./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da73ee9d-9aa5-4400-b09f-0ee774eb3eea/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da73ee9d-9aa5-4400-b09f-0ee774eb3eea/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da73ee9d-9aa5-4400-b09f-0ee774eb3eea/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da73ee9d-9aa5-4400-b09f-0ee774eb3eea/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da73ee9d-9aa5-4400-b09f-0ee774eb3eea/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da73ee9d-9aa5-4400-b09f-0ee774eb3eea/bin/utaipan-7li7fVZpFI --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 0991342cd9e67cbadb964d86a1516812eb3aa45e84d4674c09b8e10a19f475c1 --- 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-5e519f3 [2022-11-03 02:04:36,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:04:36,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:04:36,121 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:04:36,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:04:36,123 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:04:36,124 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:04:36,126 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:04:36,128 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:04:36,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:04:36,130 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:04:36,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:04:36,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:04:36,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:04:36,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:04:36,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:04:36,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:04:36,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:04:36,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:04:36,142 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:04:36,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:04:36,146 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:04:36,147 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:04:36,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:04:36,152 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:04:36,153 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:04:36,153 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:04:36,154 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:04:36,155 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:04:36,156 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:04:36,157 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:04:36,158 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:04:36,159 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:04:36,160 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:04:36,161 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:04:36,161 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:04:36,162 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:04:36,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:04:36,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:04:36,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:04:36,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:04:36,166 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da73ee9d-9aa5-4400-b09f-0ee774eb3eea/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:04:36,205 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:04:36,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:04:36,211 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:04:36,211 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:04:36,212 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:04:36,213 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:04:36,213 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:04:36,213 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:04:36,214 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:04:36,214 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:04:36,215 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:04:36,215 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:04:36,215 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:04:36,216 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:04:36,216 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:04:36,216 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:04:36,216 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:04:36,217 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:04:36,217 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:04:36,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:04:36,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:04:36,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:04:36,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:04:36,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:04:36,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:04:36,219 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:04:36,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:04:36,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:04:36,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:04:36,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:04:36,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:04:36,221 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:04:36,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:04:36,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:04:36,222 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:04:36,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:04:36,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:04:36,222 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:04:36,222 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_da73ee9d-9aa5-4400-b09f-0ee774eb3eea/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da73ee9d-9aa5-4400-b09f-0ee774eb3eea/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0991342cd9e67cbadb964d86a1516812eb3aa45e84d4674c09b8e10a19f475c1 [2022-11-03 02:04:36,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:04:36,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:04:36,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:04:36,559 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:04:36,560 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:04:36,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da73ee9d-9aa5-4400-b09f-0ee774eb3eea/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2022-11-03 02:04:36,626 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da73ee9d-9aa5-4400-b09f-0ee774eb3eea/bin/utaipan-7li7fVZpFI/data/94e901caf/7e399035837e451d956b71db95a260ca/FLAGec3a06727 [2022-11-03 02:04:37,791 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:04:37,792 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da73ee9d-9aa5-4400-b09f-0ee774eb3eea/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2022-11-03 02:04:37,838 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da73ee9d-9aa5-4400-b09f-0ee774eb3eea/bin/utaipan-7li7fVZpFI/data/94e901caf/7e399035837e451d956b71db95a260ca/FLAGec3a06727 [2022-11-03 02:04:38,100 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da73ee9d-9aa5-4400-b09f-0ee774eb3eea/bin/utaipan-7li7fVZpFI/data/94e901caf/7e399035837e451d956b71db95a260ca [2022-11-03 02:04:38,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:04:38,105 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:04:38,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:04:38,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:04:38,111 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:04:38,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:04:38" (1/1) ... [2022-11-03 02:04:38,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1572498d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:04:38, skipping insertion in model container [2022-11-03 02:04:38,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:04:38" (1/1) ... [2022-11-03 02:04:38,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:04:38,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:04:41,433 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da73ee9d-9aa5-4400-b09f-0ee774eb3eea/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i[339370,339383] [2022-11-03 02:04:41,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:04:41,647 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:04:42,188 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da73ee9d-9aa5-4400-b09f-0ee774eb3eea/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i[339370,339383] [2022-11-03 02:04:42,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:04:42,333 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:04:42,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:04:42 WrapperNode [2022-11-03 02:04:42,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:04:42,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:04:42,336 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:04:42,336 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:04:42,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:04:42" (1/1) ... [2022-11-03 02:04:42,490 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:04:42" (1/1) ... [2022-11-03 02:04:42,774 INFO L138 Inliner]: procedures = 326, calls = 4469, calls