./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--usbhid--usbhid.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_8fa8a5e3-1742-4f6f-9920-64759a221c60/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa8a5e3-1742-4f6f-9920-64759a221c60/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_8fa8a5e3-1742-4f6f-9920-64759a221c60/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa8a5e3-1742-4f6f-9920-64759a221c60/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--usbhid--usbhid.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa8a5e3-1742-4f6f-9920-64759a221c60/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_8fa8a5e3-1742-4f6f-9920-64759a221c60/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 ce994d1a73c37780cf760e0a26dafcaa4c1158119509e83a0962528ef5890c5e --- 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 06:36:05,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:36:05,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:36:05,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:36:05,910 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:36:05,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:36:05,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:36:05,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:36:05,928 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:36:05,931 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:36:05,933 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:36:05,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:36:05,936 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:36:05,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:36:05,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:36:05,944 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:36:05,946 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:36:05,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:36:05,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:36:05,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:36:05,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:36:05,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:36:05,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:36:05,965 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:36:05,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:36:05,978 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:36:05,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:36:05,979 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:36:05,981 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:36:05,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:36:05,983 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:36:05,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:36:05,985 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:36:05,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:36:05,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:36:05,989 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:36:05,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:36:05,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:36:05,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:36:05,992 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:36:05,993 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:36:05,994 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa8a5e3-1742-4f6f-9920-64759a221c60/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 06:36:06,026 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:36:06,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:36:06,027 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:36:06,027 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:36:06,028 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:36:06,028 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:36:06,028 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:36:06,029 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:36:06,029 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:36:06,029 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:36:06,029 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:36:06,030 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:36:06,030 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:36:06,030 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:36:06,030 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:36:06,033 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:36:06,033 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:36:06,034 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:36:06,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:36:06,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:36:06,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:36:06,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:36:06,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:36:06,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:36:06,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:36:06,037 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:36:06,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:36:06,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:36:06,038 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:36:06,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:36:06,039 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:36:06,039 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:36:06,039 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:36:06,040 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:36:06,040 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:36:06,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:36:06,041 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:36:06,042 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:36:06,042 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_8fa8a5e3-1742-4f6f-9920-64759a221c60/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa8a5e3-1742-4f6f-9920-64759a221c60/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce994d1a73c37780cf760e0a26dafcaa4c1158119509e83a0962528ef5890c5e [2022-11-19 06:36:06,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:36:06,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:36:06,364 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:36:06,366 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:36:06,367 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:36:06,368 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa8a5e3-1742-4f6f-9920-64759a221c60/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--usbhid--usbhid.ko-entry_point.cil.out.i [2022-11-19 06:36:06,467 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa8a5e3-1742-4f6f-9920-64759a221c60/bin/utaipan-I9t0OCRTmS/data/669079e57/a2012b7f3db44975b3880b42b8984464/FLAG6de2a8513 [2022-11-19 06:36:07,485 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:36:07,485 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa8a5e3-1742-4f6f-9920-64759a221c60/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--usbhid--usbhid.ko-entry_point.cil.out.i [2022-11-19 06:36:07,563 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa8a5e3-1742-4f6f-9920-64759a221c60/bin/utaipan-I9t0OCRTmS/data/669079e57/a2012b7f3db44975b3880b42b8984464/FLAG6de2a8513 [2022-11-19 06:36:07,830 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa8a5e3-1742-4f6f-9920-64759a221c60/bin/utaipan-I9t0OCRTmS/data/669079e57/a2012b7f3db44975b3880b42b8984464 [2022-11-19 06:36:07,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:36:07,836 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:36:07,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:36:07,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:36:07,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:36:07,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:36:07" (1/1) ... [2022-11-19 06:36:07,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3db71a63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:36:07, skipping insertion in model container [2022-11-19 06:36:07,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:36:07" (1/1) ... [2022-11-19 06:36:07,856 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:36:08,040 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:36:11,419 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_8fa8a5e3-1742-4f6f-9920-64759a221c60/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--usbhid--usbhid.ko-entry_point.cil.out.i[374492,374505] [2022-11-19 06:36:11,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:36:11,751 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:36:12,426 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_8fa8a5e3-1742-4f6f-9920-64759a221c60/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hid--usbhid--usbhid.ko-entry_point.cil.out.i[374492,374505] [2022-11-19 06:36:12,450 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:36:12,706 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:36:12,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:36:12 WrapperNode [2022-11-19 06:36:12,707 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:36:12,709 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:36:12,709 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:36:12,709 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:36:12,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:36:12" (1/1) ... [2022-11-19 06:36:12,873 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:36:12" (1/1) ... [2022-11-19 06:36:13,154 INFO L138 Inliner]: procedures = 495, calls = 4446, calls flagged for inlining = 161, calls inlined = 145, statements flattened = 7920 [2022-11-19 06:36:13,155 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:36:13,156 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:36:13,156 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:36:13,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:36:13,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:36:12" (1/1) ... [2022-11-19 06:36:13,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:36:12" (1/1) ... [2022-11-19 06:36:13,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:36:12" (1/1) ... [2022-11-19 06:36:13,211 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:36:12" (1/1) ... [2022-11-19 06:36:13,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:36:12" (1/1) ... [2022-11-19 06:36:13,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:36:12" (1/1) ... [2022-11-19 06:36:13,643 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:36:12" (1/1) ... [2022-11-19 06:36:13,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:36:12" (1/1) ... [2022-11-19 06:36:13,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:36:13,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:36:13,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:36:13,723 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:36:13,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:36:12" (1/1) ... [2022-11-19 06:36:13,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:36:13,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa8a5e3-1742-4f6f-9920-64759a221c60/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:36:13,762 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa8a5e3-1742-4f6f-9920-64759a221c60/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:36:13,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa8a5e3-1742-4f6f-9920-64759a221c60/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:36:13,822 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-19 06:36:13,822 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-19 