./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-43_2a-drivers--scsi--ips.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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c97e20a-f756-46c3-b038-ae4c8f79a999/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c97e20a-f756-46c3-b038-ae4c8f79a999/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_9c97e20a-f756-46c3-b038-ae4c8f79a999/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c97e20a-f756-46c3-b038-ae4c8f79a999/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c97e20a-f756-46c3-b038-ae4c8f79a999/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_9c97e20a-f756-46c3-b038-ae4c8f79a999/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 4a4f053d4c8e05b05b5c7887f5d3a3e872b1a59439c17cfd3f803da6611a851a --- 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 08:32:01,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:32:01,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:32:01,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:32:01,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:32:01,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:32:01,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:32:01,062 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:32:01,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:32:01,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:32:01,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:32:01,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:32:01,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:32:01,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:32:01,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:32:01,080 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:32:01,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:32:01,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:32:01,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:32:01,091 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:32:01,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:32:01,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:32:01,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:32:01,100 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:32:01,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:32:01,109 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:32:01,110 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:32:01,111 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:32:01,112 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:32:01,113 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:32:01,114 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:32:01,115 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:32:01,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:32:01,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:32:01,120 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:32:01,120 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:32:01,121 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:32:01,121 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:32:01,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:32:01,122 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:32:01,123 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:32:01,124 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c97e20a-f756-46c3-b038-ae4c8f79a999/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 08:32:01,165 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:32:01,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:32:01,166 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:32:01,166 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:32:01,167 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:32:01,167 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:32:01,168 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:32:01,168 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:32:01,168 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:32:01,168 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:32:01,169 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:32:01,170 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:32:01,170 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:32:01,170 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:32:01,170 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:32:01,171 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:32:01,171 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:32:01,171 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:32:01,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:32:01,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:32:01,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:32:01,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:32:01,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:32:01,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:32:01,174 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:32:01,175 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:32:01,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:32:01,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:32:01,175 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:32:01,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:32:01,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:32:01,176 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:32:01,176 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:32:01,177 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:32:01,177 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:32:01,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:32:01,177 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:32:01,177 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:32:01,178 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_9c97e20a-f756-46c3-b038-ae4c8f79a999/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c97e20a-f756-46c3-b038-ae4c8f79a999/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a4f053d4c8e05b05b5c7887f5d3a3e872b1a59439c17cfd3f803da6611a851a [2022-11-19 08:32:01,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:32:01,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:32:01,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:32:01,496 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:32:01,497 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:32:01,499 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c97e20a-f756-46c3-b038-ae4c8f79a999/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i [2022-11-19 08:32:01,582 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c97e20a-f756-46c3-b038-ae4c8f79a999/bin/utaipan-I9t0OCRTmS/data/8ee5344ca/d6f790646ca34748abba63b4df6b5b18/FLAGc24b49fd3 [2022-11-19 08:32:02,594 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:32:02,595 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c97e20a-f756-46c3-b038-ae4c8f79a999/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i [2022-11-19 08:32:02,649 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c97e20a-f756-46c3-b038-ae4c8f79a999/bin/utaipan-I9t0OCRTmS/data/8ee5344ca/d6f790646ca34748abba63b4df6b5b18/FLAGc24b49fd3 [2022-11-19 08:32:02,979 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c97e20a-f756-46c3-b038-ae4c8f79a999/bin/utaipan-I9t0OCRTmS/data/8ee5344ca/d6f790646ca34748abba63b4df6b5b18 [2022-11-19 08:32:02,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:32:02,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:32:02,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:32:02,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:32:02,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:32:02,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:32:02" (1/1) ... [2022-11-19 08:32:02,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45bfb25c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:02, skipping insertion in model container [2022-11-19 08:32:02,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:32:02" (1/1) ... [2022-11-19 08:32:03,024 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:32:03,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:32:06,112 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_9c97e20a-f756-46c3-b038-ae4c8f79a999/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i[368085,368098] [2022-11-19 08:32:06,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:32:06,266 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:32:07,242 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_9c97e20a-f756-46c3-b038-ae4c8f79a999/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i[368085,368098] [2022-11-19 08:32:07,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:32:07,416 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:32:07,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:07 WrapperNode [2022-11-19 08:32:07,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:32:07,418 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:32:07,418 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:32:07,418 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:32:07,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:07" (1/1) ... [2022-11-19 08:32:07,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:07" (1/1) ... [2022-11-19 08:32:07,799 INFO L138 Inliner]: procedures = 329, calls = 4504, calls flagged for inlining = 148, calls inlined = 145, statements flattened = 9066 [2022-11-19 08:32:07,800 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:32:07,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:32:07,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:32:07,801 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:32:07,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:07" (1/1) ... [2022-11-19 08:32:07,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:07" (1/1) ... [2022-11-19 08:32:07,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:07" (1/1) ... [2022-11-19 08:32:07,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:07" (1/1) ... [2022-11-19 08:32:08,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:07" (1/1) ... [2022-11-19 08:32:08,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:07" (1/1) ... [2022-11-19 08:32:08,302 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:07" (1/1) ... [2022-11-19 08:32:08,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:07" (1/1) ... [2022-11-19 