flagged for inlining = 131, calls inlined = 121, statements flattened = 8803 [2022-11-03 02:04:42,775 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:04:42,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:04:42,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:04:42,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:04:42,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:04:42" (1/1) ... [2022-11-03 02:04:42,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:04:42" (1/1) ... [2022-11-03 02:04:42,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:04:42" (1/1) ... [2022-11-03 02:04:42,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:04:42" (1/1) ... [2022-11-03 02:04:43,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:04:42" (1/1) ... [2022-11-03 02:04:43,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:04:42" (1/1) ... [2022-11-03 02:04:43,276 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:04:42" (1/1) ... [2022-11-03 02:04:43,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:04:42" (1/1) ... [2022-11-03 02:04:43,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:04:43,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:04:43,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:04:43,368 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:04:43,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:04:42" (1/1) ... [2022-11-03 02:04:43,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:04:43,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da73ee9d-9aa5-4400-b09f-0ee774eb3eea/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:04:43,405 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da73ee9d-9aa5-4400-b09f-0ee774eb3eea/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:04:43,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da73ee9d-9aa5-4400-b09f-0ee774eb3eea/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:04:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_ohci [2022-11-03 02:04:43,554 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_ohci [2022-11-03 02:04:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-03 02:04:43,554 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-03 02:04:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-11-03 02:04:43,554 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-11-03 02:04:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2022-11-03 02:04:43,555 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2022-11-03 02:04:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure start_ed_unlink [2022-11-03 02:04:43,555 INFO L138 BoogieDeclarations]: Found implementation of procedure start_ed_unlink [2022-11-03 02:04:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_status [2022-11-03 02:04:43,555 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_status [2022-11-03 02:04:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-11-03 02:04:43,555 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-11-03 02:04:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_suspend [2022-11-03 02:04:43,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_suspend [2022-11-03 02:04:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_alloc [2022-11-03 02:04:43,556 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_alloc [2022-11-03 02:04:43,556 INFO L130 BoogieDeclarations]: Found specification of procedure show_list [2022-11-03 02:04:43,556 INFO L138 BoogieDeclarations]: Found implementation of procedure show_list [2022-11-03 02:04:43,556 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_probe [2022-11-03 02:04:43,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_probe [2022-11-03 02:04:43,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:04:43,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:04:43,556 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-11-03 02:04:43,556 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-11-03 02:04:43,556 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpup [2022-11-03 02:04:43,556 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpup [2022-11-03 02:04:43,557 INFO L130 BoogieDeclarations]: Found specification of procedure hcfs2string [2022-11-03 02:04:43,557 INFO L138 BoogieDeclarations]: Found implementation of procedure hcfs2string [2022-11-03 02:04:43,557 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_zfmicro [2022-11-03 02:04:43,557 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_zfmicro [2022-11-03 02:04:43,557 INFO L130 BoogieDeclarations]: Found specification of procedure usb_disabled [2022-11-03 02:04:43,557 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_disabled [2022-11-03 02:04:43,557 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_status_data [2022-11-03 02:04:43,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_status_data [2022-11-03 02:04:43,559 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_reset [2022-11-03 02:04:43,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_reset [2022-11-03 02:04:43,559 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_shutdown [2022-11-03 02:04:43,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_shutdown [2022-11-03 02:04:43,559 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 02:04:43,559 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 02:04:43,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 02:04:43,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 02:04:43,560 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_intr_mask [2022-11-03 02:04:43,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_intr_mask [2022-11-03 02:04:43,561 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_buffer [2022-11-03 02:04:43,561 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_buffer [2022-11-03 02:04:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_writel [2022-11-03 02:04:43,562 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_writel [2022-11-03 02:04:43,563 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 02:04:43,563 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 02:04:43,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 02:04:43,563 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 02:04:43,563 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hwPSWp [2022-11-03 02:04:43,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hwPSWp [2022-11-03 02:04:43,564 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_resume [2022-11-03 02:04:43,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_resume [2022-11-03 02:04:43,564 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_suspend [2022-11-03 02:04:43,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_suspend [2022-11-03 02:04:43,565 INFO L130 BoogieDeclarations]: Found specification of procedure debug_output [2022-11-03 02:04:43,565 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_output [2022-11-03 02:04:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-03 02:04:43,566 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-03 02:04:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 02:04:43,566 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 02:04:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure ed_schedule [2022-11-03 02:04:43,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_schedule [2022-11-03 02:04:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hcd_init [2022-11-03 02:04:43,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hcd_init [2022-11-03 02:04:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_roothub [2022-11-03 02:04:43,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_roothub [2022-11-03 02:04:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2022-11-03 02:04:43,567 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2022-11-03 02:04:43,567 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-03 02:04:43,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-03 02:04:43,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:04:43,569 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_stop [2022-11-03 02:04:43,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_stop [2022-11-03 02:04:43,569 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 02:04:43,569 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 02:04:43,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:04:43,570 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2022-11-03 02:04:43,570 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2022-11-03 02:04:43,570 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_remove [2022-11-03 02:04:43,571 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_remove [2022-11-03 02:04:43,571 INFO L130 BoogieDeclarations]: Found specification of procedure check_ed [2022-11-03 02:04:43,571 INFO L138 BoogieDeclarations]: Found implementation of procedure check_ed [2022-11-03 02:04:43,572 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_restart [2022-11-03 02:04:43,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_restart [2022-11-03 02:04:43,572 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_nec [2022-11-03 02:04:43,572 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_nec [2022-11-03 02:04:43,573 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 02:04:43,573 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 02:04:43,573 