./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.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 c097d45bf953c22cc618c35d7b4a2d8fd3613a03309b6d0b505b710dc0ccbe6f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 10:14:57,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 10:14:57,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 10:14:57,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 10:14:57,988 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 10:14:57,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 10:14:57,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 10:14:57,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 10:14:57,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 10:14:57,995 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 10:14:57,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 10:14:57,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 10:14:57,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 10:14:57,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 10:14:57,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 10:14:57,999 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 10:14:58,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 10:14:58,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 10:14:58,007 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 10:14:58,009 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 10:14:58,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 10:14:58,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 10:14:58,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 10:14:58,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 10:14:58,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 10:14:58,021 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 10:14:58,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 10:14:58,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 10:14:58,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 10:14:58,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 10:14:58,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 10:14:58,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 10:14:58,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 10:14:58,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 10:14:58,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 10:14:58,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 10:14:58,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 10:14:58,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 10:14:58,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 10:14:58,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 10:14:58,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 10:14:58,031 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 10:14:58,047 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 10:14:58,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 10:14:58,051 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 10:14:58,051 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 10:14:58,051 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 10:14:58,052 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 10:14:58,052 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 10:14:58,052 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 10:14:58,053 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 10:14:58,053 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 10:14:58,053 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 10:14:58,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 10:14:58,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 10:14:58,054 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 10:14:58,054 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 10:14:58,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 10:14:58,054 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 10:14:58,055 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 10:14:58,055 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 10:14:58,055 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 10:14:58,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 10:14:58,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 10:14:58,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 10:14:58,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 10:14:58,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 10:14:58,056 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 10:14:58,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 10:14:58,057 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 10:14:58,057 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 10:14:58,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 10:14:58,057 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 10:14:58,058 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c097d45bf953c22cc618c35d7b4a2d8fd3613a03309b6d0b505b710dc0ccbe6f [2021-11-17 10:14:58,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 10:14:58,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 10:14:58,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 10:14:58,260 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 10:14:58,260 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 10:14:58,261 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-17 10:14:58,316 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c282e2ec/ebddc6f221fa42499d971beb8592add4/FLAG73610a5a4 [2021-11-17 10:14:58,937 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 10:14:58,937 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-17 10:14:58,983 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c282e2ec/ebddc6f221fa42499d971beb8592add4/FLAG73610a5a4 [2021-11-17 10:14:59,355 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c282e2ec/ebddc6f221fa42499d971beb8592add4 [2021-11-17 10:14:59,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 10:14:59,358 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 10:14:59,359 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 10:14:59,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 10:14:59,362 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 10:14:59,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 10:14:59" (1/1) ... [2021-11-17 10:14:59,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2afd4433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:14:59, skipping insertion in model container [2021-11-17 10:14:59,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 10:14:59" (1/1) ... [2021-11-17 10:14:59,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 10:14:59,474 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 10:15:00,999 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[348277,348290] [2021-11-17 10:15:01,001 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[348422,348435] [2021-11-17 10:15:01,014 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 10:15:01,032 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 10:15:01,307 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[348277,348290] [2021-11-17 10:15:01,308 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[348422,348435] [2021-11-17 10:15:01,310 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 10:15:01,430 INFO L208 MainTranslator]: Completed translation [2021-11-17 10:15:01,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:15:01 WrapperNode [2021-11-17 10:15:01,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 10:15:01,432 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 10:15:01,432 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 10:15:01,432 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 10:15:01,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:15:01" (1/1) ... [2021-11-17 10:15:01,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:15:01" (1/1) ... [2021-11-17 10:15:01,640 INFO L137 Inliner]: procedures = 444, calls = 2166, calls flagged for inlining = 215, calls inlined = 200, statements flattened = 4980 [2021-11-17 10:15:01,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 10:15:01,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 10:15:01,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 10:15:01,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 10:15:01,648 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:15:01" (1/1) ... [2021-11-17 10:15:01,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:15:01" (1/1) ... [2021-11-17 10:15:01,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:15:01" (1/1) ... [2021-11-17 10:15:01,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:15:01" (1/1) ... [2021-11-17 10:15:01,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:15:01" (1/1) ... [2021-11-17 10:15:01,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:15:01" (1/1) ... [2021-11-17 10:15:01,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:15:01" (1/1) ... [2021-11-17 10:15:01,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 10:15:01,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 10:15:01,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 10:15:01,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 10:15:01,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:15:01" (1/1) ... [2021-11-17 10:15:01,858 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 10:15:01,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 10:15:01,896 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) [2021-11-17 10:15:01,911 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 [2021-11-17 10:15:01,939 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-17 10:15:01,939 INFO L130 BoogieDeclarations]: Found specification of procedure BB_GET_BIT2 [2021-11-17 10:15:01,940 INFO L138 BoogieDeclarations]: Found implementation of procedure BB_GET_BIT2 [2021-11-17 10:15:01,940 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-11-17 10:15:01,940 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-11-17 10:15:01,940 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-17 10:15:01,940 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-17 10:15:01,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 10:15:01,940 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 10:15:01,940 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_open [2021-11-17 10:15:01,940 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_open [2021-11-17 10:15:01,941 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_poll_stop [2021-11-17 10:15:01,941 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_poll_stop [2021-11-17 10:15:01,941 INFO L130 BoogieDeclarations]: Found specification of procedure is_quattro_p [2021-11-17 10:15:01,941 INFO L138 BoogieDeclarations]: Found implementation of procedure is_quattro_p [2021-11-17 10:15:01,941 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-17 10:15:01,941 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-17 10:15:01,941 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_close [2021-11-17 10:15:01,941 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_close [2021-11-17 10:15:01,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 10:15:01,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 10:15:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-17 10:15:01,942 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-17 10:15:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_87 [2021-11-17 10:15:01,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_87 [2021-11-17 10:15:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_set_multicast [2021-11-17 10:15:01,942 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_set_multicast [2021-11-17 10:15:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-17 10:15:01,942 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-17 10:15:01,943 INFO L130 BoogieDeclarations]: Found specification of procedure BB_PUT_BIT [2021-11-17 10:15:01,943 INFO L138 BoogieDeclarations]: Found implementation of procedure BB_PUT_BIT [2021-11-17 10:15:01,943 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-11-17 10:15:01,943 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-11-17 10:15:01,943 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_begin_auto_negotiation [2021-11-17 10:15:01,943 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_begin_auto_negotiation [2021-11-17 10:15:01,943 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_get_counters [2021-11-17 10:15:01,944 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_get_counters [2021-11-17 10:15:01,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_happy_lock_of_happy_meal [2021-11-17 10:15:01,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_happy_lock_of_happy_meal [2021-11-17 10:15:01,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-17 10:15:01,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-17 10:15:01,944 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-17 10:15:01,944 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-17 10:15:01,945 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-17 10:15:01,945 