./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-intel-e1000-e1000.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f587e9a-0396-4971-bd8b-973005889903/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f587e9a-0396-4971-bd8b-973005889903/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f587e9a-0396-4971-bd8b-973005889903/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f587e9a-0396-4971-bd8b-973005889903/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-intel-e1000-e1000.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f587e9a-0396-4971-bd8b-973005889903/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f587e9a-0396-4971-bd8b-973005889903/bin/utaipan-Q6hlc19bkW --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 e282dee958ab2234ea07036ebd12b370ba9c340bf289a9a8f423d22b133c3ff1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 15:42:45,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:42:45,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:42:45,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:42:46,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:42:46,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:42:46,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:42:46,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:42:46,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:42:46,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:42:46,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:42:46,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:42:46,013 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:42:46,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:42:46,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:42:46,017 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:42:46,018 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:42:46,019 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:42:46,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:42:46,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:42:46,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:42:46,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:42:46,038 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:42:46,039 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:42:46,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:42:46,053 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:42:46,053 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:42:46,054 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:42:46,054 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:42:46,055 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:42:46,056 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:42:46,056 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:42:46,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:42:46,058 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:42:46,059 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:42:46,059 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:42:46,060 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:42:46,060 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:42:46,060 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:42:46,061 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:42:46,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:42:46,070 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f587e9a-0396-4971-bd8b-973005889903/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 15:42:46,105 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:42:46,113 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:42:46,114 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:42:46,114 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:42:46,115 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:42:46,116 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:42:46,116 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:42:46,116 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:42:46,116 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:42:46,117 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:42:46,118 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:42:46,118 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:42:46,118 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:42:46,118 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:42:46,119 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:42:46,119 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:42:46,119 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:42:46,119 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:42:46,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:42:46,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:42:46,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:42:46,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:42:46,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:42:46,121 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:42:46,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:42:46,122 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:42:46,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:42:46,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:42:46,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:42:46,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:42:46,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:42:46,124 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:42:46,124 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:42:46,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:42:46,124 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:42:46,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:42:46,125 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:42:46,125 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:42:46,125 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f587e9a-0396-4971-bd8b-973005889903/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f587e9a-0396-4971-bd8b-973005889903/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e282dee958ab2234ea07036ebd12b370ba9c340bf289a9a8f423d22b133c3ff1 [2022-11-23 15:42:46,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:42:46,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:42:46,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:42:46,484 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:42:46,485 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:42:46,486 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f587e9a-0396-4971-bd8b-973005889903/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-23 15:42:49,553 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:42:50,485 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:42:50,485 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f587e9a-0396-4971-bd8b-973005889903/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-23 15:42:50,577 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f587e9a-0396-4971-bd8b-973005889903/bin/utaipan-Q6hlc19bkW/data/d55d2d835/9264242f24334367a43dea1e2ebc6a93/FLAG6ec33df21 [2022-11-23 15:42:50,599 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f587e9a-0396-4971-bd8b-973005889903/bin/utaipan-Q6hlc19bkW/data/d55d2d835/9264242f24334367a43dea1e2ebc6a93 [2022-11-23 15:42:50,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:42:50,607 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:42:50,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:42:50,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:42:50,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:42:50,617 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:42:50" (1/1) ... [2022-11-23 15:42:50,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36269dd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:50, skipping insertion in model container [2022-11-23 15:42:50,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:42:50" (1/1) ... [2022-11-23 15:42:50,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:42:50,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:42:59,109 WARN L237 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_4f587e9a-0396-4971-bd8b-973005889903/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-intel-e1000-e1000.cil.i[899059,899072] [2022-11-23 15:42:59,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:42:59,305 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:43:00,262 WARN L237 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_4f587e9a-0396-4971-bd8b-973005889903/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-intel-e1000-e1000.cil.i[899059,899072] [2022-11-23 15:43:00,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:43:00,677 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:43:00,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:00 WrapperNode [2022-11-23 15:43:00,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:43:00,679 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:43:00,679 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:43:00,679 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:43:00,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:00" (1/1) ... [2022-11-23 15:43:01,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:00" (1/1) ... [2022-11-23 15:43:01,894 INFO L138 Inliner]: procedures = 711, calls = 16202, calls flagged for inlining = 397, calls inlined = 350, statements flattened = 28558 [2022-11-23 15:43:01,905 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:43:01,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:43:01,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:43:01,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:43:01,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:00" (1/1) ... [2022-11-23 15:43:01,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:00" (1/1) ... [2022-11-23 15:43:02,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:00" (1/1) ... [2022-11-23 15:43:02,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:00" (1/1) ... [2022-11-23 15:43:03,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:00" (1/1) ... [2022-11-23 15:43:03,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:00" (1/1) ... [2022-11-23 15:43:03,347 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:00" (1/1) ... [2022-11-23 15:43:03,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:00" (1/1) ... [2022-11-23 15:43:03,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:43:03,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:43:03,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:43:03,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:43:03,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:00" (1/1) ... [2022-11-23 15:43:03,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:43:03,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f587e9a-0396-4971-bd8b-973005889903/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:43:03,733 