./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--renesas--sh_eth.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--renesas--sh_eth.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5ba89c3eceb6ce3b33f7045e58fd9531469c7ed109a8240b2f15aad930b1478d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:58:57,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:58:57,286 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:58:57,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:58:57,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:58:57,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:58:57,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:58:57,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:58:57,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:58:57,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:58:57,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:58:57,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:58:57,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:58:57,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:58:57,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:58:57,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:58:57,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:58:57,351 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:58:57,353 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:58:57,355 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:58:57,360 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:58:57,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:58:57,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:58:57,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:58:57,370 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:58:57,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:58:57,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:58:57,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:58:57,378 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:58:57,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:58:57,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:58:57,380 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:58:57,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:58:57,384 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:58:57,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:58:57,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:58:57,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:58:57,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:58:57,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:58:57,390 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:58:57,391 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:58:57,391 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:58:57,436 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:58:57,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:58:57,437 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:58:57,438 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:58:57,439 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:58:57,439 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:58:57,439 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:58:57,439 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:58:57,439 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:58:57,440 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:58:57,441 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:58:57,441 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:58:57,441 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:58:57,441 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:58:57,442 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:58:57,442 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:58:57,442 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:58:57,442 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:58:57,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:58:57,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:58:57,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:58:57,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:58:57,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:58:57,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:58:57,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:58:57,447 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:58:57,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:58:57,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:58:57,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:58:57,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:58:57,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:58:57,448 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:58:57,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:58:57,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:58:57,449 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:58:57,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:58:57,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:58:57,449 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:58:57,450 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_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ba89c3eceb6ce3b33f7045e58fd9531469c7ed109a8240b2f15aad930b1478d [2022-11-19 07:58:57,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:58:57,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:58:57,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:58:57,749 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:58:57,750 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:58:57,751 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--renesas--sh_eth.ko-entry_point.cil.out.i [2022-11-19 07:58:57,831 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS/data/2700a05f0/515f7e14608a4a2e8dbd3ea4ea290d19/FLAGf1d4cc4c0 [2022-11-19 07:58:58,865 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:58:58,866 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--renesas--sh_eth.ko-entry_point.cil.out.i [2022-11-19 07:58:58,920 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS/data/2700a05f0/515f7e14608a4a2e8dbd3ea4ea290d19/FLAGf1d4cc4c0 [2022-11-19 07:58:59,290 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS/data/2700a05f0/515f7e14608a4a2e8dbd3ea4ea290d19 [2022-11-19 07:58:59,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:58:59,294 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:58:59,295 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:58:59,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:58:59,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:58:59,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:59" (1/1) ... [2022-11-19 07:58:59,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b3ddc15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:59, skipping insertion in model container [2022-11-19 07:58:59,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:59" (1/1) ... [2022-11-19 07:58:59,312 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:58:59,454 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:59:00,743 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--renesas--sh_eth.ko-entry_point.cil.out.i[170192,170205] [2022-11-19 07:59:02,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:59:02,154 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:59:02,345 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--renesas--sh_eth.ko-entry_point.cil.out.i[170192,170205] [2022-11-19 07:59:02,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:59:02,908 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:59:02,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:02 WrapperNode [2022-11-19 07:59:02,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:59:02,911 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:59:02,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:59:02,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:59:02,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:02" (1/1) ... [2022-11-19 07:59:03,068 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:02" (1/1) ... [2022-11-19 07:59:03,319 INFO L138 Inliner]: procedures = 347, calls = 3101, calls flagged for inlining = 175, calls inlined = 164, statements flattened = 6577 [2022-11-19 07:59:03,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:59:03,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:59:03,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:59:03,322 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:59:03,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:02" (1/1) ... [2022-11-19 07:59:03,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:02" (1/1) ... [2022-11-19 07:59:03,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:02" (1/1) ... [2022-11-19 07:59:03,399 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:02" (1/1) ... [2022-11-19 07:59:03,614 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:02" (1/1) ... [2022-11-19 07:59:03,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:02" (1/1) ... [2022-11-19 07:59:03,706 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:02" (1/1) ... [2022-11-19 07:59:03,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:02" (1/1) ... [2022-11-19 07:59:03,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:59:03,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:59:03,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:59:03,865 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:59:03,866 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:02" (1/1) ... [2022-11-19 07:59:03,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:59:03,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:59:03,904 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:59:03,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:59:03,953 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_do_ioctl [2022-11-19 07:59:03,953 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_do_ioctl [2022-11-19 07:59:03,953 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_disable_cam_entry_post [2022-11-19 07:59:03,953 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_disable_cam_entry_post [2022-11-19 07:59:03,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:59:03,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:59:03,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:59:03,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:59:03,954 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_put [2022-11-19 07:59:03,954 