06:36:13,822 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-19 06:36:13,822 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_request_effect_upload [2022-11-19 06:36:13,822 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_request_effect_upload [2022-11-19 06:36:13,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 06:36:13,823 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 06:36:13,823 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2022-11-19 06:36:13,823 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2022-11-19 06:36:13,823 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_playback_pid [2022-11-19 06:36:13,823 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_playback_pid [2022-11-19 06:36:13,824 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_find_special_field [2022-11-19 06:36:13,824 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_find_special_field [2022-11-19 06:36:13,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 06:36:13,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 06:36:13,824 INFO L130 BoogieDeclarations]: Found specification of procedure hid_reset [2022-11-19 06:36:13,824 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_reset [2022-11-19 06:36:13,825 INFO L130 BoogieDeclarations]: Found specification of procedure usb_block_urb [2022-11-19 06:36:13,825 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_block_urb [2022-11-19 06:36:13,825 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-11-19 06:36:13,825 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-11-19 06:36:13,825 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_check_usage [2022-11-19 06:36:13,825 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_check_usage [2022-11-19 06:36:13,826 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2022-11-19 06:36:13,826 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2022-11-19 06:36:13,826 INFO L130 BoogieDeclarations]: Found specification of procedure __usb_get_extra_descriptor [2022-11-19 06:36:13,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __usb_get_extra_descriptor [2022-11-19 06:36:13,826 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_init_reports [2022-11-19 06:36:13,827 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_init_reports [2022-11-19 06:36:13,827 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-11-19 06:36:13,827 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-11-19 06:36:13,827 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-19 06:36:13,827 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-19 06:36:13,827 INFO L130 BoogieDeclarations]: Found specification of procedure hid_suspend [2022-11-19 06:36:13,828 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_suspend [2022-11-19 06:36:13,828 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_erase_pid [2022-11-19 06:36:13,828 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_erase_pid [2022-11-19 06:36:13,828 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 06:36:13,829 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 06:36:13,829 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 06:36:13,829 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2022-11-19 06:36:13,829 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2022-11-19 06:36:13,829 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-11-19 06:36:13,829 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-11-19 06:36:13,830 INFO L130 BoogieDeclarations]: Found specification of procedure hiddev_devnode [2022-11-19 06:36:13,830 INFO L138 BoogieDeclarations]: Found implementation of procedure hiddev_devnode [2022-11-19 06:36:13,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 06:36:13,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 06:36:13,830 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-19 06:36:13,831 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-19 06:36:13,831 INFO L130 BoogieDeclarations]: Found specification of procedure hid_submit_out [2022-11-19 06:36:13,831 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_submit_out [2022-11-19 06:36:13,831 INFO L130 BoogieDeclarations]: Found specification of procedure hid_resume_common [2022-11-19 06:36:13,831 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_resume_common [2022-11-19 06:36:13,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 06:36:13,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_thread_lock_of_hiddev_list [2022-11-19 06:36:13,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_thread_lock_of_hiddev_list [2022-11-19 06:36:13,832 INFO L130 BoogieDeclarations]: Found specification of procedure hid_output_report [2022-11-19 06:36:13,832 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_output_report [2022-11-19 06:36:13,832 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-11-19 06:36:13,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-11-19 06:36:13,833 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-19 06:36:13,833 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-19 06:36:13,833 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-19 06:36:13,833 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-19 06:36:13,833 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_power [2022-11-19 06:36:13,833 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_power [2022-11-19 06:36:13,834 INFO L130 BoogieDeclarations]: Found specification of procedure hid_free_buffers [2022-11-19 06:36:13,834 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_free_buffers [2022-11-19 06:36:13,834 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 06:36:13,834 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 06:36:13,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 06:36:13,835 INFO L130 BoogieDeclarations]: Found specification of procedure hid_pidff_init [2022-11-19 06:36:13,835 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_pidff_init [2022-11-19 06:36:13,835 INFO L130 BoogieDeclarations]: Found specification of procedure hid_find_max_report [2022-11-19 06:36:13,835 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_find_max_report [2022-11-19 06:36:13,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_existancelock_of_hiddev [2022-11-19 06:36:13,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_existancelock_of_hiddev [2022-11-19 06:36:13,836 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-19 06:36:13,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-19 06:36:13,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 06:36:13,836 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_autocenter [2022-11-19 06:36:13,836 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_autocenter [2022-11-19 06:36:13,836 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_request [2022-11-19 06:36:13,837 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_request [2022-11-19 06:36:13,837 INFO L130 BoogieDeclarations]: Found specification of procedure hiddev_ioctl [2022-11-19 06:36:13,837 INFO L138 BoogieDeclarations]: Found implementation of procedure hiddev_ioctl [2022-11-19 06:36:13,837 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-11-19 06:36:13,837 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2022-11-19 06:36:13,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 06:36:13,838 INFO L130 BoogieDeclarations]: Found specification of procedure hid_submit_ctrl [2022-11-19 06:36:13,838 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_submit_ctrl [2022-11-19 06:36:13,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 06:36:13,838 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 06:36:13,838 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-19 06:36:13,838 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-19 06:36:13,839 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_idle [2022-11-19 06:36:13,839 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_idle [2022-11-19 06:36:13,839 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2022-11-19 06:36:13,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2022-11-19 06:36:13,839 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-19 06:36:13,839 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-19 06:36:13,840 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-19 06:36:13,840 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-19 06:36:13,840 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_restart_out_queue [2022-11-19 06:36:13,840 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_restart_out_queue [2022-11-19 06:36:13,840 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-19 06:36:13,840 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-19 06:36:13,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_thread_lock_of_hiddev_list [2022-11-19 06:36:13,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_thread_lock_of_hiddev_list [2022-11-19 06:36:13,841 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_parse [2022-11-19 06:36:13,841 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_parse [2022-11-19 06:36:13,841 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2022-11-19 06:36:13,841 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2022-11-19 06:36:13,842 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_wait_io [2022-11-19 06:36:13,842 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_wait_io [2022-11-19 06:36:13,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-19 06:36:13,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-19 06:36:13,842 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_put_power [2022-11-19 06:36:13,843 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_put_power [2022-11-19 06:36:13,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 06:36:13,844 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2022-11-19 06:36:13,844 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2022-11-19 06:36:13,844 INFO L130 BoogieDeclarations]: Found specification of procedure hiddev_poll [2022-11-19 06:36:13,844 INFO L138 BoogieDeclarations]: Found implementation of procedure hiddev_poll [2022-11-19 06:36:13,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:36:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 06:36:13,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 06:36:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_check_autocenter [2022-11-19 06:36:13,845 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_check_autocenter [2022-11-19 06:36:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 06:36:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 06:36:13,846 INFO L130 BoogieDeclarations]: Found specification of procedure hid_cease_io [2022-11-19 06:36:13,846 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_cease_io [2022-11-19 06:36:13,846 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-19 06:36:13,846 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-19 06:36:13,846 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 06:36:13,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 06:36:13,846 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-11-19 06:36:13,847 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-11-19 06:36:13,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_hid_open_mut [2022-11-19 06:36:13,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_hid_open_mut [2022-11-19 06:36:13,847 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-19 06:36:13,847 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-19 06:36:13,847 INFO L130 BoogieDeclarations]: Found specification of procedure hid_hw_wait [2022-11-19 06:36:13,848 