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f587e9a-0396-4971-bd8b-973005889903/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:43:03,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f587e9a-0396-4971-bd8b-973005889903/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:43:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-23 15:43:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-23 15:43:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_fc_after_link_up [2022-11-23 15:43:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_fc_after_link_up [2022-11-23 15:43:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-23 15:43:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-23 15:43:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_collision_dist [2022-11-23 15:43:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_collision_dist [2022-11-23 15:43:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_ee_clk [2022-11-23 15:43:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_ee_clk [2022-11-23 15:43:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-23 15:43:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-23 15:43:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-23 15:43:03,777 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-23 15:43:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 15:43:03,777 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 15:43:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure reg_pattern_test [2022-11-23 15:43:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_pattern_test [2022-11-23 15:43:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-23 15:43:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-23 15:43:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-23 15:43:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-23 15:43:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-23 15:43:03,779 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-23 15:43:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_eeprom [2022-11-23 15:43:03,779 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_eeprom [2022-11-23 15:43:03,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 15:43:03,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 15:43:03,781 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_manageability [2022-11-23 15:43:03,781 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_manageability [2022-11-23 15:43:03,781 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_in_ee_bits [2022-11-23 15:43:03,781 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_in_ee_bits [2022-11-23 15:43:03,781 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down_and_stop [2022-11-23 15:43:03,781 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down_and_stop [2022-11-23 15:43:03,781 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-23 15:43:03,781 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-23 15:43:03,782 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-23 15:43:03,782 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-23 15:43:03,782 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-23 15:43:03,782 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-23 15:43:03,782 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_unmap_and_free_tx_resource [2022-11-23 15:43:03,782 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_unmap_and_free_tx_resource [2022-11-23 15:43:03,782 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-23 15:43:03,783 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-23 15:43:03,783 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_get_info [2022-11-23 15:43:03,783 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_get_info [2022-11-23 15:43:03,783 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-23 15:43:03,783 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-23 15:43:03,783 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-23 15:43:03,784 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-23 15:43:03,784 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_do_read_eeprom [2022-11-23 15:43:03,785 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_do_read_eeprom [2022-11-23 15:43:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_rctl [2022-11-23 15:43:03,785 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_rctl [2022-11-23 15:43:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-23 15:43:03,785 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-23 15:43:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set [2022-11-23 15:43:03,786 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set [2022-11-23 15:43:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2022-11-23 15:43:03,786 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2022-11-23 15:43:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-23 15:43:03,786 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-23 15:43:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset [2022-11-23 15:43:03,786 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset [2022-11-23 15:43:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-11-23 15:43:03,787 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-11-23 15:43:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_eeprom_params [2022-11-23 15:43:03,787 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_eeprom_params [2022-11-23 15:43:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2022-11-23 15:43:03,787 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2022-11-23 15:43:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-23 15:43:03,788 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-23 15:43:03,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-23 15:43:03,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-23 15:43:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-23 15:43:03,789 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-23 15:43:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-23 15:43:03,789 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-23 15:43:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-23 15:43:03,790 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-23 15:43:03,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 15:43:03,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 15:43:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-23 15:43:03,791 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-23 15:43:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-23 15:43:03,791 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-23 15:43:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:43:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-23 15:43:03,791 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-23 15:43:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg [2022-11-23 15:43:03,792 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg [2022-11-23 15:43:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_speed_and_duplex [2022-11-23 15:43:03,792 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_speed_and_duplex [2022-11-23 15:43:03,793 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_standby_eeprom [2022-11-23 15:43:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_standby_eeprom [2022-11-23 15:43:03,793 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2022-11-23 15:43:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2022-11-23 15:43:03,793 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-23 15:43:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-23 15:43:03,794 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure_rx [2022-11-23 15:43:03,794 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure_rx [2022-11-23 15:43:03,794 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-23 15:43:03,794 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-23 15:43:03,794 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_hw_dev [2022-11-23 15:43:03,794 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_hw_dev [2022-11-23 15:43:03,794 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_stats [2022-11-23 15:43:03,794 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_stats [2022-11-23 15:43:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_validate_option [2022-11-23 15:43:03,795 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_validate_option [2022-11-23 15:43:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-23 15:43:03,796 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-23 15:43:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-23 15:43:03,799 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-23 15:43:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link [2022-11-23 15:43:03,799 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link [2022-11-23 15:43:03,801 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_irq [2022-11-23 15:43:03,801 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_irq [2022-11-23 15:43:03,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 15:43:03,802 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-23 15:43:03,802 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-23 15:43:03,807 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_link [2022-11-23 15:43:03,807 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_link [2022-11-23 15:43:03,807 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_vlan_mode [2022-11-23 15:43:03,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_vlan_mode [2022-11-23 15:43:03,808 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset [2022-11-23 15:43:03,808 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset [2022-11-23 15:43:03,808 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-23 15:43:03,808 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-23 15:43:03,808 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_dsp_after_link_change [2022-11-23 15:43:03,808 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_dsp_after_link_change [2022-11-23 15:43:03,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 15:43:03,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-23 15:43:03,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-23 15:43:03,809 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_maybe_stop_tx [2022-11-23 15:43:03,809 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_maybe_stop_tx [2022-11-23 15:43:03,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:43:03,809 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-23 15:43:03,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-23 15:43:03,809 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shutdown [2022-11-23 15:43:03,809 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shutdown [2022-11-23 15:43:03,809 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2022-11-23 15:43:03,810 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2022-11-23 15:43:03,810 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_used [2022-11-23 15:43:03,810 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_used [2022-11-23 15:43:03,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 