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-17 10:15:01,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2021-11-17 10:15:01,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2021-11-17 10:15:01,945 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-17 10:15:01,945 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-17 10:15:01,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 10:15:01,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 10:15:01,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 10:15:01,946 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-17 10:15:01,946 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-17 10:15:01,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_happy_lock_of_happy_meal [2021-11-17 10:15:01,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_happy_lock_of_happy_meal [2021-11-17 10:15:01,947 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 10:15:01,947 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 10:15:01,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 10:15:01,947 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-17 10:15:01,948 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-17 10:15:01,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 10:15:01,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-17 10:15:01,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-17 10:15:01,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 10:15:01,948 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-17 10:15:01,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-17 10:15:01,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-17 10:15:01,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-17 10:15:01,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-17 10:15:01,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-17 10:15:01,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-17 10:15:01,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-17 10:15:01,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-17 10:15:01,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-17 10:15:01,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-17 10:15:01,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-17 10:15:01,950 INFO L130 BoogieDeclarations]: Found specification of procedure set_happy_link_modes [2021-11-17 10:15:01,950 INFO L138 BoogieDeclarations]: Found implementation of procedure set_happy_link_modes [2021-11-17 10:15:01,950 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_reset [2021-11-17 10:15:01,950 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_reset [2021-11-17 10:15:01,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 10:15:01,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-17 10:15:01,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-17 10:15:01,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-17 10:15:01,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-17 10:15:01,951 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tx_timeout [2021-11-17 10:15:01,951 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tx_timeout [2021-11-17 10:15:01,951 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-17 10:15:01,952 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-17 10:15:01,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 10:15:01,952 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_read [2021-11-17 10:15:01,952 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_read [2021-11-17 10:15:01,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 10:15:01,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 10:15:01,953 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 10:15:01,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 10:15:01,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 10:15:01,953 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 10:15:01,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 10:15:01,953 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-17 10:15:01,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-17 10:15:01,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-17 10:15:01,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-17 10:15:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-17 10:15:01,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-17 10:15:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-17 10:15:01,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-17 10:15:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-17 10:15:01,954 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-17 10:15:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 10:15:01,955 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 10:15:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-17 10:15:01,955 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-17 10:15:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-17 10:15:01,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-17 10:15:01,956 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-17 10:15:01,958 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-17 10:15:01,958 INFO L130 BoogieDeclarations]: Found specification of procedure is_lucent_phy [2021-11-17 10:15:01,958 INFO L138 BoogieDeclarations]: Found implementation of procedure is_lucent_phy [2021-11-17 10:15:01,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 10:15:01,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 10:15:01,959 INFO L130 BoogieDeclarations]: Found specification of procedure hme_read_desc32 [2021-11-17 10:15:01,959 INFO L138 BoogieDeclarations]: Found implementation of procedure hme_read_desc32 [2021-11-17 10:15:01,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-17 10:15:01,960 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-17 10:15:01,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 10:15:01,964 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_clean_rings [2021-11-17 10:15:01,964 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_clean_rings [2021-11-17 10:15:01,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 10:15:01,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 10:15:01,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 10:15:01,965 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-17 10:15:01,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-17 10:15:01,965 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-17 10:15:01,965 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-17 10:15:01,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-17 10:15:01,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-17 10:15:01,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_happy_meal_exit_14_2 [2021-11-17 10:15:01,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_happy_meal_exit_14_2 [2021-11-17 10:15:01,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 10:15:01,965 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 10:15:01,966 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-17 10:15:01,966 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-17 10:15:01,966 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-11-17 10:15:01,966 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-11-17 10:15:01,966 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-17 10:15:01,966 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-17 10:15:01,966 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-17 10:15:01,966 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-17 10:15:01,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 10:15:01,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 10:15:01,966 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-17 10:15:01,967 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-17 10:15:01,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_86 [2021-11-17 10:15:01,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_86 [2021-11-17 10:15:01,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 10:15:01,967 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-17 10:15:01,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-17 10:15:01,967 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_stop [2021-11-17 10:15:01,967 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_stop [2021-11-17 10:15:01,967 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 10:15:01,967 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 10:15:01,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-17 10:15:01,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-17 10:15:01,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-17 10:15:01,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-17 10:15:01,968 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_pci_remove [2021-11-17 10:15:01,968 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_pci_remove [2021-11-17 10:15:01,968 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_init [2021-11-17 10:15:01,968 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_init [2021-11-17 10:15:01,968 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-17 10:15:01,968 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-17 10:15:01,968 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-17 10:15:01,969 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-17 10:15:01,969 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_write [2021-11-17 10:15:01,969 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_write [2021-11-17 10:15:01,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 10:15:01,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 10:15:01,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 10:15:01,969 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-17 10:15:01,969 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-17 10:15:01,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-17 10:15:01,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-17 10:15:01,970 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-17 10:15:01,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-17 10:15:01,970 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2021-11-17 10:15:01,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2021-11-17 10:15:01,970 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-17 10:15:01,970 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-17 10:15:01,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 10:15:01,971 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-11-17 10:15:01,971 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-11-17 10:15:01,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-17 10:15:01,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-17 10:15:01,971 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-11-17 10:15:01,971 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-11-17 10:15:01,971 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_transceiver_check [2021-11-17 10:15:01,971 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_transceiver_check [2021-11-17 10:15:02,552 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 10:15:02,554 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 10:15:02,913 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 10:15:08,000 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-17 10:15:08,131 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 10:15:08,149 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 10:15:08,149 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-17 10:15:08,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 10:15:08 BoogieIcfgContainer [2021-11-17 10:15:08,152 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 10:15:08,153 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 10:15:08,153 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 10:15:08,160 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 10:15:08,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 10:14:59" (1/3) ... [2021-11-17 10:15:08,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58cdae74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 10:15:08, skipping insertion in model container [2021-11-17 10:15:08,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:15:01" (2/3) ... [2021-11-17 10:15:08,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58cdae74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 10:15:08, skipping insertion in model container [2021-11-17 10:15:08,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 10:15:08" (3/3) ... [2021-11-17 10:15:08,162 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-17 10:15:08,166 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 10:15:08,166 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 10:15:08,218 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 10:15:08,231 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 [2021-11-17 10:15:08,234 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 10:15:08,280 INFO L276 IsEmpty]: Start isEmpty. Operand has 2004 states, 1348 states have (on average 1.3048961424332344) internal successors, (1759), 1386 states have internal predecessors, (1759), 565 states