) ... [2021-11-23 02:32:13,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57898d76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:32:13, skipping insertion in model container [2021-11-23 02:32:13,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:32:13" (3/3) ... [2021-11-23 02:32:13,225 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--ethernet--qlogic--qlge--qlge.ko-entry_point.cil.out.i [2021-11-23 02:32:13,234 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:32:13,234 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:32:13,300 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:32:13,306 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 [2021-11-23 02:32:13,307 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:32:13,419 INFO L276 IsEmpty]: Start isEmpty. Operand has 4010 states, 2466 states have (on average 1.3454987834549879) internal successors, (3318), 2557 states have internal predecessors, (3318), 1293 states have call successors, (1293), 250 states have call predecessors, (1293), 249 states have return successors, (1277), 1263 states have call predecessors, (1277), 1277 states have call successors, (1277) [2021-11-23 02:32:13,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-23 02:32:13,448 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:32:13,449 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:32:13,449 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:32:13,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:32:13,455 INFO L85 PathProgramCache]: Analyzing trace with hash -419404618, now seen corresponding path program 1 times [2021-11-23 02:32:13,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:32:13,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825456676] [2021-11-23 02:32:13,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:32:13,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:32:14,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:32:14,727 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2021-11-23 02:32:14,728 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:32:14,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825456676] [2021-11-23 02:32:14,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825456676] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:32:14,729 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:32:14,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:32:14,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456612156] [2021-11-23 02:32:14,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:32:14,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:32:14,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:32:14,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:32:14,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:32:14,794 INFO L87 Difference]: Start difference. First operand has 4010 states, 2466 states have (on average 1.3454987834549879) internal successors, (3318), 2557 states have internal predecessors, (3318), 1293 states have call successors, (1293), 250 states have call predecessors, (1293), 249 states have return successors, (1277), 1263 states have call predecessors, (1277), 1277 states have call successors, (1277) Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-23 02:32:17,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:32:19,768 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:32:22,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:32:26,944 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:32:28,274 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:32:31,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:32:36,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:32:36,423 INFO L93 Difference]: Finished difference Result 11349 states and 16984 transitions. [2021-11-23 02:32:36,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:32:36,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 139 [2021-11-23 02:32:36,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:32:36,515 INFO L225 Difference]: With dead ends: 11349 [2021-11-23 02:32:36,515 INFO L226 Difference]: Without dead ends: 7313 [2021-11-23 02:32:36,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:32:36,554 INFO L933 BasicCegarLoop]: 6580 mSDtfsCounter, 5658 mSDsluCounter, 5193 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 4 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5658 SdHoareTripleChecker+Valid, 11211 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:32:36,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5658 Valid, 11211 Invalid, 1284 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1275 Invalid, 5 Unknown, 0 Unchecked, 20.9s Time] [2021-11-23 02:32:36,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7313 states. [2021-11-23 02:32:37,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7313 to 7307. [2021-11-23 02:32:37,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7307 states, 4514 states have (on average 1.3407177669472752) internal successors, (6052), 4648 states have internal predecessors, (6052), 2332 states have call successors, (2332), 471 states have call predecessors, (2332), 460 states have return successors, (2422), 2274 states have call predecessors, (2422), 2326 states have call successors, (2422) [2021-11-23 02:32:37,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7307 states to 7307 states and 10806 transitions. [2021-11-23 02:32:37,096 INFO L78 Accepts]: Start accepts. Automaton has 7307 states and 10806 transitions. Word has length 139 [2021-11-23 02:32:37,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:32:37,098 INFO L470 AbstractCegarLoop]: Abstraction has 7307 states and 10806 transitions. [2021-11-23 02:32:37,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-23 02:32:37,099 INFO L276 IsEmpty]: Start isEmpty. Operand 7307 states and 10806 transitions. [2021-11-23 02:32:37,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-23 02:32:37,104 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:32:37,105 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:32:37,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:32:37,105 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:32:37,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:32:37,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1437561782, now seen corresponding path program 1 times [2021-11-23 02:32:37,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:32:37,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907940809] [2021-11-23 02:32:37,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:32:37,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:32:37,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:32:37,650 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2021-11-23 02:32:37,650 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:32:37,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907940809] [2021-11-23 02:32:37,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907940809] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:32:37,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:32:37,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:32:37,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428609603] [2021-11-23 02:32:37,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:32:37,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:32:37,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:32:37,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:32:37,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:32:37,656 INFO L87 Difference]: Start difference. First operand 7307 states and 10806 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2021-11-23 02:32:39,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:32:42,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:32:44,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:32:47,206 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:32:49,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:32:52,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:32:58,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:32:59,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:32:59,234 INFO L93 Difference]: Finished difference Result 21806 states and 32265 transitions. [2021-11-23 02:32:59,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:32:59,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 137 [2021-11-23 02:32:59,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:32:59,374 INFO L225 Difference]: With dead ends: 21806 [2021-11-23 02:32:59,374 INFO L226 Difference]: Without dead ends: 14524 [2021-11-23 02:32:59,432 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 [2021-11-23 02:32:59,435 INFO L933 BasicCegarLoop]: 6778 mSDtfsCounter, 5712 mSDsluCounter, 5812 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5718 SdHoareTripleChecker+Valid, 11937 SdHoareTripleChecker+Invalid, 1403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:32:59,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5718 Valid, 11937 Invalid, 1403 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1396 Invalid, 4 Unknown, 0 Unchecked, 20.9s Time] [2021-11-23 02:32:59,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14524 states. [2021-11-23 02:33:00,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14524 to 14518. [2021-11-23 02:33:00,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14518 states, 8970 states have (on average 1.3405797101449275) internal successors, (12025), 9235 states have internal predecessors, (12025), 4627 states have call successors, (4627), 941 states have call predecessors, (4627), 920 states have return successors, (4833), 4515 states have call predecessors, (4833), 4621 states have call successors, (4833) [2021-11-23 02:33:00,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14518 states to 14518 states and 21485 transitions. [2021-11-23 02:33:00,297 INFO L78 Accepts]: Start accepts. Automaton has 14518 states and 21485 transitions. Word has length 137 [2021-11-23 02:33:00,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:33:00,299 INFO L470 AbstractCegarLoop]: Abstraction has 14518 states and 21485 transitions. [2021-11-23 02:33:00,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2021-11-23 02:33:00,300 INFO L276 IsEmpty]: Start isEmpty. Operand 14518 states and 21485 transitions. [2021-11-23 02:33:00,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-23 02:33:00,308 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:33:00,308 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:33:00,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:33:00,308 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:33:00,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:33:00,309 INFO L85 PathProgramCache]: Analyzing trace with hash -621994014, now seen corresponding path program 1 times [2021-11-23 02:33:00,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:33:00,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173178712] [2021-11-23 02:33:00,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:33:00,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:33:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:33:01,089 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-23 02:33:01,089 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:33:01,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173178712] [2021-11-23 02:33:01,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173178712] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:33:01,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:33:01,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:33:01,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349352385] [2021-11-23 02:33:01,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:33:01,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:33:01,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:33:01,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:33:01,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:33:01,093 INFO L87 Difference]: Start difference. First operand 14518 states and 21485 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 02:33:03,284 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:04,798 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:07,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:33:10,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:13,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:15,647 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:18,424 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:20,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:33:20,082 INFO L93 Difference]: Finished difference Result 17345 states and 25444 transitions. [2021-11-23 02:33:20,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:33:20,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 151 [2021-11-23 02:33:20,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:33:20,227 INFO L225 Difference]: With dead ends: 17345 [2021-11-23 02:33:20,228 INFO L226 Difference]: Without dead ends: 17342 [2021-11-23 02:33:20,243 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 [2021-11-23 02:33:20,245 INFO L933 BasicCegarLoop]: 6017 mSDtfsCounter, 5760 mSDsluCounter, 2146 mSDsCounter, 0 mSdLazyCounter, 1066 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5764 SdHoareTripleChecker+Valid, 7848 SdHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1066 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:33:20,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5764 Valid, 7848 Invalid, 1069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1066 Invalid, 3 Unknown, 0 Unchecked, 18.5s Time] [2021-11-23 02:33:20,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17342 states. [2021-11-23 02:33:21,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17342 to 17337. [2021-11-23 02:33:21,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17337 states, 10707 states have (on average 1.3338937143924536) internal successors, (14282), 11022 states have internal predecessors, (14282), 5457 states have call successors, (5457), 1197 states have call predecessors, (5457), 1172 states have return successors, (5697), 5329 states have call predecessors, (5697), 5452 states have call successors, (5697) [2021-11-23 02:33:21,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17337 states to 17337 states and 25436 transitions. [2021-11-23 02:33:21,279 INFO L78 Accepts]: Start accepts. Automaton has 17337 states and 25436 transitions. Word has length 151 [2021-11-23 02:33:21,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:33:21,280 INFO L470 AbstractCegarLoop]: Abstraction has 17337 states and 25436 transitions. [2021-11-23 02:33:21,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 02:33:21,280 INFO L276 IsEmpty]: Start isEmpty. Operand 17337 states and 25436 transitions. [2021-11-23 02:33:21,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-23 02:33:21,289 