15:43:03,810 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 15:43:03,810 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_disable_receiver [2022-11-23 15:43:03,810 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_disable_receiver [2022-11-23 15:43:03,810 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_kill_vid [2022-11-23 15:43:03,810 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_kill_vid [2022-11-23 15:43:03,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-23 15:43:03,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-23 15:43:03,811 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_force_mac_fc [2022-11-23 15:43:03,811 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_force_mac_fc [2022-11-23 15:43:03,811 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-23 15:43:03,811 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-23 15:43:03,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-23 15:43:03,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-23 15:43:03,811 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-11-23 15:43:03,812 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-11-23 15:43:03,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-23 15:43:03,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-23 15:43:03,812 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_leave_82542_rst [2022-11-23 15:43:03,812 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_leave_82542_rst [2022-11-23 15:43:03,812 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_has_link [2022-11-23 15:43:03,813 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_has_link [2022-11-23 15:43:03,813 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-23 15:43:03,813 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-23 15:43:03,813 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-23 15:43:03,813 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-23 15:43:03,813 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-11-23 15:43:03,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-11-23 15:43:03,813 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_tx_resources [2022-11-23 15:43:03,813 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_tx_resources [2022-11-23 15:43:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-23 15:43:03,814 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-23 15:43:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure pci_wake_from_d3 [2022-11-23 15:43:03,814 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_wake_from_d3 [2022-11-23 15:43:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure reg_set_and_check [2022-11-23 15:43:03,814 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_set_and_check [2022-11-23 15:43:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:43:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-23 15:43:03,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-23 15:43:03,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-23 15:43:03,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-23 15:43:03,816 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_netpoll [2022-11-23 15:43:03,816 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_netpoll [2022-11-23 15:43:03,816 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-23 15:43:03,816 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-23 15:43:03,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:43:03,816 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-23 15:43:03,817 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-23 15:43:03,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-23 15:43:03,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-23 15:43:03,817 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 15:43:03,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 15:43:03,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:43:03,817 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_rx_mode [2022-11-23 15:43:03,817 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_rx_mode [2022-11-23 15:43:03,817 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-23 15:43:03,818 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-23 15:43:03,818 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-23 15:43:03,818 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-23 15:43:03,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-23 15:43:03,818 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_open [2022-11-23 15:43:03,818 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_open [2022-11-23 15:43:03,818 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-23 15:43:03,818 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-23 15:43:03,818 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_hw_reset [2022-11-23 15:43:03,819 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_hw_reset [2022-11-23 15:43:03,819 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_vfta [2022-11-23 15:43:03,819 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_vfta [2022-11-23 15:43:03,819 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-23 15:43:03,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-23 15:43:03,819 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_remove [2022-11-23 15:43:03,819 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_remove [2022-11-23 15:43:03,819 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_ee_bits [2022-11-23 15:43:03,819 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_ee_bits [2022-11-23 15:43:03,819 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure [2022-11-23 15:43:03,820 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure [2022-11-23 15:43:03,820 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-23 15:43:03,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-23 15:43:03,820 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-23 15:43:03,820 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-23 15:43:03,820 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-23 15:43:03,820 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-23 15:43:03,820 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_cable_length [2022-11-23 15:43:03,820 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_cable_length [2022-11-23 15:43:03,821 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-23 15:43:03,821 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-23 15:43:03,821 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_ee_clk [2022-11-23 15:43:03,821 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_ee_clk [2022-11-23 15:43:03,821 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_rx_resources [2022-11-23 15:43:03,821 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_rx_resources [2022-11-23 15:43:03,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-23 15:43:03,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-23 15:43:03,821 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_add_vid [2022-11-23 15:43:03,822 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_add_vid [2022-11-23 15:43:03,826 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2022-11-23 15:43:03,826 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2022-11-23 15:43:03,826 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2022-11-23 15:43:03,826 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2022-11-23 15:43:03,826 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-23 15:43:03,826 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-23 15:43:03,827 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_write [2022-11-23 15:43:03,827 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_write [2022-11-23 15:43:03,827 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-23 15:43:03,828 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-23 15:43:03,828 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_resume [2022-11-23 15:43:03,828 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_resume [2022-11-23 15:43:03,829 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-23 15:43:03,829 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-23 15:43:03,829 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-23 15:43:03,829 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-23 15:43:03,829 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom [2022-11-23 15:43:03,829 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom [2022-11-23 15:43:03,829 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_enter_82542_rst [2022-11-23 15:43:03,829 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_enter_82542_rst [2022-11-23 15:43:03,829 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_acquire_eeprom [2022-11-23 15:43:03,829 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_acquire_eeprom [2022-11-23 15:43:03,830 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-23 15:43:03,830 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-23 15:43:03,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:43:03,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:43:03,830 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_down_phy [2022-11-23 15:43:03,830 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_down_phy [2022-11-23 15:43:03,830 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-23 15:43:03,830 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-23 15:43:03,830 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2022-11-23 15:43:03,830 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2022-11-23 15:43:03,830 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_spi_eeprom_ready [2022-11-23 15:43:03,831 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_spi_eeprom_ready [2022-11-23 15:43:03,831 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_clear_mwi [2022-11-23 15:43:03,831 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_clear_mwi [2022-11-23 15:43:03,831 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-23 15:43:03,831 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-23 15:43:03,831 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_up_phy [2022-11-23 15:43:03,831 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_up_phy [2022-11-23 15:43:03,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 15:43:03,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 15:43:03,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 15:43:03,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 15:43:03,832 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-23 15:43:03,832 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-23 15:43:03,832 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-23 15:43:03,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-23 15:43:03,832 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-23 15:43:03,832 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-23 15:43:03,832 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg_ex [2022-11-23 15:43:03,832 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg_ex [2022-11-23 15:43:03,832 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-23 15:43:03,833 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-23 15:43:03,833 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-23 15:43:03,833 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-23 15:43:03,833 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-23 15:43:03,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-23 15:43:03,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-23 15:43:03,833 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_resume [2022-11-23 15:43:03,833 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_resume [2022-11-23 15:43:03,833 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-23 15:43:03,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-23 15:43:03,834 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-23 15:43:03,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-23 15:43:03,834 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_polarity [2022-11-23 15:43:03,834 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_polarity [2022-11-23 15:43:03,834 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-23 15:43:03,834 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-23 15:43:03,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 15:43:03,834 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 15:43:03,834 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-23 15:43:03,834 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-23 15:43:03,834 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_mdi_clk [2022-11-23 15:43:03,835 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_mdi_clk [2022-11-23 15:43:03,835 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_mac_to_phy [2022-11-23 15:43:03,835 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_mac_to_phy [2022-11-23 15:43:03,835 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom_len [2022-11-23 15:43:03,835 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom_len [2022-11-23 15:43:03,835 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-23 15:43:03,835 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-23 15:43:03,835 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-11-23 15:43:03,835 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-11-23 15:43:03,835 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_rx_resources [2022-11-23 15:43:03,836 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_rx_resources [2022-11-23 15:43:03,836 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-11-23 15:43:03,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-11-23 15:43:03,836 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-23 15:43:03,836 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-23 15:43:03,836 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_close [2022-11-23 15:43:03,836 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_close [2022-11-23 15:43:03,836 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset_clk_and_crs [2022-11-23 15:43:03,836 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset_clk_and_crs [2022-11-23 15:43:03,836 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-23 15:43:03,837 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-23 15:43:03,837 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-23 15:43:03,837 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-23 15:43:03,837 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-23 15:43:03,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-23 15:43:03,837 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-23 15:43:03,837 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-23 15:43:03,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:43:03,837 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-23 15:43:03,837 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-23 15:43:03,838 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-23 15:43:03,838 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-23 15:43:03,838 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-23 15:43:03,838 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-23 15:43:03,838 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_regs_len [2022-11-23 15:43:03,838 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_regs_len [2022-11-23 15:43:03,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:43:03,838 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-23 15:43:03,838 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-23 15:43:03,838 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-23 15:43:03,838 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-23 15:43:03,839 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2022-11-23 15:43:03,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2022-11-23 15:43:03,839 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_tx_resources [2022-11-23 15:43:03,839 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_tx_resources [2022-11-23 15:43:03,839 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_setup_autoneg [2022-11-23 15:43:03,839 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_setup_autoneg [2022-11-23 15:43:03,839 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_mng_vlan [2022-11-23 15:43:03,839 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_mng_vlan [2022-11-23 15:43:03,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 15:43:03,839 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_media_type [2022-11-23 15:43:03,840 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_media_type [2022-11-23 15:43:03,840 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_eeprom [2022-11-23 15:43:03,840 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_eeprom [2022-11-23 15:43:03,840 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_filter_on_off [2022-11-23 15:43:03,840 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_filter_on_off [2022-11-23 15:43:03,840 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-23 15:43:03,840 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-23 15:43:03,840 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_nway_reset [2022-11-23 15:43:03,840 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_nway_reset [2022-11-23 15:43:03,841 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-23 15:43:03,841 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-23 15:43:03,841 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_phy_loopback [2022-11-23 15:43:03,841 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_phy_loopback [2022-11-23 15:43:03,841 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-23 15:43:03,841 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-23 15:43:03,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-23 15:43:03,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-23 15:43:03,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-23 15:43:03,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-23 15:43:03,842 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-23 15:43:03,842 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-23 15:43:03,842 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_all_rx_rings [2022-11-23 15:43:03,842 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_all_rx_rings [2022-11-23 15:43:03,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-23 15:43:03,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-23 15:43:03,842 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_enable [2022-11-23 15:43:03,842 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_enable [2022-11-23 15:43:03,842 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_up [2022-11-23 15:43:03,842 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_up [2022-11-23 15:43:03,842 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_tx_timeout [2022-11-23 15:43:03,843 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_tx_timeout [2022-11-23 15:43:03,843 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reinit_locked [2022-11-23 15:43:03,843 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reinit_locked [2022-11-23 15:43:03,843 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2022-11-23 15:43:03,843 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2022-11-23 15:43:03,843 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_phy_reg [2022-11-23 15:43:03,843 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_phy_reg [2022-11-23 15:43:03,843 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_rx_resources [2022-11-23 15:43:03,843 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_rx_resources [2022-11-23 15:43:03,844 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_mdi_clk [2022-11-23 15:43:03,844 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_mdi_clk [2022-11-23 15:43:03,844 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-23 15:43:03,844 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-23 15:43:03,844 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-23 15:43:03,844 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-23 15:43:03,844 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-23 15:43:03,844 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-23 15:43:03,844 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_copper_link_rtl_setup [2022-11-23 15:43:03,844 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_copper_link_rtl_setup [2022-11-23 15:43:03,844 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-23 15:43:03,845 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-23 15:43:03,845 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_eeprom [2022-11-23 15:43:03,845 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_eeprom [2022-11-23 15:43:03,845 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_desc_rings [2022-11-23 15:43:03,845 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_desc_rings [2022-11-23 15:43:03,845 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_set_mwi [2022-11-23 15:43:03,845 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_set_mwi [2022-11-23 15:43:03,845 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-23 15:43:03,845 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-23 15:43:03,845 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-23 15:43:03,846 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-23 15:43:03,846 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_polarity_reversal_workaround [2022-11-23 15:43:03,846 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_polarity_reversal_workaround [2022-11-23 15:43:03,846 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-23 15:43:03,846 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-23 15:43:03,846 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-23 15:43:03,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-23 15:43:03,846 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 15:43:03,846 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 15:43:03,846 