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_hw_wait [2022-11-19 06:36:13,848 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_find_special_keys [2022-11-19 06:36:13,848 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_find_special_keys [2022-11-19 06:36:13,848 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 06:36:13,848 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 06:36:13,848 INFO L130 BoogieDeclarations]: Found specification of procedure hid_start_in [2022-11-19 06:36:13,849 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_start_in [2022-11-19 06:36:13,849 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-11-19 06:36:13,849 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-11-19 06:36:13,849 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-19 06:36:13,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-19 06:36:13,849 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-19 06:36:13,849 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-19 06:36:13,850 INFO L130 BoogieDeclarations]: Found specification of procedure hiddev_fasync [2022-11-19 06:36:13,850 INFO L138 BoogieDeclarations]: Found implementation of procedure hiddev_fasync [2022-11-19 06:36:13,850 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-11-19 06:36:13,850 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-11-19 06:36:13,850 INFO L130 BoogieDeclarations]: Found specification of procedure hid_io_error [2022-11-19 06:36:13,850 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_io_error [2022-11-19 06:36:13,851 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-19 06:36:13,851 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-19 06:36:13,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:36:13,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:36:13,851 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-19 06:36:13,851 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-19 06:36:13,851 INFO L130 BoogieDeclarations]: Found specification of procedure hid_hw_request [2022-11-19 06:36:13,852 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_hw_request [2022-11-19 06:36:13,852 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-19 06:36:13,852 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-19 06:36:13,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 06:36:13,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 06:36:13,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 06:36:13,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 06:36:13,853 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-19 06:36:13,853 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-19 06:36:13,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_7 [2022-11-19 06:36:13,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_7 [2022-11-19 06:36:13,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_existancelock_of_hiddev [2022-11-19 06:36:13,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_existancelock_of_hiddev [2022-11-19 06:36:13,854 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2022-11-19 06:36:13,854 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2022-11-19 06:36:13,854 INFO L130 BoogieDeclarations]: Found specification of procedure hid_cancel_delayed_stuff [2022-11-19 06:36:13,854 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_cancel_delayed_stuff [2022-11-19 06:36:13,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_hid_open_mut [2022-11-19 06:36:13,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_hid_open_mut [2022-11-19 06:36:13,854 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-19 06:36:13,855 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-19 06:36:13,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-19 06:36:13,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-19 06:36:13,855 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_no_suspend [2022-11-19 06:36:13,855 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_no_suspend [2022-11-19 06:36:13,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 06:36:13,856 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 06:36:13,856 INFO L130 BoogieDeclarations]: Found specification of procedure hiddev_lookup_report [2022-11-19 06:36:13,856 INFO L138 BoogieDeclarations]: Found implementation of procedure hiddev_lookup_report [2022-11-19 06:36:13,856 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 06:36:13,856 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 06:36:13,856 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface_no_resume [2022-11-19 06:36:13,856 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface_no_resume [2022-11-19 06:36:13,857 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_output_report [2022-11-19 06:36:13,857 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_output_report [2022-11-19 06:36:13,857 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-19 06:36:13,857 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-19 06:36:13,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2022-11-19 06:36:13,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2022-11-19 06:36:13,857 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_disconnect [2022-11-19 06:36:13,858 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_disconnect [2022-11-19 06:36:13,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 06:36:13,858 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 06:36:13,858 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 06:36:13,858 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2022-11-19 06:36:13,858 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2022-11-19 06:36:13,859 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_submit_report [2022-11-19 06:36:13,859 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_submit_report [2022-11-19 06:36:13,859 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_mark_busy [2022-11-19 06:36:13,859 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_mark_busy [2022-11-19 06:36:13,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 06:36:13,859 INFO L130 BoogieDeclarations]: Found specification of procedure hid_set_idle [2022-11-19 06:36:13,859 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_set_idle [2022-11-19 06:36:13,860 INFO L130 BoogieDeclarations]: Found specification of procedure hid_destroy_device [2022-11-19 06:36:13,860 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_destroy_device [2022-11-19 06:36:13,860 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-11-19 06:36:13,860 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-11-19 06:36:13,860 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_open [2022-11-19 06:36:13,860 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_open [2022-11-19 06:36:13,860 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-11-19 06:36:13,861 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-11-19 06:36:13,861 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_rescale [2022-11-19 06:36:13,861 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_rescale [2022-11-19 06:36:13,861 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_set [2022-11-19 06:36:13,861 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_set [2022-11-19 06:36:13,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 06:36:13,862 INFO L130 BoogieDeclarations]: Found specification of procedure hid_reset_resume [2022-11-19 06:36:13,862 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_reset_resume [2022-11-19 06:36:13,862 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-19 06:36:13,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-19 06:36:13,862 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-19 06:36:13,862 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-19 06:36:13,862 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-19 06:36:13,863 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-19 06:36:13,863 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-19 06:36:13,863 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-19 06:36:13,863 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_close [2022-11-19 06:36:13,863 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_close [2022-11-19 06:36:13,863 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-19 06:36:13,864 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-19 06:36:13,864 INFO L130 BoogieDeclarations]: Found specification of procedure hid_alloc_report_buf [2022-11-19 06:36:13,864 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_alloc_report_buf [2022-11-19 06:36:13,864 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_find_reports [2022-11-19 06:36:13,864 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_find_reports [2022-11-19 06:36:13,864 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-19 06:36:13,865 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-19 06:36:13,865 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface_async [2022-11-19 06:36:13,865 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface_async [2022-11-19 06:36:13,865 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_find_fields [2022-11-19 06:36:13,865 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_find_fields [2022-11-19 06:36:13,865 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-19 06:36:13,865 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-19 06:36:13,866 INFO L130 BoogieDeclarations]: Found specification of procedure hiddev_write [2022-11-19 06:36:13,866 INFO L138 BoogieDeclarations]: Found implementation of procedure hiddev_write [2022-11-19 06:36:13,866 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_quirks_exit [2022-11-19 06:36:13,866 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_quirks_exit [2022-11-19 06:36:13,866 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-19 06:36:13,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-19 06:36:13,867 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-19 06:36:13,867 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-19 06:36:13,867 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_2 [2022-11-19 06:36:13,867 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_2 [2022-11-19 06:36:13,867 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_restart_queues [2022-11-19 06:36:13,867 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_restart_queues [2022-11-19 06:36:13,867 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2022-11-19 06:36:13,868 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2022-11-19 06:36:13,868 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 06:36:13,868 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 06:36:13,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 06:36:13,868 INFO L130 BoogieDeclarations]: Found specification of procedure hid_device_io_stop [2022-11-19 06:36:13,868 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_device_io_stop [2022-11-19 06:36:13,869 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-19 06:36:13,869 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-19 06:36:13,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 06:36:13,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 06:36:13,869 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_restart_ctrl_queue [2022-11-19 06:36:13,869 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_restart_ctrl_queue [2022-11-19 06:36:13,869 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_start [2022-11-19 06:36:13,870 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_start [2022-11-19 06:36:13,870 INFO L130 BoogieDeclarations]: Found specification of procedure