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2022-11-03 02:04:43,574 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2022-11-03 02:04:43,574 INFO L130 BoogieDeclarations]: Found specification of procedure td_free [2022-11-03 02:04:43,574 INFO L138 BoogieDeclarations]: Found implementation of procedure td_free [2022-11-03 02:04:43,574 INFO L130 BoogieDeclarations]: Found specification of procedure broken_suspend [2022-11-03 02:04:43,574 INFO L138 BoogieDeclarations]: Found implementation of procedure broken_suspend [2022-11-03 02:04:43,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:04:43,574 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_resume [2022-11-03 02:04:43,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_resume [2022-11-03 02:04:43,575 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_platform_shutdown [2022-11-03 02:04:43,575 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_platform_shutdown [2022-11-03 02:04:43,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:04:43,576 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_portstatus [2022-11-03 02:04:43,576 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_portstatus [2022-11-03 02:04:43,576 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-03 02:04:43,577 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-03 02:04:43,578 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hc_died [2022-11-03 02:04:43,580 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hc_died [2022-11-03 02:04:43,580 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_remove [2022-11-03 02:04:43,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_remove [2022-11-03 02:04:43,581 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-11-03 02:04:43,581 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-11-03 02:04:43,582 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-03 02:04:43,583 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-03 02:04:43,584 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-11-03 02:04:43,584 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-11-03 02:04:43,589 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 02:04:43,589 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 02:04:43,589 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 02:04:43,589 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 02:04:43,589 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 02:04:43,589 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 02:04:43,589 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_resume [2022-11-03 02:04:43,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_resume [2022-11-03 02:04:43,590 INFO L130 BoogieDeclarations]: Found specification of procedure ed_free [2022-11-03 02:04:43,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_free [2022-11-03 02:04:43,590 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 02:04:43,590 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 02:04:43,590 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2022-11-03 02:04:43,590 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2022-11-03 02:04:43,591 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_start [2022-11-03 02:04:43,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_start [2022-11-03 02:04:43,591 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump [2022-11-03 02:04:43,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump [2022-11-03 02:04:43,591 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_frame_no [2022-11-03 02:04:43,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_frame_no [2022-11-03 02:04:43,591 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 02:04:43,591 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 02:04:43,592 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-03 02:04:43,592 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-03 02:04:43,592 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-03 02:04:43,592 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-03 02:04:43,592 INFO L130 BoogieDeclarations]: Found specification of procedure sb800_prefetch [2022-11-03 02:04:43,592 INFO L138 BoogieDeclarations]: Found implementation of procedure sb800_prefetch [2022-11-03 02:04:43,592 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_control [2022-11-03 02:04:43,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_control [2022-11-03 02:04:43,593 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2022-11-03 02:04:43,593 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2022-11-03 02:04:43,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:04:43,593 INFO L130 BoogieDeclarations]: Found specification of procedure finish_urb [2022-11-03 02:04:43,593 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_urb [2022-11-03 02:04:43,593 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_suspend [2022-11-03 02:04:43,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_suspend [2022-11-03 02:04:43,593 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_a [2022-11-03 02:04:43,594 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_a [2022-11-03 02:04:43,594 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_irq [2022-11-03 02:04:43,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_irq [2022-11-03 02:04:43,594 INFO L130 BoogieDeclarations]: Found specification of procedure rh_state_string [2022-11-03 02:04:43,594 INFO L138 BoogieDeclarations]: Found implementation of procedure rh_state_string [2022-11-03 02:04:43,594 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_b [2022-11-03 02:04:43,594 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_b [2022-11-03 02:04:43,594 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_enqueue [2022-11-03 02:04:43,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_enqueue [2022-11-03 02:04:43,595 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_start_port_reset [2022-11-03 02:04:43,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_start_port_reset [2022-11-03 02:04:43,595 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_to_hcd [2022-11-03 02:04:43,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_to_hcd [2022-11-03 02:04:43,595 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_start [2022-11-03 02:04:43,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_start [2022-11-03 02:04:43,595 INFO L130 BoogieDeclarations]: Found specification of procedure td_alloc [2022-11-03 02:04:43,596 INFO L138 BoogieDeclarations]: Found implementation of procedure td_alloc [2022-11-03 02:04:43,596 INFO L130 BoogieDeclarations]: Found specification of procedure find_head [2022-11-03 02:04:43,596 INFO L138 BoogieDeclarations]: Found implementation of procedure find_head [2022-11-03 02:04:43,596 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:04:43,596 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:04:43,596 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_run [2022-11-03 02:04:43,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_run [2022-11-03 02:04:43,596 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-11-03 02:04:43,597 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-11-03 02:04:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_endpoint_disable [2022-11-03 02:04:43,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_endpoint_disable [2022-11-03 02:04:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:04:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure takeback_td [2022-11-03 02:04:43,597 INFO L138 BoogieDeclarations]: Found implementation of procedure takeback_td [2022-11-03 02:04:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdprefetch [2022-11-03 02:04:43,597 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdprefetch [2022-11-03 02:04:43,598 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-03 02:04:43,598 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-03 02:04:43,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:04:43,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:04:43,598 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_readl [2022-11-03 02:04:43,598 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_readl [2022-11-03 02:04:43,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:04:43,598 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2022-11-03 02:04:43,598 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2022-11-03 02:04:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure dl_done_list [2022-11-03 02:04:43,599 INFO L138 BoogieDeclarations]: Found implementation of procedure dl_done_list [2022-11-03 02:04:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_poll_rh_status [2022-11-03 02:04:43,599 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_poll_rh_status [2022-11-03 02:04:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-03 02:04:43,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-03 02:04:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:04:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_reinit [2022-11-03 02:04:43,600 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_reinit [2022-11-03 02:04:43,600 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2022-11-03 02:04:43,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2022-11-03 02:04:43,600 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 02:04:43,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 02:04:43,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:04:43,600 INFO L130 BoogieDeclarations]: Found specification of procedure td_done [2022-11-03 02:04:43,600 INFO L138 BoogieDeclarations]: Found implementation of procedure td_done [2022-11-03 02:04:43,601 INFO L130 BoogieDeclarations]: Found specification of procedure td_fill [2022-11-03 02:04:43,601 INFO L138 BoogieDeclarations]: Found implementation of procedure td_fill [2022-11-03 02:04:43,601 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_dequeue [2022-11-03 02:04:43,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_dequeue [2022-11-03 02:04:43,601 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:04:43,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:04:43,601 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_init [2022-11-03 02:04:43,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_init [2022-11-03 02:04:43,602 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-03 02:04:43,602 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-03 02:04:43,602 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc16 [2022-11-03 02:04:43,602 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc16 [2022-11-03 02:04:43,602 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:04:43,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:04:43,602 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdiso [2022-11-03 02:04:43,602 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdiso [2022-11-03 02:04:43,602 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2022-11-03 02:04:43,603 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2022-11-03 02:04:43,603 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-03 02:04:43,603 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-03 02:04:43,603 INFO L130 BoogieDeclarations]: Found specification of procedure ed_deschedule [2022-11-03 02:04:43,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_deschedule [2022-11-03 02:04:43,603 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_resume_root_hub [2022-11-03 02:04:43,603 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_resume_root_hub [2022-11-03 02:04:43,603 INFO L130 BoogieDeclarations]: Found specification of procedure urb_free_priv [2022-11-03 02:04:43,604 INFO L138 BoogieDeclarations]: Found implementation of procedure urb_free_priv [2022-11-03 02:04:43,604 INFO L130 BoogieDeclarations]: Found specification of procedure finish_unlinks [2022-11-03 02:04:43,604 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_unlinks [2022-11-03 02:04:43,604 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpu [2022-11-03 02:04:43,604 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpu [2022-11-03 02:04:43,604 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2022-11-03 02:04:43,604 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2022-11-03 02:04:43,604 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_status [2022-11-03 02:04:43,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_status [2022-11-03 02:04:43,604 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_print_eds [2022-11-03 02:04:43,605 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_print_eds [2022-11-03 02:04:43,605 INFO L130 BoogieDeclarations]: Found specification of procedure debug_close [2022-11-03 02:04:43,605 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_close [2022-11-03 02:04:43,605 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_get_frame [2022-11-03 02:04:43,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_get_frame [2022-11-03 02:04:43,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2022-11-03 02:04:43,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2022-11-03 02:04:43,605 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 02:04:43,605 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 02:04:43,605 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-03 02:04:43,606 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-03 02:04:43,606 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc32 [2022-11-03 02:04:43,606 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc32 [2022-11-03 02:04:43,606 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 02:04:43,606 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 02:04:43,606 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_usb_reset [2022-11-03 02:04:43,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_usb_reset [2022-11-03 02:04:43,606 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_resume [2022-11-03 02:04:43,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_resume [2022-11-03 02:04:43,607 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-03 02:04:43,607 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-03 02:04:43,607 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 02:04:43,607 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 02:04:43,607 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_suspend [2022-11-03 02:04:43,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_suspend [2022-11-03 02:04:43,607 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_reset [2022-11-03 02:04:43,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_reset [2022-11-03 02:04:43,607 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_shutdown [2022-11-03 02:04:43,607 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_shutdown [2022-11-03 02:04:43,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:04:43,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:04:43,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:04:43,608 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2022-11-03 02:04:43,608 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2022-11-03 02:04:44,936 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:04:44,944 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:04:55,385 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:04:58,752 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:04:58,752 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-03 02:04:58,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:04:58 BoogieIcfgContainer [2022-11-03 02:04:58,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:04:58,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:04:58,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:04:58,765 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:04:58,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:04:38" (1/3) ... [2022-11-03 02:04:58,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78a9db2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:04:58, skipping insertion in model container [2022-11-03 02:04:58,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:04:42" (2/3) ... [2022-11-03 02:04:58,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78a9db2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:04:58, skipping insertion in model container [2022-11-03 02:04:58,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:04:58" (3/3) ... [2022-11-03 02:04:58,771 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2022-11-03 02:04:58,791 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:04:58,792 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:04:58,930 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:04:58,938 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;@3b37b5d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:04:58,938 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:04:58,952 INFO L276 IsEmpty]: Start isEmpty. Operand has 2671 states, 1689 states have (on average 1.3718176435760805) internal successors, (2317), 1760 states have internal predecessors, (2317), 848 states have call successors, (848), 136 states have call predecessors, (848), 136 states have return successors, (848), 839 states have call predecessors, (848), 848 states have call successors, (848) [2022-11-03 02:04:58,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 02:04:58,964 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:04:58,964 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:04:58,965 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:04:58,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:04:58,973 INFO L85 PathProgramCache]: Analyzing trace with hash 450264809, now seen corresponding path program 1 times [2022-11-03 02:04:58,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:04:58,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807391951] [2022-11-03 02:04:58,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:04:58,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:04:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:05:00,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:05:00,098 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:05:00,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807391951] [2022-11-03 02:05:00,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807391951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:05:00,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:05:00,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:05:00,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698063331] [2022-11-03 02:05:00,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:05:00,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:05:00,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:05:00,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:05:00,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:05:00,157 INFO L87 Difference]: Start difference. First operand has 2671 states, 1689 states have (on average 1.3718176435760805) internal successors, (2317), 1760 states have internal predecessors, (2317), 848 states have call successors, (848), 136 states have call predecessors, (848), 136 states have return successors, (848), 839 states have call predecessors, (848), 848 states have call successors, (848) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:05:03,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:05:06,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:05:06,974 INFO L93 Difference]: Finished difference Result 7949 states and 12102 transitions. [2022-11-03 02:05:06,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:05:06,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-03 02:05:06,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:05:07,083 INFO L225 Difference]: With dead ends: 7949 [2022-11-03 02:05:07,084 INFO L226 Difference]: Without dead ends: 5273 [2022-11-03 02:05:07,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:05:07,128 INFO L413 NwaCegarLoop]: 4682 mSDtfsCounter, 3914 mSDsluCounter, 3965 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3920 SdHoareTripleChecker+Valid, 8318 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:05:07,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3920 Valid, 8318 Invalid, 702 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 700 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-11-03 02:05:07,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5273 states. [2022-11-03 02:05:07,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5273 to 5257. [2022-11-03 02:05:07,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5257 states, 3315 states have (on average 1.3689291101055807) internal successors, (4538), 3448 states have internal predecessors, (4538), 1671 states have call successors, (1671), 271 states have call predecessors, (1671), 270 states have return successors, (1671), 1645 states have call predecessors, (1671), 1665 states have call successors, (1671) [2022-11-03 02:05:07,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 7880 transitions. [2022-11-03 02:05:07,729 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 7880 transitions. Word has length 12 [2022-11-03 02:05:07,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:05:07,730 INFO L495 AbstractCegarLoop]: Abstraction has 5257 states and 7880 transitions. [2022-11-03 02:05:07,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:05:07,730 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 7880 transitions. [2022-11-03 02:05:07,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-03 02:05:07,743 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:05:07,743 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:05:07,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:05:07,745 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:05:07,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:05:07,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1108997819, now seen corresponding path program 1 times [2022-11-03 02:05:07,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:05:07,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840190595] [2022-11-03 02:05:07,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:05:07,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:05:07,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:05:08,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:05:08,264 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:05:08,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840190595] [2022-11-03 02:05:08,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840190595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:05:08,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:05:08,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:05:08,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074468909] [2022-11-03 02:05:08,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:05:08,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:05:08,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:05:08,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:05:08,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:05:08,274 INFO L87 Difference]: Start difference. First operand 5257 states and 7880 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:05:12,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:05:12,307 INFO L93 Difference]: Finished difference Result 15736 states and 23580 transitions. [2022-11-03 02:05:12,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:05:12,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-03 02:05:12,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:05:12,404 INFO L225 Difference]: With dead ends: 15736 [2022-11-03 02:05:12,404 INFO L226 Difference]: Without dead ends: 10480 [2022-11-03 02:05:12,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:05:12,447 INFO L413 NwaCegarLoop]: 4682 mSDtfsCounter, 3941 mSDsluCounter, 3962 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3941 SdHoareTripleChecker+Valid, 8315 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:05:12,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3941 Valid, 8315 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-03 02:05:12,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10480 states. [2022-11-03 02:05:13,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10480 to 10464. [2022-11-03 02:05:13,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10464 states, 6595 states have (on average 1.3675511751326763) internal successors, (9019), 6858 states have internal predecessors, (9019), 3328 states have call successors, (3328), 541 states have call predecessors, (3328), 540 states have return successors, (3334), 3280 states have call predecessors, (3334), 3322 states have call successors, (3334) [2022-11-03 02:05:13,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10464 states to 10464 states and 15681 transitions. [2022-11-03 02:05:13,154 INFO L78 Accepts]: Start accepts. Automaton has 10464 states and 15681 transitions. Word has length 14 [2022-11-03 02:05:13,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:05:13,155 INFO L495 AbstractCegarLoop]: Abstraction has 10464 states and 15681 transitions. [2022-11-03 02:05:13,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:05:13,156 INFO L276 IsEmpty]: Start isEmpty. Operand 10464 states and 15681 transitions. [2022-11-03 02:05:13,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 02:05:13,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:05:13,158 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:05:13,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:05:13,159 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:05:13,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:05:13,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1069301509, now seen corresponding path program 1 times [2022-11-03 02:05:13,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:05:13,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536345844] [2022-11-03 02:05:13,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:05:13,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:05:13,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:05:13,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:05:13,632 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:05:13,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536345844] [2022-11-03 02:05:13,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536345844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:05:13,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:05:13,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:05:13,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316762734] [2022-11-03 02:05:13,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:05:13,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:05:13,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:05:13,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:05:13,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:05:13,641 INFO L87 Difference]: Start difference. First operand 10464 states and 15681 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:05:17,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:05:17,902 INFO L93 Difference]: Finished difference Result 31286 states and 46881 transitions. [2022-11-03 02:05:17,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:05:17,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-03 02:05:17,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:05:18,115 INFO L225 Difference]: With dead ends: 31286 [2022-11-03 02:05:18,115 INFO L226 Difference]: Without dead ends: 20823 [2022-11-03 02:05:18,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:05:18,200 INFO L413 NwaCegarLoop]: 4713 mSDtfsCounter, 3939 mSDsluCounter, 3962 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3939 SdHoareTripleChecker+Valid, 8346 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:05:18,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3939 Valid, 8346 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-03 02:05:18,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20823 states. [2022-11-03 02:05:19,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20823 to 20807. [2022-11-03 02:05:19,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20807 states, 13107 states have (on average 1.3663691157396811) internal successors, (17909), 13629 states have internal predecessors, (17909), 6626 states have call successors, (6626), 1074 states have call predecessors, (6626), 1073 states have return successors, (6644), 6534 states have call predecessors, (6644), 6620 states have call successors, (6644) [2022-11-03 02:05:19,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20807 states to 20807 states and 31179 transitions. [2022-11-03 02:05:19,647 INFO L78 Accepts]: Start accepts. Automaton has 20807 states and 31179 transitions. Word has length 16 [2022-11-03 02:05:19,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:05:19,647 INFO L495 AbstractCegarLoop]: Abstraction has 20807 states and 31179 transitions. [2022-11-03 02:05:19,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:05:19,648 INFO L276 IsEmpty]: Start isEmpty. Operand 20807 states and 31179 transitions. [2022-11-03 02:05:19,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-03 02:05:19,652 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:05:19,652 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:05:19,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:05:19,653 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:05:19,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:05:19,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1527170334, now seen corresponding path program 1 times [2022-11-03 02:05:19,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:05:19,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437924228] [2022-11-03 02:05:19,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:05:19,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:05:19,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:05:20,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:05:20,316 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:05:20,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437924228] [2022-11-03 02:05:20,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437924228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:05:20,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:05:20,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:05:20,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410327741] [2022-11-03 02:05:20,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:05:20,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:05:20,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:05:20,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:05:20,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:05:20,319 INFO L87 Difference]: Start difference. First operand 20807 states and 31179 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:05:23,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:05:23,031 INFO L93 Difference]: Finished difference Result 20809 states and 31180 transitions. [2022-11-03 02:05:23,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:05:23,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-11-03 02:05:23,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:05:23,167 INFO L225 Difference]: With dead ends: 20809 [2022-11-03 02:05:23,167 INFO L226 Difference]: Without dead ends: 20806 [2022-11-03 02:05:23,183 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 [2022-11-03 02:05:23,185 INFO L413 NwaCegarLoop]: 3643 mSDtfsCounter, 3956 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3956 SdHoareTripleChecker+Valid, 3643 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:05:23,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3956 Valid, 3643 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-03 02:05:23,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20806 states. [2022-11-03 02:05:24,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20806 to 20806. [2022-11-03 02:05:24,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20806 states, 13107 states have (on average 1.3662928206301976) internal successors, (17908), 13628 states have internal predecessors, (17908), 6625 states have call successors, (6625), 1074 states have call predecessors, (6625), 1073 states have return successors, (6644), 6534 states have call predecessors, (6644), 6620 states have call successors, (6644) [2022-11-03 02:05:24,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20806 states to 20806 states and 31177 transitions. [2022-11-03 02:05:24,906 INFO L78 Accepts]: Start accepts. Automaton has 20806 states and 31177 transitions. Word has length 25 [2022-11-03 02:05:24,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:05:24,906 INFO L495 AbstractCegarLoop]: Abstraction has 20806 states and 31177 transitions. [2022-11-03 02:05:24,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:05:24,907 INFO L276 IsEmpty]: Start isEmpty. Operand 20806 states and 31177 transitions. [2022-11-03 02:05:24,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-03 02:05:24,912 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:05:24,912 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:05:24,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:05:24,912 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:05:24,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:05:24,913 INFO L85 PathProgramCache]: Analyzing trace with hash 96153969, now seen corresponding path program 1 times [2022-11-03 02:05:24,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:05:24,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026178196] [2022-11-03 02:05:24,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:05:24,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:05:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:05:25,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:05:25,521 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:05:25,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026178196] [2022-11-03 02:05:25,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026178196] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:05:25,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:05:25,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:05:25,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612137757] [2022-11-03 02:05:25,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:05:25,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:05:25,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:05:25,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:05:25,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:05:25,524 INFO L87 Difference]: Start difference. First operand 20806 states and 31177 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:05:28,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:05:28,486 INFO L93 Difference]: Finished difference Result 20808 states and 31178 transitions. [2022-11-03 02:05:28,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:05:28,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-11-03 02:05:28,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:05:28,637 INFO L225 Difference]: With dead ends: 20808 [2022-11-03 02:05:28,637 INFO L226 Difference]: Without dead ends: 20805 [2022-11-03 02:05:28,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:05:28,656 INFO L413 NwaCegarLoop]: 3641 mSDtfsCounter, 3953 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3953 SdHoareTripleChecker+Valid, 3641 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:05:28,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3953 Valid, 3641 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-03 02:05:28,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20805 states. [2022-11-03 02:05:30,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20805 to 20805. [2022-11-03 02:05:30,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20805 states, 13107 states have (on average 1.3662165255207142) internal successors, (17907), 13627 states have internal predecessors, (17907), 6624 states have call successors, (6624), 1074 states have call predecessors, (6624), 1073 states have return successors, (6644), 6534 states have call predecessors, (6644), 6620 states have call successors, (6644) [2022-11-03 02:05:30,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20805 states to 20805 states and 31175 transitions. [2022-11-03 02:05:30,233 INFO L78 Accepts]: Start accepts. Automaton has 20805 states and 31175 transitions. Word has length 26 [2022-11-03 02:05:30,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:05:30,234 INFO L495 AbstractCegarLoop]: Abstraction has 20805 states and 31175 transitions. [2022-11-03 02:05:30,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:05:30,234 INFO L276 IsEmpty]: Start isEmpty. Operand 20805 states and 31175 transitions. [2022-11-03 02:05:30,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-03 02:05:30,239 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:05:30,239 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:05:30,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:05:30,239 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:05:30,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:05:30,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1315675519, now seen corresponding path program 1 times [2022-11-03 02:05:30,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:05:30,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606865399] [2022-11-03 02:05:30,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:05:30,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:05:30,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:05:30,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:05:30,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:05:30,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606865399] [2022-11-03 02:05:30,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606865399] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:05:30,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:05:30,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:05:30,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859862215] [2022-11-03 02:05:30,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:05:30,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:05:30,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:05:30,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:05:30,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:05:30,681 INFO L87 Difference]: Start difference. First operand 20805 states and 31175 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:05:34,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:05:34,656 INFO L93 Difference]: Finished difference Result 32149 states and 47487 transitions. [2022-11-03 02:05:34,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:05:34,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2022-11-03 02:05:34,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:05:34,834 INFO L225 Difference]: With dead ends: 32149 [2022-11-03 02:05:34,834 INFO L226 Difference]: Without dead ends: 32145 [2022-11-03 02:05:34,852 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 [2022-11-03 02:05:34,854 INFO L413 NwaCegarLoop]: 4349 mSDtfsCounter, 3925 mSDsluCounter, 2350 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3925 SdHoareTripleChecker+Valid, 6471 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:05:34,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3925 Valid, 6471 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-03 02:05:34,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32145 states. [2022-11-03 02:05:37,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32145 to 32143. [2022-11-03 02:05:37,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32143 states, 20037 states have (on average 1.3411688376503468) internal successors, (26873), 20814 states have internal predecessors, (26873), 10290 states have call successors, (10290), 1816 states have call predecessors, (10290), 1815 states have return successors, (10312), 10167 states have call predecessors, (10312), 10288 states have call successors, (10312) [2022-11-03 02:05:37,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32143 states to 32143 states and 47475 transitions. [2022-11-03 02:05:37,291 INFO L78 Accepts]: Start accepts. Automaton has 32143 states and 47475 transitions. Word has length 27 [2022-11-03 02:05:37,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:05:37,292 INFO L495 AbstractCegarLoop]: Abstraction has 32143 states and 47475 transitions. [2022-11-03 02:05:37,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:05:37,292 INFO L276 IsEmpty]: Start isEmpty. Operand 32143 states and 47475 transitions. [2022-11-03 02:05:37,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-03 02:05:37,296 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:05:37,297 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:05:37,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:05:37,298 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:05:37,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:05:37,300 INFO L85 PathProgramCache]: Analyzing trace with hash -2132711820, now seen corresponding path program 1 times [2022-11-03 02:05:37,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:05:37,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566547300] [2022-11-03 02:05:37,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:05:37,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:05:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:05:37,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:05:37,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:05:37,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566547300] [2022-11-03 02:05:37,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566547300] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:05:37,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:05:37,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:05:37,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967849202] [2022-11-03 02:05:37,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:05:37,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:05:37,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:05:37,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:05:37,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:05:37,702 INFO L87 Difference]: Start difference. First operand 32143 states and 47475 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:05:41,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:05:43,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:05:43,905 INFO L93 Difference]: Finished difference Result 33425 states and 49200 transitions. [2022-11-03 02:05:43,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:05:43,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2022-11-03 02:05:43,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:05:44,096 INFO L225 Difference]: With dead ends: 33425 [2022-11-03 02:05:44,096 INFO L226 Difference]: Without dead ends: 33352 [2022-11-03 02:05:44,123 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 [2022-11-03 02:05:44,124 INFO L413 NwaCegarLoop]: 3955 mSDtfsCounter, 3912 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3918 SdHoareTripleChecker+Valid, 4345 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:05:44,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3918 Valid, 4345 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 437 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-11-03 02:05:44,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33352 states. [2022-11-03 02:05:46,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33352 to 33352. [2022-11-03 02:05:46,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33352 states, 20811 states have (on average 1.3399644418816972) internal successors, (27886), 21616 states have internal predecessors, (27886), 10581 states have call successors, (10581), 1956 states have call predecessors, (10581), 1959 states have return successors, (10628), 10462 states have call predecessors, (10628), 10580 states have call successors, (10628) [2022-11-03 02:05:46,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33352 states to 33352 states and 49095 transitions. [2022-11-03 02:05:46,560 INFO L78 Accepts]: Start accepts. Automaton has 33352 states and 49095 transitions. Word has length 28 [2022-11-03 02:05:46,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:05:46,562 INFO L495 AbstractCegarLoop]: Abstraction has 33352 states and 49095 transitions. [2022-11-03 02:05:46,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:05:46,562 INFO L276 IsEmpty]: Start isEmpty. Operand 33352 states and 49095 transitions. [2022-11-03 02:05:46,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-03 02:05:46,579 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:05:46,579 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:05:46,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:05:46,580 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:05:46,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:05:46,580 INFO L85 PathProgramCache]: Analyzing trace with hash -2037544401, now seen corresponding path program 1 times [2022-11-03 02:05:46,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:05:46,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303347764] [2022-11-03 02:05:46,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:05:46,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:05:46,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:05:47,249 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:05:47,249 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:05:47,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303347764] [2022-11-03 02:05:47,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303347764] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:05:47,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:05:47,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:05:47,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124577586] [2022-11-03 02:05:47,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:05:47,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:05:47,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:05:47,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:05:47,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:05:47,252 INFO L87 Difference]: Start difference. First operand 33352 states and 49095 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 02:05:52,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:05:52,379 INFO L93 Difference]: Finished difference Result 66705 states and 98191 transitions. [2022-11-03 02:05:52,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:05:52,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2022-11-03 02:05:52,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:05:52,569 INFO L225 Difference]: With dead ends: 66705 [2022-11-03 02:05:52,569 INFO L226 Difference]: Without dead ends: 33352 [2022-11-03 02:05:52,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:05:52,751 INFO L413 NwaCegarLoop]: 3620 mSDtfsCounter, 1 mSDsluCounter, 7892 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10855 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:05:52,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 10855 Invalid, 994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-03 02:05:52,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33352 states. [2022-11-03 02:05:54,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33352 to 33352. [2022-11-03 02:05:54,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33352 states, 20811 states have (on average 1.339580029791937) internal successors, (27878), 21616 states have internal predecessors, (27878), 10581 states have call successors, (10581), 1956 states have call predecessors, (10581), 1959 states have return successors, (10628), 10462 states have call predecessors, (10628), 10580 states have call successors, (10628) [2022-11-03 02:05:55,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33352 states to 33352 states and 49087 transitions. [2022-11-03 02:05:55,166 INFO L78 Accepts]: Start accepts. Automaton has 33352 states and 49087 transitions. Word has length 42 [2022-11-03 02:05:55,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:05:55,167 INFO L495 AbstractCegarLoop]: Abstraction has 33352 states and 49087 transitions. [2022-11-03 02:05:55,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 02:05:55,167 INFO L276 IsEmpty]: Start isEmpty. Operand 33352 states and 49087 transitions. [2022-11-03 02:05:55,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-03 02:05:55,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:05:55,188 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:05:55,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:05:55,188 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:05:55,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:05:55,189 INFO L85 PathProgramCache]: Analyzing trace with hash 467799789, now seen corresponding path program 1 times [2022-11-03 02:05:55,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:05:55,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648082357] [2022-11-03 02:05:55,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:05:55,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:05:55,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:05:56,055 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:05:56,056 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:05:56,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648082357] [2022-11-03 02:05:56,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648082357] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:05:56,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:05:56,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:05:56,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101009839] [2022-11-03 02:05:56,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:05:56,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:05:56,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:05:56,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:05:56,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:05:56,058 INFO L87 Difference]: Start difference. First operand 33352 states and 49087 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 02:06:05,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:06:05,813 INFO L93 Difference]: Finished difference Result 83230 states and 122455 transitions. [2022-11-03 02:06:05,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:06:05,815 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 60 [2022-11-03 02:06:05,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:06:06,263 INFO L225 Difference]: With dead ends: 83230 [2022-11-03 02:06:06,264 INFO L226 Difference]: Without dead ends: 49879 [2022-11-03 02:06:06,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:06:06,422 INFO L413 NwaCegarLoop]: 7102 mSDtfsCounter, 6195 mSDsluCounter, 3930 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 1672 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6195 SdHoareTripleChecker+Valid, 10705 SdHoareTripleChecker+Invalid, 2652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1672 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:06:06,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6195 Valid, 10705 Invalid, 2652 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1672 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-11-03 02:06:06,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49879 states. [2022-11-03 02:06:09,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49879 to 49857. [2022-11-03 02:06:09,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49857 states, 31129 states have (on average 1.3400687461852292) internal successors, (41715), 32344 states have internal predecessors, (41715), 15773 states have call successors, (15773), 2951 states have call predecessors, (15773), 2954 states have return successors, (15820), 15587 states have call predecessors, (15820), 15772 states have call successors, (15820) [2022-11-03 02:06:09,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49857 states to 49857 states and 73308 transitions. [2022-11-03 02:06:09,642 INFO L78 Accepts]: Start accepts. Automaton has 49857 states and 73308 transitions. Word has length 60 [2022-11-03 02:06:09,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:06:09,643 INFO L495 AbstractCegarLoop]: Abstraction has 49857 states and 73308 transitions. [2022-11-03 02:06:09,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 02:06:09,643 INFO L276 IsEmpty]: Start isEmpty. Operand 49857 states and 73308 transitions. [2022-11-03 02:06:09,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-03 02:06:09,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:09,663 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:06:09,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:06:09,663 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:06:09,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:09,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1742697609, now seen corresponding path program 1 times [2022-11-03 02:06:09,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:09,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829722946] [2022-11-03 02:06:09,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:09,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:09,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:10,600 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:06:10,600 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:10,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829722946] [2022-11-03 02:06:10,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829722946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:06:10,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:06:10,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:06:10,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166503696] [2022-11-03 02:06:10,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:06:10,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:06:10,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:06:10,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:06:10,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:06:10,604 INFO L87 Difference]: Start difference. First operand 49857 states and 73308 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 02:06:19,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:06:19,143 INFO L93 Difference]: Finished difference Result 122985 states and 180911 transitions. [2022-11-03 02:06:19,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:06:19,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 62 [2022-11-03 02:06:19,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:06:19,526 INFO L225 Difference]: With dead ends: 122985 [2022-11-03 02:06:19,527 INFO L226 Difference]: Without dead ends: 73129 [2022-11-03 02:06:19,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:06:19,738 INFO L413 NwaCegarLoop]: 7107 mSDtfsCounter, 3932 mSDsluCounter, 7860 mSDsCounter, 0 mSdLazyCounter, 1323 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3932 SdHoareTripleChecker+Valid, 14313 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:06:19,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3932 Valid, 14313 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1323 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-03 02:06:19,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73129 states.