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_link_test [2022-11-23 15:43:03,847 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_link_test [2022-11-23 15:43:03,847 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_mdi_bits [2022-11-23 15:43:03,847 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_mdi_bits [2022-11-23 15:43:03,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:43:03,847 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_64k_bound [2022-11-23 15:43:03,847 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_64k_bound [2022-11-23 15:43:03,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 15:43:03,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 15:43:03,847 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_spd_dplx [2022-11-23 15:43:03,847 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_spd_dplx [2022-11-23 15:43:03,848 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2022-11-23 15:43:03,848 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2022-11-23 15:43:03,848 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down [2022-11-23 15:43:03,848 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down [2022-11-23 15:43:03,848 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-23 15:43:03,848 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-23 15:43:03,848 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_init_script [2022-11-23 15:43:03,848 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_init_script [2022-11-23 15:43:03,848 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-23 15:43:03,848 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-23 15:43:03,849 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-23 15:43:03,849 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-23 15:43:03,849 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_request_irq [2022-11-23 15:43:03,849 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_request_irq [2022-11-23 15:43:03,849 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-23 15:43:03,849 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-23 15:43:03,849 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_eeprom [2022-11-23 15:43:03,849 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_eeprom [2022-11-23 15:43:03,849 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw [2022-11-23 15:43:03,849 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw [2022-11-23 15:43:03,850 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_disable [2022-11-23 15:43:03,850 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_disable [2022-11-23 15:43:03,850 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-23 15:43:03,850 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-23 15:43:03,850 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-23 15:43:03,850 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-23 15:43:03,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_10 [2022-11-23 15:43:03,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_10 [2022-11-23 15:43:03,850 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_tx_ring [2022-11-23 15:43:03,850 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_tx_ring [2022-11-23 15:43:03,851 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_shutdown [2022-11-23 15:43:03,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_shutdown [2022-11-23 15:43:03,851 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_tx_resources [2022-11-23 15:43:03,851 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_tx_resources [2022-11-23 15:43:03,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-23 15:43:03,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-23 15:43:03,851 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-23 15:43:03,932 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-23 15:43:03,932 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-23 15:43:03,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-23 15:43:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-23 15:43:03,933 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-23 15:43:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_manageability [2022-11-23 15:43:03,933 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_manageability [2022-11-23 15:43:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-11-23 15:43:03,933 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-11-23 15:43:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-23 15:43:03,933 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-23 15:43:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_wol_exclusion [2022-11-23 15:43:03,933 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_wol_exclusion [2022-11-23 15:43:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-23 15:43:03,934 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-23 15:43:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-23 15:43:03,934 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-23 15:43:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_e1000_exit_module_13_2 [2022-11-23 15:43:03,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_e1000_exit_module_13_2 [2022-11-23 15:43:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-23 15:43:03,934 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-23 15:43:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-23 15:43:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:43:03,935 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-23 15:43:03,935 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-23 15:43:03,935 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_rx_ring [2022-11-23 15:43:03,935 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_rx_ring [2022-11-23 15:43:03,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-23 15:43:03,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-23 15:43:03,935 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-23 15:43:06,210 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:43:06,214 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:43:07,892 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 15:44:11,523 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-23 15:44:12,146 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:44:19,639 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:44:19,639 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-23 15:44:19,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:44:19 BoogieIcfgContainer [2022-11-23 15:44:19,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:44:19,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:44:19,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:44:19,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:44:19,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:42:50" (1/3) ... [2022-11-23 15:44:19,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d6379f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:44:19, skipping insertion in model container [2022-11-23 15:44:19,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:00" (2/3) ... [2022-11-23 15:44:19,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d6379f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:44:19, skipping insertion in model container [2022-11-23 15:44:19,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:44:19" (3/3) ... [2022-11-23 15:44:19,657 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-23 15:44:19,677 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:44:19,678 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:44:19,835 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:44:19,841 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@41384df6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:44:19,842 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:44:19,864 INFO L276 IsEmpty]: Start isEmpty. Operand has 6719 states, 4306 states have (on average 1.3420808174640038) internal successors, (5779), 4398 states have internal predecessors, (5779), 2170 states have call successors, (2170), 245 states have call predecessors, (2170), 244 states have return successors, (2164), 2156 states have call predecessors, (2164), 2164 states have call successors, (2164) [2022-11-23 15:44:19,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-11-23 15:44:19,888 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:44:19,889 INFO L195 NwaCegarLoop]: trace histogram [24, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:44:19,890 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:44:19,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:44:19,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1161359649, now seen corresponding path program 1 times [2022-11-23 15:44:19,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:44:19,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908914179] [2022-11-23 15:44:19,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:44:19,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:44:21,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:44:22,435 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2070 trivial. 0 not checked. [2022-11-23 15:44:22,436 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:44:22,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908914179] [2022-11-23 15:44:22,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908914179] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:44:22,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:44:22,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:44:22,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208488852] [2022-11-23 15:44:22,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:44:22,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:44:22,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:44:22,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:44:22,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:44:22,510 INFO L87 Difference]: Start difference. First operand has 6719 states, 4306 states have (on average 1.3420808174640038) internal successors, (5779), 4398 states have internal predecessors, (5779), 2170 states have call successors, (2170), 245 states have call predecessors, (2170), 244 states have return successors, (2164), 2156 states have call predecessors, (2164), 2164 states have call successors, (2164) Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-23 15:44:31,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:44:39,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:44:42,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:44:45,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:44:47,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:44:48,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:44:48,419 INFO L93 Difference]: Finished difference Result 19560 states and 29501 transitions. [2022-11-23 15:44:48,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:44:48,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 250 [2022-11-23 15:44:48,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:44:48,595 