08:32:08,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:32:08,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:32:08,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:32:08,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:32:08,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:07" (1/1) ... [2022-11-19 08:32:08,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:32:08,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c97e20a-f756-46c3-b038-ae4c8f79a999/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:32:08,448 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c97e20a-f756-46c3-b038-ae4c8f79a999/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:32:08,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c97e20a-f756-46c3-b038-ae4c8f79a999/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:32:08,571 INFO L130 BoogieDeclarations]: Found specification of procedure ips_detect [2022-11-19 08:32:08,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_detect [2022-11-19 08:32:08,571 INFO L130 BoogieDeclarations]: Found specification of procedure ips_done [2022-11-19 08:32:08,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_done [2022-11-19 08:32:08,571 INFO L130 BoogieDeclarations]: Found specification of procedure ips_removeq_copp [2022-11-19 08:32:08,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_removeq_copp [2022-11-19 08:32:08,572 INFO L130 BoogieDeclarations]: Found specification of procedure ips_eh_abort [2022-11-19 08:32:08,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_eh_abort [2022-11-19 08:32:08,572 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2022-11-19 08:32:08,572 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2022-11-19 08:32:08,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 08:32:08,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 08:32:08,572 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-19 08:32:08,572 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-19 08:32:08,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 08:32:08,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 08:32:08,573 INFO L130 BoogieDeclarations]: Found specification of procedure ips_send_cmd [2022-11-19 08:32:08,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_send_cmd [2022-11-19 08:32:08,573 INFO L130 BoogieDeclarations]: Found specification of procedure seq_puts [2022-11-19 08:32:08,573 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_puts [2022-11-19 08:32:08,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 08:32:08,573 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 08:32:08,574 INFO L130 BoogieDeclarations]: Found specification of procedure ips_allocatescbs [2022-11-19 08:32:08,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_allocatescbs [2022-11-19 08:32:08,574 INFO L130 BoogieDeclarations]: Found specification of procedure do_ipsintr [2022-11-19 08:32:08,574 INFO L138 BoogieDeclarations]: Found implementation of procedure do_ipsintr [2022-11-19 08:32:08,574 INFO L130 BoogieDeclarations]: Found specification of procedure ips_intr_copperhead [2022-11-19 08:32:08,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_intr_copperhead [2022-11-19 08:32:08,574 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-19 08:32:08,574 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-19 08:32:08,575 INFO L130 BoogieDeclarations]: Found specification of procedure le32_add_cpu [2022-11-19 08:32:08,575 INFO L138 BoogieDeclarations]: Found implementation of procedure le32_add_cpu [2022-11-19 08:32:08,575 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-19 08:32:08,575 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-19 08:32:08,575 INFO L130 BoogieDeclarations]: Found specification of procedure ips_freescb [2022-11-19 08:32:08,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_freescb [2022-11-19 08:32:08,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-19 08:32:08,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-19 08:32:08,575 INFO L130 BoogieDeclarations]: Found specification of procedure ips_free_flash_copperhead [2022-11-19 08:32:08,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_free_flash_copperhead [2022-11-19 08:32:08,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 08:32:08,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 08:32:08,576 INFO L130 BoogieDeclarations]: Found specification of procedure ips_isintr_morpheus [2022-11-19 08:32:08,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_isintr_morpheus [2022-11-19 08:32:08,576 INFO L130 BoogieDeclarations]: Found specification of procedure ips_removeq_scb_head [2022-11-19 08:32:08,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_removeq_scb_head [2022-11-19 08:32:08,576 INFO L130 BoogieDeclarations]: Found specification of procedure ips_slave_configure [2022-11-19 08:32:08,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_slave_configure [2022-11-19 08:32:08,577 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-19 08:32:08,577 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-19 08:32:08,577 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2022-11-19 08:32:08,577 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2022-11-19 08:32:08,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_5 [2022-11-19 08:32:08,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_5 [2022-11-19 08:32:08,577 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-19 08:32:08,578 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-19 08:32:08,578 INFO L130 BoogieDeclarations]: Found specification of procedure ips_putq_scb_head [2022-11-19 08:32:08,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_putq_scb_head [2022-11-19 08:32:08,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-19 08:32:08,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-19 08:32:08,578 INFO L130 BoogieDeclarations]: Found specification of procedure ips_hainit [2022-11-19 08:32:08,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_hainit [2022-11-19 08:32:08,578 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 08:32:08,579 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 08:32:08,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 08:32:08,579 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 08:32:08,579 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2022-11-19 08:32:08,579 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2022-11-19 08:32:08,579 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 08:32:08,579 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 08:32:08,579 INFO L130 BoogieDeclarations]: Found specification of procedure ips_wait [2022-11-19 08:32:08,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_wait [2022-11-19 08:32:08,580 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_sglist [2022-11-19 08:32:08,580 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_sglist [2022-11-19 08:32:08,580 INFO L130 BoogieDeclarations]: Found specification of procedure ips_register_scsi [2022-11-19 08:32:08,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_register_scsi [2022-11-19 08:32:08,580 INFO L130 BoogieDeclarations]: Found specification of procedure sdev_id [2022-11-19 08:32:08,580 INFO L138 BoogieDeclarations]: Found implementation of procedure sdev_id [2022-11-19 08:32:08,580 INFO L130 BoogieDeclarations]: Found specification of procedure ips_readwrite_page5 [2022-11-19 08:32:08,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_readwrite_page5 [2022-11-19 08:32:08,580 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-19 08:32:08,581 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-19 08:32:08,581 INFO L130 BoogieDeclarations]: Found specification of procedure ips_flush_and_reset [2022-11-19 08:32:08,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_flush_and_reset [2022-11-19 08:32:08,581 INFO L130 BoogieDeclarations]: Found specification of procedure ips_send_wait [2022-11-19 08:32:08,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_send_wait [2022-11-19 08:32:08,581 INFO L130 BoogieDeclarations]: Found specification of procedure ips_removeq_wait [2022-11-19 08:32:08,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_removeq_wait [2022-11-19 08:32:08,581 INFO L130 BoogieDeclarations]: Found specification of procedure ips_intr_morpheus [2022-11-19 08:32:08,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_intr_morpheus [2022-11-19 08:32:08,582 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~uint32_t~0~X~~uint32_t~0~TO~int [2022-11-19 08:32:08,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~uint32_t~0~X~~uint32_t~0~TO~int [2022-11-19 08:32:08,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:32:08,582 INFO L130 BoogieDeclarations]: Found specification of procedure touch_nmi_watchdog [2022-11-19 08:32:08,582 INFO L138 BoogieDeclarations]: Found implementation of procedure touch_nmi_watchdog [2022-11-19 08:32:08,582 INFO L130 BoogieDeclarations]: Found specification of procedure ips_online [2022-11-19 08:32:08,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_online [2022-11-19 08:32:08,582 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-19 08:32:08,582 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-19 08:32:08,583 INFO L130 BoogieDeclarations]: Found specification of procedure ips_queue_lck [2022-11-19 08:32:08,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_queue_lck [2022-11-19 08:32:08,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:32:08,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-19 08:32:08,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-19 08:32:08,583 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-11-19 08:32:08,583 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-11-19 08:32:08,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:32:08,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 08:32:08,584 INFO L130 BoogieDeclarations]: Found specification of procedure ips_release [2022-11-19 08:32:08,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_release [2022-11-19 08:32:08,584 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2022-11-19 08:32:08,584 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2022-11-19 08:32:08,584 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2022-11-19 08:32:08,584 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-19 08:32:08,584 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-19 08:32:08,584 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-19 