pidff_reset [2022-11-19 06:36:13,870 INFO L138 BoogieDeclarations]: Found implementation of procedure pidff_reset [2022-11-19 06:36:13,870 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-19 06:36:13,870 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-19 06:36:13,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-19 06:36:13,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-19 06:36:13,871 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-19 06:36:13,871 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-19 06:36:13,871 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-11-19 06:36:13,871 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-11-19 06:36:13,871 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-19 06:36:13,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-19 06:36:13,871 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-19 06:36:13,872 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-19 06:36:13,872 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-19 06:36:13,872 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-19 06:36:13,872 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_lookup_quirk [2022-11-19 06:36:13,872 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_lookup_quirk [2022-11-19 06:36:13,872 INFO L130 BoogieDeclarations]: Found specification of procedure hid_post_reset [2022-11-19 06:36:13,872 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_post_reset [2022-11-19 06:36:13,873 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_raw_request [2022-11-19 06:36:13,873 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_raw_request [2022-11-19 06:36:13,873 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 06:36:13,873 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 06:36:13,873 INFO L130 BoogieDeclarations]: Found specification of procedure usbhid_get_power [2022-11-19 06:36:13,873 INFO L138 BoogieDeclarations]: Found implementation of procedure usbhid_get_power [2022-11-19 06:36:13,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:36:13,874 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2022-11-19 06:36:13,874 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2022-11-19 06:36:13,874 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-11-19 06:36:13,874 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-11-19 06:36:13,874 INFO L130 BoogieDeclarations]: Found specification of procedure hid_resume [2022-11-19 06:36:13,874 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_resume [2022-11-19 06:36:13,874 INFO L130 BoogieDeclarations]: Found specification of procedure hid_get_class_descriptor [2022-11-19 06:36:13,875 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_get_class_descriptor [2022-11-19 06:36:15,168 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:36:15,176 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:36:15,673 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 06:36:36,023 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:36:38,355 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:36:38,356 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 06:36:38,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:36:38 BoogieIcfgContainer [2022-11-19 06:36:38,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:36:38,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:36:38,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:36:38,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:36:38,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:36:07" (1/3) ... [2022-11-19 06:36:38,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f519687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:36:38, skipping insertion in model container [2022-11-19 06:36:38,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:36:12" (2/3) ... [2022-11-19 06:36:38,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f519687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:36:38, skipping insertion in model container [2022-11-19 06:36:38,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:36:38" (3/3) ... [2022-11-19 06:36:38,382 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--hid--usbhid--usbhid.ko-entry_point.cil.out.i [2022-11-19 06:36:38,406 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:36:38,406 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:36:38,515 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:36:38,529 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;@68771c20, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:36:38,529 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 06:36:38,540 INFO L276 IsEmpty]: Start isEmpty. Operand has 2237 states, 1381 states have (on average 1.3707458363504708) internal successors, (1893), 1452 states have internal predecessors, (1893), 702 states have call successors, (702), 153 states have call predecessors, (702), 152 states have return successors, (693), 688 states have call predecessors, (693), 693 states have call successors, (693) [2022-11-19 06:36:38,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-19 06:36:38,564 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:36:38,565 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:36:38,566 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:36:38,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:36:38,571 INFO L85 PathProgramCache]: Analyzing trace with hash 95870191, now seen corresponding path program 1 times [2022-11-19 06:36:38,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:36:38,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937194440] [2022-11-19 06:36:38,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:36:38,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:36:39,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:36:39,813 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2022-11-19 06:36:39,814 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:36:39,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937194440] [2022-11-19 06:36:39,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937194440] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:36:39,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:36:39,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:36:39,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002072923] [2022-11-19 06:36:39,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:36:39,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:36:39,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:36:39,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:36:39,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:36:39,879 INFO L87 Difference]: Start difference. First operand has 2237 states, 1381 states have (on average 1.3707458363504708) internal successors, (1893), 1452 states have internal predecessors, (1893), 702 states have call successors, (702), 153 states have call predecessors, (702), 152 states have return successors, (693), 688 states have call predecessors, (693), 693 states have call successors, (693) Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-19 06:36:41,990 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 06:36:46,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:36:46,988 INFO L93 Difference]: Finished difference Result 6438 states and 9541 transitions. [2022-11-19 06:36:46,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:36:46,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 167 [2022-11-19 06:36:46,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:36:47,045 INFO L225 Difference]: With dead ends: 6438 [2022-11-19 06:36:47,045 INFO L226 Difference]: Without dead ends: 4209 [2022-11-19 06:36:47,062 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 06:36:47,066 INFO L413 NwaCegarLoop]: 3669 mSDtfsCounter, 2888 mSDsluCounter, 2820 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2888 SdHoareTripleChecker+Valid, 6489 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-19 06:36:47,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2888 Valid, 6489 Invalid, 803 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 801 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-11-19 06:36:47,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4209 states. [2022-11-19 06:36:47,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4209 to 4186. [2022-11-19 06:36:47,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4186 states, 2596 states have (on average 1.358628659476117) internal successors, (3527), 2702 states have internal predecessors, (3527), 1293 states have call successors, (1293), 297 states have call predecessors, (1293), 296 states have return successors, (1281), 1270 states have call predecessors, (1281), 1281 states have call successors, (1281) [2022-11-19 06:36:47,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4186 states to 4186 states and 6101 transitions. [2022-11-19 06:36:47,416 INFO L78 Accepts]: Start accepts. Automaton has 4186 states and 6101 transitions. Word has length 167 [2022-11-19 06:36:47,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:36:47,420 INFO L495 AbstractCegarLoop]: Abstraction has 4186 states and 6101 transitions. [2022-11-19 06:36:47,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-19 06:36:47,422 INFO L276 IsEmpty]: Start isEmpty. Operand 4186 states and 6101 transitions. [2022-11-19 06:36:47,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-11-19 06:36:47,438 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:36:47,439 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:36:47,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:36:47,439 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:36:47,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:36:47,441 INFO L85 PathProgramCache]: Analyzing trace with hash 76114707, now seen corresponding path program 1 times [2022-11-19 06:36:47,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:36:47,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149617178] [2022-11-19 06:36:47,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:36:47,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:36:47,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:36:48,608 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2022-11-19 06:36:48,608 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:36:48,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149617178] [2022-11-19 06:36:48,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149617178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:36:48,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:36:48,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:36:48,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73341200] [2022-11-19 06:36:48,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:36:48,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:36:48,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:36:48,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:36:48,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:36:48,614 INFO L87 Difference]: Start difference. First operand 4186 states and 6101 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-19 06:36:49,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:36:51,802 WARN L539 Checker$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 06:36:58,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:36:58,231 INFO L93 Difference]: Finished difference Result 9276 states and 13676 transitions. [2022-11-19 06:36:58,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:36:58,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 171 [2022-11-19 