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_put [2022-11-19 07:59:03,954 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_write [2022-11-19 07:59:03,955 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_write [2022-11-19 07:59:03,955 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-19 07:59:03,955 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-19 07:59:03,955 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_select_mii [2022-11-19 07:59:03,955 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_select_mii [2022-11-19 07:59:03,955 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_edmac [2022-11-19 07:59:03,956 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_edmac [2022-11-19 07:59:03,956 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_read [2022-11-19 07:59:03,956 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_read [2022-11-19 07:59:03,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:59:03,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:59:03,956 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_write [2022-11-19 07:59:03,957 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_write [2022-11-19 07:59:03,957 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-19 07:59:03,957 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2022-11-19 07:59:03,957 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kmalloc [2022-11-19 07:59:03,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-11-19 07:59:03,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-11-19 07:59:03,958 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_disable_cam_entry_table [2022-11-19 07:59:03,958 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_disable_cam_entry_table [2022-11-19 07:59:03,958 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-19 07:59:03,958 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-19 07:59:03,958 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_vtag_index [2022-11-19 07:59:03,958 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_vtag_index [2022-11-19 07:59:03,959 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_edtrr_trns [2022-11-19 07:59:03,959 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_edtrr_trns [2022-11-19 07:59:03,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-19 07:59:03,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-19 07:59:03,960 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_giga [2022-11-19 07:59:03,960 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_giga [2022-11-19 07:59:03,960 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2022-11-19 07:59:03,960 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2022-11-19 07:59:03,960 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 07:59:03,960 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 07:59:03,961 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-19 07:59:03,961 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-19 07:59:03,961 INFO L130 BoogieDeclarations]: Found specification of procedure devm_ioremap_resource [2022-11-19 07:59:03,962 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_ioremap_resource [2022-11-19 07:59:03,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:59:03,963 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:59:03,963 INFO L130 BoogieDeclarations]: Found specification of procedure bb_clr [2022-11-19 07:59:03,963 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_clr [2022-11-19 07:59:03,964 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 07:59:03,964 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 07:59:03,964 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_get_sync [2022-11-19 07:59:03,964 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_get_sync [2022-11-19 07:59:03,964 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_duplex [2022-11-19 07:59:03,964 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_duplex [2022-11-19 07:59:03,965 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-19 07:59:03,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-19 07:59:03,966 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-19 07:59:03,966 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-19 07:59:03,966 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_get_post_reg_offset [2022-11-19 07:59:03,966 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_get_post_reg_offset [2022-11-19 07:59:03,966 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_chip_reset_r8a7740 [2022-11-19 07:59:03,967 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_chip_reset_r8a7740 [2022-11-19 07:59:03,967 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 07:59:03,967 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 07:59:03,967 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_chip_reset_giga [2022-11-19 07:59:03,967 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_chip_reset_giga [2022-11-19 07:59:03,968 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_free_dma_buffer [2022-11-19 07:59:03,968 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_free_dma_buffer [2022-11-19 07:59:03,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:59:03,969 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_busy [2022-11-19 07:59:03,969 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_busy [2022-11-19 07:59:03,969 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_r8a777x [2022-11-19 07:59:03,969 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_r8a777x [2022-11-19 07:59:03,969 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-19 07:59:03,970 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-19 07:59:03,970 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2022-11-19 07:59:03,970 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2022-11-19 07:59:03,970 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-19 07:59:03,971 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-19 07:59:03,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:59:03,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-11-19 07:59:03,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-11-19 07:59:03,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb_12 [2022-11-19 07:59:03,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb_12 [2022-11-19 07:59:03,973 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-19 07:59:03,973 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-19 07:59:03,973 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-19 07:59:03,974 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-19 07:59:03,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-11-19 07:59:03,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 07:59:03,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 07:59:03,975 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-19 07:59:03,975 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-19 07:59:03,975 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tx_timeout [2022-11-19 07:59:03,975 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tx_timeout [2022-11-19 07:59:03,975 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2022-11-19 07:59:03,975 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2022-11-19 07:59:03,975 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_runtime_nop [2022-11-19 07:59:03,976 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_runtime_nop [2022-11-19 07:59:03,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:59:03,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:59:03,977 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_ring_free [2022-11-19 07:59:03,977 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_ring_free [2022-11-19 07:59:03,977 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-19 07:59:03,978 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-19 07:59:03,978 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_open [2022-11-19 07:59:03,981 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_open [2022-11-19 07:59:03,982 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-11-19 07:59:03,982 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-11-19 07:59:03,982 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 07:59:03,983 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 07:59:03,984 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_multicast_list [2022-11-19 07:59:03,986 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_multicast_list [2022-11-19 07:59:03,986 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 07:59:03,986 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 07:59:03,992 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 07:59:03,992 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 07:59:03,992 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_chip_reset [2022-11-19 07:59:03,992 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_chip_reset [2022-11-19 07:59:03,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 07:59:03,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-19 07:59:03,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-19 07:59:03,993 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_put_sync [2022-11-19 07:59:03,993 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_put_sync [2022-11-19 07:59:03,993 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 07:59:03,993 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 07:59:03,994 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_read_entry [2022-11-19 07:59:03,994 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_read_entry [2022-11-19 07:59:03,994 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_txfree [2022-11-19 07:59:03,994 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_txfree [2022-11-19 07:59:03,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:59:03,994 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_start_xmit [2022-11-19 07:59:03,994 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_start_xmit [2022-11-19 07:59:03,995 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2022-11-19 07:59:03,995 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2022-11-19 07:59:03,995 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_rcv_snd_disable [2022-11-19 07:59:03,995 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_rcv_snd_disable [2022-11-19 07:59:03,995 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-19 07:59:03,995 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-19 07:59:03,995 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-19 07:59:03,996 