08:32:08,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-19 08:32:08,585 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-19 08:32:08,585 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-19 08:32:08,585 INFO L130 BoogieDeclarations]: Found specification of procedure ips_isinit_morpheus [2022-11-19 08:32:08,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_isinit_morpheus [2022-11-19 08:32:08,585 INFO L130 BoogieDeclarations]: Found specification of procedure ips_next [2022-11-19 08:32:08,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_next [2022-11-19 08:32:08,585 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 08:32:08,585 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 08:32:08,585 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-19 08:32:08,586 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-19 08:32:08,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 08:32:08,586 INFO L130 BoogieDeclarations]: Found specification of procedure ips_clear_adapter [2022-11-19 08:32:08,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_clear_adapter [2022-11-19 08:32:08,586 INFO L130 BoogieDeclarations]: Found specification of procedure ips_shift_controllers [2022-11-19 08:32:08,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_shift_controllers [2022-11-19 08:32:08,586 INFO L130 BoogieDeclarations]: Found specification of procedure ips_flash_bios [2022-11-19 08:32:08,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_flash_bios [2022-11-19 08:32:08,586 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 08:32:08,587 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 08:32:08,587 INFO L130 BoogieDeclarations]: Found specification of procedure ips_read_subsystem_parameters [2022-11-19 08:32:08,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_read_subsystem_parameters [2022-11-19 08:32:08,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 08:32:08,587 INFO L130 BoogieDeclarations]: Found specification of procedure ips_write_driver_status [2022-11-19 08:32:08,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_write_driver_status [2022-11-19 08:32:08,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:32:08,587 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-19 08:32:08,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-19 08:32:08,588 INFO L130 BoogieDeclarations]: Found specification of procedure ips_removeq_copp_head [2022-11-19 08:32:08,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_removeq_copp_head [2022-11-19 08:32:08,588 INFO L130 BoogieDeclarations]: Found specification of procedure ips_free [2022-11-19 08:32:08,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_free [2022-11-19 08:32:08,588 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2022-11-19 08:32:08,588 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2022-11-19 08:32:08,588 INFO L130 BoogieDeclarations]: Found specification of procedure ips_init_phase2 [2022-11-19 08:32:08,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_init_phase2 [2022-11-19 08:32:08,588 INFO L130 BoogieDeclarations]: Found specification of procedure ips_read_adapter_status [2022-11-19 08:32:08,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_read_adapter_status [2022-11-19 08:32:08,589 INFO L130 BoogieDeclarations]: Found specification of procedure ips_init_phase1 [2022-11-19 08:32:08,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_init_phase1 [2022-11-19 08:32:08,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 08:32:08,589 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 08:32:08,589 INFO L130 BoogieDeclarations]: Found specification of procedure ips_scmd_buf_read [2022-11-19 08:32:08,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_scmd_buf_read [2022-11-19 08:32:08,589 INFO L130 BoogieDeclarations]: Found specification of procedure ips_abort_init [2022-11-19 08:32:08,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_abort_init [2022-11-19 08:32:08,590 INFO L130 BoogieDeclarations]: Found specification of procedure ipsintr_done [2022-11-19 08:32:08,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ipsintr_done [2022-11-19 08:32:08,590 INFO L130 BoogieDeclarations]: Found specification of procedure ips_deallocatescbs [2022-11-19 08:32:08,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_deallocatescbs [2022-11-19 08:32:08,590 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-19 08:32:08,590 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-19 08:32:08,590 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 08:32:08,590 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 08:32:08,591 INFO L130 BoogieDeclarations]: Found specification of procedure ips_init_scb [2022-11-19 08:32:08,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_init_scb [2022-11-19 08:32:08,591 INFO L130 BoogieDeclarations]: Found specification of procedure ips_insert_device [2022-11-19 08:32:08,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_insert_device [2022-11-19 08:32:08,591 INFO L130 BoogieDeclarations]: Found specification of procedure ips_read_config [2022-11-19 08:32:08,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_read_config [2022-11-19 08:32:08,591 INFO L130 BoogieDeclarations]: Found specification of procedure ips_ffdc_reset [2022-11-19 08:32:08,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_ffdc_reset [2022-11-19 08:32:08,592 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-19 08:32:08,592 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-19 08:32:08,592 INFO L130 BoogieDeclarations]: Found specification of procedure ips_usrcmd [2022-11-19 08:32:08,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_usrcmd [2022-11-19 08:32:08,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:32:08,592 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 08:32:08,592 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 08:32:08,592 INFO L130 BoogieDeclarations]: Found specification of procedure ips_make_passthru [2022-11-19 08:32:08,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_make_passthru [2022-11-19 08:32:08,593 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-11-19 08:32:08,593 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-11-19 08:32:08,593 INFO L130 BoogieDeclarations]: Found specification of procedure ips_reset_copperhead_memio [2022-11-19 08:32:08,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_reset_copperhead_memio [2022-11-19 08:32:08,593 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2022-11-19 08:32:08,593 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2022-11-19 08:32:08,593 INFO L130 BoogieDeclarations]: Found specification of procedure ips_removeq_wait_head [2022-11-19 08:32:08,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_removeq_wait_head [2022-11-19 08:32:08,593 INFO L130 BoogieDeclarations]: Found specification of procedure ips_eh_reset [2022-11-19 08:32:08,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_eh_reset [2022-11-19 08:32:08,594 INFO L130 BoogieDeclarations]: Found specification of procedure ips_getscb [2022-11-19 08:32:08,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_getscb [2022-11-19 08:32:08,594 INFO L130 BoogieDeclarations]: Found specification of procedure ips_info [2022-11-19 08:32:08,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_info [2022-11-19 08:32:08,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 08:32:08,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 08:32:08,594 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2022-11-19 08:32:08,594 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2022-11-19 08:32:08,595 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~uint32_t~0 [2022-11-19 08:32:08,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~uint32_t~0 [2022-11-19 08:32:08,595 INFO L130 BoogieDeclarations]: Found specification of procedure __ips_eh_reset [2022-11-19 08:32:08,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __ips_eh_reset [2022-11-19 08:32:08,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-19 08:32:08,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-19 08:32:08,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:32:08,595 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2022-11-19 08:32:08,595 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2022-11-19 08:32:08,596 INFO L130 BoogieDeclarations]: Found specification of procedure ips_scmd_buf_write [2022-11-19 08:32:08,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_scmd_buf_write [2022-11-19 08:32:08,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-19 08:32:08,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-19 08:32:08,596 INFO L130 BoogieDeclarations]: Found specification of procedure ips_fix_ffdc_time [2022-11-19 08:32:08,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_fix_ffdc_time [2022-11-19 08:32:08,596 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_sg_count [2022-11-19 08:32:08,596 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_sg_count [2022-11-19 08:32:08,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:32:08,597 INFO L130 BoogieDeclarations]: Found specification of procedure ips_reqsen [2022-11-19 08:32:08,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_reqsen [2022-11-19 08:32:08,597 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 08:32:08,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 08:32:08,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:32:08,597 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 08:32:08,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-19 08:32:08,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-19 08:32:08,598 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 08:32:08,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 08:32:08,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2022-11-19 08:32:08,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2022-11-19 08:32:08,598 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2022-11-19 08:32:08,598 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2022-11-19 08:32:08,598 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 08:32:08,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 08:32:08,598 INFO L130 BoogieDeclarations]: Found specification of procedure ips_fill_scb_sg_single [2022-11-19 08:32:08,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_fill_scb_sg_single [2022-11-19 08:32:08,599 INFO L130 BoogieDeclarations]: Found specification