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:33:21,289 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:33:21,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:33:21,290 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:33:21,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:33:21,291 INFO L85 PathProgramCache]: Analyzing trace with hash -2104610025, now seen corresponding path program 1 times [2021-11-23 02:33:21,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:33:21,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333563279] [2021-11-23 02:33:21,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:33:21,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:33:21,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:33:21,967 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-23 02:33:21,967 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:33:21,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333563279] [2021-11-23 02:33:21,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333563279] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:33:21,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:33:21,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:33:21,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119095442] [2021-11-23 02:33:21,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:33:21,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:33:21,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:33:21,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:33:21,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:33:21,971 INFO L87 Difference]: Start difference. First operand 17337 states and 25436 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 02:33:24,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:26,556 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:28,884 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:33:30,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:33,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:34,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:39,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:33:39,420 INFO L93 Difference]: Finished difference Result 17778 states and 26059 transitions. [2021-11-23 02:33:39,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:33:39,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 152 [2021-11-23 02:33:39,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:33:39,540 INFO L225 Difference]: With dead ends: 17778 [2021-11-23 02:33:39,540 INFO L226 Difference]: Without dead ends: 17775 [2021-11-23 02:33:39,566 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 [2021-11-23 02:33:39,570 INFO L933 BasicCegarLoop]: 6078 mSDtfsCounter, 5751 mSDsluCounter, 2176 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5757 SdHoareTripleChecker+Valid, 7932 SdHoareTripleChecker+Invalid, 1083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:33:39,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5757 Valid, 7932 Invalid, 1083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1079 Invalid, 4 Unknown, 0 Unchecked, 17.1s Time] [2021-11-23 02:33:39,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17775 states. [2021-11-23 02:33:40,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17775 to 17770. [2021-11-23 02:33:40,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17770 states, 10974 states have (on average 1.3344268270457444) internal successors, (14644), 11298 states have internal predecessors, (14644), 5581 states have call successors, (5581), 1240 states have call predecessors, (5581), 1214 states have return successors, (5826), 5451 states have call predecessors, (5826), 5577 states have call successors, (5826) [2021-11-23 02:33:40,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17770 states to 17770 states and 26051 transitions. [2021-11-23 02:33:40,635 INFO L78 Accepts]: Start accepts. Automaton has 17770 states and 26051 transitions. Word has length 152 [2021-11-23 02:33:40,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:33:40,640 INFO L470 AbstractCegarLoop]: Abstraction has 17770 states and 26051 transitions. [2021-11-23 02:33:40,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 02:33:40,640 INFO L276 IsEmpty]: Start isEmpty. Operand 17770 states and 26051 transitions. [2021-11-23 02:33:40,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-23 02:33:40,647 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:33:40,647 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:33:40,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:33:40,647 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:33:40,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:33:40,649 INFO L85 PathProgramCache]: Analyzing trace with hash 314250202, now seen corresponding path program 1 times [2021-11-23 02:33:40,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:33:40,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072697082] [2021-11-23 02:33:40,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:33:40,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:33:40,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:33:41,383 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-23 02:33:41,383 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:33:41,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072697082] [2021-11-23 02:33:41,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072697082] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:33:41,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:33:41,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:33:41,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54960565] [2021-11-23 02:33:41,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:33:41,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:33:41,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:33:41,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:33:41,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:33:41,387 INFO L87 Difference]: Start difference. First operand 17770 states and 26051 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 02:33:43,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:46,071 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:48,319 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:33:51,721 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:53,143 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:54,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:33:56,618 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:00,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:34:00,269 INFO L93 Difference]: Finished difference Result 17777 states and 26056 transitions. [2021-11-23 02:34:00,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:34:00,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 154 [2021-11-23 02:34:00,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:34:00,377 INFO L225 Difference]: With dead ends: 17777 [2021-11-23 02:34:00,377 INFO L226 Difference]: Without dead ends: 17769 [2021-11-23 02:34:00,392 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 [2021-11-23 02:34:00,393 INFO L933 BasicCegarLoop]: 6077 mSDtfsCounter, 5747 mSDsluCounter, 2176 mSDsCounter, 0 mSdLazyCounter, 1078 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5753 SdHoareTripleChecker+Valid, 7931 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1078 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:34:00,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5753 