have call successors, (565), 91 states have call predecessors, (565), 90 states have return successors, (559), 545 states have call predecessors, (559), 559 states have call successors, (559) [2021-11-17 10:15:08,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-17 10:15:08,302 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 10:15:08,303 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 10:15:08,304 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 10:15:08,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 10:15:08,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1507417581, now seen corresponding path program 1 times [2021-11-17 10:15:08,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 10:15:08,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606998665] [2021-11-17 10:15:08,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 10:15:08,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 10:15:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:08,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 10:15:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:08,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:08,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 10:15:08,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:08,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:08,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 10:15:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:08,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:08,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:08,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 10:15:08,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:08,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:08,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 10:15:08,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:08,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:08,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:08,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 10:15:08,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:08,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:08,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 10:15:08,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:08,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:08,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:08,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 10:15:08,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:08,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:08,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 10:15:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:08,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 10:15:08,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:09,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 10:15:09,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:09,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 10:15:09,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:09,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 10:15:09,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:09,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 10:15:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:09,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 10:15:09,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:09,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 10:15:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:09,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-17 10:15:09,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:09,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-17 10:15:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:09,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 10:15:09,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:09,078 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2021-11-17 10:15:09,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 10:15:09,079 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606998665] [2021-11-17 10:15:09,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606998665] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 10:15:09,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 10:15:09,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 10:15:09,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830066044] [2021-11-17 10:15:09,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 10:15:09,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 10:15:09,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 10:15:09,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 10:15:09,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 10:15:09,112 INFO L87 Difference]: Start difference. First operand has 2004 states, 1348 states have (on average 1.3048961424332344) internal successors, (1759), 1386 states have internal predecessors, (1759), 565 states have call successors, (565), 91 states have call predecessors, (565), 90 states have return successors, (559), 545 states have call predecessors, (559), 559 states have call successors, (559) Second operand has 5 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 4 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2021-11-17 10:15:11,839 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 10:15:12,925 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 10:15:17,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 10:15:17,628 INFO L93 Difference]: Finished difference Result 5792 states and 8422 transitions. [2021-11-17 10:15:17,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 10:15:17,630 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 4 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 170 [2021-11-17 10:15:17,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 10:15:17,673 INFO L225 Difference]: With dead ends: 5792 [2021-11-17 10:15:17,674 INFO L226 Difference]: Without dead ends: 3710 [2021-11-17 10:15:17,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-17 10:15:17,692 INFO L933 BasicCegarLoop]: 3081 mSDtfsCounter, 4319 mSDsluCounter, 3750 mSDsCounter, 0 mSdLazyCounter, 3091 mSolverCounterSat, 3484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4612 SdHoareTripleChecker+Valid, 6831 SdHoareTripleChecker+Invalid, 6575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3484 IncrementalHoareTripleChecker+Valid, 3091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2021-11-17 10:15:17,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4612 Valid, 6831 Invalid, 6575 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3484 Valid, 3091 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2021-11-17 10:15:17,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3710 states. [2021-11-17 10:15:17,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3710 to 3687. [2021-11-17 10:15:17,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3687 states, 2489 states have (on average 1.2936922458818803) internal successors, (3220), 2566 states have internal predecessors, (3220), 1020 states have call successors, (1020), 175 states have call predecessors, (1020), 177 states have return successors, (1039), 989 states have call predecessors, (1039), 1020 states have call successors, (1039) [2021-11-17 10:15:17,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3687 states to 3687 states and 5279 transitions. [2021-11-17 10:15:17,925 INFO L78 Accepts]: Start accepts. Automaton has 3687 states and 5279 transitions. Word has length 170 [2021-11-17 10:15:17,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 10:15:17,928 INFO L470 AbstractCegarLoop]: Abstraction has 3687 states and 5279 transitions. [2021-11-17 10:15:17,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 4 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2021-11-17 10:15:17,928 INFO L276 IsEmpty]: Start isEmpty. Operand 3687 states and 5279 transitions. [2021-11-17 10:15:17,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-17 10:15:17,938 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 10:15:17,938 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 10:15:17,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 10:15:17,938 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 10:15:17,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 10:15:17,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1262485238, now seen corresponding path program 1 times [2021-11-17 10:15:17,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 10:15:17,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865055376] [2021-11-17 10:15:17,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 10:15:17,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 10:15:18,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:18,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 10:15:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:18,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:18,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 10:15:18,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:18,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:18,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:18,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 10:15:18,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:18,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:18,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:18,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 10:15:18,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:18,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:18,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:18,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 10:15:18,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:18,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:18,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:18,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 10:15:18,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:18,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:18,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 10:15:18,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:18,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:18,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:18,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 10:15:18,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:18,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:18,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:18,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 10:15:18,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:18,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 10:15:18,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:18,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 10:15:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:18,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 10:15:18,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:18,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 10:15:18,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:18,204 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-17 10:15:18,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 10:15:18,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865055376] [2021-11-17 10:15:18,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865055376] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 10:15:18,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 10:15:18,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 10:15:18,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505452905] [2021-11-17 10:15:18,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 10:15:18,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 10:15:18,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 10:15:18,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 10:15:18,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 10:15:18,210 INFO L87 Difference]: Start difference. First operand 3687 states and 5279 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-17 10:15:20,232 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 10:15:25,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 10:15:25,557 INFO L93 Difference]: Finished difference Result 10362 states and 14897 transitions. [2021-11-17 10:15:25,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 10:15:25,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 157 [2021-11-17 10:15:25,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 10:15:25,596 INFO L225 Difference]: With dead ends: 10362 [2021-11-17 10:15:25,596 INFO L226 Difference]: Without dead ends: 6696 [2021-11-17 10:15:25,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-17 10:15:25,616 INFO L933 BasicCegarLoop]: 2903 mSDtfsCounter, 3569 mSDsluCounter, 3935 mSDsCounter, 0 mSdLazyCounter, 3320 mSolverCounterSat, 2999 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3894 SdHoareTripleChecker+Valid, 6838 SdHoareTripleChecker+Invalid, 6320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2999 IncrementalHoareTripleChecker+Valid, 