of procedure ips_remove_device [2022-11-19 08:32:08,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_remove_device [2022-11-19 08:32:08,599 INFO L130 BoogieDeclarations]: Found specification of procedure ips_show_info [2022-11-19 08:32:08,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_show_info [2022-11-19 08:32:08,599 INFO L130 BoogieDeclarations]: Found specification of procedure ips_chkstatus [2022-11-19 08:32:08,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_chkstatus [2022-11-19 08:32:08,599 INFO L130 BoogieDeclarations]: Found specification of procedure ips_is_passthru [2022-11-19 08:32:08,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_is_passthru [2022-11-19 08:32:08,599 INFO L130 BoogieDeclarations]: Found specification of procedure ips_queue [2022-11-19 08:32:08,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_queue [2022-11-19 08:32:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure ips_reset_morpheus [2022-11-19 08:32:08,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_reset_morpheus [2022-11-19 08:32:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure ips_ffdc_time [2022-11-19 08:32:08,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_ffdc_time [2022-11-19 08:32:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure ips_biosparam [2022-11-19 08:32:08,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_biosparam [2022-11-19 08:32:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure sdev_channel [2022-11-19 08:32:08,600 INFO L138 BoogieDeclarations]: Found implementation of procedure sdev_channel [2022-11-19 08:32:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure ips_get_bios_version [2022-11-19 08:32:08,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_get_bios_version [2022-11-19 08:32:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure ips_reset_copperhead [2022-11-19 08:32:08,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_reset_copperhead [2022-11-19 08:32:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 08:32:08,601 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 08:32:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 08:32:08,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 08:32:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-19 08:32:08,601 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-19 08:32:08,602 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-19 08:32:08,602 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-19 08:32:08,602 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2022-11-19 08:32:08,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2022-11-19 08:32:08,602 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-19 08:32:08,602 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-19 08:32:08,602 INFO L130 BoogieDeclarations]: Found specification of procedure ips_flash_copperhead [2022-11-19 08:32:08,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ips_flash_copperhead [2022-11-19 08:32:08,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:32:08,602 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-19 08:32:08,602 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-19 08:32:08,603 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-19 08:32:08,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-19 08:32:08,603 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-19 08:32:08,603 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-19 08:32:08,603 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-19 08:32:08,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:32:08,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:32:09,800 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:32:09,804 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:32:12,145 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 08:38:07,307 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:38:13,373 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:38:13,374 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-19 08:38:13,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:38:13 BoogieIcfgContainer [2022-11-19 08:38:13,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:38:13,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:38:13,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:38:13,401 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:38:13,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:32:02" (1/3) ... [2022-11-19 08:38:13,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c1c6c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:38:13, skipping insertion in model container [2022-11-19 08:38:13,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:07" (2/3) ... [2022-11-19 08:38:13,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c1c6c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:38:13, skipping insertion in model container [2022-11-19 08:38:13,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:38:13" (3/3) ... [2022-11-19 08:38:13,404 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ips.ko-entry_point.cil.out.i [2022-11-19 08:38:13,428 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:38:13,428 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:38:13,560 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:38:13,568 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;@4157028, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:38:13,568 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:38:13,580 INFO L276 IsEmpty]: Start isEmpty. Operand has 2528 states, 1661 states have (on average 1.3816977724262491) internal successors, (2295), 1780 states have internal predecessors, (2295), 738 states have call successors, (738), 134 states have call predecessors, (738), 133 states have return successors, (729), 717 states have call predecessors, (729), 729 states have call successors, (729) [2022-11-19 08:38:13,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-19 08:38:13,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:38:13,618 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:38:13,618 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:38:13,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:38:13,624 INFO L85 PathProgramCache]: Analyzing trace with hash -2063537119, now seen corresponding path program 1 times [2022-11-19 08:38:13,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:38:13,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969841962] [2022-11-19 08:38:13,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:38:13,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:38:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:38:16,006 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-11-19 08:38:16,007 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:38:16,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969841962] [2022-11-19 08:38:16,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969841962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:38:16,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:38:16,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:38:16,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102959299] [2022-11-19 08:38:16,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:38:16,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:38:16,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:38:16,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:38:16,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:38:16,096 INFO L87 Difference]: Start difference. First operand has 2528 states, 1661 states have (on average 1.3816977724262491) internal successors, (2295), 1780 states have internal predecessors, (2295), 738 states have call successors, (738), 134 states have call predecessors, (738), 133 states have return successors, (729), 717 states have call predecessors, (729), 729 states have call successors, (729) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-19 08:38:18,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:38:21,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:38:23,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:38:26,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:38:29,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:38:31,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:38:36,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:38:41,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:38:44,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:38:46,237 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 08:38:47,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:38:47,446 INFO L93 Difference]: Finished difference Result 7360 states and 11194 transitions. [2022-11-19 08:38:47,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:38:47,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 144 [2022-11-19 08:38:47,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:38:47,517 INFO L225 Difference]: With dead ends: 7360 [2022-11-19 08:38:47,518 INFO L226 Difference]: Without dead ends: 4812 [2022-11-19 08:38:47,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:38:47,564 INFO L413 NwaCegarLoop]: 4806 mSDtfsCounter, 3466 mSDsluCounter, 3392 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 4 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3477 SdHoareTripleChecker+Valid, 8198 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:38:47,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3477 Valid, 8198 Invalid, 729 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 717 Invalid, 8 Unknown, 0 Unchecked, 30.8s Time] [2022-11-19 08:38:47,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4812 states. [2022-11-19 08:38:48,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4812 to 4806. [2022-11-19 08:38:48,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4806 states, 3151 states have (on average 1.3719454141542367) internal successors, (4323), 3356 states have internal predecessors, (4323), 1395 states have call successors, (1395), 260 states have call predecessors, (1395), 259 states have return successors, (1402), 1369 states have call predecessors, (1402), 1394 states have call successors, (1402) [2022-11-19 08:38:48,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4806 states to 4806 states and 7120 transitions. [2022-11-19 08:38:48,270 INFO L78 Accepts]: Start accepts. Automaton has 4806 states and 7120 transitions. Word has length 144 [2022-11-19 