06:36:58,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:36:58,275 INFO L225 Difference]: With dead ends: 9276 [2022-11-19 06:36:58,276 INFO L226 Difference]: Without dead ends: 5121 [2022-11-19 06:36:58,301 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 06:36:58,302 INFO L413 NwaCegarLoop]: 3563 mSDtfsCounter, 551 mSDsluCounter, 3046 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 6609 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-11-19 06:36:58,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 6609 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 693 Invalid, 1 Unknown, 0 Unchecked, 9.3s Time] [2022-11-19 06:36:58,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5121 states. [2022-11-19 06:36:58,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5121 to 4186. [2022-11-19 06:36:58,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4186 states, 2596 states have (on average 1.3578582434514639) internal successors, (3525), 2700 states have internal predecessors, (3525), 1293 states have call successors, (1293), 297 states have call predecessors, (1293), 296 states have return successors, (1281), 1270 states have call predecessors, (1281), 1281 states have call successors, (1281) [2022-11-19 06:36:58,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4186 states to 4186 states and 6099 transitions. [2022-11-19 06:36:58,586 INFO L78 Accepts]: Start accepts. Automaton has 4186 states and 6099 transitions. Word has length 171 [2022-11-19 06:36:58,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:36:58,587 INFO L495 AbstractCegarLoop]: Abstraction has 4186 states and 6099 transitions. [2022-11-19 06:36:58,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-19 06:36:58,588 INFO L276 IsEmpty]: Start isEmpty. Operand 4186 states and 6099 transitions. [2022-11-19 06:36:58,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-19 06:36:58,592 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:36:58,593 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:36:58,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 06:36:58,593 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:36:58,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:36:58,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1822898783, now seen corresponding path program 1 times [2022-11-19 06:36:58,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:36:58,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046424249] [2022-11-19 06:36:58,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:36:58,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:36:58,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:36:59,380 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2022-11-19 06:36:59,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:36:59,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046424249] [2022-11-19 06:36:59,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046424249] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:36:59,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:36:59,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:36:59,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74537788] [2022-11-19 06:36:59,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:36:59,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:36:59,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:36:59,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:36:59,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:36:59,386 INFO L87 Difference]: Start difference. First operand 4186 states and 6099 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-19 06:37:01,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:37:04,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:37:08,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:37:08,752 INFO L93 Difference]: Finished difference Result 12416 states and 18080 transitions. [2022-11-19 06:37:08,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:37:08,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 176 [2022-11-19 06:37:08,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:37:08,815 INFO L225 Difference]: With dead ends: 12416 [2022-11-19 06:37:08,815 INFO L226 Difference]: Without dead ends: 8261 [2022-11-19 06:37:08,842 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 06:37:08,843 INFO L413 NwaCegarLoop]: 3949 mSDtfsCounter, 3162 mSDsluCounter, 2886 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3162 SdHoareTripleChecker+Valid, 6835 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-11-19 06:37:08,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3162 Valid, 6835 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 686 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2022-11-19 06:37:08,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8261 states. [2022-11-19 06:37:09,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8261 to 8253. [2022-11-19 06:37:09,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8253 states, 5122 states have (on average 1.3568918391253417) internal successors, (6950), 5315 states have internal predecessors, (6950), 2538 states have call successors, (2538), 593 states have call predecessors, (2538), 592 states have return successors, (2526), 2506 states have call predecessors, (2526), 2526 states have call successors, (2526) [2022-11-19 06:37:09,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8253 states to 8253 states and 12014 transitions. [2022-11-19 06:37:09,438 INFO L78 Accepts]: Start accepts. Automaton has 8253 states and 12014 transitions. Word has length 176 [2022-11-19 06:37:09,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:37:09,439 INFO L495 AbstractCegarLoop]: Abstraction has 8253 states and 12014 transitions. [2022-11-19 06:37:09,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-19 06:37:09,441 INFO L276 IsEmpty]: Start isEmpty. Operand 8253 states and 12014 transitions. [2022-11-19 06:37:09,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-19 06:37:09,446 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:37:09,447 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:37:09,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 06:37:09,447 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:37:09,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:37:09,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1635328675, now seen corresponding path program 1 times [2022-11-19 06:37:09,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:37:09,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008238997] [2022-11-19 06:37:09,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:37:09,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:37:09,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:37:10,219 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2022-11-19 06:37:10,220 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:37:10,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008238997] [2022-11-19 06:37:10,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008238997] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:37:10,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:37:10,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:37:10,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315844656] [2022-11-19 06:37:10,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:37:10,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:37:10,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:37:10,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:37:10,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:37:10,226 INFO L87 Difference]: Start difference. First operand 8253 states and 12014 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-19 06:37:12,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:37:17,392 WARN L539 Checker$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 06:37:19,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:37:23,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:37:25,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:37:29,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:37:29,104 INFO L93 Difference]: Finished difference Result 19404 states and 28374 transitions. [2022-11-19 06:37:29,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:37:29,105 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 183 [2022-11-19 06:37:29,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:37:29,199 INFO L225 Difference]: With dead ends: 19404 [2022-11-19 06:37:29,199 INFO L226 Difference]: Without dead ends: 11182 [2022-11-19 06:37:29,239 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 06:37:29,243 INFO L413 NwaCegarLoop]: 5733 mSDtfsCounter, 4120 mSDsluCounter, 8002 mSDsCounter, 0 mSdLazyCounter, 1757 mSolverCounterSat, 249 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4120 SdHoareTripleChecker+Valid, 13735 SdHoareTripleChecker+Invalid, 2008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 1757 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:37:29,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4120 Valid, 13735 Invalid, 2008 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [249 Valid, 1757 Invalid, 2 Unknown, 0 Unchecked, 18.1s Time] [2022-11-19 06:37:29,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11182 states. [2022-11-19 06:37:29,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11182 to 8274. [2022-11-19 06:37:29,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8274 states, 5135 states have (on average 1.3559883154819863) internal successors, (6963), 5328 states have internal predecessors, (6963), 2541 states have call successors, (2541), 598 states have call predecessors, (2541), 597 states have return successors, (2529), 2509 states have call predecessors, (2529), 2529 states have call successors, (2529) [2022-11-19 06:37:29,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8274 states to 8274 states and 12033 transitions. [2022-11-19 06:37:29,762 INFO L78 Accepts]: Start accepts. Automaton has 8274 states and 12033 transitions. Word has length 183 [2022-11-19 06:37:29,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:37:29,763 INFO L495 AbstractCegarLoop]: Abstraction has 8274 states and 12033 transitions. [2022-11-19 06:37:29,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-19 06:37:29,763 INFO L276 IsEmpty]: Start isEmpty. Operand 8274 states and 12033 transitions. [2022-11-19 06:37:29,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-11-19 06:37:29,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:37:29,768 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:37:29,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 06:37:29,768 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:37:29,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:37:29,769 INFO L85 PathProgramCache]: Analyzing trace with hash 915505508, now seen corresponding path program 1 times [2022-11-19 06:37:29,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:37:29,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074328693] [2022-11-19 06:37:29,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:37:29,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:37:29,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:37:30,350 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2022-11-19 06:37:30,351 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:37:30,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074328693] [2022-11-19 06:37:30,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074328693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:37:30,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:37:30,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:37:30,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093894707] [2022-11-19 