3320 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2021-11-17 10:15:25,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3894 Valid, 6838 Invalid, 6320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2999 Valid, 3320 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2021-11-17 10:15:25,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6696 states. [2021-11-17 10:15:25,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6696 to 6330. [2021-11-17 10:15:25,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6330 states, 4237 states have (on average 1.290299740382346) internal successors, (5467), 4370 states have internal predecessors, (5467), 1784 states have call successors, (1784), 306 states have call predecessors, (1784), 308 states have return successors, (1803), 1733 states have call predecessors, (1803), 1784 states have call successors, (1803) [2021-11-17 10:15:25,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6330 states to 6330 states and 9054 transitions. [2021-11-17 10:15:25,904 INFO L78 Accepts]: Start accepts. Automaton has 6330 states and 9054 transitions. Word has length 157 [2021-11-17 10:15:25,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 10:15:25,906 INFO L470 AbstractCegarLoop]: Abstraction has 6330 states and 9054 transitions. [2021-11-17 10:15:25,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-17 10:15:25,906 INFO L276 IsEmpty]: Start isEmpty. Operand 6330 states and 9054 transitions. [2021-11-17 10:15:25,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-11-17 10:15:25,913 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 10:15:25,913 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 10:15:25,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 10:15:25,913 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 10:15:25,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 10:15:25,914 INFO L85 PathProgramCache]: Analyzing trace with hash 69868049, now seen corresponding path program 1 times [2021-11-17 10:15:25,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 10:15:25,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600136541] [2021-11-17 10:15:25,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 10:15:25,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 10:15:25,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 10:15:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:26,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 10:15:26,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:26,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 10:15:26,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 10:15:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:26,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 10:15:26,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 10:15:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:26,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 10:15:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 10:15:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:26,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 10:15:26,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-17 10:15:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 10:15:26,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:26,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 10:15:26,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 10:15:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 10:15:26,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 10:15:26,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 10:15:26,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 10:15:26,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-17 10:15:26,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:26,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 10:15:26,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 10:15:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:26,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 10:15:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 10:15:26,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-11-17 10:15:26,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:26,271 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2021-11-17 10:15:26,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 10:15:26,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600136541] [2021-11-17 10:15:26,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600136541] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 10:15:26,271 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 10:15:26,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 10:15:26,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354076134] [2021-11-17 10:15:26,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 10:15:26,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 10:15:26,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 10:15:26,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 10:15:26,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-17 10:15:26,276 INFO L87 Difference]: Start difference. First operand 6330 states and 9054 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 4 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2021-11-17 10:15:28,306 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 10:15:36,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 10:15:36,528 INFO L93 Difference]: Finished difference Result 17523 states and 24974 transitions. [2021-11-17 10:15:36,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-17 10:15:36,528 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 4 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) Word has length 223 [2021-11-17 10:15:36,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 10:15:36,582 INFO L225 Difference]: With dead ends: 17523 [2021-11-17 10:15:36,583 INFO L226 Difference]: Without dead ends: 11214 [2021-11-17 10:15:36,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=192, Invalid=564, Unknown=0, NotChecked=0, Total=756 [2021-11-17 10:15:36,614 INFO L933 BasicCegarLoop]: 2535 mSDtfsCounter, 6386 mSDsluCounter, 4653 mSDsCounter, 0 mSdLazyCounter, 5232 mSolverCounterSat, 6167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6586 SdHoareTripleChecker+Valid, 7188 SdHoareTripleChecker+Invalid, 11399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6167 IncrementalHoareTripleChecker+Valid, 5232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2021-11-17 10:15:36,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6586 Valid, 7188 Invalid, 11399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6167 Valid, 5232 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2021-11-17 10:15:36,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11214 states. [2021-11-17 10:15:36,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11214 to 10658. [2021-11-17 10:15:36,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10658 states, 7204 states have (on average 1.2835924486396446) internal successors, (9247), 7426 states have internal predecessors, (9247), 2895 states have call successors, (2895), 568 states have call predecessors, (2895), 558 states have return successors, (2953), 2784 states have call predecessors, (2953), 2895 states have call successors, (2953) [2021-11-17 10:15:37,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10658 states to 10658 states and 15095 transitions. [2021-11-17 10:15:37,118 INFO L78 Accepts]: Start accepts. Automaton has 10658 states and 15095 transitions. Word has length 223 [2021-11-17 10:15:37,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 10:15:37,118 INFO L470 AbstractCegarLoop]: Abstraction has 10658 states and 15095 transitions. [2021-11-17 10:15:37,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 4 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2021-11-17 10:15:37,119 INFO L276 IsEmpty]: Start isEmpty. Operand 10658 states and 15095 transitions. [2021-11-17 10:15:37,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-11-17 10:15:37,133 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 10:15:37,133 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 10:15:37,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 10:15:37,134 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 10:15:37,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 10:15:37,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1114337828, now seen corresponding path program 1 times [2021-11-17 10:15:37,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 10:15:37,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410010188] [2021-11-17 10:15:37,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 10:15:37,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 10:15:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 10:15:37,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 10:15:37,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:37,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 10:15:37,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:37,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 10:15:37,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:37,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 10:15:37,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:37,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 10:15:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:37,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 10:15:37,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 10:15:37,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:37,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 10:15:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 10:15:37,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 10:15:37,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 10:15:37,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-11-17 10:15:37,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 10:15:37,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 10:15:37,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:37,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 10:15:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 10:15:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 10:15:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 10:15:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 10:15:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 10:15:37,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:37,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 10:15:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 10:15:37,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 10:15:37,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:37,383 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2021-11-17 10:15:37,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 10:15:37,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410010188] [2021-11-17 10:15:37,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410010188] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 10:15:37,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 10:15:37,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 10:15:37,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639329044] [2021-11-17 10:15:37,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 10:15:37,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 10:15:37,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 10:15:37,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 10:15:37,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-17 10:15:37,385 INFO L87 Difference]: Start difference. First operand 10658 states and 15095 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 4 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2021-11-17 10:15:39,856 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 10:15:47,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 10:15:47,605 INFO L93 Difference]: Finished difference Result 30568 states and 43480 transitions. [2021-11-17 10:15:47,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-17 10:15:47,605 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 4 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 226 [2021-11-17 10:15:47,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 10:15:47,724 INFO L225 Difference]: With dead ends: 30568 [2021-11-17 10:15:47,724 INFO L226 Difference]: Without dead ends: 19931 [2021-11-17 10:15:47,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=222, Invalid=708, Unknown=0, NotChecked=0, Total=930 [2021-11-17 10:15:47,763 INFO L933 BasicCegarLoop]: 2677 mSDtfsCounter, 6620 mSDsluCounter, 5194 mSDsCounter, 0 mSdLazyCounter, 5271 mSolverCounterSat, 6662 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6884 SdHoareTripleChecker+Valid, 7871 SdHoareTripleChecker+Invalid, 11934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6662 IncrementalHoareTripleChecker+Valid, 5271 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2021-11-17 10:15:47,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6884 