08:38:48,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:38:48,275 INFO L495 AbstractCegarLoop]: Abstraction has 4806 states and 7120 transitions. [2022-11-19 08:38:48,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-19 08:38:48,276 INFO L276 IsEmpty]: Start isEmpty. Operand 4806 states and 7120 transitions. [2022-11-19 08:38:48,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-19 08:38:48,294 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:38:48,295 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 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] [2022-11-19 08:38:48,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:38:48,296 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:38:48,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:38:48,297 INFO L85 PathProgramCache]: Analyzing trace with hash 317615433, now seen corresponding path program 1 times [2022-11-19 08:38:48,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:38:48,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423662559] [2022-11-19 08:38:48,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:38:48,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:38:48,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:38:50,149 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2022-11-19 08:38:50,149 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:38:50,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423662559] [2022-11-19 08:38:50,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423662559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:38:50,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:38:50,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:38:50,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261234158] [2022-11-19 08:38:50,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:38:50,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:38:50,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:38:50,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:38:50,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:38:50,153 INFO L87 Difference]: Start difference. First operand 4806 states and 7120 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-19 08:38:52,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:38:55,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:38:57,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:39:00,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:39:02,049 WARN L539 Checker$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 08:39:03,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:39:05,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:39:08,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:39:11,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:39:13,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:39:17,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:39:21,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:39:25,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:39:27,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:39:29,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:39:29,955 INFO L93 Difference]: Finished difference Result 9587 states and 14204 transitions. [2022-11-19 08:39:29,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:39:29,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 167 [2022-11-19 08:39:29,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:39:29,997 INFO L225 Difference]: With dead ends: 9587 [2022-11-19 08:39:29,998 INFO L226 Difference]: Without dead ends: 4800 [2022-11-19 08:39:30,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:39:30,037 INFO L413 NwaCegarLoop]: 3359 mSDtfsCounter, 1 mSDsluCounter, 6716 mSDsCounter, 0 mSdLazyCounter, 944 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10075 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 944 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:39:30,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 10075 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 944 Invalid, 8 Unknown, 0 Unchecked, 39.5s Time] [2022-11-19 08:39:30,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4800 states. [2022-11-19 08:39:30,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4800 to 4800. [2022-11-19 08:39:30,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4800 states, 3147 states have (on average 1.3717826501429933) internal successors, (4317), 3352 states have internal predecessors, (4317), 1394 states have call successors, (1394), 259 states have call predecessors, (1394), 258 states have return successors, (1401), 1368 states have call predecessors, (1401), 1393 states have call successors, (1401) [2022-11-19 08:39:30,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4800 states to 4800 states and 7112 transitions. [2022-11-19 08:39:30,295 INFO L78 Accepts]: Start accepts. Automaton has 4800 states and 7112 transitions. Word has length 167 [2022-11-19 08:39:30,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:39:30,297 INFO L495 AbstractCegarLoop]: Abstraction has 4800 states and 7112 transitions. [2022-11-19 08:39:30,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-19 08:39:30,298 INFO L276 IsEmpty]: Start isEmpty. Operand 4800 states and 7112 transitions. [2022-11-19 08:39:30,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-19 08:39:30,307 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:39:30,308 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:39:30,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:39:30,308 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:39:30,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:39:30,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1729322821, now seen corresponding path program 1 times [2022-11-19 08:39:30,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:39:30,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65404220] [2022-11-19 08:39:30,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:39:30,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:39:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:39:31,477 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-11-19 08:39:31,480 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:39:31,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65404220] [2022-11-19 08:39:31,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65404220] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:39:31,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:39:31,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:39:31,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771211798] [2022-11-19 08:39:31,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:39:31,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:39:31,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:39:31,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:39:31,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:39:31,483 INFO L87 Difference]: Start difference. First operand 4800 states and 7112 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 08:39:33,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:39:36,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:39:38,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:39:40,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:39:44,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:39:47,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:39:48,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:39:50,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:39:56,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:40:00,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:40:02,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:40:03,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:40:03,834 INFO L93 Difference]: Finished difference Result 14245 states and 21113 transitions. [2022-11-19 08:40:03,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:40:03,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 173 [2022-11-19 08:40:03,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:40:03,930 INFO L225 Difference]: With dead ends: 14245 [2022-11-19 08:40:03,931 INFO L226 Difference]: Without dead ends: 9472 [2022-11-19 08:40:03,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:40:03,978 INFO L413 NwaCegarLoop]: 4272 mSDtfsCounter, 3488 mSDsluCounter, 3349 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3499 SdHoareTripleChecker+Valid, 7621 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:40:03,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3499 Valid, 7621 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 676 Invalid, 8 Unknown, 0 Unchecked, 31.9s Time] [2022-11-19 08:40:03,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9472 states. [2022-11-19 08:40:04,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9472 to 9463. [2022-11-19 08:40:04,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9463 states, 6203 states have (on average 1.3724004513944865) internal successors, (8513), 6615 states have internal predecessors, (8513), 2746 states have call successors, (2746), 514 states have call predecessors, (2746), 513 states have return successors, (2769), 2693 states have call predecessors, (2769), 2745 states have call successors, (2769) [2022-11-19 08:40:04,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9463 states to 9463 states and 14028 transitions. [2022-11-19 08:40:04,705 INFO L78 Accepts]: Start accepts. Automaton has 9463 states and 14028 transitions. Word has length 173 [2022-11-19 08:40:04,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:40:04,706 INFO L495 AbstractCegarLoop]: Abstraction has 9463 states and 14028 transitions. [2022-11-19 08:40:04,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 08:40:04,707 INFO L276 IsEmpty]: Start isEmpty. Operand 9463 states and 14028 transitions. [2022-11-19 08:40:04,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-11-19 08:40:04,720 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:40:04,720 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:40:04,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:40:04,721 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:40:04,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:40:04,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1112547551, now seen corresponding path program 1 times [2022-11-19 