INFO L225 Difference]: With dead ends: 19560 [2022-11-23 15:44:48,596 INFO L226 Difference]: Without dead ends: 12878 [2022-11-23 15:44:48,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:44:48,683 INFO L413 NwaCegarLoop]: 11334 mSDtfsCounter, 9288 mSDsluCounter, 9245 mSDsCounter, 0 mSdLazyCounter, 1637 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9289 SdHoareTripleChecker+Valid, 20579 SdHoareTripleChecker+Invalid, 1648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1637 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:44:48,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9289 Valid, 20579 Invalid, 1648 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1637 Invalid, 4 Unknown, 0 Unchecked, 24.8s Time] [2022-11-23 15:44:48,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12878 states. [2022-11-23 15:44:50,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12878 to 12870. [2022-11-23 15:44:50,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12870 states, 8210 states have (on average 1.3362971985383678) internal successors, (10971), 8389 states have internal predecessors, (10971), 4180 states have call successors, (4180), 480 states have call predecessors, (4180), 479 states have return successors, (4178), 4161 states have call predecessors, (4178), 4177 states have call successors, (4178) [2022-11-23 15:44:50,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12870 states to 12870 states and 19329 transitions. [2022-11-23 15:44:50,372 INFO L78 Accepts]: Start accepts. Automaton has 12870 states and 19329 transitions. Word has length 250 [2022-11-23 15:44:50,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:44:50,377 INFO L495 AbstractCegarLoop]: Abstraction has 12870 states and 19329 transitions. [2022-11-23 15:44:50,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-23 15:44:50,381 INFO L276 IsEmpty]: Start isEmpty. Operand 12870 states and 19329 transitions. [2022-11-23 15:44:50,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-11-23 15:44:50,408 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:44:50,409 INFO L195 NwaCegarLoop]: trace histogram [27, 23, 23, 23, 23, 23, 23, 4, 4, 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] [2022-11-23 15:44:50,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:44:50,410 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:44:50,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:44:50,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1835906075, now seen corresponding path program 1 times [2022-11-23 15:44:50,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:44:50,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741556666] [2022-11-23 15:44:50,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:44:50,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:44:50,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:44:53,319 INFO L134 CoverageAnalysis]: Checked inductivity of 2247 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2247 trivial. 0 not checked. [2022-11-23 15:44:53,319 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:44:53,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741556666] [2022-11-23 15:44:53,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741556666] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:44:53,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:44:53,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:44:53,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439722697] [2022-11-23 15:44:53,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:44:53,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:44:53,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:44:53,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:44:53,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:44:53,322 INFO L87 Difference]: Start difference. First operand 12870 states and 19329 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-23 15:44:56,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:45:02,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:45:04,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:45:13,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:45:15,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:45:17,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:45:21,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:45:23,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:45:26,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:45:29,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:45:29,025 INFO L93 Difference]: Finished difference Result 19099 states and 28666 transitions. [2022-11-23 15:45:29,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:45:29,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 292 [2022-11-23 15:45:29,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:45:29,218 INFO L225 Difference]: With dead ends: 19099 [2022-11-23 15:45:29,218 INFO L226 Difference]: Without dead ends: 19083 [2022-11-23 15:45:29,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:45:29,245 INFO L413 NwaCegarLoop]: 11312 mSDtfsCounter, 9322 mSDsluCounter, 20504 mSDsCounter, 0 mSdLazyCounter, 2440 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9323 SdHoareTripleChecker+Valid, 31816 SdHoareTripleChecker+Invalid, 2445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2440 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:45:29,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9323 Valid, 31816 Invalid, 2445 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2440 Invalid, 5 Unknown, 0 Unchecked, 34.7s Time] [2022-11-23 15:45:29,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19083 states. [2022-11-23 15:45:30,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19083 to 19075. [2022-11-23 15:45:30,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19075 states, 12146 states have (on average 1.3347604149514243) internal successors, (16212), 12413 states have internal predecessors, (16212), 6210 states have call successors, (6210), 719 states have call predecessors, (6210), 718 states have return successors, (6209), 6183 states have call predecessors, (6209), 6207 states have call successors, (6209) [2022-11-23 15:45:31,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19075 states to 19075 states and 28631 transitions. [2022-11-23 15:45:31,073 INFO L78 Accepts]: Start accepts. Automaton has 19075 states and 28631 transitions. Word has length 292 [2022-11-23 15:45:31,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:45:31,075 INFO L495 AbstractCegarLoop]: Abstraction has 19075 states and 28631 transitions. [2022-11-23 15:45:31,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-23 15:45:31,075 INFO L276 IsEmpty]: Start isEmpty. Operand 19075 states and 28631 transitions. [2022-11-23 15:45:31,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2022-11-23 15:45:31,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:45:31,157 INFO L195 NwaCegarLoop]: trace histogram [29, 25, 25, 25, 25, 25, 25, 5, 5, 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] [2022-11-23 15:45:31,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:45:31,158 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:45:31,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:45:31,160 INFO L85 PathProgramCache]: Analyzing trace with hash 834225813, now seen corresponding path program 1 times [2022-11-23 15:45:31,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:45:31,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833040716] [2022-11-23 15:45:31,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:45:31,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:45:31,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:45:33,157 INFO L134 CoverageAnalysis]: Checked inductivity of 2647 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2644 trivial. 0 not checked. [2022-11-23 15:45:33,158 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:45:33,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833040716] [2022-11-23 15:45:33,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833040716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:45:33,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:45:33,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:45:33,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626869168] [2022-11-23 15:45:33,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:45:33,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:45:33,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:45:33,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:45:33,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:45:33,161 INFO L87 Difference]: Start difference. First operand 19075 states and 28631 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-23 15:45:43,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:45:49,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:45:50,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:45:53,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:45:55,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:45:57,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:45:59,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:45:59,067 INFO L93 Difference]: Finished difference Result 48993 states and 73558 transitions. [2022-11-23 15:45:59,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:45:59,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 410 [2022-11-23 15:45:59,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:45:59,284 INFO L225 Difference]: With dead ends: 48993 [2022-11-23 15:45:59,284 INFO L226 Difference]: Without dead ends: 29965 [2022-11-23 15:45:59,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:45:59,451 INFO L413 NwaCegarLoop]: 11323 mSDtfsCounter, 8532 mSDsluCounter, 9217 mSDsCounter, 0 mSdLazyCounter, 1722 mSolverCounterSat, 19 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8533 SdHoareTripleChecker+Valid, 20540 SdHoareTripleChecker+Invalid, 1745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1722 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:45:59,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8533 Valid, 20540 Invalid, 1745 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 1722 Invalid, 4 Unknown, 0 Unchecked, 24.7s Time] [2022-11-23 15:45:59,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29965 states. [2022-11-23 15:46:01,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29965 to 29955. [2022-11-23 15:46:01,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29955 states, 19140 states have (on average 1.3326541274817136) internal successors, (25507), 19549 states have internal predecessors, (25507), 9716 states have call successors, (9716), 1100 states have call predecessors, (9716), 1098 states have return successors, (9717), 9667 states have call predecessors, (9717), 9713 states have call successors, (9717) [2022-11-23 15:46:02,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29955 states to 29955 states and 44940 transitions. [2022-11-23 15:46:02,135 INFO L78 Accepts]: Start accepts. Automaton has 29955 states and 44940 transitions. Word has length 410 [2022-11-23 15:46:02,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:46:02,136 INFO L495 AbstractCegarLoop]: Abstraction has 29955 states and 44940 transitions. [2022-11-23 15:46:02,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-23 15:46:02,136 INFO L276 IsEmpty]: Start isEmpty. Operand 29955 states and 44940 transitions. [2022-11-23 15:46:02,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2022-11-23 15:46:02,262 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:46:02,263 INFO L195 NwaCegarLoop]: trace histogram [32, 25, 25, 25, 25, 25, 25, 9, 9, 3, 3, 3, 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] [2022-11-23 15:46:02,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:46:02,263 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:46:02,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:46:02,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1317952604, now seen corresponding path program 1 times [2022-11-23 15:46:02,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:46:02,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947083180] [2022-11-23 15:46:02,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:46:02,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:46:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:46:04,204 INFO L134 CoverageAnalysis]: Checked inductivity of 2921 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2906 trivial. 