Valid, 7931 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1078 Invalid, 4 Unknown, 0 Unchecked, 18.4s Time] [2021-11-23 02:34:00,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17769 states. [2021-11-23 02:34:01,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17769 to 17764. [2021-11-23 02:34:01,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17764 states, 10969 states have (on average 1.3343057708086425) internal successors, (14636), 11292 states have internal predecessors, (14636), 5580 states have call successors, (5580), 1240 states have call predecessors, (5580), 1214 states have return successors, (5826), 5451 states have call predecessors, (5826), 5577 states have call successors, (5826) [2021-11-23 02:34:01,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17764 states to 17764 states and 26042 transitions. [2021-11-23 02:34:01,475 INFO L78 Accepts]: Start accepts. Automaton has 17764 states and 26042 transitions. Word has length 154 [2021-11-23 02:34:01,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:34:01,476 INFO L470 AbstractCegarLoop]: Abstraction has 17764 states and 26042 transitions. [2021-11-23 02:34:01,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-23 02:34:01,477 INFO L276 IsEmpty]: Start isEmpty. Operand 17764 states and 26042 transitions. [2021-11-23 02:34:01,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-23 02:34:01,485 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:34:01,485 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-23 02:34:01,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:34:01,486 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:34:01,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:34:01,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1954029844, now seen corresponding path program 1 times [2021-11-23 02:34:01,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:34:01,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740330858] [2021-11-23 02:34:01,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:34:01,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:34:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:34:02,134 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2021-11-23 02:34:02,134 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:34:02,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740330858] [2021-11-23 02:34:02,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740330858] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:34:02,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:34:02,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:34:02,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933991556] [2021-11-23 02:34:02,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:34:02,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:34:02,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:34:02,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:34:02,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:34:02,137 INFO L87 Difference]: Start difference. First operand 17764 states and 26042 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-23 02:34:04,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:06,878 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:09,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:34:12,393 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:14,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:16,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:22,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:34:22,378 INFO L93 Difference]: Finished difference Result 18457 states and 27002 transitions. [2021-11-23 02:34:22,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:34:22,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 171 [2021-11-23 02:34:22,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:34:22,479 INFO L225 Difference]: With dead ends: 18457 [2021-11-23 02:34:22,479 INFO L226 Difference]: Without dead ends: 18454 [2021-11-23 02:34:22,489 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 [2021-11-23 02:34:22,491 INFO L933 BasicCegarLoop]: 5381 mSDtfsCounter, 579 mSDsluCounter, 5564 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 10323 SdHoareTripleChecker+Invalid, 1319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:34:22,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [579 Valid, 10323 Invalid, 1319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1315 Invalid, 4 Unknown, 0 Unchecked, 19.7s Time] [2021-11-23 02:34:22,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18454 states. [2021-11-23 02:34:23,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18454 to 18454. [2021-11-23 02:34:23,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18454 states, 11384 states have (on average 1.3354708362614196) internal successors, (15203), 11712 states have internal predecessors, (15203), 5773 states have call successors, (5773), 1322 states have call predecessors, (5773), 1296 states have return successors, (6020), 5642 states have call predecessors, (6020), 5771 states have call successors, (6020) [2021-11-23 02:34:23,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18454 states to 18454 states and 26996 transitions. [2021-11-23 02:34:23,426 INFO L78 Accepts]: Start accepts. Automaton has 18454 states and 26996 transitions. Word has length 171 [2021-11-23 02:34:23,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:34:23,427 INFO L470 AbstractCegarLoop]: Abstraction has 18454 states and 26996 transitions. [2021-11-23 02:34:23,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-23 02:34:23,427 INFO L276 IsEmpty]: Start isEmpty. Operand 18454 states and 26996 transitions. [2021-11-23 02:34:23,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-23 02:34:23,436 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:34:23,436 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:34:23,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:34:23,436 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:34:23,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:34:23,437 INFO L85 PathProgramCache]: Analyzing trace with hash 2032487011, now seen corresponding path program 1 times [2021-11-23 02:34:23,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:34:23,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527236610] [2021-11-23 02:34:23,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:34:23,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:34:23,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:34:23,915 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2021-11-23 02:34:23,915 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:34:23,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527236610] [2021-11-23 02:34:23,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527236610] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:34:23,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:34:23,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:34:23,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466109617] [2021-11-23 02:34:23,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:34:23,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:34:23,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:34:23,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:34:23,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:34:23,918 INFO L87 Difference]: Start difference. First operand 18454 states and 26996 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-23 02:34:26,117 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:28,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:32,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:34:37,638 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:39,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:42,594 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:47,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:34:47,825 INFO L93 Difference]: Finished difference Result 53533 states and 78250 transitions. [2021-11-23 02:34:47,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:34:47,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 170 [2021-11-23 02:34:47,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:34:48,024 INFO L225 Difference]: With dead ends: 53533 [2021-11-23 02:34:48,024 INFO L226 Difference]: Without dead ends: 35104 [2021-11-23 02:34:48,132 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 [2021-11-23 02:34:48,133 INFO L933 BasicCegarLoop]: 6583 mSDtfsCounter, 5246 mSDsluCounter, 5766 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5247 SdHoareTripleChecker+Valid, 11703 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:34:48,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5247 Valid, 11703 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1399 Invalid, 6 Unknown, 0 Unchecked, 22.7s Time] [2021-11-23 02:34:48,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35104 states. [2021-11-23 02:34:49,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35104 to 35094. [2021-11-23 02:34:49,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35094 states, 21687 states have (on average 1.3360999677225989) internal successors, (28976), 22303 states have internal predecessors, (28976), 10932 states have call successors, (10932), 2524 states have call predecessors, (10932), 2474 states have return successors, (11370), 10680 states have call predecessors, (11370), 10930 states have call successors, (11370) [2021-11-23 02:34:50,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35094 states to 35094 states and 51278 transitions. [2021-11-23 02:34:50,152 INFO L78 Accepts]: Start accepts. Automaton has 35094 states and 51278 transitions. Word has length 170 [2021-11-23 02:34:50,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:34:50,153 INFO L470 AbstractCegarLoop]: Abstraction has 35094 states and 51278 transitions. [2021-11-23 02:34:50,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-23 02:34:50,153 INFO L276 IsEmpty]: Start isEmpty. Operand 35094 states and 51278 transitions. [2021-11-23 02:34:50,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-11-23 02:34:50,179 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:34:50,180 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-23 02:34:50,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 02:34:50,180 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:34:50,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:34:50,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1067478600, now seen corresponding path program 1 times [2021-11-23 02:34:50,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:34:50,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29700612] [2021-11-23 02:34:50,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:34:50,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:34:50,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:34:50,686 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2021-11-23 02:34:50,686 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:34:50,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29700612] [2021-11-23 02:34:50,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29700612] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:34:50,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:34:50,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:34:50,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290797667] [2021-11-23 02:34:50,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:34:50,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:34:50,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:34:50,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:34:50,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:34:50,689 INFO L87 Difference]: Start difference. First operand 35094 states and 51278 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-23 02:34:53,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:34:56,078 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:34:59,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:00,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:04,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:10,425 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:14,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:35:14,149 INFO L93 Difference]: Finished difference Result 65788 states and 95786 transitions. [2021-11-23 02:35:14,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:35:14,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 200 [2021-11-23 02:35:14,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:35:14,331 INFO L225 Difference]: With dead ends: 65788 [2021-11-23 02:35:14,331 INFO L226 Difference]: Without dead ends: 30719 [2021-11-23 02:35:14,475 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 [2021-11-23 02:35:14,476 INFO L933 BasicCegarLoop]: 9813 mSDtfsCounter, 5757 mSDsluCounter, 5320 mSDsCounter, 0 mSdLazyCounter, 1853 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5761 SdHoareTripleChecker+Valid, 14532 SdHoareTripleChecker+Invalid, 1856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1853 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:35:14,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5761 Valid, 14532 Invalid, 1856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1853 Invalid, 3 Unknown, 0 Unchecked, 22.1s Time] [2021-11-23 02:35:14,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30719 states. [2021-11-23 02:35:16,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30719 to 30704. [2021-11-23 02:35:16,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30704 states, 18969 states have (on average 1.33159365280194) internal successors, (25259), 19507 states have internal predecessors, (25259), 9462 states have call successors, (9462), 2317 states have call predecessors, (9462), 2272 states have return successors, (9805), 9244 states have call predecessors, (9805), 9460 states have call successors, (9805) [2021-11-23 02:35:16,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30704 states to 30704 states and 44526 transitions. [2021-11-23 02:35:16,383 INFO L78 Accepts]: Start accepts. Automaton has 30704 states and 44526 transitions. Word has length 200 [2021-11-23 02:35:16,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:35:16,384 INFO L470 AbstractCegarLoop]: Abstraction has 30704 states and 44526 transitions. [2021-11-23 02:35:16,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-23 02:35:16,384 INFO L276 IsEmpty]: Start isEmpty. Operand 30704 states and 44526 transitions. [2021-11-23 02:35:16,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-11-23 02:35:16,405 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:35:16,405 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:35:16,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 02:35:16,406 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:35:16,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:35:16,406 