06:37:30,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:37:30,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:37:30,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:37:30,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:37:30,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:37:30,356 INFO L87 Difference]: Start difference. First operand 8274 states and 12033 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-19 06:37:32,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:37:34,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:37:39,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:37:39,117 INFO L93 Difference]: Finished difference Result 15305 states and 22136 transitions. [2022-11-19 06:37:39,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:37:39,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 196 [2022-11-19 06:37:39,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:37:39,212 INFO L225 Difference]: With dead ends: 15305 [2022-11-19 06:37:39,212 INFO L226 Difference]: Without dead ends: 15301 [2022-11-19 06:37:39,225 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 06:37:39,226 INFO L413 NwaCegarLoop]: 3694 mSDtfsCounter, 2778 mSDsluCounter, 2834 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2778 SdHoareTripleChecker+Valid, 6528 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:37:39,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2778 Valid, 6528 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 681 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2022-11-19 06:37:39,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15301 states. [2022-11-19 06:37:40,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15301 to 15295. [2022-11-19 06:37:40,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15295 states, 9437 states have (on average 1.347356151319275) internal successors, (12715), 9814 states have internal predecessors, (12715), 4710 states have call successors, (4710), 1156 states have call predecessors, (4710), 1147 states have return successors, (4698), 4638 states have call predecessors, (4698), 4698 states have call successors, (4698) [2022-11-19 06:37:40,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15295 states to 15295 states and 22123 transitions. [2022-11-19 06:37:40,470 INFO L78 Accepts]: Start accepts. Automaton has 15295 states and 22123 transitions. Word has length 196 [2022-11-19 06:37:40,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:37:40,471 INFO L495 AbstractCegarLoop]: Abstraction has 15295 states and 22123 transitions. [2022-11-19 06:37:40,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-19 06:37:40,472 INFO L276 IsEmpty]: Start isEmpty. Operand 15295 states and 22123 transitions. [2022-11-19 06:37:40,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-19 06:37:40,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:37:40,477 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:37:40,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 06:37:40,478 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:37:40,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:37:40,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1685264694, now seen corresponding path program 1 times [2022-11-19 06:37:40,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:37:40,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120293651] [2022-11-19 06:37:40,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:37:40,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:37:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:37:41,144 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2022-11-19 06:37:41,144 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:37:41,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120293651] [2022-11-19 06:37:41,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120293651] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:37:41,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:37:41,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:37:41,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252606613] [2022-11-19 06:37:41,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:37:41,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:37:41,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:37:41,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:37:41,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:37:41,147 INFO L87 Difference]: Start difference. First operand 15295 states and 22123 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-19 06:37:43,241 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 06:37:47,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:37:47,705 INFO L93 Difference]: Finished difference Result 16139 states and 23097 transitions. [2022-11-19 06:37:47,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:37:47,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 197 [2022-11-19 06:37:47,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:37:47,812 INFO L225 Difference]: With dead ends: 16139 [2022-11-19 06:37:47,812 INFO L226 Difference]: Without dead ends: 16135 [2022-11-19 06:37:47,825 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 06:37:47,827 INFO L413 NwaCegarLoop]: 2945 mSDtfsCounter, 3133 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3133 SdHoareTripleChecker+Valid, 3094 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-19 06:37:47,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3133 Valid, 3094 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 367 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-11-19 06:37:47,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16135 states. [2022-11-19 06:37:48,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16135 to 16133. [2022-11-19 06:37:48,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16133 states, 9913 states have (on average 1.3418743064662564) internal successors, (13302), 10312 states have internal predecessors, (13302), 4896 states have call successors, (4896), 1332 states have call predecessors, (4896), 1323 states have return successors, (4886), 4818 states have call predecessors, (4886), 4886 states have call successors, (4886) [2022-11-19 06:37:48,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16133 states to 16133 states and 23084 transitions. [2022-11-19 06:37:48,878 INFO L78 Accepts]: Start accepts. Automaton has 16133 states and 23084 transitions. Word has length 197 [2022-11-19 06:37:48,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:37:48,881 INFO L495 AbstractCegarLoop]: Abstraction has 16133 states and 23084 transitions. [2022-11-19 06:37:48,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-19 06:37:48,882 INFO L276 IsEmpty]: Start isEmpty. Operand 16133 states and 23084 transitions. [2022-11-19 06:37:48,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-11-19 06:37:48,892 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:37:48,892 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:37:48,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 06:37:48,893 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:37:48,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:37:48,893 INFO L85 PathProgramCache]: Analyzing trace with hash -704757465, now seen corresponding path program 1 times [2022-11-19 06:37:48,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:37:48,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603265571] [2022-11-19 06:37:48,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:37:48,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:37:49,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:37:49,528 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2022-11-19 06:37:49,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:37:49,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603265571] [2022-11-19 06:37:49,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603265571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:37:49,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:37:49,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:37:49,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056634310] [2022-11-19 06:37:49,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:37:49,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:37:49,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:37:49,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:37:49,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:37:49,533 INFO L87 Difference]: Start difference. First operand 16133 states and 23084 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-19 06:37:51,625 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 06:37:54,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:37:54,361 INFO L93 Difference]: Finished difference Result 16135 states and 23085 transitions. [2022-11-19 06:37:54,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:37:54,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 198 [2022-11-19 06:37:54,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:37:54,459 INFO L225 Difference]: With dead ends: 16135 [2022-11-19 06:37:54,459 INFO L226 Difference]: Without dead ends: 16132 [2022-11-19 06:37:54,472 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 06:37:54,473 INFO L413 NwaCegarLoop]: 2919 mSDtfsCounter, 3190 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3190 SdHoareTripleChecker+Valid, 2919 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:37:54,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3190 Valid, 2919 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 327 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-11-19 06:37:54,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16132 states. [2022-11-19 06:37:55,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16132 to 16132. [2022-11-19 06:37:55,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16132 states, 9913 states have (on average 1.3417734288308283) internal successors, (13301), 10311 states have internal predecessors, (13301), 4895 states have call successors, (4895), 1332 states have call predecessors, (4895), 1323 states have return successors, (4886), 4818 states have call predecessors, (4886), 4886 states have call successors, (4886) [2022-11-19 06:37:55,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16132 states to 16132 states and 23082 transitions. [2022-11-19 06:37:55,549 INFO L78 Accepts]: Start accepts. Automaton has 16132 states and 23082 transitions. Word has length 198 [2022-11-19 06:37:55,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:37:55,551 INFO L495 AbstractCegarLoop]: Abstraction has 16132 states and 23082 transitions. [2022-11-19 06:37:55,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-19 06:37:55,551 INFO L276 IsEmpty]: Start isEmpty. Operand 16132 states and 23082 transitions. [2022-11-19 06:37:55,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-19 06:37:55,557 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:37:55,558 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:37:55,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 06:37:55,558 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:37:55,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:37:55,559 INFO L85 PathProgramCache]: Analyzing trace with hash -373799571, now seen corresponding path program 1 times [2022-11-19 06:37:55,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:37:55,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139608740] [2022-11-19 