Valid, 7871 Invalid, 11934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6662 Valid, 5271 Invalid, 1 Unknown, 0 Unchecked, 9.2s Time] [2021-11-17 10:15:47,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19931 states. [2021-11-17 10:15:48,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19931 to 18999. [2021-11-17 10:15:48,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18999 states, 12801 states have (on average 1.2877900164049683) internal successors, (16485), 13213 states have internal predecessors, (16485), 5159 states have call successors, (5159), 1056 states have call predecessors, (5159), 1038 states have return successors, (5279), 4945 states have call predecessors, (5279), 5159 states have call successors, (5279) [2021-11-17 10:15:48,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18999 states to 18999 states and 26923 transitions. [2021-11-17 10:15:48,642 INFO L78 Accepts]: Start accepts. Automaton has 18999 states and 26923 transitions. Word has length 226 [2021-11-17 10:15:48,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 10:15:48,643 INFO L470 AbstractCegarLoop]: Abstraction has 18999 states and 26923 transitions. [2021-11-17 10:15:48,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 4 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2021-11-17 10:15:48,644 INFO L276 IsEmpty]: Start isEmpty. Operand 18999 states and 26923 transitions. [2021-11-17 10:15:48,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-11-17 10:15:48,650 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 10:15:48,650 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 10:15:48,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 10:15:48,651 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 10:15:48,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 10:15:48,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1711833284, now seen corresponding path program 1 times [2021-11-17 10:15:48,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 10:15:48,652 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927132342] [2021-11-17 10:15:48,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 10:15:48,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 10:15:48,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 10:15:48,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:48,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 10:15:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:48,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 10:15:48,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 10:15:48,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:48,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 10:15:48,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:48,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 10:15:48,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:48,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 10:15:48,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:48,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 10:15:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 10:15:48,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 10:15:48,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 10:15:48,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 10:15:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 10:15:48,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 10:15:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:48,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 10:15:48,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 10:15:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 10:15:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 10:15:48,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 10:15:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-17 10:15:48,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:48,861 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2021-11-17 10:15:48,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 10:15:48,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927132342] [2021-11-17 10:15:48,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927132342] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 10:15:48,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 10:15:48,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 10:15:48,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478665489] [2021-11-17 10:15:48,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 10:15:48,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 10:15:48,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 10:15:48,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 10:15:48,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 10:15:48,863 INFO L87 Difference]: Start difference. First operand 18999 states and 26923 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-17 10:15:50,887 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 10:15:52,012 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 10:15:57,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 10:15:57,876 INFO L93 Difference]: Finished difference Result 46337 states and 65809 transitions. [2021-11-17 10:15:57,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 10:15:57,877 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 224 [2021-11-17 10:15:57,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 10:15:57,986 INFO L225 Difference]: With dead ends: 46337 [2021-11-17 10:15:57,986 INFO L226 Difference]: Without dead ends: 27359 [2021-11-17 10:15:58,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-17 10:15:58,053 INFO L933 BasicCegarLoop]: 4267 mSDtfsCounter, 2703 mSDsluCounter, 4868 mSDsCounter, 0 mSdLazyCounter, 3758 mSolverCounterSat, 2218 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3029 SdHoareTripleChecker+Valid, 9135 SdHoareTripleChecker+Invalid, 5977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2218 IncrementalHoareTripleChecker+Valid, 3758 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2021-11-17 10:15:58,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3029 Valid, 9135 Invalid, 5977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2218 Valid, 3758 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2021-11-17 10:15:58,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27359 states. [2021-11-17 10:15:58,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27359 to 26167. [2021-11-17 10:15:58,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26167 states, 17572 states have (on average 1.283633052583656) internal successors, (22556), 18128 states have internal predecessors, (22556), 7146 states have call successors, (7146), 1474 states have call predecessors, (7146), 1448 states have return successors, (7266), 6866 states have call predecessors, (7266), 7146 states have call successors, (7266) [2021-11-17 10:15:59,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26167 states to 26167 states and 36968 transitions. [2021-11-17 10:15:59,053 INFO L78 Accepts]: Start accepts. Automaton has 26167 states and 36968 transitions. Word has length 224 [2021-11-17 10:15:59,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 10:15:59,054 INFO L470 AbstractCegarLoop]: Abstraction has 26167 states and 36968 transitions. [2021-11-17 10:15:59,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-17 10:15:59,054 INFO L276 IsEmpty]: Start isEmpty. Operand 26167 states and 36968 transitions. [2021-11-17 10:15:59,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-11-17 10:15:59,059 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 10:15:59,060 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 10:15:59,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 10:15:59,060 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 10:15:59,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 10:15:59,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1096617870, now seen corresponding path program 1 times [2021-11-17 10:15:59,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 10:15:59,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93893400] [2021-11-17 10:15:59,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 10:15:59,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 10:15:59,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 10:15:59,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:59,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 10:15:59,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 10:15:59,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:59,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 10:15:59,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:59,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 10:15:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 10:15:59,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 10:15:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:59,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 10:15:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:59,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 10:15:59,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 10:15:59,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 10:15:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 10:15:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-11-17 10:15:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:59,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 10:15:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 10:15:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 10:15:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 10:15:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 10:15:59,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 10:15:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 10:15:59,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:59,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-11-17 10:15:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-11-17 10:15:59,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:15:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 10:15:59,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-17 10:15:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-11-17 10:15:59,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:15:59,606 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2021-11-17 10:15:59,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 10:15:59,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93893400] [2021-11-17 10:15:59,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93893400] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 10:15:59,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 10:15:59,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 10:15:59,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244822585] [2021-11-17 10:15:59,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 10:15:59,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 10:15:59,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 10:15:59,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 10:15:59,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-17 10:15:59,608 INFO L87 Difference]: Start difference. First operand 26167 states and 36968 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 3 states have internal predecessors, (113), 4 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-17 10:16:01,628 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 10:16:03,228 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 10:16:11,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 10:16:11,687 INFO L93 Difference]: Finished difference Result 80643 states and 114270 transitions. [2021-11-17 10:16:11,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-17 10:16:11,688 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 3 states have internal predecessors, (113), 4 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) Word has length 246 [2021-11-17 10:16:11,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 10:16:11,929 INFO L225 Difference]: With dead ends: 80643 [2021-11-17 10:16:11,929 INFO L226 Difference]: Without dead ends: 54497 [2021-11-17 10:16:12,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=222, Invalid=708, Unknown=0, NotChecked=0, Total=930 [2021-11-17 10:16:12,168 INFO L933 BasicCegarLoop]: 3436 mSDtfsCounter, 5740 mSDsluCounter, 5655 mSDsCounter, 0 mSdLazyCounter, 6039 mSolverCounterSat, 5936 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6064 SdHoareTripleChecker+Valid, 9091 SdHoareTripleChecker+Invalid, 11976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5936 IncrementalHoareTripleChecker+Valid, 6039 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2021-11-17 10:16:12,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6064 Valid, 9091 Invalid, 11976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5936 Valid, 6039 Invalid, 1 Unknown, 0 Unchecked, 10.3s Time] [2021-11-17 10:16:12,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54497 states. [2021-11-17 10:16:13,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54497 