0 not checked. [2022-11-23 15:46:04,205 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:46:04,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947083180] [2022-11-23 15:46:04,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947083180] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:46:04,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:46:04,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:46:04,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861884739] [2022-11-23 15:46:04,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:46:04,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:46:04,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:46:04,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:46:04,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:46:04,209 INFO L87 Difference]: Start difference. First operand 29955 states and 44940 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-23 15:46:10,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:46:18,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:46:21,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:46:24,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:46:30,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:46:32,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:46:33,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:46:33,516 INFO L93 Difference]: Finished difference Result 65604 states and 98440 transitions. [2022-11-23 15:46:33,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:46:33,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 457 [2022-11-23 15:46:33,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:46:33,902 INFO L225 Difference]: With dead ends: 65604 [2022-11-23 15:46:33,903 INFO L226 Difference]: Without dead ends: 41350 [2022-11-23 15:46:34,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:46:34,059 INFO L413 NwaCegarLoop]: 17120 mSDtfsCounter, 8526 mSDsluCounter, 9215 mSDsCounter, 0 mSdLazyCounter, 2330 mSolverCounterSat, 15 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8527 SdHoareTripleChecker+Valid, 26335 SdHoareTripleChecker+Invalid, 2350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2330 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:46:34,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8527 Valid, 26335 Invalid, 2350 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 2330 Invalid, 5 Unknown, 0 Unchecked, 27.7s Time] [2022-11-23 15:46:34,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41350 states. [2022-11-23 15:46:36,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41350 to 41340. [2022-11-23 15:46:37,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41340 states, 26421 states have (on average 1.332008629499262) internal successors, (35193), 26985 states have internal predecessors, (35193), 13408 states have call successors, (13408), 1513 states have call predecessors, (13408), 1510 states have return successors, (13411), 13337 states have call predecessors, (13411), 13405 states have call successors, (13411) [2022-11-23 15:46:37,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41340 states to 41340 states and 62012 transitions. [2022-11-23 15:46:37,733 INFO L78 Accepts]: Start accepts. Automaton has 41340 states and 62012 transitions. Word has length 457 [2022-11-23 15:46:37,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:46:37,736 INFO L495 AbstractCegarLoop]: Abstraction has 41340 states and 62012 transitions. [2022-11-23 15:46:37,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-23 15:46:37,736 INFO L276 IsEmpty]: Start isEmpty. Operand 41340 states and 62012 transitions. [2022-11-23 15:46:37,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2022-11-23 15:46:37,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:46:37,879 INFO L195 NwaCegarLoop]: trace histogram [34, 25, 25, 25, 25, 25, 25, 13, 13, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-23 15:46:37,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:46:37,880 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:46:37,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:46:37,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1728366214, now seen corresponding path program 1 times [2022-11-23 15:46:37,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:46:37,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090621875] [2022-11-23 15:46:37,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:46:37,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:46:38,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:46:40,983 INFO L134 CoverageAnalysis]: Checked inductivity of 3217 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3217 trivial. 0 not checked. [2022-11-23 15:46:40,984 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:46:40,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090621875] [2022-11-23 15:46:40,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090621875] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:46:40,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:46:40,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:46:40,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504739833] [2022-11-23 15:46:40,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:46:40,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:46:40,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:46:40,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:46:40,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:46:40,987 INFO L87 Difference]: Start difference. First operand 41340 states and 62012 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2022-11-23 15:46:52,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:46:54,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:46:59,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:47:02,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:47:08,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:47:13,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:47:14,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:47:14,189 INFO L93 Difference]: Finished difference Result 59334 states and 89019 transitions. [2022-11-23 15:47:14,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:47:14,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) Word has length 519 [2022-11-23 15:47:14,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:47:14,622 INFO L225 Difference]: With dead ends: 59334 [2022-11-23 15:47:14,622 INFO L226 Difference]: Without dead ends: 59304 [2022-11-23 15:47:14,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:47:14,656 INFO L413 NwaCegarLoop]: 11409 mSDtfsCounter, 9813 mSDsluCounter, 20601 mSDsCounter, 0 mSdLazyCounter, 2440 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9814 SdHoareTripleChecker+Valid, 32010 SdHoareTripleChecker+Invalid, 2444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2440 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:47:14,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9814 Valid, 32010 Invalid, 2444 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2440 Invalid, 4 Unknown, 0 Unchecked, 31.4s Time] [2022-11-23 15:47:14,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59304 states. [2022-11-23 15:47:18,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59304 to 59301. [2022-11-23 15:47:18,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59301 states, 37921 states have (on average 1.332533424751457) internal successors, (50531), 38727 states have internal predecessors, (50531), 19212 states have call successors, (19212), 2170 states have call predecessors, (19212), 2167 states have return successors, (19218), 19114 states have call predecessors, (19218), 19209 states have call successors, (19218) [2022-11-23 15:47:19,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59301 states to 59301 states and 88961 transitions. [2022-11-23 15:47:19,090 INFO L78 Accepts]: Start accepts. Automaton has 59301 states and 88961 transitions. Word has length 519 [2022-11-23 15:47:19,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:47:19,093 INFO L495 AbstractCegarLoop]: Abstraction has 59301 states and 88961 transitions. [2022-11-23 15:47:19,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2022-11-23 15:47:19,093 INFO L276 IsEmpty]: Start isEmpty. Operand 59301 states and 88961 transitions. [2022-11-23 15:47:19,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 899 [2022-11-23 15:47:19,855 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:47:19,856 INFO L195 NwaCegarLoop]: trace histogram [34, 25, 25, 25, 25, 25, 25, 15, 13, 13, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:47:19,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:47:19,857 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:47:19,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:47:19,857 INFO L85 PathProgramCache]: Analyzing trace with hash 555465264, now seen corresponding path program 1 times [2022-11-23 15:47:19,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:47:19,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240535233] [2022-11-23 15:47:19,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:47:19,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:47:20,813 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:47:20,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1979905950] [2022-11-23 15:47:20,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:47:20,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:47:20,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f587e9a-0396-4971-bd8b-973005889903/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:47:20,819 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f587e9a-0396-4971-bd8b-973005889903/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:47:20,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f587e9a-0396-4971-bd8b-973005889903/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:47:27,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:47:28,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 23873 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 15:47:28,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:47:28,342 INFO L134 CoverageAnalysis]: Checked inductivity of 3535 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 3211 trivial. 