INFO L85 PathProgramCache]: Analyzing trace with hash -286065062, now seen corresponding path program 1 times [2021-11-23 02:35:16,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:35:16,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378350702] [2021-11-23 02:35:16,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:35:16,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:35:16,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:35:17,045 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:35:17,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378350702] [2021-11-23 02:35:17,047 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2021-11-23 02:35:17,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879076865] [2021-11-23 02:35:17,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:35:17,047 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:35:17,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c144-7da8-4633-b180-767ac82d8ed3/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:35:17,050 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c144-7da8-4633-b180-767ac82d8ed3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:35:17,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c144-7da8-4633-b180-767ac82d8ed3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:35:19,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:35:19,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 9304 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 02:35:19,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:35:20,114 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2021-11-23 02:35:20,114 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:35:20,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879076865] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:35:20,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:35:20,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:35:20,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135213341] [2021-11-23 02:35:20,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:35:20,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:35:20,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:35:20,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:35:20,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:35:20,118 INFO L87 Difference]: Start difference. First operand 30704 states and 44526 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-23 02:35:22,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:24,815 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:35:27,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:29,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:32,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:36,449 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:44,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:35:44,261 INFO L93 Difference]: Finished difference Result 73878 states and 107481 transitions. [2021-11-23 02:35:44,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:35:44,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 219 [2021-11-23 02:35:44,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:35:44,506 INFO L225 Difference]: With dead ends: 73878 [2021-11-23 02:35:44,507 INFO L226 Difference]: Without dead ends: 43216 [2021-11-23 02:35:44,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:35:44,646 INFO L933 BasicCegarLoop]: 7147 mSDtfsCounter, 5409 mSDsluCounter, 5695 mSDsCounter, 0 mSdLazyCounter, 1609 mSolverCounterSat, 40 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5414 SdHoareTripleChecker+Valid, 12194 SdHoareTripleChecker+Invalid, 1654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1609 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:35:44,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5414 Valid, 12194 Invalid, 1654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1609 Invalid, 5 Unknown, 0 Unchecked, 22.7s Time] [2021-11-23 02:35:44,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43216 states. [2021-11-23 02:35:46,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43216 to 43199. [2021-11-23 02:35:46,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43199 states, 26746 states have (on average 1.3333208704105286) internal successors, (35661), 27541 states have internal predecessors, (35661), 13333 states have call successors, (13333), 3186 states have call predecessors, (13333), 3119 states have return successors, (13806), 13000 states have call predecessors, (13806), 13331 states have call successors, (13806) [2021-11-23 02:35:46,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43199 states to 43199 states and 62800 transitions. [2021-11-23 02:35:46,853 INFO L78 Accepts]: Start accepts. Automaton has 43199 states and 62800 transitions. Word has length 219 [2021-11-23 02:35:46,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:35:46,855 INFO L470 AbstractCegarLoop]: Abstraction has 43199 states and 62800 transitions. [2021-11-23 02:35:46,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-23 02:35:46,855 INFO L276 IsEmpty]: Start isEmpty. Operand 43199 states and 62800 transitions. [2021-11-23 02:35:46,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-23 02:35:46,882 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:35:46,883 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:35:46,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c144-7da8-4633-b180-767ac82d8ed3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:35:47,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c144-7da8-4633-b180-767ac82d8ed3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:35:47,110 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:35:47,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:35:47,111 INFO L85 PathProgramCache]: Analyzing trace with hash 2083021327, now seen corresponding path program 1 times [2021-11-23 02:35:47,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:35:47,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347002335] [2021-11-23 02:35:47,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:35:47,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:35:47,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:35:47,585 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:35:47,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347002335] [2021-11-23 02:35:47,594 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2021-11-23 02:35:47,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768180931] [2021-11-23 02:35:47,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:35:47,595 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:35:47,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c144-7da8-4633-b180-767ac82d8ed3/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:35:47,596 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c144-7da8-4633-b180-767ac82d8ed3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:35:47,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c144-7da8-4633-b180-767ac82d8ed3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:35:50,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:35:50,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 9432 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 02:35:50,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:35:50,938 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2021-11-23 02:35:50,938 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:35:50,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768180931] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:35:50,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:35:50,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:35:50,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793867212] [2021-11-23 02:35:50,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:35:50,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:35:50,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:35:50,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:35:50,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:35:50,941 INFO L87 Difference]: Start difference. First operand 43199 states and 62800 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-23 02:35:54,833 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:35:57,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:36:03,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:36:05,055 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:36:13,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:36:13,899 INFO L93 Difference]: Finished difference Result 112745 states and 164331 transitions. [2021-11-23 02:36:13,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:36:13,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 243 [2021-11-23 02:36:13,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:36:14,335 INFO L225 Difference]: With dead ends: 112745 [2021-11-23 02:36:14,335 INFO L226 Difference]: Without dead ends: 69588 [2021-11-23 02:36:14,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:36:14,479 INFO L933 BasicCegarLoop]: 7024 mSDtfsCounter, 5599 mSDsluCounter, 5748 mSDsCounter, 0 mSdLazyCounter, 1500 mSolverCounterSat, 12 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5604 SdHoareTripleChecker+Valid, 12120 SdHoareTripleChecker+Invalid, 1515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1500 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:36:14,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5604 Valid, 12120 Invalid, 1515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1500 Invalid, 3 Unknown, 0 Unchecked, 20.4s Time] [2021-11-23 02:36:14,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69588 states. [2021-11-23 02:36:17,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69588 to 69573. [2021-11-23 02:36:17,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69573 states, 43182 states have (on average 1.3360891112037423) internal successors, (57695), 44471 states have internal predecessors, (57695), 21504 states have call successors, (21504), 4995 states have call predecessors, (21504), 4886 states have return successors, (22281), 20943 states have call predecessors, (22281), 21502 states have call successors, (22281) [2021-11-23 02:36:17,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69573 states to 69573 states and 101480 transitions. [2021-11-23 02:36:17,942 INFO L78 Accepts]: Start accepts. Automaton has 69573 states and 101480 transitions. Word has length 243 [2021-11-23 02:36:17,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:36:17,942 INFO L470 AbstractCegarLoop]: Abstraction has 69573 states and 101480 transitions. [2021-11-23 02:36:17,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-23 02:36:17,943 INFO L276 IsEmpty]: Start isEmpty. Operand 69573 states and 101480 transitions. [2021-11-23 02:36:17,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2021-11-23 02:36:17,969 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:36:17,969 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:36:18,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c144-7da8-4633-b180-767ac82d8ed3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:36:18,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f6c144-7da8-4633-b180-767ac82d8ed3/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-23 02:36:18,190 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:36:18,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:36:18,191 INFO L85 PathProgramCache]: Analyzing trace with hash 118150116, now seen corresponding path program 1 times [2021-11-23 02:36:18,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:36:18,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93099014] [2021-11-23 02:36:18,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:36:18,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:36:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:36:18,760 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 729 trivial. 0 not checked. [2021-11-23 02:36:18,761 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:36:18,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93099014] [2021-11-23 02:36:18,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93099014] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:36:18,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:36:18,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:36:18,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411642070] [2021-11-23 02:36:18,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:36:18,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:36:18,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:36:18,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:36:18,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:36:18,764 INFO L87 Difference]: Start difference. First operand 69573 states and 101480 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-23 02:36:20,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:36:24,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:36:26,798 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:36:31,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:36:33,577 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:36:38,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:36:44,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:36:44,311 INFO L93 Difference]: Finished difference Result 156156 states and 228250 transitions. [2021-11-23 02:36:44,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:36:44,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 279 [2021-11-23 02:36:44,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:36:44,794 INFO L225 Difference]: With dead ends: 156156 [2021-11-23 02:36:44,794 INFO L226 Difference]: Without dead ends: 95678 [2021-11-23 02:36:45,136 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 [2021-11-23 02:36:45,137 INFO L933 BasicCegarLoop]: 9581 mSDtfsCounter, 5575 mSDsluCounter, 5510 mSDsCounter, 0 mSdLazyCounter, 1875 mSolverCounterSat, 21 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5579 SdHoareTripleChecker+Valid, 14478 SdHoareTripleChecker+Invalid, 1902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1875 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:36:45,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5579 Valid, 14478 Invalid, 1902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1875 Invalid, 6 Unknown, 0 Unchecked, 21.9s Time] [2021-11-23 02:36:45,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95678 states. [2021-11-23 02:36:49,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95678 to 95647. [2021-11-23 02:36:49,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95647 states, 59496 states have (on average 1.3375857200484067) internal successors, (79581), 61259 states have internal predecessors, (79581), 29523 states have call successors, (29523), 6776 states have call predecessors, (29523), 6627 states have return successors, (30592), 