06:37:55,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:37:55,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:37:55,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:37:56,127 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2022-11-19 06:37:56,127 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:37:56,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139608740] [2022-11-19 06:37:56,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139608740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:37:56,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:37:56,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:37:56,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360510973] [2022-11-19 06:37:56,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:37:56,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:37:56,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:37:56,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:37:56,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:37:56,130 INFO L87 Difference]: Start difference. First operand 16132 states and 23082 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-19 06:37:58,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:38:00,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:38:00,648 INFO L93 Difference]: Finished difference Result 16134 states and 23083 transitions. [2022-11-19 06:38:00,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:38:00,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 199 [2022-11-19 06:38:00,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:38:00,730 INFO L225 Difference]: With dead ends: 16134 [2022-11-19 06:38:00,730 INFO L226 Difference]: Without dead ends: 16131 [2022-11-19 06:38:00,741 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 06:38:00,741 INFO L413 NwaCegarLoop]: 2917 mSDtfsCounter, 3187 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3187 SdHoareTripleChecker+Valid, 2917 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-19 06:38:00,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3187 Valid, 2917 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 327 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-11-19 06:38:00,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16131 states. [2022-11-19 06:38:01,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16131 to 16131. [2022-11-19 06:38:01,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16131 states, 9913 states have (on average 1.3416725511954) internal successors, (13300), 10310 states have internal predecessors, (13300), 4894 states have call successors, (4894), 1332 states have call predecessors, (4894), 1323 states have return successors, (4886), 4818 states have call predecessors, (4886), 4886 states have call successors, (4886) [2022-11-19 06:38:01,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16131 states to 16131 states and 23080 transitions. [2022-11-19 06:38:01,600 INFO L78 Accepts]: Start accepts. Automaton has 16131 states and 23080 transitions. Word has length 199 [2022-11-19 06:38:01,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:38:01,601 INFO L495 AbstractCegarLoop]: Abstraction has 16131 states and 23080 transitions. [2022-11-19 06:38:01,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-19 06:38:01,601 INFO L276 IsEmpty]: Start isEmpty. Operand 16131 states and 23080 transitions. [2022-11-19 06:38:01,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-11-19 06:38:01,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:38:01,606 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:38:01,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 06:38:01,607 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:38:01,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:38:01,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1295965418, now seen corresponding path program 1 times [2022-11-19 06:38:01,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:38:01,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128021533] [2022-11-19 06:38:01,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:38:01,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:38:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:38:02,078 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2022-11-19 06:38:02,079 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:38:02,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128021533] [2022-11-19 06:38:02,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128021533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:38:02,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:38:02,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:38:02,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293864750] [2022-11-19 06:38:02,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:38:02,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:38:02,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:38:02,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:38:02,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:38:02,084 INFO L87 Difference]: Start difference. First operand 16131 states and 23080 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-19 06:38:04,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:38:05,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:38:08,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:38:08,179 INFO L93 Difference]: Finished difference Result 16133 states and 23081 transitions. [2022-11-19 06:38:08,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:38:08,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 200 [2022-11-19 06:38:08,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:38:08,268 INFO L225 Difference]: With dead ends: 16133 [2022-11-19 06:38:08,268 INFO L226 Difference]: Without dead ends: 16130 [2022-11-19 06:38:08,279 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 06:38:08,280 INFO L413 NwaCegarLoop]: 2915 mSDtfsCounter, 3184 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3184 SdHoareTripleChecker+Valid, 2915 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-19 06:38:08,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3184 Valid, 2915 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 327 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-11-19 06:38:08,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16130 states. [2022-11-19 06:38:09,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16130 to 16130. [2022-11-19 06:38:09,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16130 states, 9913 states have (on average 1.3415716735599716) internal successors, (13299), 10309 states have internal predecessors, (13299), 4893 states have call successors, (4893), 1332 states have call predecessors, (4893), 1323 states have return successors, (4886), 4818 states have call predecessors, (4886), 4886 states have call successors, (4886) [2022-11-19 06:38:09,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16130 states to 16130 states and 23078 transitions. [2022-11-19 06:38:09,285 INFO L78 Accepts]: Start accepts. Automaton has 16130 states and 23078 transitions. Word has length 200 [2022-11-19 06:38:09,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:38:09,286 INFO L495 AbstractCegarLoop]: Abstraction has 16130 states and 23078 transitions. [2022-11-19 06:38:09,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-19 06:38:09,287 INFO L276 IsEmpty]: Start isEmpty. Operand 16130 states and 23078 transitions. [2022-11-19 06:38:09,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-11-19 06:38:09,292 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:38:09,293 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:38:09,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 06:38:09,293 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:38:09,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:38:09,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1519077392, now seen corresponding path program 1 times [2022-11-19 06:38:09,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:38:09,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385589190] [2022-11-19 06:38:09,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:38:09,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:38:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:38:09,833 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2022-11-19 06:38:09,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:38:09,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385589190] [2022-11-19 06:38:09,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385589190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:38:09,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:38:09,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:38:09,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307147395] [2022-11-19 06:38:09,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:38:09,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:38:09,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:38:09,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:38:09,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:38:09,836 INFO L87 Difference]: Start difference. First operand 16130 states and 23078 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-19 06:38:11,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:38:18,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:38:18,368 INFO L93 Difference]: Finished difference Result 31593 states and 45146 transitions. [2022-11-19 06:38:18,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:38:18,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 201 [2022-11-19 06:38:18,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:38:18,561 INFO L225 Difference]: With dead ends: 31593 [2022-11-19 06:38:18,561 INFO L226 Difference]: Without dead ends: 31551 [2022-11-19 06:38:18,596 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 06:38:18,597 INFO L413 NwaCegarLoop]: 3560 mSDtfsCounter, 3089 mSDsluCounter, 2844 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3089 SdHoareTripleChecker+Valid, 6404 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:38:18,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3089 Valid, 6404 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 653 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-11-19 06:38:18,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31551 states. [2022-11-19 06:38:20,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31551 to 31545. [2022-11-19 06:38:20,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31545 states, 19390 states have (on average 1.3401753481175864) internal successors, (25986), 20175 states have internal predecessors, (25986), 9551 states have call successors, (9551), 2628 states have call predecessors, (9551), 2603 states have return successors, (9544), 9401 states have call predecessors, (9544), 9544 states have call successors, (9544) [2022-11-19 06:38:21,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31545 states to 31545 states and 45081 transitions. [2022-11-19 06:38:21,173 INFO L78 Accepts]: Start accepts. Automaton has 31545 states and 45081 transitions. Word has length 201 [2022-11-19 06:38:21,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:38:21,173 INFO L495 AbstractCegarLoop]: Abstraction has 31545 states and 45081 transitions. [2022-11-19 06:38:21,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-19 06:38:21,174 INFO L276 IsEmpty]: Start isEmpty. Operand 31545 states and 45081 transitions. [2022-11-19 06:38:21,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-11-19 06:38:21,180 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:38:21,180 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-19 06:38:21,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 06:38:21,181 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:38:21,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:38:21,181 INFO L85 PathProgramCache]: Analyzing trace with hash -806949847, now seen corresponding path program 1 times [2022-11-19 06:38:21,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:38:21,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125709306] [2022-11-19 06:38:21,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:38:21,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:38:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:38:21,648 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2022-11-19 06:38:21,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:38:21,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125709306] [2022-11-19 06:38:21,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125709306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:38:21,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:38:21,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:38:21,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222416160] [2022-11-19 06:38:21,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:38:21,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:38:21,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:38:21,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:38:21,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:38:21,651 INFO L87 Difference]: Start difference. First operand 31545 states and 45081 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-19 06:38:23,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:38:26,548 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 06:38:33,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:38:33,417 INFO L93 Difference]: Finished difference Result 85858 states and 122320 transitions. [2022-11-19 06:38:33,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:38:33,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 217 [2022-11-19 06:38:33,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:38:33,823 INFO L225 Difference]: With dead ends: 85858 [2022-11-19 06:38:33,823 INFO L226 Difference]: Without dead ends: 54361 [2022-11-19 06:38:33,970 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 06:38:33,971 INFO L413 NwaCegarLoop]: 4551 mSDtfsCounter, 2907 mSDsluCounter, 2896 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2907 SdHoareTripleChecker+Valid, 7447 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-11-19 06:38:33,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2907 Valid, 7447 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 828 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2022-11-19 06:38:34,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54361 states. [2022-11-19 06:38:36,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54361 to 54333. [2022-11-19 06:38:37,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54333 states, 33560 states have (on average 1.3427294398092968) internal successors, (45062), 34881 states have internal predecessors, (45062), 16101 states have call successors, (16101), 4720 states have call predecessors, (16101), 4671 states have return successors, (16094), 15815 states have call predecessors, (16094), 16094 states have call successors, (16094) [2022-11-19 06:38:37,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54333 states to 54333 states and 77257 transitions. [2022-11-19 06:38:37,237 INFO L78 Accepts]: Start accepts. Automaton has 54333 states and 77257 transitions. Word has length 217 [2022-11-19 06:38:37,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:38:37,238 INFO L495 AbstractCegarLoop]: Abstraction has 54333 states and 77257 transitions. [2022-11-19 06:38:37,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-19 06:38:37,238 INFO L276 IsEmpty]: Start isEmpty. Operand 54333 states and 77257 transitions. [2022-11-19 06:38:37,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-11-19 06:38:37,255 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:38:37,256 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2022-11-19 06:38:37,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 06:38:37,256 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:38:37,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:38:37,257 INFO L85 PathProgramCache]: Analyzing trace with hash -736220994, now seen corresponding path program 1 times [2022-11-19 06:38:37,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:38:37,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907398925] [2022-11-19 06:38:37,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:38:37,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:38:37,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:38:37,905 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 665 trivial. 0 not checked. [2022-11-19 06:38:37,905 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:38:37,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907398925] [2022-11-19 06:38:37,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907398925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:38:37,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:38:37,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:38:37,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769393524] [2022-11-19 06:38:37,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:38:37,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:38:37,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:38:37,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:38:37,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:38:37,908 INFO L87 Difference]: Start difference. First operand 54333 states and 77257 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-19 06:38:39,997 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 06:38:41,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:38:44,765 WARN L539 Checker$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 06:38:48,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:38:54,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:38:54,653 INFO L93 Difference]: Finished difference Result 135838 states and 193310 transitions. [2022-11-19 06:38:54,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:38:54,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 246 [2022-11-19 06:38:54,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:38:55,009 INFO L225 Difference]: With dead ends: 135838 [2022-11-19 06:38:55,010 INFO L226 Difference]: Without dead ends: 81553 [2022-11-19 06:38:55,189 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 06:38:55,190 INFO L413 NwaCegarLoop]: 5175 mSDtfsCounter, 2981 mSDsluCounter, 2773 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 57 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2981 SdHoareTripleChecker+Valid, 7948 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-11-19 06:38:55,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2981 Valid, 7948 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1072 Invalid, 2 Unknown, 0 Unchecked, 11.6s Time] [2022-11-19 06:38:55,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81553 states. [2022-11-19 06:39:00,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81553 to 81526. [2022-11-19 06:39:00,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81526 states, 50661 states have (on average 1.3378140976293402) internal successors, (67775), 52657 states have internal predecessors, (67775), 23816 states have call successors, (23816), 7121 states have call predecessors, (23816), 7048 states have return successors, (23809), 23379 states have call predecessors, (23809), 23809 states have call successors, (23809) [2022-11-19 06:39:01,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81526 states to 81526 states and 115400 transitions. [2022-11-19 06:39:01,160 INFO L78 Accepts]: Start accepts. Automaton has 81526 states and 115400 transitions. Word has length 246 [2022-11-19 06:39:01,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:39:01,161 INFO L495 AbstractCegarLoop]: Abstraction has 81526 states and 115400 transitions. [2022-11-19 06:39:01,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-19 06:39:01,162 INFO L276 IsEmpty]: Start isEmpty. Operand 81526 states and 115400 transitions. [2022-11-19 06:39:01,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-11-19 06:39:01,180 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:39:01,180 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-19 06:39:01,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-19 06:39:01,180 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:39:01,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:39:01,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1369788519, now seen corresponding path program 1 times [2022-11-19 06:39:01,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:39:01,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582311565] [2022-11-19 06:39:01,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:39:01,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:39:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:39:01,895 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 487 trivial. 0 not checked. [2022-11-19 06:39:01,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:39:01,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582311565] [2022-11-19 06:39:01,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582311565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:39:01,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:39:01,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:39:01,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99459513] [2022-11-19 06:39:01,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:39:01,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:39:01,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:39:01,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:39:01,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:39:01,899 INFO L87 Difference]: Start difference. First operand 81526 states and 115400 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-19 06:39:03,992 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 06:39:05,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:39:09,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:39:10,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:39:14,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:39:14,973 INFO L93 Difference]: Finished difference Result 127518 states and 180130 transitions. [2022-11-19 06:39:14,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:39:14,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 261 [2022-11-19 06:39:14,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:39:15,175 INFO L225 Difference]: With dead ends: 127518 [2022-11-19 06:39:15,175 INFO L226 Difference]: Without dead ends: 46037 [2022-11-19 06:39:15,387 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 06:39:15,388 INFO L413 NwaCegarLoop]: 2919 mSDtfsCounter, 12 mSDsluCounter, 2911 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 5830 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-11-19 06:39:15,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 5830 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 656 Invalid, 1 Unknown, 0 Unchecked, 9.6s Time] [2022-11-19 06:39:15,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46037 states.