0 not checked. [2022-11-23 15:47:28,343 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:47:28,345 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:47:28,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240535233] [2022-11-23 15:47:28,345 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:47:28,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979905950] [2022-11-23 15:47:28,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979905950] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:47:28,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:47:28,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:47:28,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317995925] [2022-11-23 15:47:28,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:47:28,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:47:28,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:47:28,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:47:28,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:47:28,350 INFO L87 Difference]: Start difference. First operand 59301 states and 88961 transitions. Second operand has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 3 states have call successors, (129), 2 states have call predecessors, (129), 2 states have return successors, (128), 3 states have call predecessors, (128), 3 states have call successors, (128) [2022-11-23 15:47:39,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:47:42,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:47:44,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:47:48,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:47:50,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:47:56,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:47:56,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:47:56,858 INFO L93 Difference]: Finished difference Result 103230 states and 155606 transitions. [2022-11-23 15:47:56,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:47:56,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 3 states have call successors, (129), 2 states have call predecessors, (129), 2 states have return successors, (128), 3 states have call predecessors, (128), 3 states have call successors, (128) Word has length 898 [2022-11-23 15:47:56,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:47:57,210 INFO L225 Difference]: With dead ends: 103230 [2022-11-23 15:47:57,210 INFO L226 Difference]: Without dead ends: 67215 [2022-11-23 15:47:57,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 897 GetRequests, 896 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:47:57,399 INFO L413 NwaCegarLoop]: 11284 mSDtfsCounter, 1229 mSDsluCounter, 9774 mSDsCounter, 0 mSdLazyCounter, 1868 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1746 SdHoareTripleChecker+Valid, 21058 SdHoareTripleChecker+Invalid, 1875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1868 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:47:57,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1746 Valid, 21058 Invalid, 1875 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1868 Invalid, 6 Unknown, 0 Unchecked, 26.0s Time] [2022-11-23 15:47:57,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67215 states. [2022-11-23 15:48:01,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67215 to 59311. [2022-11-23 15:48:02,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59311 states, 37929 states have (on average 1.3325160167681722) internal successors, (50541), 38735 states have internal predecessors, (50541), 19214 states have call successors, (19214), 2170 states have call predecessors, (19214), 2167 states have return successors, (19220), 19116 states have call predecessors, (19220), 19211 states have call successors, (19220) [2022-11-23 15:48:02,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59311 states to 59311 states and 88975 transitions. [2022-11-23 15:48:02,964 INFO L78 Accepts]: Start accepts. Automaton has 59311 states and 88975 transitions. Word has length 898 [2022-11-23 15:48:02,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:48:02,966 INFO L495 AbstractCegarLoop]: Abstraction has 59311 states and 88975 transitions. [2022-11-23 15:48:02,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 3 states have call successors, (129), 2 states have call predecessors, (129), 2 states have return successors, (128), 3 states have call predecessors, (128), 3 states have call successors, (128) [2022-11-23 15:48:02,967 INFO L276 IsEmpty]: Start isEmpty. Operand 59311 states and 88975 transitions. [2022-11-23 15:48:03,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 943 [2022-11-23 15:48:03,284 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:48:03,285 INFO L195 NwaCegarLoop]: trace histogram [34, 25, 25, 25, 25, 25, 25, 18, 13, 13, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:48:03,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f587e9a-0396-4971-bd8b-973005889903/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:48:03,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f587e9a-0396-4971-bd8b-973005889903/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:48:03,511 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:48:03,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:48:03,512 INFO L85 PathProgramCache]: Analyzing trace with hash -342980387, now seen corresponding path program 1 times [2022-11-23 15:48:03,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:48:03,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144277119] [2022-11-23 15:48:03,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:48:03,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:48:04,510 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:48:04,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [851266674] [2022-11-23 15:48:04,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:48:04,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:48:04,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f587e9a-0396-4971-bd8b-973005889903/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:48:04,516 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f587e9a-0396-4971-bd8b-973005889903/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:48:04,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f587e9a-0396-4971-bd8b-973005889903/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 15:48:12,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:48:12,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 24349 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:48:12,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:48:12,504 INFO L134 CoverageAnalysis]: Checked inductivity of 3669 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 3421 trivial. 0 not checked. [2022-11-23 15:48:12,504 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:48:12,505 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:48:12,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144277119] [2022-11-23 15:48:12,505 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:48:12,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851266674] [2022-11-23 15:48:12,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851266674] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:48:12,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:48:12,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:48:12,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277106092] [2022-11-23 15:48:12,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:48:12,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:48:12,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:48:12,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:48:12,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:48:12,509 INFO L87 Difference]: Start difference. First operand 59311 states and 88975 transitions. Second operand has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 2 states have call successors, (129), 2 states have call predecessors, (129), 2 states have return successors, (128), 2 states have call predecessors, (128), 2 states have call successors, (128) [2022-11-23 15:48:15,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:48:27,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:48:31,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:48:40,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:48:43,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:48:44,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:48:46,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:48:48,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:48:51,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:48:54,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:48:54,587 INFO L93 Difference]: Finished difference Result 122909 states and 186933 transitions. [2022-11-23 15:48:54,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:48:54,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 2 states have call successors, (129), 2 states have call predecessors, (129), 2 states have return successors, (128), 2 states have call predecessors, (128), 2 states have call successors, (128) Word has length 942 [2022-11-23 15:48:54,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:48:55,169 INFO L225 Difference]: With dead ends: 122909 [2022-11-23 15:48:55,170 INFO L226 Difference]: Without dead ends: 86884 [2022-11-23 15:48:55,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 943 GetRequests, 940 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:48:55,333 INFO L413 NwaCegarLoop]: 13899 mSDtfsCounter, 3853 mSDsluCounter, 23371 mSDsCounter, 0 mSdLazyCounter, 3400 mSolverCounterSat, 1017 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4934 SdHoareTripleChecker+Valid, 37270 SdHoareTripleChecker+Invalid, 4422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1017 IncrementalHoareTripleChecker+Valid, 3400 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:48:55,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4934 Valid, 37270 Invalid, 4422 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1017 Valid, 3400 Invalid, 5 Unknown, 0 Unchecked, 38.1s Time] [2022-11-23 15:48:55,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86884 states.