28760 states have call predecessors, (30592), 29521 states have call successors, (30592) [2021-11-23 02:36:50,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95647 states to 95647 states and 139696 transitions. [2021-11-23 02:36:50,204 INFO L78 Accepts]: Start accepts. Automaton has 95647 states and 139696 transitions. Word has length 279 [2021-11-23 02:36:50,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:36:50,205 INFO L470 AbstractCegarLoop]: Abstraction has 95647 states and 139696 transitions. [2021-11-23 02:36:50,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-23 02:36:50,205 INFO L276 IsEmpty]: Start isEmpty. Operand 95647 states and 139696 transitions. [2021-11-23 02:36:50,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2021-11-23 02:36:50,242 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:36:50,242 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:36:50,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 02:36:50,243 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:36:50,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:36:50,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1566424905, now seen corresponding path program 1 times [2021-11-23 02:36:50,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:36:50,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251890641] [2021-11-23 02:36:50,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:36:50,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:36:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:36:50,887 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 755 trivial. 0 not checked. [2021-11-23 02:36:50,887 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:36:50,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251890641] [2021-11-23 02:36:50,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251890641] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:36:50,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:36:50,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:36:50,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588119648] [2021-11-23 02:36:50,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:36:50,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:36:50,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:36:50,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:36:50,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:36:50,890 INFO L87 Difference]: Start difference. First operand 95647 states and 139696 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-23 02:36:53,090 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:36:56,111 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:36:57,671 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:37:01,669 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:37:02,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:37:06,177 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:37:08,576 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:37:11,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:37:17,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:37:17,839 INFO L93 Difference]: Finished difference Result 136284 states and 200400 transitions. [2021-11-23 02:37:17,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:37:17,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 304 [2021-11-23 02:37:17,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:37:18,710 INFO L225 Difference]: With dead ends: 136284 [2021-11-23 02:37:18,710 INFO L226 Difference]: Without dead ends: 136276 [2021-11-23 02:37:18,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:37:18,769 INFO L933 BasicCegarLoop]: 6443 mSDtfsCounter, 5548 mSDsluCounter, 5142 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 3 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5548 SdHoareTripleChecker+Valid, 11022 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:37:18,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5548 Valid, 11022 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1252 Invalid, 5 Unknown, 0 Unchecked, 23.1s Time] [2021-11-23 02:37:18,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136276 states. [2021-11-23 02:37:24,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136276 to 135902. [2021-11-23 02:37:24,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135902 states, 84728 states have (on average 1.3398876404494382) internal successors, (113526), 87241 states have internal predecessors, (113526), 41809 states have call successors, (41809), 9612 states have call predecessors, (41809), 9364 states have return successors, (44455), 40611 states have call predecessors, (44455), 41807 states have call successors, (44455) [2021-11-23 02:37:25,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135902 states to 135902 states and 199790 transitions. [2021-11-23 02:37:25,411 INFO L78 Accepts]: Start accepts. Automaton has 135902 states and 199790 transitions. Word has length 304 [2021-11-23 02:37:25,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:37:25,412 INFO L470 AbstractCegarLoop]: Abstraction has 135902 states and 199790 transitions. [2021-11-23 02:37:25,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-23 02:37:25,413 INFO L276 IsEmpty]: Start isEmpty. Operand 135902 states and 199790 transitions. [2021-11-23 02:37:25,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2021-11-23 02:37:25,591 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:37:25,591 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:37:25,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 02:37:25,592 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:37:25,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:37:25,592 INFO L85 PathProgramCache]: Analyzing trace with hash -380399129, now seen corresponding path program 1 times [2021-11-23 02:37:25,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:37:25,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635893981] [2021-11-23 02:37:25,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:37:25,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:37:25,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:37:26,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1009 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 997 trivial. 0 not checked. [2021-11-23 02:37:26,262 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:37:26,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635893981] [2021-11-23 02:37:26,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635893981] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:37:26,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:37:26,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:37:26,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224400881] [2021-11-23 02:37:26,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:37:26,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:37:26,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:37:26,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:37:26,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:37:26,265 INFO L87 Difference]: Start difference. First operand 135902 states and 199790 transitions. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 3 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2021-11-23 02:37:28,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:37:31,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:37:34,622 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers []