./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 15:13:17,214 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 15:13:17,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 15:13:17,277 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 15:13:17,278 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 15:13:17,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 15:13:17,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 15:13:17,285 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 15:13:17,287 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 15:13:17,290 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 15:13:17,291 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 15:13:17,292 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 15:13:17,292 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 15:13:17,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 15:13:17,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 15:13:17,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 15:13:17,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 15:13:17,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 15:13:17,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 15:13:17,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 15:13:17,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 15:13:17,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 15:13:17,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 15:13:17,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 15:13:17,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 15:13:17,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 15:13:17,316 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 15:13:17,318 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 15:13:17,318 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 15:13:17,319 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 15:13:17,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 15:13:17,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 15:13:17,321 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 15:13:17,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 15:13:17,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 15:13:17,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 15:13:17,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 15:13:17,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 15:13:17,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 15:13:17,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 15:13:17,325 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 15:13:17,326 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 15:13:17,355 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 15:13:17,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 15:13:17,356 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 15:13:17,356 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 15:13:17,357 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 15:13:17,357 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 15:13:17,358 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 15:13:17,358 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 15:13:17,358 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 15:13:17,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 15:13:17,359 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 15:13:17,359 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 15:13:17,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 15:13:17,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 15:13:17,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 15:13:17,360 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 15:13:17,360 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 15:13:17,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 15:13:17,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 15:13:17,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 15:13:17,360 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 15:13:17,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:13:17,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 15:13:17,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 15:13:17,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 15:13:17,361 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 15:13:17,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 15:13:17,362 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 15:13:17,362 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 15:13:17,362 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 15:13:17,362 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 15:13:17,362 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 [2021-12-22 15:13:17,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 15:13:17,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 15:13:17,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 15:13:17,635 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 15:13:17,635 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 15:13:17,636 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2021-12-22 15:13:17,710 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74701e663/0da91386aa244ceaa82b95e193a426fa/FLAGce393ae27 [2021-12-22 15:13:18,316 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 15:13:18,317 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2021-12-22 15:13:18,352 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74701e663/0da91386aa244ceaa82b95e193a426fa/FLAGce393ae27 [2021-12-22 15:13:18,713 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74701e663/0da91386aa244ceaa82b95e193a426fa [2021-12-22 15:13:18,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 15:13:18,717 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 15:13:18,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 15:13:18,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 15:13:18,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 15:13:18,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:13:18" (1/1) ... [2021-12-22 15:13:18,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b7e8806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:13:18, skipping insertion in model container [2021-12-22 15:13:18,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:13:18" (1/1) ... [2021-12-22 15:13:18,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 15:13:18,837 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 15:13:20,583 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[280896,280909] [2021-12-22 15:13:20,646 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:13:20,689 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 15:13:20,978 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[280896,280909] [2021-12-22 15:13:20,986 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:13:21,099 INFO L208 MainTranslator]: Completed translation [2021-12-22 15:13:21,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:13:21 WrapperNode [2021-12-22 15:13:21,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 15:13:21,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 15:13:21,103 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 15:13:21,103 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 15:13:21,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:13:21" (1/1) ... [2021-12-22 15:13:21,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:13:21" (1/1) ... [2021-12-22 15:13:21,303 INFO L137 Inliner]: procedures = 274, calls = 1587, calls flagged for inlining = 149, calls inlined = 146, statements flattened = 4283 [2021-12-22 15:13:21,303 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 15:13:21,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 15:13:21,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 15:13:21,304 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 15:13:21,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:13:21" (1/1) ... [2021-12-22 15:13:21,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:13:21" (1/1) ... [2021-12-22 15:13:21,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:13:21" (1/1) ... [2021-12-22 15:13:21,364 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:13:21" (1/1) ... [2021-12-22 15:13:21,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:13:21" (1/1) ... [2021-12-22 15:13:21,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:13:21" (1/1) ... [2021-12-22 15:13:21,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:13:21" (1/1) ... [2021-12-22 15:13:21,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 15:13:21,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 15:13:21,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 15:13:21,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 15:13:21,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:13:21" (1/1) ... [2021-12-22 15:13:21,528 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:13:21,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:13:21,566 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 15:13:21,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 15:13:21,600 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rxfilter [2021-12-22 15:13:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rxfilter [2021-12-22 15:13:21,601 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-12-22 15:13:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-12-22 15:13:21,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_3 [2021-12-22 15:13:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_3 [2021-12-22 15:13:21,601 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-22 15:13:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-22 15:13:21,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 15:13:21,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 15:13:21,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 15:13:21,602 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 15:13:21,602 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-22 15:13:21,602 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-22 15:13:21,602 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-22 15:13:21,602 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-22 15:13:21,602 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-22 15:13:21,603 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-22 15:13:21,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-22 15:13:21,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-22 15:13:21,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 15:13:21,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 15:13:21,603 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_reset [2021-12-22 15:13:21,603 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_reset [2021-12-22 15:13:21,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 15:13:21,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 15:13:21,604 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-22 15:13:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-22 15:13:21,604 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-22 15:13:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-22 15:13:21,604 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-22 15:13:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-22 15:13:21,604 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-22 15:13:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-22 15:13:21,605 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_default_phy [2021-12-22 15:13:21,605 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_default_phy [2021-12-22 15:13:21,605 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-12-22 15:13:21,605 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-12-22 15:13:21,605 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 15:13:21,605 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 15:13:21,605 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-22 15:13:21,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-22 15:13:21,605 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-22 15:13:21,606 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-22 15:13:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-22 15:13:21,606 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-22 15:13:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-22 15:13:21,606 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-22 15:13:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_check_mode [2021-12-22 15:13:21,606 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_check_mode [2021-12-22 15:13:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-22 15:13:21,607 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-22 15:13:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2021-12-22 15:13:21,607 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2021-12-22 15:13:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-22 15:13:21,607 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-22 15:13:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 15:13:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-22 15:13:21,607 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-22 15:13:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-12-22 15:13:21,608 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-12-22 15:13:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 15:13:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-22 15:13:21,608 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-22 15:13:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-22 15:13:21,608 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-22 15:13:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-22 15:13:21,608 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-22 15:13:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-22 15:13:21,609 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-22 15:13:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-22 15:13:21,609 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-22 15:13:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-22 15:13:21,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-22 15:13:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rx_ring [2021-12-22 15:13:21,609 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rx_ring [2021-12-22 15:13:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_remove [2021-12-22 15:13:21,610 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_remove [2021-12-22 15:13:21,610 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 15:13:21,610 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 15:13:21,610 INFO L130 BoogieDeclarations]: Found specification of procedure sis630_set_eq [2021-12-22 15:13:21,610 INFO L138 BoogieDeclarations]: Found implementation of procedure sis630_set_eq [2021-12-22 15:13:21,610 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_device [2021-12-22 15:13:21,610 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_device [2021-12-22 15:13:21,610 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-22 15:13:21,610 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-22 15:13:21,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 15:13:21,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 15:13:21,611 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-12-22 15:13:21,611 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-12-22 15:13:21,611 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-12-22 15:13:21,611 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-12-22 15:13:21,611 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-22 15:13:21,611 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-22 15:13:21,611 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_tx_ring [2021-12-22 15:13:21,612 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_tx_ring [2021-12-22 15:13:21,612 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-22 15:13:21,612 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-22 15:13:21,612 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2021-12-22 15:13:21,612 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2021-12-22 15:13:21,612 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-22 15:13:21,612 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-22 15:13:21,612 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-22 15:13:21,613 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-22 15:13:21,613 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-12-22 15:13:21,613 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-12-22 15:13:21,613 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_mode [2021-12-22 15:13:21,613 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_mode [2021-12-22 15:13:21,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 15:13:21,613 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_poll [2021-12-22 15:13:21,613 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_poll [2021-12-22 15:13:21,613 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-12-22 15:13:21,614 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-12-22 15:13:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-22 15:13:21,614 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-22 15:13:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-22 15:13:21,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-22 15:13:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-12-22 15:13:21,614 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-12-22 15:13:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-22 15:13:21,614 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-22 15:13:21,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-22 15:13:21,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-22 15:13:21,615 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 15:13:21,616 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 15:13:21,616 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_resume [2021-12-22 15:13:21,616 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_resume [2021-12-22 15:13:21,616 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-22 15:13:21,619 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-22 15:13:21,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 15:13:21,619 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2021-12-22 15:13:21,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2021-12-22 15:13:21,620 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-22 15:13:21,620 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-22 15:13:21,620 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_interrupt [2021-12-22 15:13:21,620 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_interrupt [2021-12-22 15:13:21,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 15:13:21,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 15:13:21,620 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_reset_phy [2021-12-22 15:13:21,620 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_reset_phy [2021-12-22 15:13:21,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-22 15:13:21,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-22 15:13:21,621 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_config [2021-12-22 15:13:21,621 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_config [2021-12-22 15:13:21,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 15:13:21,621 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2021-12-22 15:13:21,621 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2021-12-22 15:13:21,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-22 15:13:21,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-22 15:13:21,621 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2021-12-22 15:13:21,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2021-12-22 15:13:21,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 15:13:21,622 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_idle [2021-12-22 15:13:21,622 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_idle [2021-12-22 15:13:21,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 15:13:21,622 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-12-22 15:13:21,622 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-12-22 15:13:21,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-22 15:13:21,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-22 15:13:21,622 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2021-12-22 15:13:21,622 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2021-12-22 15:13:21,622 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-22 15:13:21,623 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-22 15:13:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_3 [2021-12-22 15:13:21,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_3 [2021-12-22 15:13:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_tx_timeout [2021-12-22 15:13:21,623 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_tx_timeout [2021-12-22 15:13:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-22 15:13:21,623 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-22 15:13:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ioctl [2021-12-22 15:13:21,623 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ioctl [2021-12-22 15:13:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-22 15:13:21,624 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-22 15:13:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 15:13:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-12-22 15:13:21,624 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-12-22 15:13:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 15:13:21,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 15:13:22,321 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 15:13:22,324 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 15:13:22,559 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 15:13:24,469 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 15:13:24,489 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 15:13:24,489 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-22 15:13:24,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:13:24 BoogieIcfgContainer [2021-12-22 15:13:24,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 15:13:24,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 15:13:24,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 15:13:24,497 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 15:13:24,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:13:18" (1/3) ... [2021-12-22 15:13:24,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b7005be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:13:24, skipping insertion in model container [2021-12-22 15:13:24,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:13:21" (2/3) ... [2021-12-22 15:13:24,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b7005be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:13:24, skipping insertion in model container [2021-12-22 15:13:24,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:13:24" (3/3) ... [2021-12-22 15:13:24,500 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2021-12-22 15:13:24,506 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 15:13:24,506 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 15:13:24,554 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 15:13:24,565 INFO L339 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=PETRI_NET, 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 15:13:24,566 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 15:13:24,611 INFO L276 IsEmpty]: Start isEmpty. Operand has 1706 states, 1176 states have (on average 1.3265306122448979) internal successors, (1560), 1200 states have internal predecessors, (1560), 446 states have call successors, (446), 83 states have call predecessors, (446), 82 states have return successors, (439), 435 states have call predecessors, (439), 439 states have call successors, (439) [2021-12-22 15:13:24,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-12-22 15:13:24,634 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:13:24,635 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:13:24,635 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:13:24,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:13:24,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1411471056, now seen corresponding path program 1 times [2021-12-22 15:13:24,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:13:24,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659050246] [2021-12-22 15:13:24,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:13:24,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:13:24,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:25,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:13:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:25,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:25,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:25,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:25,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:25,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:13:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:25,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:25,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:25,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:25,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:13:25,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:25,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:25,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:25,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:25,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:13:25,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:25,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:25,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:25,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:25,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:13:25,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:25,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:25,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:25,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:25,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:25,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:13:25,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:25,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:25,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:25,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:25,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:25,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 15:13:25,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:25,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-22 15:13:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:25,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 15:13:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:25,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-22 15:13:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:25,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-22 15:13:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:25,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-22 15:13:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:25,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-22 15:13:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:25,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-22 15:13:25,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:25,431 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-12-22 15:13:25,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:13:25,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659050246] [2021-12-22 15:13:25,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659050246] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:13:25,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:13:25,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:13:25,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507439472] [2021-12-22 15:13:25,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:13:25,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:13:25,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:13:25,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:13:25,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:13:25,474 INFO L87 Difference]: Start difference. First operand has 1706 states, 1176 states have (on average 1.3265306122448979) internal successors, (1560), 1200 states have internal predecessors, (1560), 446 states have call successors, (446), 83 states have call predecessors, (446), 82 states have return successors, (439), 435 states have call predecessors, (439), 439 states have call successors, (439) Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-22 15:13:29,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:13:29,486 INFO L93 Difference]: Finished difference Result 3618 states and 5281 transitions. [2021-12-22 15:13:29,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:13:29,491 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 178 [2021-12-22 15:13:29,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:13:29,516 INFO L225 Difference]: With dead ends: 3618 [2021-12-22 15:13:29,518 INFO L226 Difference]: Without dead ends: 1897 [2021-12-22 15:13:29,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:13:29,554 INFO L933 BasicCegarLoop]: 2150 mSDtfsCounter, 1890 mSDsluCounter, 3305 mSDsCounter, 0 mSdLazyCounter, 2528 mSolverCounterSat, 1888 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1958 SdHoareTripleChecker+Valid, 5455 SdHoareTripleChecker+Invalid, 4416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1888 IncrementalHoareTripleChecker+Valid, 2528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-12-22 15:13:29,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1958 Valid, 5455 Invalid, 4416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1888 Valid, 2528 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-12-22 15:13:29,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1897 states. [2021-12-22 15:13:29,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1897 to 1686. [2021-12-22 15:13:29,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1686 states, 1165 states have (on average 1.3167381974248926) internal successors, (1534), 1180 states have internal predecessors, (1534), 439 states have call successors, (439), 82 states have call predecessors, (439), 81 states have return successors, (438), 434 states have call predecessors, (438), 438 states have call successors, (438) [2021-12-22 15:13:29,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1686 states to 1686 states and 2411 transitions. [2021-12-22 15:13:29,720 INFO L78 Accepts]: Start accepts. Automaton has 1686 states and 2411 transitions. Word has length 178 [2021-12-22 15:13:29,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:13:29,721 INFO L470 AbstractCegarLoop]: Abstraction has 1686 states and 2411 transitions. [2021-12-22 15:13:29,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-22 15:13:29,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1686 states and 2411 transitions. [2021-12-22 15:13:29,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-12-22 15:13:29,749 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:13:29,750 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:13:29,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 15:13:29,750 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:13:29,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:13:29,752 INFO L85 PathProgramCache]: Analyzing trace with hash 419462204, now seen corresponding path program 1 times [2021-12-22 15:13:29,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:13:29,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578876496] [2021-12-22 15:13:29,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:13:29,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:13:29,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:29,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:13:29,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:29,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:29,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:29,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:29,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:13:29,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:30,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:30,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:30,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:13:30,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:30,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:30,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:30,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:30,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:30,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:13:30,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:30,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:30,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:30,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:30,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:13:30,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:30,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:30,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:30,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:30,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:13:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:30,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:30,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:30,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:30,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:30,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 15:13:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:30,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-22 15:13:30,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:30,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 15:13:30,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:30,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-22 15:13:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:30,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-22 15:13:30,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:30,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-22 15:13:30,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:30,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-22 15:13:30,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:30,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-22 15:13:30,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:30,242 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-12-22 15:13:30,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:13:30,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578876496] [2021-12-22 15:13:30,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578876496] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:13:30,243 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:13:30,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-22 15:13:30,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119959824] [2021-12-22 15:13:30,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:13:30,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 15:13:30,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:13:30,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 15:13:30,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:13:30,246 INFO L87 Difference]: Start difference. First operand 1686 states and 2411 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-22 15:13:37,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:13:37,155 INFO L93 Difference]: Finished difference Result 5427 states and 7844 transitions. [2021-12-22 15:13:37,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-22 15:13:37,157 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 178 [2021-12-22 15:13:37,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:13:37,183 INFO L225 Difference]: With dead ends: 5427 [2021-12-22 15:13:37,183 INFO L226 Difference]: Without dead ends: 3769 [2021-12-22 15:13:37,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-22 15:13:37,195 INFO L933 BasicCegarLoop]: 2445 mSDtfsCounter, 6781 mSDsluCounter, 7106 mSDsCounter, 0 mSdLazyCounter, 5387 mSolverCounterSat, 5398 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7097 SdHoareTripleChecker+Valid, 9551 SdHoareTripleChecker+Invalid, 10785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5398 IncrementalHoareTripleChecker+Valid, 5387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-12-22 15:13:37,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7097 Valid, 9551 Invalid, 10785 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5398 Valid, 5387 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2021-12-22 15:13:37,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3769 states. [2021-12-22 15:13:37,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3769 to 3338. [2021-12-22 15:13:37,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3338 states, 2308 states have (on average 1.317157712305026) internal successors, (3040), 2342 states have internal predecessors, (3040), 867 states have call successors, (867), 163 states have call predecessors, (867), 162 states have return successors, (866), 854 states have call predecessors, (866), 866 states have call successors, (866) [2021-12-22 15:13:37,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3338 states to 3338 states and 4773 transitions. [2021-12-22 15:13:37,382 INFO L78 Accepts]: Start accepts. Automaton has 3338 states and 4773 transitions. Word has length 178 [2021-12-22 15:13:37,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:13:37,384 INFO L470 AbstractCegarLoop]: Abstraction has 3338 states and 4773 transitions. [2021-12-22 15:13:37,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-22 15:13:37,385 INFO L276 IsEmpty]: Start isEmpty. Operand 3338 states and 4773 transitions. [2021-12-22 15:13:37,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-12-22 15:13:37,397 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:13:37,397 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:13:37,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 15:13:37,397 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:13:37,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:13:37,398 INFO L85 PathProgramCache]: Analyzing trace with hash 773468645, now seen corresponding path program 1 times [2021-12-22 15:13:37,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:13:37,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570707579] [2021-12-22 15:13:37,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:13:37,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:13:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:37,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:13:37,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:37,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:37,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:37,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:37,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:13:37,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:37,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:37,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:37,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:13:37,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:37,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:37,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:37,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:37,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:13:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:37,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:37,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:37,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:37,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:13:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:37,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:37,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:37,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:13:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:37,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:37,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:37,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:37,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:37,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 15:13:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:37,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-22 15:13:37,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:37,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 15:13:37,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:37,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-22 15:13:37,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:37,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-22 15:13:37,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:37,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-22 15:13:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:37,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-22 15:13:37,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:37,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-22 15:13:37,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:37,796 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-12-22 15:13:37,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:13:37,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570707579] [2021-12-22 15:13:37,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570707579] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:13:37,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:13:37,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-22 15:13:37,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337701720] [2021-12-22 15:13:37,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:13:37,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 15:13:37,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:13:37,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 15:13:37,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:13:37,800 INFO L87 Difference]: Start difference. First operand 3338 states and 4773 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-22 15:13:45,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:13:45,849 INFO L93 Difference]: Finished difference Result 10810 states and 15611 transitions. [2021-12-22 15:13:45,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-22 15:13:45,849 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 179 [2021-12-22 15:13:45,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:13:45,885 INFO L225 Difference]: With dead ends: 10810 [2021-12-22 15:13:45,885 INFO L226 Difference]: Without dead ends: 7500 [2021-12-22 15:13:45,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-22 15:13:45,901 INFO L933 BasicCegarLoop]: 2385 mSDtfsCounter, 5584 mSDsluCounter, 8605 mSDsCounter, 0 mSdLazyCounter, 7029 mSolverCounterSat, 4204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5902 SdHoareTripleChecker+Valid, 10990 SdHoareTripleChecker+Invalid, 11233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4204 IncrementalHoareTripleChecker+Valid, 7029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-12-22 15:13:45,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5902 Valid, 10990 Invalid, 11233 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4204 Valid, 7029 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2021-12-22 15:13:45,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7500 states. [2021-12-22 15:13:46,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7500 to 6647. [2021-12-22 15:13:46,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6647 states, 4600 states have (on average 1.3169565217391304) internal successors, (6058), 4667 states have internal predecessors, (6058), 1722 states have call successors, (1722), 325 states have call predecessors, (1722), 324 states have return successors, (1721), 1698 states have call predecessors, (1721), 1721 states have call successors, (1721) [2021-12-22 15:13:46,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6647 states to 6647 states and 9501 transitions. [2021-12-22 15:13:46,167 INFO L78 Accepts]: Start accepts. Automaton has 6647 states and 9501 transitions. Word has length 179 [2021-12-22 15:13:46,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:13:46,167 INFO L470 AbstractCegarLoop]: Abstraction has 6647 states and 9501 transitions. [2021-12-22 15:13:46,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-22 15:13:46,169 INFO L276 IsEmpty]: Start isEmpty. Operand 6647 states and 9501 transitions. [2021-12-22 15:13:46,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-12-22 15:13:46,176 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:13:46,176 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:13:46,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 15:13:46,177 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:13:46,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:13:46,177 INFO L85 PathProgramCache]: Analyzing trace with hash 2055801823, now seen corresponding path program 1 times [2021-12-22 15:13:46,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:13:46,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037641057] [2021-12-22 15:13:46,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:13:46,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:13:46,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:46,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:13:46,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:46,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:46,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:46,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:46,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:46,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:13:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:46,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:46,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:46,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:46,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:13:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:46,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:46,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:46,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:46,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:13:46,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:46,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:46,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:46,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:13:46,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:46,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:46,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:46,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:46,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:13:46,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:46,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:46,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:46,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:46,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:46,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 15:13:46,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:46,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-22 15:13:46,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:46,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 15:13:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:46,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-22 15:13:46,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:46,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-22 15:13:46,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:46,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 15:13:46,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:46,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-22 15:13:46,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:46,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-22 15:13:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:46,635 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-12-22 15:13:46,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:13:46,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037641057] [2021-12-22 15:13:46,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037641057] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:13:46,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:13:46,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-22 15:13:46,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575170659] [2021-12-22 15:13:46,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:13:46,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 15:13:46,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:13:46,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 15:13:46,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:13:46,638 INFO L87 Difference]: Start difference. First operand 6647 states and 9501 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-22 15:13:53,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:13:53,518 INFO L93 Difference]: Finished difference Result 21588 states and 31145 transitions. [2021-12-22 15:13:53,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-22 15:13:53,519 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 180 [2021-12-22 15:13:53,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:13:53,609 INFO L225 Difference]: With dead ends: 21588 [2021-12-22 15:13:53,609 INFO L226 Difference]: Without dead ends: 14969 [2021-12-22 15:13:53,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-22 15:13:53,645 INFO L933 BasicCegarLoop]: 2359 mSDtfsCounter, 6951 mSDsluCounter, 6999 mSDsCounter, 0 mSdLazyCounter, 5223 mSolverCounterSat, 5518 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7268 SdHoareTripleChecker+Valid, 9358 SdHoareTripleChecker+Invalid, 10741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5518 IncrementalHoareTripleChecker+Valid, 5223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-12-22 15:13:53,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7268 Valid, 9358 Invalid, 10741 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5518 Valid, 5223 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2021-12-22 15:13:53,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14969 states. [2021-12-22 15:13:54,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14969 to 13270. [2021-12-22 15:13:54,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13270 states, 9189 states have (on average 1.3165741647622158) internal successors, (12098), 9321 states have internal predecessors, (12098), 3431 states have call successors, (3431), 650 states have call predecessors, (3431), 649 states have return successors, (3430), 3386 states have call predecessors, (3430), 3430 states have call successors, (3430) [2021-12-22 15:13:54,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13270 states to 13270 states and 18959 transitions. [2021-12-22 15:13:54,460 INFO L78 Accepts]: Start accepts. Automaton has 13270 states and 18959 transitions. Word has length 180 [2021-12-22 15:13:54,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:13:54,460 INFO L470 AbstractCegarLoop]: Abstraction has 13270 states and 18959 transitions. [2021-12-22 15:13:54,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-22 15:13:54,461 INFO L276 IsEmpty]: Start isEmpty. Operand 13270 states and 18959 transitions. [2021-12-22 15:13:54,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-12-22 15:13:54,472 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:13:54,472 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:13:54,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 15:13:54,473 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:13:54,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:13:54,474 INFO L85 PathProgramCache]: Analyzing trace with hash -162949078, now seen corresponding path program 1 times [2021-12-22 15:13:54,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:13:54,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213706145] [2021-12-22 15:13:54,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:13:54,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:13:54,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:54,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:13:54,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:54,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:54,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:54,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:54,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:54,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:13:54,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:54,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:54,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:54,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:54,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:13:54,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:54,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:54,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:54,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:54,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:13:54,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:54,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:54,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:54,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:54,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:54,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:13:54,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:54,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:54,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:54,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:54,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:13:54,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:54,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:13:54,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:54,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:13:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:54,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 15:13:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:54,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-22 15:13:54,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:54,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 15:13:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:54,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-22 15:13:54,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:54,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-22 15:13:54,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:54,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-22 15:13:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:54,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-22 15:13:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:54,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-22 15:13:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:54,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 15:13:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:13:54,831 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-12-22 15:13:54,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:13:54,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213706145] [2021-12-22 15:13:54,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213706145] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:13:54,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:13:54,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 15:13:54,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133227243] [2021-12-22 15:13:54,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:13:54,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 15:13:54,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:13:54,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 15:13:54,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-22 15:13:54,834 INFO L87 Difference]: Start difference. First operand 13270 states and 18959 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-22 15:14:01,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:14:01,054 INFO L93 Difference]: Finished difference Result 39963 states and 57434 transitions. [2021-12-22 15:14:01,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-22 15:14:01,055 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 192 [2021-12-22 15:14:01,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:14:01,186 INFO L225 Difference]: With dead ends: 39963 [2021-12-22 15:14:01,186 INFO L226 Difference]: Without dead ends: 26721 [2021-12-22 15:14:01,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-12-22 15:14:01,252 INFO L933 BasicCegarLoop]: 2272 mSDtfsCounter, 5142 mSDsluCounter, 3970 mSDsCounter, 0 mSdLazyCounter, 3630 mSolverCounterSat, 3893 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5380 SdHoareTripleChecker+Valid, 6242 SdHoareTripleChecker+Invalid, 7523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3893 IncrementalHoareTripleChecker+Valid, 3630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:14:01,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5380 Valid, 6242 Invalid, 7523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3893 Valid, 3630 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2021-12-22 15:14:01,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26721 states. [2021-12-22 15:14:02,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26721 to 23658. [2021-12-22 15:14:02,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23658 states, 16421 states have (on average 1.313561902441995) internal successors, (21570), 16693 states have internal predecessors, (21570), 6019 states have call successors, (6019), 1226 states have call predecessors, (6019), 1217 states have return successors, (6018), 5898 states have call predecessors, (6018), 6018 states have call successors, (6018) [2021-12-22 15:14:02,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23658 states to 23658 states and 33607 transitions. [2021-12-22 15:14:02,482 INFO L78 Accepts]: Start accepts. Automaton has 23658 states and 33607 transitions. Word has length 192 [2021-12-22 15:14:02,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:14:02,483 INFO L470 AbstractCegarLoop]: Abstraction has 23658 states and 33607 transitions. [2021-12-22 15:14:02,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-22 15:14:02,483 INFO L276 IsEmpty]: Start isEmpty. Operand 23658 states and 33607 transitions. [2021-12-22 15:14:02,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-12-22 15:14:02,487 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:14:02,487 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:14:02,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 15:14:02,488 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:14:02,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:14:02,488 INFO L85 PathProgramCache]: Analyzing trace with hash 2051492776, now seen corresponding path program 1 times [2021-12-22 15:14:02,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:14:02,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278362104] [2021-12-22 15:14:02,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:14:02,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:14:02,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:02,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:14:02,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:02,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:02,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:14:02,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:02,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:14:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:02,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:02,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:14:02,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:02,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:14:02,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:02,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:02,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:14:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:02,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:14:02,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:02,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:02,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:14:02,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:02,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:14:02,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:02,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:02,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:02,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:14:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:02,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:14:02,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:02,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:14:02,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:02,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:14:02,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:02,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 15:14:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:02,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-22 15:14:02,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:02,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 15:14:02,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:02,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-22 15:14:02,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:02,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-22 15:14:02,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:02,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-22 15:14:02,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:02,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-22 15:14:02,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:02,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-22 15:14:02,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:14:02,904 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-12-22 15:14:02,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:14:02,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278362104] [2021-12-22 15:14:02,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278362104] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:14:02,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:14:02,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-22 15:14:02,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336733069] [2021-12-22 15:14:02,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:14:02,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 15:14:02,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:14:02,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 15:14:02,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:14:02,907 INFO L87 Difference]: Start difference. First operand 23658 states and 33607 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-22 15:14:11,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:14:11,960 INFO L93 Difference]: Finished difference Result 76792 states and 110135 transitions. [2021-12-22 15:14:11,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-22 15:14:11,960 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 181 [2021-12-22 15:14:11,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:14:12,362 INFO L225 Difference]: With dead ends: 76792 [2021-12-22 15:14:12,363 INFO L226 Difference]: Without dead ends: 53162 [2021-12-22 15:14:12,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-22 15:14:12,455 INFO L933 BasicCegarLoop]: 2357 mSDtfsCounter, 5601 mSDsluCounter, 8531 mSDsCounter, 0 mSdLazyCounter, 6985 mSolverCounterSat, 4244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5918 SdHoareTripleChecker+Valid, 10888 SdHoareTripleChecker+Invalid, 11229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4244 IncrementalHoareTripleChecker+Valid, 6985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2021-12-22 15:14:12,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5918 Valid, 10888 Invalid, 11229 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4244 Valid, 6985 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2021-12-22 15:14:12,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53162 states.