to 52083. [2021-11-17 10:16:13,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52083 states, 34926 states have (on average 1.283341922922751) internal successors, (44822), 36074 states have internal predecessors, (44822), 14260 states have call successors, (14260), 2948 states have call predecessors, (14260), 2896 states have return successors, (14500), 13664 states have call predecessors, (14500), 14260 states have call successors, (14500) [2021-11-17 10:16:14,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52083 states to 52083 states and 73582 transitions. [2021-11-17 10:16:14,121 INFO L78 Accepts]: Start accepts. Automaton has 52083 states and 73582 transitions. Word has length 246 [2021-11-17 10:16:14,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 10:16:14,122 INFO L470 AbstractCegarLoop]: Abstraction has 52083 states and 73582 transitions. [2021-11-17 10:16:14,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 3 states have internal predecessors, (113), 4 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-17 10:16:14,122 INFO L276 IsEmpty]: Start isEmpty. Operand 52083 states and 73582 transitions. [2021-11-17 10:16:14,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2021-11-17 10:16:14,132 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 10:16:14,132 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 10:16:14,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 10:16:14,133 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 10:16:14,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 10:16:14,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1456387236, now seen corresponding path program 1 times [2021-11-17 10:16:14,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 10:16:14,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401717656] [2021-11-17 10:16:14,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 10:16:14,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 10:16:14,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 10:16:14,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 10:16:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:14,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 10:16:14,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:14,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 10:16:14,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 10:16:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:14,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 10:16:14,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 10:16:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 10:16:14,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:14,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 10:16:14,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 10:16:14,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 10:16:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 10:16:14,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 10:16:14,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 10:16:14,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 10:16:14,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:14,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 10:16:14,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 10:16:14,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 10:16:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-11-17 10:16:14,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 10:16:14,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-11-17 10:16:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-11-17 10:16:14,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:14,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-11-17 10:16:14,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 10:16:14,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:14,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 10:16:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 10:16:14,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-11-17 10:16:14,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:14,601 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2021-11-17 10:16:14,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 10:16:14,601 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401717656] [2021-11-17 10:16:14,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401717656] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 10:16:14,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 10:16:14,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 10:16:14,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663773722] [2021-11-17 10:16:14,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 10:16:14,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 10:16:14,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 10:16:14,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 10:16:14,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-17 10:16:14,603 INFO L87 Difference]: Start difference. First operand 52083 states and 73582 transitions. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 3 states have internal predecessors, (119), 4 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) [2021-11-17 10:16:17,236 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 10:16:19,299 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 10:16:25,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 10:16:25,120 INFO L93 Difference]: Finished difference Result 106981 states and 151149 transitions. [2021-11-17 10:16:25,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-17 10:16:25,121 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 3 states have internal predecessors, (119), 4 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) Word has length 266 [2021-11-17 10:16:25,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 10:16:25,380 INFO L225 Difference]: With dead ends: 106981 [2021-11-17 10:16:25,380 INFO L226 Difference]: Without dead ends: 54919 [2021-11-17 10:16:25,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2021-11-17 10:16:25,531 INFO L933 BasicCegarLoop]: 2428 mSDtfsCounter, 2787 mSDsluCounter, 5151 mSDsCounter, 0 mSdLazyCounter, 3910 mSolverCounterSat, 3147 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2888 SdHoareTripleChecker+Valid, 7579 SdHoareTripleChecker+Invalid, 7058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3147 IncrementalHoareTripleChecker+Valid, 3910 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2021-11-17 10:16:25,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2888 Valid, 7579 Invalid, 7058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3147 Valid, 3910 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2021-11-17 10:16:25,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54919 states. [2021-11-17 10:16:27,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54919 to 52555. [2021-11-17 10:16:27,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52555 states, 35269 states have (on average 1.2807281181774364) internal successors, (45170), 36417 states have internal predecessors, (45170), 14277 states have call successors, (14277), 3060 states have call predecessors, (14277), 3008 states have return successors, (14517), 13681 states have call predecessors, (14517), 14277 states have call successors, (14517) [2021-11-17 10:16:27,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52555 states to 52555 states and 73964 transitions. [2021-11-17 10:16:27,825 INFO L78 Accepts]: Start accepts. Automaton has 52555 states and 73964 transitions. Word has length 266 [2021-11-17 10:16:27,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 10:16:27,826 INFO L470 AbstractCegarLoop]: Abstraction has 52555 states and 73964 transitions. [2021-11-17 10:16:27,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 3 states have internal predecessors, (119), 4 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) [2021-11-17 10:16:27,826 INFO L276 IsEmpty]: Start isEmpty. Operand 52555 states and 73964 transitions. [2021-11-17 10:16:27,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2021-11-17 10:16:27,841 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 10:16:27,842 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 9, 9, 9, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 10:16:27,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 10:16:27,842 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 10:16:27,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 10:16:27,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1101206974, now seen corresponding path program 1 times [2021-11-17 10:16:27,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 10:16:27,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568446431] [2021-11-17 10:16:27,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 10:16:27,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 10:16:27,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:27,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 10:16:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:27,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:27,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 10:16:28,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 10:16:28,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:28,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 10:16:28,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:28,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 10:16:28,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:28,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 10:16:28,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 10:16:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:28,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 10:16:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 10:16:28,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 10:16:28,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 10:16:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 10:16:28,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 10:16:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 10:16:28,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:28,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 10:16:28,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 10:16:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 10:16:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:28,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 10:16:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 10:16:28,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 10:16:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 10:16:28,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 10:16:28,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 10:16:28,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 10:16:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 10:16:28,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-17 10:16:28,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 10:16:28,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-11-17 10:16:28,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:28,169 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2021-11-17 10:16:28,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 10:16:28,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568446431] [2021-11-17 10:16:28,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568446431] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 10:16:28,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 10:16:28,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 10:16:28,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909454665] [2021-11-17 10:16:28,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 10:16:28,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 10:16:28,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 10:16:28,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 10:16:28,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 10:16:28,172 INFO L87 Difference]: Start difference. First operand 52555 states and 73964 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-17 10:16:35,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 10:16:35,611 INFO L93 Difference]: Finished difference Result 122167 states and 172288 transitions. [2021-11-17 10:16:35,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 10:16:35,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 298 [2021-11-17 10:16:35,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 10:16:35,980 INFO L225 Difference]: With dead ends: 122167 [2021-11-17 10:16:35,981 INFO L226 Difference]: Without dead ends: 69689 [2021-11-17 10:16:36,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-17 10:16:36,197 INFO L933 BasicCegarLoop]: 4279 mSDtfsCounter, 2698 mSDsluCounter, 4881 mSDsCounter, 0 mSdLazyCounter, 3749 mSolverCounterSat, 2191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3025 SdHoareTripleChecker+Valid, 9160 SdHoareTripleChecker+Invalid, 5940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2191 IncrementalHoareTripleChecker+Valid, 3749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-11-17 10:16:36,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3025 Valid, 9160 Invalid, 5940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2191 Valid, 3749 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2021-11-17 10:16:36,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69689 states. [2021-11-17 10:16:38,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69689 to 66787. [2021-11-17 10:16:38,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66787 states, 44735 states have (on average 1.2789091315524757) internal successors, (57212), 46183 states have internal predecessors, (57212), 18195 states have call successors, (18195), 3924 states have call predecessors, (18195), 3856 states have return successors, (18435), 17455 states have call predecessors, (18435), 18195 states have call successors, (18435) [2021-11-17 10:16:39,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66787 states to 66787 states and 93842 transitions. [2021-11-17 10:16:39,244 INFO L78 Accepts]: Start accepts. Automaton has 66787 states and 93842 transitions. Word has length 298 [2021-11-17 10:16:39,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 10:16:39,246 INFO L470 AbstractCegarLoop]: Abstraction has 66787 states and 93842 transitions. [2021-11-17 10:16:39,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-17 10:16:39,247 INFO L276 IsEmpty]: Start isEmpty. Operand 66787 states and 93842 transitions. [2021-11-17 10:16:39,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2021-11-17 10:16:39,260 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 10:16:39,261 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 9, 9, 9, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 10:16:39,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 10:16:39,261 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 10:16:39,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 10:16:39,261 INFO L85 PathProgramCache]: Analyzing trace with hash 369239548, now seen corresponding path program 1 times [2021-11-17 10:16:39,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 10:16:39,262 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656665129] [2021-11-17 10:16:39,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 10:16:39,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 10:16:39,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 10:16:39,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:39,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 10:16:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:39,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 10:16:39,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:39,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 10:16:39,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 10:16:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:39,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 10:16:39,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 10:16:39,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:39,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 10:16:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 10:16:39,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 10:16:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 10:16:39,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 10:16:39,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 10:16:39,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 10:16:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:39,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 10:16:39,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 10:16:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 10:16:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:39,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 10:16:39,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 10:16:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 10:16:39,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 10:16:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 10:16:39,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 10:16:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 10:16:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 10:16:39,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-17 10:16:39,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 10:16:39,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-11-17 10:16:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:39,751 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 623 trivial. 0 not checked. [2021-11-17 10:16:39,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 10:16:39,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656665129] [2021-11-17 10:16:39,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656665129] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 10:16:39,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 10:16:39,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 10:16:39,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175831134] [2021-11-17 10:16:39,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 10:16:39,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 10:16:39,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 10:16:39,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 10:16:39,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-17 10:16:39,754 INFO L87 Difference]: Start difference. First operand 66787 states and 93842 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-17 10:16:47,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 10:16:47,437 INFO L93 Difference]: Finished difference Result 161913 states and 230497 transitions. [2021-11-17 10:16:47,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 10:16:47,438 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) Word has length 298 [2021-11-17 10:16:47,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 10:16:48,057 INFO L225 Difference]: With dead ends: 161913 [2021-11-17 10:16:48,057 INFO L226 Difference]: Without dead ends: 95203 [2021-11-17 10:16:48,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-17 10:16:48,272 INFO L933 BasicCegarLoop]: 3290 mSDtfsCounter, 2147 mSDsluCounter, 10182 mSDsCounter, 0 mSdLazyCounter, 4840 mSolverCounterSat, 1644 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2479 SdHoareTripleChecker+Valid, 13472 SdHoareTripleChecker+Invalid, 6484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1644 IncrementalHoareTripleChecker+Valid, 4840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-11-17 10:16:48,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2479 Valid, 13472 Invalid, 6484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1644 Valid, 4840 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2021-11-17 10:16:48,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95203 states. [2021-11-17 10:16:50,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95203 to 66851. [2021-11-17 10:16:50,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66851 states, 44783 states have (on average 1.2786101869012796) internal successors, (57260), 46231 states have internal predecessors, (57260), 18195 states have call successors, (18195), 3924 states have call predecessors, (18195), 3872 states have return successors, (18467), 17471 states have call predecessors, (18467), 18195 states have call successors, (18467) [2021-11-17 10:16:51,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66851 states to 66851 states and 93922 transitions. [2021-11-17 10:16:51,298 INFO L78 Accepts]: Start accepts. Automaton has 66851 states and 93922 transitions. Word has length 298 [2021-11-17 10:16:51,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 10:16:51,318 INFO L470 AbstractCegarLoop]: Abstraction has 66851 states and 93922 transitions. [2021-11-17 10:16:51,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-17 10:16:51,318 INFO L276 IsEmpty]: Start isEmpty. Operand 66851 states and 93922 transitions. [2021-11-17 10:16:51,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2021-11-17 10:16:51,344 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 10:16:51,345 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 9, 9, 9, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 10:16:51,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 10:16:51,345 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 10:16:51,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 10:16:51,346 INFO L85 PathProgramCache]: Analyzing trace with hash 733298748, now seen corresponding path program 1 times [2021-11-17 10:16:51,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 10:16:51,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450357538] [2021-11-17 10:16:51,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 10:16:51,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 10:16:51,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 10:16:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:51,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 10:16:51,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:51,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 10:16:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:51,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 10:16:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:51,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 10:16:51,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:51,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 10:16:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:51,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 10:16:51,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 10:16:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 10:16:51,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 10:16:51,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 10:16:51,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 10:16:51,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 10:16:51,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 10:16:51,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:51,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 10:16:51,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 10:16:51,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 10:16:51,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:51,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 10:16:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 10:16:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 10:16:51,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:16:51,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 10:16:51,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 10:16:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 10:16:51,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 10:16:51,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 10:16:51,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:51,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-17 10:16:51,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:52,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 10:16:52,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:52,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-11-17 10:16:52,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:16:52,022 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 623 trivial. 0 not checked. [2021-11-17 10:16:52,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 10:16:52,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450357538] [2021-11-17 10:16:52,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450357538] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 10:16:52,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 10:16:52,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 10:16:52,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450982707] [2021-11-17 10:16:52,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 10:16:52,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 10:16:52,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 10:16:52,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 10:16:52,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 10:16:52,025 INFO L87 Difference]: Start difference. First operand 66851 states and 93922 transitions. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-17 10:16:53,112 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 10:16:59,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 10:16:59,776 INFO L93 Difference]: Finished difference Result 136509 states and 192657 transitions. [2021-11-17 10:16:59,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 10:16:59,777 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) Word has length 298 [2021-11-17 10:16:59,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 10:17:00,336 INFO L225 Difference]: With dead ends: 136509 [2021-11-17 10:17:00,337 INFO L226 Difference]: Without dead ends: 69735 [2021-11-17 10:17:00,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-17 10:17:00,585 INFO L933 BasicCegarLoop]: 2492 mSDtfsCounter, 3256 mSDsluCounter, 2900 mSDsCounter, 0 mSdLazyCounter, 3364 mSolverCounterSat, 2076 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3555 SdHoareTripleChecker+Valid, 5392 SdHoareTripleChecker+Invalid, 5440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2076 IncrementalHoareTripleChecker+Valid, 3364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-11-17 10:17:00,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3555 Valid, 5392 Invalid, 5440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2076 Valid, 3364 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2021-11-17 10:17:00,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69735 states. [2021-11-17 10:17:02,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69735 to 66851. [2021-11-17 10:17:03,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66851 states, 44783 states have (on average 1.2774490319987495) internal successors, (57208), 46231 states have internal predecessors, (57208), 18195 states have call successors, (18195), 3924 states have call predecessors, (18195), 3872 states have return successors, (18467), 17471 states have call predecessors, (18467), 18195 states have call successors, (18467) [2021-11-17 10:17:03,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66851 states to 66851 states and 93870 transitions. [2021-11-17 10:17:03,342 INFO L78 Accepts]: Start accepts. Automaton has 66851 states and 93870 transitions. Word has length 298 [2021-11-17 10:17:03,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 10:17:03,343 INFO L470 AbstractCegarLoop]: Abstraction has 66851 states and 93870 transitions. [2021-11-17 10:17:03,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-17 10:17:03,343 INFO L276 IsEmpty]: Start isEmpty. Operand 66851 states and 93870 transitions. [2021-11-17 10:17:03,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2021-11-17 10:17:03,367 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 10:17:03,367 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 9, 9, 9, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 10:17:03,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 10:17:03,368 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 10:17:03,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 10:17:03,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1650179086, now seen corresponding path program 1 times [2021-11-17 10:17:03,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 10:17:03,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416641037] [2021-11-17 10:17:03,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 10:17:03,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 10:17:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 10:17:03,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:17:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 10:17:03,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:17:03,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 10:17:03,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:17:03,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 10:17:03,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:17:03,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 10:17:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:17:03,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 10:17:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:17:03,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 10:17:03,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:17:03,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 10:17:03,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:17:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 10:17:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 10:17:03,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 10:17:03,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 10:17:03,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 10:17:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 10:17:03,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:17:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 10:17:03,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 10:17:03,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 10:17:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:17:03,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 10:17:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 10:17:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 10:17:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:17:03,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 10:17:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 10:17:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 10:17:03,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 10:17:03,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 10:17:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-17 10:17:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 10:17:03,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-11-17 10:17:03,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:03,777 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 623 trivial. 0 not checked. [2021-11-17 10:17:03,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 10:17:03,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416641037] [2021-11-17 10:17:03,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416641037] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 10:17:03,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 10:17:03,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 10:17:03,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908061778] [2021-11-17 10:17:03,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 10:17:03,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 10:17:03,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 10:17:03,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 10:17:03,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-17 10:17:03,780 INFO L87 Difference]: Start difference. First operand 66851 states and 93870 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-17 10:17:07,097 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 10:17:13,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 10:17:13,668 INFO L93 Difference]: Finished difference Result 136509 states and 192553 transitions. [2021-11-17 10:17:13,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 10:17:13,669 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) Word has length 299 [2021-11-17 10:17:13,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 10:17:13,985 INFO L225 Difference]: With dead ends: 136509 [2021-11-17 10:17:13,986 INFO L226 Difference]: Without dead ends: 69735 [2021-11-17 10:17:14,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-11-17 10:17:14,238 INFO L933 BasicCegarLoop]: 2500 mSDtfsCounter, 4678 mSDsluCounter, 2913 mSDsCounter, 0 mSdLazyCounter, 3372 mSolverCounterSat, 3882 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4678 SdHoareTripleChecker+Valid, 5413 SdHoareTripleChecker+Invalid, 7255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3882 IncrementalHoareTripleChecker+Valid, 3372 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-11-17 10:17:14,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4678 Valid, 5413 Invalid, 7255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3882 Valid, 3372 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2021-11-17 10:17:14,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69735 states. [2021-11-17 10:17:16,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69735 to 66851. [2021-11-17 10:17:16,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66851 states, 44783 states have (on average 1.2762878770962196) internal successors, (57156), 46231 states have internal predecessors, (57156), 18195 states have call successors, (18195), 3924 states have call predecessors, (18195), 3872 states have return successors, (18467), 17471 states have call predecessors, (18467), 18195 states have call successors, (18467) [2021-11-17 10:17:17,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66851 states to 66851 states and 93818 transitions. [2021-11-17 10:17:17,243 INFO L78 Accepts]: Start accepts. Automaton has 66851 states and 93818 transitions. Word has length 299 [2021-11-17 10:17:17,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 10:17:17,253 INFO L470 AbstractCegarLoop]: Abstraction has 66851 states and 93818 transitions. [2021-11-17 10:17:17,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-17 10:17:17,253 INFO L276 IsEmpty]: Start isEmpty. Operand 66851 states and 93818 transitions. [2021-11-17 10:17:17,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-11-17 10:17:17,264 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 10:17:17,264 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 9, 9, 9, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 10:17:17,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 10:17:17,265 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 10:17:17,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 10:17:17,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1885935992, now seen corresponding path program 1 times [2021-11-17 10:17:17,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 10:17:17,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910101047] [2021-11-17 10:17:17,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 10:17:17,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 10:17:17,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 10:17:17,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:17:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 10:17:17,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:17:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 10:17:17,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:17:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 10:17:17,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:17:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 10:17:17,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:17:17,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 10:17:17,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:17:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 10:17:17,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:17:17,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 10:17:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:17:17,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 10:17:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 10:17:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 10:17:17,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 10:17:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 10:17:17,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 10:17:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:17:17,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 10:17:17,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 10:17:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 10:17:17,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:17:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 10:17:17,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 10:17:17,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 10:17:17,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 10:17:17,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 10:17:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 10:17:17,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 10:17:17,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-11-17 10:17:17,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 10:17:17,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-17 10:17:17,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 10:17:17,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-11-17 10:17:17,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 10:17:17,560 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 623 trivial. 0 not checked. [2021-11-17 10:17:17,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 10:17:17,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910101047] [2021-11-17 10:17:17,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910101047] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 10:17:17,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 10:17:17,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 10:17:17,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854296749] [2021-11-17 10:17:17,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 10:17:17,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 10:17:17,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 10:17:17,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 10:17:17,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-17 10:17:17,562 INFO L87 Difference]: Start difference. First operand 66851 states and 93818 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27)