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-19 07:59:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:59:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 07:59:03,996 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 07:59:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-19 07:59:03,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-19 07:59:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_close [2022-11-19 07:59:03,997 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_close [2022-11-19 07:59:03,997 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_read [2022-11-19 07:59:03,997 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_read [2022-11-19 07:59:03,997 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_soft_swap [2022-11-19 07:59:03,997 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_soft_swap [2022-11-19 07:59:03,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 07:59:03,997 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 07:59:03,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-11-19 07:59:03,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-11-19 07:59:03,998 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_is_rz_fast_ether [2022-11-19 07:59:03,998 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_is_rz_fast_ether [2022-11-19 07:59:03,998 INFO L130 BoogieDeclarations]: Found specification of procedure bb_set [2022-11-19 07:59:03,998 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_set [2022-11-19 07:59:03,998 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_find_entry [2022-11-19 07:59:03,999 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_find_entry [2022-11-19 07:59:03,999 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-19 07:59:03,999 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-19 07:59:03,999 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 07:59:03,999 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 07:59:03,999 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_dev_init [2022-11-19 07:59:03,999 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_dev_init [2022-11-19 07:59:04,000 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_stats [2022-11-19 07:59:04,000 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_stats [2022-11-19 07:59:04,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:59:04,000 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_vlan_rx_kill_vid [2022-11-19 07:59:04,001 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_vlan_rx_kill_vid [2022-11-19 07:59:04,001 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_sh7724 [2022-11-19 07:59:04,001 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_sh7724 [2022-11-19 07:59:04,001 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-11-19 07:59:04,001 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-11-19 07:59:04,001 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_disable [2022-11-19 07:59:04,002 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_disable [2022-11-19 07:59:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_adjust_link [2022-11-19 07:59:04,002 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_adjust_link [2022-11-19 07:59:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:59:04,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:59:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2022-11-19 07:59:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_vlan_rx_add_vid [2022-11-19 07:59:04,003 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_vlan_rx_add_vid [2022-11-19 07:59:04,003 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_ring_init [2022-11-19 07:59:04,003 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_ring_init [2022-11-19 07:59:04,003 INFO L130 BoogieDeclarations]: Found specification of procedure __pm_runtime_idle [2022-11-19 07:59:04,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __pm_runtime_idle [2022-11-19 07:59:04,003 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2022-11-19 07:59:04,003 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2022-11-19 07:59:04,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:59:04,004 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_purge_mcast [2022-11-19 07:59:04,004 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_purge_mcast [2022-11-19 07:59:04,004 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-19 07:59:04,004 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-19 07:59:04,004 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-19 07:59:04,004 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-19 07:59:04,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:59:04,005 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2022-11-19 07:59:04,005 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2022-11-19 07:59:04,005 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 07:59:04,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 07:59:04,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:59:04,006 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 07:59:04,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-19 07:59:04,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-19 07:59:04,006 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:59:04,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:59:04,006 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-19 07:59:04,006 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-19 07:59:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_register [2022-11-19 07:59:04,007 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_register [2022-11-19 07:59:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_is_gether [2022-11-19 07:59:04,007 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_is_gether [2022-11-19 07:59:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-19 07:59:04,007 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-19 07:59:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_sh7757 [2022-11-19 07:59:04,008 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_sh7757 [2022-11-19 07:59:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_receive_align [2022-11-19 07:59:04,008 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_receive_align [2022-11-19 07:59:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_rcv_snd_enable [2022-11-19 07:59:04,008 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_rcv_snd_enable [2022-11-19 07:59:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_get_offset [2022-11-19 07:59:04,008 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_get_offset [2022-11-19 07:59:04,009 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_gether [2022-11-19 07:59:04,009 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_gether [2022-11-19 07:59:04,009 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-11-19 07:59:04,009 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-11-19 07:59:04,009 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 07:59:04,009 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 07:59:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 07:59:04,010 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 07:59:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-19 07:59:04,010 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-19 07:59:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-19 07:59:04,011 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-19 07:59:04,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:59:04,011 INFO L130 BoogieDeclarations]: Found specification of procedure sh_mdio_release [2022-11-19 07:59:04,011 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_mdio_release [2022-11-19 07:59:04,011 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_write_entry [2022-11-19 07:59:04,011 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_write_entry [2022-11-19 07:59:04,011 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_get_post_bit [2022-11-19 07:59:04,011 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_get_post_bit [2022-11-19 07:59:04,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:59:04,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:59:04,011 INFO L130 BoogieDeclarations]: Found specification of procedure free_mdio_bitbang [2022-11-19 07:59:04,012 INFO L138 BoogieDeclarations]: Found implementation of procedure free_mdio_bitbang [2022-11-19 07:59:04,012 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-19 07:59:04,012 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-19 07:59:04,946 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:59:04,953 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:59:05,488 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 08:00:06,701 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:00:09,042 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:00:09,042 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-19 08:00:09,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:09 BoogieIcfgContainer [2022-11-19 08:00:09,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:00:09,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:00:09,051 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:00:09,054 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:00:09,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:58:59" (1/3) ... [2022-11-19 08:00:09,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e5a610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:09, skipping insertion in model container [2022-11-19 08:00:09,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:02" (2/3) ... [2022-11-19 08:00:09,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e5a610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:09, skipping insertion in model container [2022-11-19 08:00:09,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:09" (3/3) ... [2022-11-19 08:00:09,057 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--renesas--sh_eth.ko-entry_point.cil.out.i [2022-11-19 08:00:09,078 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:00:09,078 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:00:09,172 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:00:09,179 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;@6a22333b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:00:09,179 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:00:09,188 INFO L276 IsEmpty]: Start isEmpty. Operand has 1914 states, 1177 states have (on average 1.3738317757009346) internal successors, (1617), 1255 states have internal predecessors, (1617), 624 states have call successors, (624), 118 states have call predecessors, (624), 117 states have return successors, (605), 579 states have call predecessors, (605), 605 states have call successors, (605) [2022-11-19 08:00:09,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-19 08:00:09,204 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:09,205 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2022-11-19 08:00:09,205 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:00:09,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:09,211 INFO L85 PathProgramCache]: Analyzing trace with hash 109709738, now seen corresponding path program 1 times [2022-11-19 08:00:09,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:00:09,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668741060] [2022-11-19 08:00:09,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:09,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:00:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:10,358 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-19 08:00:10,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:00:10,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668741060] [2022-11-19 08:00:10,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668741060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:10,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:00:10,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:00:10,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327901617] [2022-11-19 08:00:10,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:10,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:00:10,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:00:10,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:00:10,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:10,413 INFO L87 Difference]: Start difference. First operand has 1914 states, 1177 states have (on average 1.3738317757009346) internal successors, (1617), 1255 states have internal predecessors, (1617), 624 states have call successors, (624), 118 states have call predecessors, (624), 117 states have return successors, (605), 579 states have call predecessors, (605), 605 states have call successors, (605) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-19 08:00:12,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:15,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:17,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:00:17,495 INFO L93 Difference]: Finished difference Result 5515 states and 8272 transitions. [2022-11-19 08:00:17,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:00:17,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 78 [2022-11-19 08:00:17,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:00:17,543 INFO L225 Difference]: With dead ends: 5515 [2022-11-19 08:00:17,543 INFO L226 Difference]: Without dead ends: 3574 [2022-11-19 08:00:17,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:17,561 INFO L413 NwaCegarLoop]: 3127 mSDtfsCounter, 2539 mSDsluCounter, 2585 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2539 SdHoareTripleChecker+Valid, 5712 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:00:17,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2539 Valid, 5712 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 427 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-11-19 08:00:17,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3574 states. [2022-11-19 08:00:17,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3574 to 3574. [2022-11-19 08:00:17,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3574 states, 2221 states have (on average 1.3556956325979288) internal successors, (3011), 2321 states have internal predecessors, (3011), 1122 states have call successors, (1122), 231 states have call predecessors, (1122), 230 states have return successors, (1121), 1071 states have call predecessors, (1121), 1121 states have call successors, (1121) [2022-11-19 08:00:17,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3574 states to 3574 states and 5254 transitions. [2022-11-19 08:00:17,918 INFO L78 Accepts]: Start accepts. Automaton has 3574 states and 5254 transitions. Word has length 78 [2022-11-19 08:00:17,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:00:17,919 INFO L495 AbstractCegarLoop]: Abstraction has 3574 states and 5254 transitions. [2022-11-19 08:00:17,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-19 08:00:17,920 INFO L276 IsEmpty]: Start isEmpty. Operand 3574 states and 5254 transitions. [2022-11-19 08:00:17,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-19 08:00:17,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:17,935 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2022-11-19 08:00:17,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:00:17,935 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:00:17,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:17,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1670056064, now seen corresponding path program 1 times [2022-11-19 08:00:17,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:00:17,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344333239] [2022-11-19 08:00:17,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:17,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:00:18,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:19,185 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-11-19 08:00:19,186 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:00:19,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344333239] [2022-11-19 08:00:19,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344333239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:19,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:00:19,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:00:19,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263194141] [2022-11-19 08:00:19,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:19,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:00:19,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:00:19,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:00:19,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:00:19,192 INFO L87 Difference]: Start difference. First operand 3574 states and 5254 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 08:00:21,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:25,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:27,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:00:27,170 INFO L93 Difference]: Finished difference Result 7020 states and 10374 transitions. [2022-11-19 08:00:27,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:00:27,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 87 [2022-11-19 08:00:27,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:00:27,230 INFO L225 Difference]: With dead ends: 7020 [2022-11-19 08:00:27,230 INFO L226 Difference]: Without dead ends: 7015 [2022-11-19 08:00:27,238 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 [2022-11-19 08:00:27,239 INFO L413 NwaCegarLoop]: 3344 mSDtfsCounter, 2534 mSDsluCounter, 5915 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2534 SdHoareTripleChecker+Valid, 9259 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:00:27,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2534 Valid, 9259 Invalid, 678 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 676 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-11-19 08:00:27,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7015 states. [2022-11-19 08:00:27,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7015 to 7007. [2022-11-19 08:00:27,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7007 states, 4365 states have (on average 1.3567010309278351) internal successors, (5922), 4563 states have internal predecessors, (5922), 2183 states have call successors, (2183), 459 states have call predecessors, (2183), 458 states have return successors, (2252), 2084 states have call predecessors, (2252), 2182 states have call successors, (2252) [2022-11-19 08:00:27,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7007 states to 7007 states and 10357 transitions. [2022-11-19 08:00:27,819 INFO L78 Accepts]: Start accepts. Automaton has 7007 states and 10357 transitions. Word has length 87 [2022-11-19 08:00:27,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:00:27,820 INFO L495 AbstractCegarLoop]: Abstraction has 7007 states and 10357 transitions. [2022-11-19 08:00:27,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 08:00:27,820 INFO L276 IsEmpty]: Start isEmpty. Operand 7007 states and 10357 transitions. [2022-11-19 08:00:27,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-19 08:00:27,839 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:27,840 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:00:27,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:00:27,840 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:00:27,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:27,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1059870113, now seen corresponding path program 1 times [2022-11-19 08:00:27,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:00:27,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876924099] [2022-11-19 08:00:27,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:27,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:00:28,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:28,516 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2022-11-19 08:00:28,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:00:28,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876924099] [2022-11-19 08:00:28,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876924099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:28,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:00:28,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:00:28,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304198885] [2022-11-19 08:00:28,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:28,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:00:28,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:00:28,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:00:28,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:28,522 INFO L87 Difference]: Start difference. First operand 7007 states and 10357 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-19 08:00:30,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:34,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:35,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:00:35,708 INFO L93 Difference]: Finished difference Result 20520 states and 30353 transitions. [2022-11-19 08:00:35,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:00:35,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 185 [2022-11-19 08:00:35,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:00:35,817 INFO L225 Difference]: With dead ends: 20520 [2022-11-19 08:00:35,817 INFO L226 Difference]: Without dead ends: 13536 [2022-11-19 08:00:35,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:35,869 INFO L413 NwaCegarLoop]: 3196 mSDtfsCounter, 2401 mSDsluCounter, 2542 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2401 SdHoareTripleChecker+Valid, 5738 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:00:35,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2401 Valid, 5738 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 440 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-11-19 08:00:35,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13536 states. [2022-11-19 08:00:36,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13536 to 13529. [2022-11-19 08:00:36,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13529 states, 8455 states have (on average 1.3600236546422235) internal successors, (11499), 8849 states have internal predecessors, (11499), 4191 states have call successors, (4191), 883 states have call predecessors, (4191), 882 states have return successors, (4330), 3996 states have call predecessors, (4330), 4190 states have call successors, (4330) [2022-11-19 08:00:36,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13529 states to 13529 states and 20020 transitions. [2022-11-19 08:00:36,766 INFO L78 Accepts]: Start accepts. Automaton has 13529 states and 20020 transitions. Word has length 185 [2022-11-19 08:00:36,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:00:36,767 INFO L495 AbstractCegarLoop]: Abstraction has 13529 states and 20020 transitions. [2022-11-19 08:00:36,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-19 08:00:36,768 INFO L276 IsEmpty]: Start isEmpty. Operand 13529 states and 20020 transitions. [2022-11-19 08:00:36,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-19 08:00:36,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:36,798 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 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] [2022-11-19 08:00:36,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:00:36,799 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:00:36,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:36,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1532366446, now seen corresponding path program 1 times [2022-11-19 08:00:36,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:00:36,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225234309] [2022-11-19 08:00:36,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:36,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:00:37,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:37,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:00:37,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225234309] [2022-11-19 08:00:37,157 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-19 08:00:37,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633298354] [2022-11-19 08:00:37,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:37,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:00:37,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:00:37,162 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:00:37,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:00:39,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:39,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 5293 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:00:39,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:00:39,413 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2022-11-19 08:00:39,413 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:00:39,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633298354] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:39,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:00:39,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:00:39,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618758487] [2022-11-19 08:00:39,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:39,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:00:39,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:00:39,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:00:39,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:39,416 INFO L87 Difference]: Start difference. First operand 13529 states and 20020 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-19 08:00:41,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:44,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:46,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:00:46,505 INFO L93 Difference]: Finished difference Result 39702 states and 58657 transitions. [2022-11-19 08:00:46,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:00:46,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 189 [2022-11-19 08:00:46,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:00:46,700 INFO L225 Difference]: With dead ends: 39702 [2022-11-19 08:00:46,700 INFO L226 Difference]: Without dead ends: 26196 [2022-11-19 08:00:46,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:46,806 INFO L413 NwaCegarLoop]: 3056 mSDtfsCounter, 2369 mSDsluCounter, 2524 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2369 SdHoareTripleChecker+Valid, 5580 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:00:46,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2369 Valid, 5580 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 452 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-11-19 08:00:46,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26196 states. [2022-11-19 08:00:48,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26196 to 26189. [2022-11-19 08:00:48,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26189 states, 16431 states have (on average 1.3586513298034204) internal successors, (22324), 17211 states have internal predecessors, (22324), 8003 states have call successors, (8003), 1755 states have call predecessors, (8003), 1754 states have return successors, (8266), 7614 states have call predecessors, (8266), 8002 states have call successors, (8266) [2022-11-19 08:00:48,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26189 states to 26189 states and 38593 transitions. [2022-11-19 08:00:48,795 INFO L78 Accepts]: Start accepts. Automaton has 26189 states and 38593 transitions. Word has length 189 [2022-11-19 08:00:48,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:00:48,796 INFO L495 AbstractCegarLoop]: Abstraction has 26189 states and 38593 transitions. [2022-11-19 08:00:48,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-19 08:00:48,797 INFO L276 IsEmpty]: Start isEmpty. Operand 26189 states and 38593 transitions. [2022-11-19 08:00:48,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-11-19 08:00:48,865 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:48,865 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 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] [2022-11-19 08:00:48,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:00:49,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:00:49,083 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:00:49,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:49,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1472449078, now seen corresponding path program 1 times [2022-11-19 08:00:49,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:00:49,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303797108] [2022-11-19 08:00:49,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:49,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:00:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:49,805 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-11-19 08:00:49,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:00:49,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303797108] [2022-11-19 08:00:49,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303797108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:49,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:00:49,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:00:49,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976260668] [2022-11-19 08:00:49,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:49,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:00:49,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:00:49,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:00:49,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:49,812 INFO L87 Difference]: Start difference. First operand 26189 states and 38593 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2022-11-19 08:00:51,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:54,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:58,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:00:58,441 INFO L93 Difference]: Finished difference Result 63211 states and 92669 transitions. [2022-11-19 08:00:58,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:00:58,442 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), 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 233 [2022-11-19 08:00:58,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:00:58,736 INFO L225 Difference]: With dead ends: 63211 [2022-11-19 08:00:58,736 INFO L226 Difference]: Without dead ends: 37045 [2022-11-19 08:00:58,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:58,832 INFO L413 NwaCegarLoop]: 3146 mSDtfsCounter, 2314 mSDsluCounter, 2448 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2314 SdHoareTripleChecker+Valid, 5594 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:00:58,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2314 Valid, 5594 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 520 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-11-19 08:00:58,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37045 states. [2022-11-19 08:01:00,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37045 to 37032. [2022-11-19 08:01:00,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37032 states, 23110 states have (on average 1.3485504110774555) internal successors, (31165), 24287 states have internal predecessors, (31165), 11347 states have call successors, (11347), 2575 states have call predecessors, (11347), 2574 states have return successors, (11570), 10757 states have call predecessors, (11570), 11346 states have call successors, (11570) [2022-11-19 08:01:01,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37032 states to 37032 states and 54082 transitions. [2022-11-19 08:01:01,193 INFO L78 Accepts]: Start accepts. Automaton has 37032 states and 54082 transitions. Word has length 233 [2022-11-19 08:01:01,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:01:01,194 INFO L495 AbstractCegarLoop]: Abstraction has 37032 states and 54082 transitions. [2022-11-19 08:01:01,195 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), 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) [2022-11-19 08:01:01,195 INFO L276 IsEmpty]: Start isEmpty. Operand 37032 states and 54082 transitions. [2022-11-19 08:01:01,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-11-19 08:01:01,232 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:01:01,232 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 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] [2022-11-19 08:01:01,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:01:01,232 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:01:01,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:01:01,234 INFO L85 PathProgramCache]: Analyzing trace with hash 2013976167, now seen corresponding path program 1 times [2022-11-19 08:01:01,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:01:01,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062070732] [2022-11-19 08:01:01,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:01,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:01:01,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:02,225 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-11-19 08:01:02,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:01:02,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062070732] [2022-11-19 08:01:02,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062070732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:01:02,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:01:02,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:01:02,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602349757] [2022-11-19 08:01:02,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:01:02,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:01:02,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:01:02,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:01:02,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:01:02,228 INFO L87 Difference]: Start difference. First operand 37032 states and 54082 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2022-11-19 08:01:04,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:01:06,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:01:10,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:01:11,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:01:11,874 INFO L93 Difference]: Finished difference Result 93791 states and 136711 transitions. [2022-11-19 08:01:11,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:01:11,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 232 [2022-11-19 08:01:11,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:01:12,366 INFO L225 Difference]: With dead ends: 93791 [2022-11-19 08:01:12,366 INFO L226 Difference]: Without dead ends: 56785 [2022-11-19 08:01:12,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:01:12,526 INFO L413 NwaCegarLoop]: 3494 mSDtfsCounter, 2408 mSDsluCounter, 2485 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2408 SdHoareTripleChecker+Valid, 5979 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:01:12,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2408 Valid, 5979 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 525 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-11-19 08:01:12,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56785 states. [2022-11-19 08:01:15,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56785 to 56780. [2022-11-19 08:01:15,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56780 states, 35564 states have (on average 1.3499325160274436) internal successors, (48009), 37471 states have internal predecessors, (48009), 17241 states have call successors, (17241), 3975 states have call predecessors, (17241), 3974 states have return successors, (17388), 16273 states have call predecessors, (17388), 17240 states have call successors, (17388) [2022-11-19 08:01:16,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56780 states to 56780 states and 82638 transitions. [2022-11-19 08:01:16,093 INFO L78 Accepts]: Start accepts. Automaton has 56780 states and 82638 transitions. Word has length 232 [2022-11-19 08:01:16,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:01:16,093 INFO L495 AbstractCegarLoop]: Abstraction has 56780 states and 82638 transitions. [2022-11-19 08:01:16,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2022-11-19 08:01:16,094 INFO L276 IsEmpty]: Start isEmpty. Operand 56780 states and 82638 transitions. [2022-11-19 08:01:16,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-11-19 08:01:16,136 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:01:16,136 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:01:16,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:01:16,137 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:01:16,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:01:16,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1461545903, now seen corresponding path program 1 times [2022-11-19 08:01:16,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:01:16,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135452733] [2022-11-19 08:01:16,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:16,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:01:16,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:16,851 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2022-11-19 08:01:16,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:01:16,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135452733] [2022-11-19 08:01:16,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135452733] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:01:16,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:01:16,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:01:16,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439496682] [2022-11-19 08:01:16,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:01:16,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:01:16,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:01:16,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:01:16,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:01:16,855 INFO L87 Difference]: Start difference. First operand 56780 states and 82638 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-19 08:01:18,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:01:23,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:01:24,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:01:24,414 INFO L93 Difference]: Finished difference Result 87665 states and 127561 transitions. [2022-11-19 08:01:24,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:01:24,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 203 [2022-11-19 08:01:24,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:01:24,567 INFO L225 Difference]: With dead ends: 87665 [2022-11-19 08:01:24,568 INFO L226 Difference]: Without dead ends: 30909 [2022-11-19 08:01:24,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:01:24,757 INFO L413 NwaCegarLoop]: 2546 mSDtfsCounter, 5 mSDsluCounter, 2543 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5089 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:01:24,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 5089 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 417 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-11-19 08:01:24,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30909 states. [2022-11-19 08:01:26,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30909 to 30897. [2022-11-19 08:01:26,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30897 states, 19327 states have (on average 1.3491488591090184) internal successors, (26075), 20372 states have internal predecessors, (26075), 9387 states have call successors, (9387), 2183 states have call predecessors, (9387), 2182 states have return successors, (9475), 8853 states have call predecessors, (9475), 9386 states have call successors, (9475) [2022-11-19 08:01:26,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30897 states to 30897 states and 44937 transitions. [2022-11-19 08:01:26,586 INFO L78 Accepts]: Start accepts. Automaton has 30897 states and 44937 transitions. Word has length 203 [2022-11-19 08:01:26,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:01:26,587 INFO L495 AbstractCegarLoop]: Abstraction has 30897 states and 44937 transitions. [2022-11-19 08:01:26,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-19 08:01:26,587 INFO L276 IsEmpty]: Start isEmpty. Operand 30897 states and 44937 transitions. [2022-11-19 08:01:26,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-11-19 08:01:26,605 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:01:26,605 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 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] [2022-11-19 08:01:26,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 08:01:26,605 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:01:26,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:01:26,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1572573175, now seen corresponding path program 1 times [2022-11-19 08:01:26,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:01:26,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789972810] [2022-11-19 08:01:26,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:26,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:01:26,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:27,104 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2022-11-19 08:01:27,104 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:01:27,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789972810] [2022-11-19 08:01:27,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789972810] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:01:27,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:01:27,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:01:27,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013292621] [2022-11-19 08:01:27,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:01:27,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:01:27,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:01:27,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:01:27,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:01:27,107 INFO L87 Difference]: Start difference. First operand 30897 states and 44937 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-19 08:01:29,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:01:32,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:01:35,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:01:37,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:01:37,323 INFO L93 Difference]: Finished difference Result 85549 states and 124340 transitions. [2022-11-19 08:01:37,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:01:37,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 221 [2022-11-19 08:01:37,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:01:37,558 INFO L225 Difference]: With dead ends: 85549 [2022-11-19 08:01:37,558 INFO L226 Difference]: Without dead ends: 54678 [2022-11-19 08:01:37,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:01:37,656 INFO L413 NwaCegarLoop]: 3879 mSDtfsCounter, 2615 mSDsluCounter, 2533 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2615 SdHoareTripleChecker+Valid, 6412 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:01:37,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2615 Valid, 6412 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 527 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2022-11-19 08:01:37,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54678 states. [2022-11-19 08:01:40,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54678 to 54662. [2022-11-19 08:01:40,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54662 states, 34185 states have (on average 1.3502705865145532) internal successors, (46159), 36018 states have internal predecessors, (46159), 16568 states have call successors, (16568), 3909 states have call predecessors, (16568), 3908 states have return successors, (16677), 15635 states have call predecessors, (16677), 16567 states have call successors, (16677) [2022-11-19 08:01:40,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54662 states to 54662 states and 79404 transitions. [2022-11-19 08:01:40,578 INFO L78 Accepts]: Start accepts. Automaton has 54662 states and 79404 transitions. Word has length 221 [2022-11-19 08:01:40,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:01:40,579 INFO L495 AbstractCegarLoop]: Abstraction has 54662 states and 79404 transitions. [2022-11-19 08:01:40,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-19 08:01:40,579 INFO L276 IsEmpty]: Start isEmpty. Operand 54662 states and 79404 transitions. [2022-11-19 08:01:40,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-11-19 08:01:40,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:01:40,612 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:01:40,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 08:01:40,613 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:01:40,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:01:40,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1907337239, now seen corresponding path program 1 times [2022-11-19 08:01:40,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:01:40,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123731103] [2022-11-19 08:01:40,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:40,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:01:41,106 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:01:41,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [299888204] [2022-11-19 08:01:41,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:41,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:01:41,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:01:41,108 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:01:41,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:01:43,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:43,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 5812 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:01:43,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:01:43,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1137 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2022-11-19 08:01:43,365 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:01:43,365 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:01:43,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123731103] [2022-11-19 08:01:43,366 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:01:43,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299888204] [2022-11-19 08:01:43,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299888204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:01:43,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:01:43,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:01:43,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068305014] [2022-11-19 08:01:43,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:01:43,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:01:43,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:01:43,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:01:43,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:01:43,369 INFO L87 Difference]: Start difference. First operand 54662 states and 79404 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-19 08:01:45,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:01:50,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:01:51,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:01:51,853 INFO L93 Difference]: Finished difference Result 100456 states and 146709 transitions. [2022-11-19 08:01:51,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:01:51,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 282 [2022-11-19 08:01:51,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:01:52,166 INFO L225 Difference]: With dead ends: 100456 [2022-11-19 08:01:52,166 INFO L226 Difference]: Without dead ends: 54758 [2022-11-19 08:01:52,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:01:52,586 INFO L413 NwaCegarLoop]: 2546 mSDtfsCounter, 4 mSDsluCounter, 2540 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5086 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:01:52,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5086 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 416 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-11-19 08:01:52,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54758 states. [2022-11-19 08:01:54,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54758 to 54710. [2022-11-19 08:01:54,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54710 states, 34227 states have (on average 1.349840768983551) internal successors, (46201), 36066 states have internal predecessors, (46201), 16568 states have call successors, (16568), 3909 states have call predecessors, (16568), 3914 states have return successors, (16683), 15635 states have call predecessors, (16683), 16567 states have call successors, (16683) [2022-11-19 08:01:55,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54710 states to 54710 states and 79452 transitions. [2022-11-19 08:01:55,099 INFO L78 Accepts]: Start accepts. Automaton has 54710 states and 79452 transitions. Word has length 282 [2022-11-19 08:01:55,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:01:55,099 INFO L495 AbstractCegarLoop]: Abstraction has 54710 states and 79452 transitions. [2022-11-19 08:01:55,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-19 08:01:55,100 INFO L276 IsEmpty]: Start isEmpty. Operand 54710 states and 79452 transitions. [2022-11-19 08:01:55,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-11-19 08:01:55,133 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:01:55,133 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:01:55,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:01:55,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:01:55,351 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:01:55,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:01:55,352 INFO L85 PathProgramCache]: Analyzing trace with hash 222688589, now seen corresponding path program 1 times [2022-11-19 08:01:55,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:01:55,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559738690] [2022-11-19 08:01:55,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:55,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:01:55,861 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:01:55,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [510101783] [2022-11-19 08:01:55,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:55,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:01:55,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:01:55,866 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:01:55,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:01:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:57,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 5820 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 08:01:57,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:01:58,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1137 backedges. 558 proven. 4 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2022-11-19 08:01:58,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:01:59,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1137 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1121 trivial. 0 not checked. [2022-11-19 08:01:59,705 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:01:59,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559738690] [2022-11-19 08:01:59,705 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:01:59,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510101783] [2022-11-19 08:01:59,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510101783] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-19 08:01:59,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:01:59,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2022-11-19 08:01:59,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730253569] [2022-11-19 08:01:59,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:01:59,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:01:59,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:01:59,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:01:59,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:01:59,708 INFO L87 Difference]: Start difference. First operand 54710 states and 79452 transitions. Second operand has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 5 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (39), 5 states have call predecessors, (39), 5 states have call successors, (39) [2022-11-19 08:02:01,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:02:08,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:02:21,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:02:21,166 INFO L93 Difference]: Finished difference Result 117488 states and 172210 transitions. [2022-11-19 08:02:21,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 08:02:21,166 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 5 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (39), 5 states have call predecessors, (39), 5 states have call successors, (39) Word has length 283 [2022-11-19 08:02:21,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:02:21,451 INFO L225 Difference]: With dead ends: 117488 [2022-11-19 08:02:21,451 INFO L226 Difference]: Without dead ends: 63208 [2022-11-19 08:02:21,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 554 SyntacticMatches, 4 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-11-19 08:02:21,821 INFO L413 NwaCegarLoop]: 2792 mSDtfsCounter, 3242 mSDsluCounter, 3290 mSDsCounter, 0 mSdLazyCounter, 5306 mSolverCounterSat, 512 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3639 SdHoareTripleChecker+Valid, 6082 SdHoareTripleChecker+Invalid, 5820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 5306 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:02:21,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3639 Valid, 6082 Invalid, 5820 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [512 Valid, 5306 Invalid, 2 Unknown, 0 Unchecked, 17.8s Time] [2022-11-19 08:02:21,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63208 states. [2022-11-19 08:02:24,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63208 to 55970. [2022-11-19 08:02:24,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55970 states, 35013 states have (on average 1.3479850341301802) internal successors, (47197), 36936 states have internal predecessors, (47197), 16976 states have call successors, (16976), 3909 states have call predecessors, (16976), 3980 states have return successors, (17271), 16085 states have call predecessors, (17271), 16975 states have call successors, (17271) [2022-11-19 08:02:25,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55970 states to 55970 states and 81444 transitions. [2022-11-19 08:02:25,127 INFO L78 Accepts]: Start accepts. Automaton has 55970 states and 81444 transitions. Word has length 283 [2022-11-19 08:02:25,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:02:25,128 INFO L495 AbstractCegarLoop]: Abstraction has 55970 states and 81444 transitions. [2022-11-19 08:02:25,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 5 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (39), 5 states have call predecessors, (39), 5 states have call successors, (39) [2022-11-19 08:02:25,129 INFO L276 IsEmpty]: Start isEmpty. Operand 55970 states and 81444 transitions. [2022-11-19 08:02:25,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-11-19 08:02:25,165 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:02:25,166 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:02:25,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:02:25,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e9f9aa4-a4ba-45e2-8ad1-b9e984110755/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-19 08:02:25,394 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:02:25,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:02:25,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1048635860, now seen corresponding path program 1 times [2022-11-19 08:02:25,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:02:25,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326500479] [2022-11-19 08:02:25,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:25,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:02:25,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:02:26,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1147 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1135 trivial. 0 not checked. [2022-11-19 08:02:26,397 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:02:26,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326500479] [2022-11-19 08:02:26,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326500479] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:02:26,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:02:26,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:02:26,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002960716] [2022-11-19 08:02:26,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:02:26,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:02:26,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:02:26,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:02:26,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:02:26,402 INFO L87 Difference]: Start difference. First operand 55970 states and 81444 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-11-19 08:02:28,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:02:32,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:02:35,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:02:35,621 INFO L93 Difference]: Finished difference Result 125316 states and 185229 transitions. [2022-11-19 08:02:35,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:02:35,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 287 [2022-11-19 08:02:35,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:02:35,903 INFO L225 Difference]: With dead ends: 125316 [2022-11-19 08:02:35,903 INFO L226 Difference]: Without dead ends: 69848 [2022-11-19 08:02:36,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:02:36,057 INFO L413 NwaCegarLoop]: 3163 mSDtfsCounter, 684 mSDsluCounter, 2512 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 5675 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:02:36,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [880 Valid, 5675 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 449 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-11-19 08:02:36,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69848 states. [2022-11-19 08:02:39,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69848 to 55898. [2022-11-19 08:02:39,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55898 states, 34977 states have (on average 1.3477713926294421) internal successors, (47141), 36900 states have internal predecessors, (47141), 16954 states have call successors, (16954), 3895 states have call predecessors, (16954), 3966 states have return successors, (17249), 16063 states have call predecessors, (17249), 16953 states have call successors, (17249) [2022-11-19 08:02:39,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55898 states to 55898 states and 81344 transitions. [2022-11-19 08:02:39,399 INFO L78 Accepts]: Start accepts. Automaton has 55898 states and 81344 transitions. Word has length 287 [2022-11-19 08:02:39,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:02:39,400 INFO L495 AbstractCegarLoop]: Abstraction has 55898 states and 81344 transitions. [2022-11-19 08:02:39,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-11-19 08:02:39,401 INFO L276 IsEmpty]: Start isEmpty. Operand 55898 states and 81344 transitions. [2022-11-19 08:02:39,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-11-19 08:02:39,439 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:02:39,440 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:02:39,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 08:02:39,440 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:02:39,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:02:39,441 INFO L85 PathProgramCache]: Analyzing trace with hash 555694709, now seen corresponding path program 1 times [2022-11-19 08:02:39,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:02:39,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534081194] [2022-11-19 08:02:39,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:39,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:02:39,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:02:40,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1231 trivial. 0 not checked. [2022-11-19 08:02:40,367 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:02:40,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534081194] [2022-11-19 08:02:40,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534081194] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:02:40,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:02:40,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:02:40,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949298015] [2022-11-19 08:02:40,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:02:40,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:02:40,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:02:40,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:02:40,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:02:40,371 INFO L87 Difference]: Start difference. First operand 55898 states and 81344 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-11-19 08:02:42,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:02:47,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:02:52,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:02:52,536 INFO L93 Difference]: Finished difference Result 120694 states and 179222 transitions. [2022-11-19 08:02:52,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:02:52,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 289 [2022-11-19 08:02:52,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:02:52,842 INFO L225 Difference]: With dead ends: 120694 [2022-11-19 08:02:52,843 INFO L226 Difference]: Without dead ends: 73754 [2022-11-19 08:02:53,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:02:53,201 INFO L413 NwaCegarLoop]: 3937 mSDtfsCounter, 1578 mSDsluCounter, 6614 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 246 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1829 SdHoareTripleChecker+Valid, 10551 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:02:53,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1829 Valid, 10551 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 841 Invalid, 2 Unknown, 0 Unchecked, 8.8s Time] [2022-11-19 08:02:53,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73754 states.