08:40:04,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:40:04,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144159784] [2022-11-19 08:40:04,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:40:04,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:40:05,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:40:06,072 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-11-19 08:40:06,072 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:40:06,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144159784] [2022-11-19 08:40:06,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144159784] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:40:06,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:40:06,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:40:06,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149211410] [2022-11-19 08:40:06,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:40:06,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:40:06,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:40:06,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:40:06,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:40:06,075 INFO L87 Difference]: Start difference. First operand 9463 states and 14028 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 08:40:08,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:40:10,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:40:13,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:40:14,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:40:16,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:40:18,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:40:23,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:40:25,564 WARN L539 Checker$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 08:40:30,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:40:32,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:40:34,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:40:38,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:40:40,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:40:43,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:40:43,588 INFO L93 Difference]: Finished difference Result 27950 states and 42296 transitions. [2022-11-19 08:40:43,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:40:43,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 179 [2022-11-19 08:40:43,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:40:43,782 INFO L225 Difference]: With dead ends: 27950 [2022-11-19 08:40:43,782 INFO L226 Difference]: Without dead ends: 18514 [2022-11-19 08:40:43,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:40:43,850 INFO L413 NwaCegarLoop]: 4890 mSDtfsCounter, 3576 mSDsluCounter, 3401 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 3 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3578 SdHoareTripleChecker+Valid, 8291 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:40:43,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3578 Valid, 8291 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 792 Invalid, 9 Unknown, 0 Unchecked, 36.8s Time] [2022-11-19 08:40:43,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18514 states. [2022-11-19 08:40:45,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18514 to 18457. [2022-11-19 08:40:45,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18457 states, 12088 states have (on average 1.3693745863666447) internal successors, (16553), 12900 states have internal predecessors, (16553), 5359 states have call successors, (5359), 1006 states have call predecessors, (5359), 1009 states have return successors, (6313), 5262 states have call predecessors, (6313), 5358 states have call successors, (6313) [2022-11-19 08:40:45,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18457 states to 18457 states and 28225 transitions. [2022-11-19 08:40:45,278 INFO L78 Accepts]: Start accepts. Automaton has 18457 states and 28225 transitions. Word has length 179 [2022-11-19 08:40:45,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:40:45,280 INFO L495 AbstractCegarLoop]: Abstraction has 18457 states and 28225 transitions. [2022-11-19 08:40:45,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 08:40:45,280 INFO L276 IsEmpty]: Start isEmpty. Operand 18457 states and 28225 transitions. [2022-11-19 08:40:45,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-19 08:40:45,289 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:40:45,289 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 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] [2022-11-19 08:40:45,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:40:45,290 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:40:45,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:40:45,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1835825366, now seen corresponding path program 1 times [2022-11-19 08:40:45,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:40:45,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778217846] [2022-11-19 08:40:45,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:40:45,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:40:45,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:40:46,763 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-11-19 08:40:46,763 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:40:46,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778217846] [2022-11-19 08:40:46,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778217846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:40:46,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:40:46,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:40:46,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100339678] [2022-11-19 08:40:46,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:40:46,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:40:46,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:40:46,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:40:46,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:40:46,766 INFO L87 Difference]: Start difference. First operand 18457 states and 28225 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-19 08:40:48,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:40:51,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:40:53,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:40:55,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:40:56,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:40:58,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:41:01,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:41:04,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:41:08,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:41:10,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:41:14,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:41:16,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:41:18,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:41:18,039 INFO L93 Difference]: Finished difference Result 36999 states and 58400 transitions. [2022-11-19 08:41:18,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:41:18,040 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), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 178 [2022-11-19 08:41:18,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:41:18,171 INFO L225 Difference]: With dead ends: 36999 [2022-11-19 08:41:18,172 INFO L226 Difference]: Without dead ends: 18569 [2022-11-19 08:41:18,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:41:18,297 INFO L413 NwaCegarLoop]: 3355 mSDtfsCounter, 13 mSDsluCounter, 3349 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 3 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 6704 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:41:18,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 6704 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 630 Invalid, 8 Unknown, 0 Unchecked, 30.6s Time] [2022-11-19 08:41:18,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18569 states. [2022-11-19 08:41:19,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18569 to 18497. [2022-11-19 08:41:19,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18497 states, 12122 states have (on average 1.3693284936479129) internal successors, (16599), 12936 states have internal predecessors, (16599), 5363 states have call successors, (5363), 1006 states have call predecessors, (5363), 1011 states have return successors, (6319), 5266 states have call predecessors, (6319), 5362 states have call successors, (6319) [2022-11-19 08:41:19,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18497 states to 18497 states and 28281 transitions. [2022-11-19 08:41:19,462 INFO L78 Accepts]: Start accepts. Automaton has 18497 states and 28281 transitions. Word has length 178 [2022-11-19 08:41:19,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:41:19,464 INFO L495 AbstractCegarLoop]: Abstraction has 18497 states and 28281 transitions. [2022-11-19 08:41:19,465 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), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-19 08:41:19,465 INFO L276 IsEmpty]: Start isEmpty. Operand 18497 states and 28281 transitions. [2022-11-19 08:41:19,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-19 08:41:19,475 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:41:19,475 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 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] [2022-11-19 08:41:19,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:41:19,475 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:41:19,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:41:19,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1626531062, now seen corresponding path program 1 times [2022-11-19 08:41:19,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:41:19,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830631727] [2022-11-19 08:41:19,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:41:19,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:41:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:41:21,441 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-11-19 08:41:21,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:41:21,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830631727] [2022-11-19 08:41:21,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830631727] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:41:21,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:41:21,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:41:21,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705420888] [2022-11-19 08:41:21,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:41:21,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:41:21,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:41:21,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:41:21,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:41:21,443 INFO L87 Difference]: Start difference. First operand 18497 states and 28281 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, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-19 08:41:23,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:41:26,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:41:28,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:41:30,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:41:32,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:41:35,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:41:38,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:41:41,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:41:43,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:41:46,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:41:50,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:41:52,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:41:54,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:41:54,400 INFO L93 Difference]: Finished difference Result 36046 states and 58370 transitions. [2022-11-19 08:41:54,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:41:54,403 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, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 180 [2022-11-19 08:41:54,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:41:54,703 INFO L225 Difference]: With dead ends: 36046 [2022-11-19 08:41:54,703 INFO L226 Difference]: Without dead ends: 36043 [2022-11-19 08:41:54,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:41:54,730 INFO L413 NwaCegarLoop]: 4592 mSDtfsCounter, 3499 mSDsluCounter, 3397 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3504 SdHoareTripleChecker+Valid, 7989 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:41:54,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3504 Valid, 7989 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 673 Invalid, 8 Unknown, 0 Unchecked, 31.8s Time] [2022-11-19 08:41:54,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36043 states. [2022-11-19 08:41:56,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36043 to 35743. [2022-11-19 08:41:56,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35743 states, 23484 states have (on average 1.371699880769886) internal successors, (32213), 25104 states have internal predecessors, (32213), 10305 states have call successors, (10305), 1934 states have call predecessors, (10305), 1953 states have return successors, (15349), 10128 states have call predecessors, (15349), 10304 states have call successors, (15349) [2022-11-19 08:41:57,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35743 states to 35743 states and 57867 transitions. [2022-11-19 08:41:57,338 INFO L78 Accepts]: Start accepts. Automaton has 35743 states and 57867 transitions. Word has length 180 [2022-11-19 08:41:57,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:41:57,339 INFO L495 AbstractCegarLoop]: Abstraction has 35743 states and 57867 transitions. [2022-11-19 08:41:57,340 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, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-19 08:41:57,340 INFO L276 IsEmpty]: Start isEmpty. Operand 35743 states and 57867 transitions. [2022-11-19 08:41:57,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-11-19 08:41:57,409 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:41:57,410 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:41:57,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:41:57,410 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:41:57,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:41:57,411 INFO L85 PathProgramCache]: Analyzing trace with hash 804706423, now seen corresponding path program 1 times [2022-11-19 08:41:57,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:41:57,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890081762] [2022-11-19 08:41:57,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:41:57,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:41:58,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:42:01,781 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-11-19 08:42:01,781 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:42:01,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890081762] [2022-11-19 08:42:01,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890081762] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:42:01,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:42:01,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:42:01,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295733025] [2022-11-19 08:42:01,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:42:01,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:42:01,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:42:01,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:42:01,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:42:01,783 INFO L87 Difference]: Start difference. First operand 35743 states and 57867 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-19 08:42:03,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:42:06,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:42:08,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:42:11,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:42:13,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:42:15,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:42:16,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:42:20,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:42:26,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:42:29,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:42:31,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:42:34,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:42:34,099 INFO L93 Difference]: Finished difference Result 53294 states and 91023 transitions. [2022-11-19 08:42:34,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:42:34,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 217 [2022-11-19 08:42:34,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:42:34,816 INFO L225 Difference]: With dead ends: 53294 [2022-11-19 08:42:34,817 INFO L226 Difference]: Without dead ends: 53291 [2022-11-19 08:42:34,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:42:34,852 INFO L413 NwaCegarLoop]: 4511 mSDtfsCounter, 3476 mSDsluCounter, 3397 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3481 SdHoareTripleChecker+Valid, 7908 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:42:34,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3481 Valid, 7908 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 661 Invalid, 8 Unknown, 0 Unchecked, 30.6s Time] [2022-11-19 08:42:34,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53291 states. [2022-11-19 08:42:38,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53291 to 52992. [2022-11-19 08:42:38,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52992 states, 34848 states have (on average 1.372532139577594) internal successors, (47830), 37274 states have internal predecessors, (47830), 15248 states have call successors, (15248), 2862 states have call predecessors, (15248), 2895 states have return successors, (27444), 14991 states have call predecessors, (27444), 15247 states have call successors, (27444) [2022-11-19 08:42:39,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52992 states to 52992 states and 90522 transitions. [2022-11-19 08:42:39,491 INFO L78 Accepts]: Start accepts. Automaton has 52992 states and 90522 transitions. Word has length 217 [2022-11-19 08:42:39,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:42:39,492 INFO L495 AbstractCegarLoop]: Abstraction has 52992 states and 90522 transitions. [2022-11-19 08:42:39,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-19 08:42:39,492 INFO L276 IsEmpty]: Start isEmpty. Operand 52992 states and 90522 transitions. [2022-11-19 08:42:39,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-11-19 08:42:39,564 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:42:39,564 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:42:39,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 08:42:39,565 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:42:39,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:42:39,566 INFO L85 PathProgramCache]: Analyzing trace with hash -720262549, now seen corresponding path program 1 times [2022-11-19 08:42:39,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:42:39,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960254942] [2022-11-19 08:42:39,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:42:39,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:42:40,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:42:43,393 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-11-19 08:42:43,393 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:42:43,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960254942] [2022-11-19 08:42:43,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960254942] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:42:43,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:42:43,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:42:43,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638611827] [2022-11-19 08:42:43,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:42:43,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:42:43,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:42:43,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:42:43,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:42:43,396 INFO L87 Difference]: Start difference. First operand 52992 states and 90522 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-19 08:42:45,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:42:48,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:42:50,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:42:52,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:42:53,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:42:55,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:43:00,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:43:02,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:43:06,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:43:10,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:43:15,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:43:17,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:43:19,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:43:19,998 INFO L93 Difference]: Finished difference Result 87828 states and 165584 transitions. [2022-11-19 08:43:19,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:43:19,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 217 [2022-11-19 08:43:20,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:43:20,891 INFO L225 Difference]: With dead ends: 87828 [2022-11-19 08:43:20,891 INFO L226 Difference]: Without dead ends: 87825 [2022-11-19 08:43:20,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:43:20,947 INFO L413 NwaCegarLoop]: 4767 mSDtfsCounter, 3548 mSDsluCounter, 3397 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3553 SdHoareTripleChecker+Valid, 8164 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:43:20,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3553 Valid, 8164 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 675 Invalid, 9 Unknown, 0 Unchecked, 33.2s Time] [2022-11-19 08:43:21,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87825 states. [2022-11-19 08:43:26,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87825 to 87526. [2022-11-19 08:43:26,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87526 states, 57591 states have (on average 1.373218037540588) internal successors, (79085), 61629 states have internal predecessors, (79085), 25153 states have call successors, (25153), 4720 states have call predecessors, (25153), 4781 states have return successors, (60845), 24736 states have call predecessors, (60845), 25152 states have call successors, (60845) [2022-11-19 08:43:28,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87526 states to 87526 states and 165083 transitions. [2022-11-19 08:43:28,134 INFO L78 Accepts]: Start accepts. Automaton has 87526 states and 165083 transitions. Word has length 217 [2022-11-19 08:43:28,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:43:28,135 INFO L495 AbstractCegarLoop]: Abstraction has 87526 states and 165083 transitions. [2022-11-19 08:43:28,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-19 08:43:28,135 INFO L276 IsEmpty]: Start isEmpty. Operand 87526 states and 165083 transitions. [2022-11-19 08:43:28,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-11-19 08:43:28,196 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:43:28,197 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:43:28,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 08:43:28,197 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:43:28,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:43:28,198 INFO L85 PathProgramCache]: Analyzing trace with hash -2053567878, now seen corresponding path program 1 times [2022-11-19 08:43:28,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:43:28,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618994190] [2022-11-19 08:43:28,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:43:28,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:43:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:43:30,314 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-11-19 08:43:30,315 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:43:30,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618994190] [2022-11-19 08:43:30,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618994190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:43:30,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:43:30,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:43:30,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969891967] [2022-11-19 08:43:30,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:43:30,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:43:30,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:43:30,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:43:30,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:43:30,317 INFO L87 Difference]: Start difference. First operand 87526 states and 165083 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-19 08:43:32,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:43:36,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:43:38,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:43:40,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:43:42,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:43:44,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:43:46,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:43:47,374 WARN L539 Checker$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 08:43:49,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:43:51,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:43:53,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:43:55,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:43:58,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:44:03,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:44:08,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:44:10,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:44:14,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:44:18,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:44:23,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:44:27,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:44:33,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:44:33,888 INFO L93 Difference]: Finished difference Result 245350 states and 483661 transitions. [2022-11-19 08:44:33,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:44:33,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 214 [2022-11-19 08:44:33,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:44:35,981 INFO L225 Difference]: With dead ends: 245350 [2022-11-19 08:44:35,981 INFO L226 Difference]: Without dead ends: 157851 [2022-11-19 08:44:37,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:44:37,073 INFO L413 NwaCegarLoop]: 4379 mSDtfsCounter, 3539 mSDsluCounter, 12188 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 5 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3546 SdHoareTripleChecker+Valid, 16567 SdHoareTripleChecker+Invalid, 1393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:44:37,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3546 Valid, 16567 Invalid, 1393 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 1376 Invalid, 12 Unknown, 0 Unchecked, 54.0s Time] [2022-11-19 08:44:37,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157851 states. [2022-11-19 08:44:48,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157851 to 157525. [2022-11-19 08:44:49,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157525 states, 103668 states have (on average 1.3726608017903306) internal successors, (142301), 111074 states have internal predecessors, (142301), 45179 states have call successors, (45179), 8504 states have call predecessors, (45179), 8677 states have return successors, (130331), 44290 states have call predecessors, (130331), 45178 states have call successors, (130331) [2022-11-19 08:44:52,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157525 states to 157525 states and 317811 transitions. [2022-11-19 08:44:52,090 INFO L78 Accepts]: Start accepts. Automaton has 157525 states and 317811 transitions. Word has length 214 [2022-11-19 08:44:52,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:44:52,091 INFO L495 AbstractCegarLoop]: Abstraction has 157525 states and 317811 transitions. [2022-11-19 08:44:52,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-19 08:44:52,092 INFO L276 IsEmpty]: Start isEmpty. Operand 157525 states and 317811 transitions. [2022-11-19 08:44:52,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-11-19 08:44:52,178 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:44:52,179 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:44:52,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 08:44:52,179 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:44:52,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:44:52,180 INFO L85 PathProgramCache]: Analyzing trace with hash -2007137461, now seen corresponding path program 1 times [2022-11-19 08:44:52,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:44:52,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688632845] [2022-11-19 08:44:52,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:44:52,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:44:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:44:54,547 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-11-19 08:44:54,547 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:44:54,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688632845] [2022-11-19 08:44:54,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688632845] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:44:54,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:44:54,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:44:54,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080502131] [2022-11-19 08:44:54,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:44:54,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:44:54,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:44:54,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:44:54,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:44:54,550 INFO L87 Difference]: Start difference. First operand 157525 states and 317811 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-19 08:44:56,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:45:00,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:45:02,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:45:04,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:45:07,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:45:09,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:45:11,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:45:13,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:45:15,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:45:17,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:45:19,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []