./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--via-ircc.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--via-ircc.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f665efa4a665554cf7543e013a29ff4c6ab086907b4fe7628b89c7f514f54a81 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 16:46:52,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 16:46:52,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 16:46:53,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 16:46:53,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 16:46:53,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 16:46:53,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 16:46:53,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 16:46:53,032 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 16:46:53,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 16:46:53,037 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 16:46:53,038 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 16:46:53,038 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 16:46:53,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 16:46:53,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 16:46:53,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 16:46:53,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 16:46:53,046 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 16:46:53,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 16:46:53,063 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 16:46:53,065 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 16:46:53,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 16:46:53,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 16:46:53,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 16:46:53,069 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 16:46:53,070 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 16:46:53,070 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 16:46:53,071 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 16:46:53,072 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 16:46:53,072 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 16:46:53,073 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 16:46:53,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 16:46:53,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 16:46:53,075 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 16:46:53,076 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 16:46:53,076 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 16:46:53,077 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 16:46:53,077 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 16:46:53,077 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 16:46:53,078 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 16:46:53,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 16:46:53,079 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 16:46:53,111 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 16:46:53,111 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 16:46:53,112 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 16:46:53,112 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 16:46:53,113 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 16:46:53,113 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 16:46:53,113 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 16:46:53,114 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 16:46:53,114 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 16:46:53,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 16:46:53,115 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 16:46:53,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 16:46:53,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 16:46:53,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 16:46:53,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 16:46:53,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 16:46:53,116 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 16:46:53,116 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 16:46:53,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 16:46:53,116 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 16:46:53,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 16:46:53,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:46:53,117 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 16:46:53,117 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 16:46:53,117 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 16:46:53,117 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 16:46:53,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 16:46:53,118 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 16:46:53,119 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 16:46:53,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 16:46:53,119 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 16:46:53,119 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f665efa4a665554cf7543e013a29ff4c6ab086907b4fe7628b89c7f514f54a81 [2021-12-21 16:46:53,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 16:46:53,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 16:46:53,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 16:46:53,315 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 16:46:53,315 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 16:46:53,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--via-ircc.ko-entry_point.cil.out.i [2021-12-21 16:46:53,374 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6292b2d88/6e0afa6254d643eb80ff31df4594bfeb/FLAG152cabe29 [2021-12-21 16:46:53,995 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 16:46:53,996 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--via-ircc.ko-entry_point.cil.out.i [2021-12-21 16:46:54,032 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6292b2d88/6e0afa6254d643eb80ff31df4594bfeb/FLAG152cabe29 [2021-12-21 16:46:54,143 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6292b2d88/6e0afa6254d643eb80ff31df4594bfeb [2021-12-21 16:46:54,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 16:46:54,147 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 16:46:54,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 16:46:54,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 16:46:54,150 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 16:46:54,151 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:46:54" (1/1) ... [2021-12-21 16:46:54,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b5175bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:46:54, skipping insertion in model container [2021-12-21 16:46:54,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:46:54" (1/1) ... [2021-12-21 16:46:54,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 16:46:54,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 16:46:55,612 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--via-ircc.ko-entry_point.cil.out.i[298813,298826] [2021-12-21 16:46:55,659 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:46:55,693 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 16:46:55,995 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--via-ircc.ko-entry_point.cil.out.i[298813,298826] [2021-12-21 16:46:56,004 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:46:56,065 INFO L208 MainTranslator]: Completed translation [2021-12-21 16:46:56,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:46:56 WrapperNode [2021-12-21 16:46:56,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 16:46:56,068 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 16:46:56,068 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 16:46:56,068 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 16:46:56,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:46:56" (1/1) ... [2021-12-21 16:46:56,144 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:46:56" (1/1) ... [2021-12-21 16:46:56,240 INFO L137 Inliner]: procedures = 237, calls = 2052, calls flagged for inlining = 107, calls inlined = 104, statements flattened = 4578 [2021-12-21 16:46:56,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 16:46:56,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 16:46:56,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 16:46:56,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 16:46:56,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:46:56" (1/1) ... [2021-12-21 16:46:56,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:46:56" (1/1) ... [2021-12-21 16:46:56,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:46:56" (1/1) ... [2021-12-21 16:46:56,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:46:56" (1/1) ... [2021-12-21 16:46:56,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:46:56" (1/1) ... [2021-12-21 16:46:56,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:46:56" (1/1) ... [2021-12-21 16:46:56,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:46:56" (1/1) ... [2021-12-21 16:46:56,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 16:46:56,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 16:46:56,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 16:46:56,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 16:46:56,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:46:56" (1/1) ... [2021-12-21 16:46:56,417 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:46:56,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:46:56,449 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 16:46:56,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 16:46:56,479 INFO L130 BoogieDeclarations]: Found specification of procedure ResetChip [2021-12-21 16:46:56,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ResetChip [2021-12-21 16:46:56,479 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_ioctl [2021-12-21 16:46:56,479 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_ioctl [2021-12-21 16:46:56,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 16:46:56,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 16:46:56,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 16:46:56,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 16:46:56,480 INFO L130 BoogieDeclarations]: Found specification of procedure RxCurCount [2021-12-21 16:46:56,480 INFO L138 BoogieDeclarations]: Found implementation of procedure RxCurCount [2021-12-21 16:46:56,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-21 16:46:56,480 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-21 16:46:56,480 INFO L130 BoogieDeclarations]: Found specification of procedure irda_device_txqueue_empty [2021-12-21 16:46:56,480 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_device_txqueue_empty [2021-12-21 16:46:56,481 INFO L130 BoogieDeclarations]: Found specification of procedure irda_setup_dma [2021-12-21 16:46:56,481 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_setup_dma [2021-12-21 16:46:56,481 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-21 16:46:56,481 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-21 16:46:56,481 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-21 16:46:56,481 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-21 16:46:56,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-21 16:46:56,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-21 16:46:56,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 16:46:56,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 16:46:56,482 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2021-12-21 16:46:56,482 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2021-12-21 16:46:56,482 INFO L130 BoogieDeclarations]: Found specification of procedure Sdelay [2021-12-21 16:46:56,482 INFO L138 BoogieDeclarations]: Found implementation of procedure Sdelay [2021-12-21 16:46:56,482 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-21 16:46:56,482 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-21 16:46:56,482 INFO L130 BoogieDeclarations]: Found specification of procedure CheckRegBit [2021-12-21 16:46:56,482 INFO L138 BoogieDeclarations]: Found implementation of procedure CheckRegBit [2021-12-21 16:46:56,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-21 16:46:56,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-21 16:46:56,483 INFO L130 BoogieDeclarations]: Found specification of procedure SetSIR [2021-12-21 16:46:56,483 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSIR [2021-12-21 16:46:56,483 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_speed [2021-12-21 16:46:56,484 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_speed [2021-12-21 16:46:56,484 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-21 16:46:56,484 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-21 16:46:56,484 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-21 16:46:56,484 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-21 16:46:56,484 INFO L130 BoogieDeclarations]: Found specification of procedure SetMaxRxPacketSize [2021-12-21 16:46:56,484 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMaxRxPacketSize [2021-12-21 16:46:56,484 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2021-12-21 16:46:56,484 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2021-12-21 16:46:56,485 INFO L130 BoogieDeclarations]: Found specification of procedure GetRecvByte [2021-12-21 16:46:56,485 INFO L138 BoogieDeclarations]: Found implementation of procedure GetRecvByte [2021-12-21 16:46:56,485 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-21 16:46:56,485 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-21 16:46:56,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 16:46:56,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 16:46:56,486 INFO L130 BoogieDeclarations]: Found specification of procedure SetPulseWidth [2021-12-21 16:46:56,486 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPulseWidth [2021-12-21 16:46:56,486 INFO L130 BoogieDeclarations]: Found specification of procedure Tdelay [2021-12-21 16:46:56,486 INFO L138 BoogieDeclarations]: Found implementation of procedure Tdelay [2021-12-21 16:46:56,487 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-12-21 16:46:56,487 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-12-21 16:46:56,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-21 16:46:56,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-21 16:46:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure hwreset [2021-12-21 16:46:56,488 INFO L138 BoogieDeclarations]: Found implementation of procedure hwreset [2021-12-21 16:46:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-21 16:46:56,488 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-21 16:46:56,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 16:46:56,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 16:46:56,489 INFO L130 BoogieDeclarations]: Found specification of procedure ClkTx [2021-12-21 16:46:56,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ClkTx [2021-12-21 16:46:56,489 INFO L130 BoogieDeclarations]: Found specification of procedure WriteLPCReg [2021-12-21 16:46:56,489 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteLPCReg [2021-12-21 16:46:56,489 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-21 16:46:56,489 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-21 16:46:56,490 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-12-21 16:46:56,490 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-12-21 16:46:56,490 INFO L130 BoogieDeclarations]: Found specification of procedure CommonInit [2021-12-21 16:46:56,490 INFO L138 BoogieDeclarations]: Found implementation of procedure CommonInit [2021-12-21 16:46:56,490 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-21 16:46:56,491 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-21 16:46:56,491 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-21 16:46:56,491 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-21 16:46:56,491 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-21 16:46:56,491 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-21 16:46:56,491 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_dongle_speed [2021-12-21 16:46:56,491 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_dongle_speed [2021-12-21 16:46:56,491 INFO L130 BoogieDeclarations]: Found specification of procedure ReadLPCReg [2021-12-21 16:46:56,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadLPCReg [2021-12-21 16:46:56,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 16:46:56,492 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma [2021-12-21 16:46:56,492 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma [2021-12-21 16:46:56,492 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_receive [2021-12-21 16:46:56,492 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_receive [2021-12-21 16:46:56,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 16:46:56,493 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_xmit [2021-12-21 16:46:56,493 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_xmit [2021-12-21 16:46:56,493 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-21 16:46:56,493 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-21 16:46:56,494 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_close [2021-12-21 16:46:56,494 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_close [2021-12-21 16:46:56,494 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-21 16:46:56,494 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-21 16:46:56,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 16:46:56,494 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-21 16:46:56,495 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-21 16:46:56,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-21 16:46:56,495 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-21 16:46:56,495 INFO L130 BoogieDeclarations]: Found specification of procedure CkRxRecv [2021-12-21 16:46:56,495 INFO L138 BoogieDeclarations]: Found implementation of procedure CkRxRecv [2021-12-21 16:46:56,495 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-12-21 16:46:56,495 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-12-21 16:46:56,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-21 16:46:56,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-21 16:46:56,496 INFO L130 BoogieDeclarations]: Found specification of procedure irda_get_next_speed [2021-12-21 16:46:56,496 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_get_next_speed [2021-12-21 16:46:56,496 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-21 16:46:56,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-21 16:46:56,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 16:46:56,496 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-12-21 16:46:56,497 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-12-21 16:46:56,497 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-12-21 16:46:56,499 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-12-21 16:46:56,499 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendByte [2021-12-21 16:46:56,499 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendByte [2021-12-21 16:46:56,499 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-12-21 16:46:56,500 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-12-21 16:46:56,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 16:46:56,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 16:46:56,501 INFO L130 BoogieDeclarations]: Found specification of procedure ReadReg [2021-12-21 16:46:56,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadReg [2021-12-21 16:46:56,505 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_open [2021-12-21 16:46:56,505 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_open [2021-12-21 16:46:56,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-21 16:46:56,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-21 16:46:56,505 INFO L130 BoogieDeclarations]: Found specification of procedure WriteRegBit [2021-12-21 16:46:56,505 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteRegBit [2021-12-21 16:46:56,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 16:46:56,506 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Indx [2021-12-21 16:46:56,506 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Indx [2021-12-21 16:46:56,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-21 16:46:56,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-21 16:46:56,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 16:46:56,506 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-21 16:46:56,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-21 16:46:56,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 16:46:56,506 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-12-21 16:46:56,506 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-12-21 16:46:56,507 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-21 16:46:56,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-21 16:46:56,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-21 16:46:56,507 INFO L130 BoogieDeclarations]: Found specification of procedure WriteReg [2021-12-21 16:46:56,507 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteReg [2021-12-21 16:46:56,507 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendPreambleCount [2021-12-21 16:46:56,507 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendPreambleCount [2021-12-21 16:46:56,507 INFO L130 BoogieDeclarations]: Found specification of procedure InitCard [2021-12-21 16:46:56,507 INFO L138 BoogieDeclarations]: Found implementation of procedure InitCard [2021-12-21 16:46:56,507 INFO L130 BoogieDeclarations]: Found specification of procedure SetTimer [2021-12-21 16:46:56,508 INFO L138 BoogieDeclarations]: Found implementation of procedure SetTimer [2021-12-21 16:46:56,508 INFO L130 BoogieDeclarations]: Found specification of procedure ActClk [2021-12-21 16:46:56,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ActClk [2021-12-21 16:46:56,508 INFO L130 BoogieDeclarations]: Found specification of procedure SetBaudRate [2021-12-21 16:46:56,508 INFO L138 BoogieDeclarations]: Found implementation of procedure SetBaudRate [2021-12-21 16:46:56,508 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Byte [2021-12-21 16:46:56,508 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Byte [2021-12-21 16:46:56,508 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-21 16:46:56,508 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-21 16:46:56,508 INFO L130 BoogieDeclarations]: Found specification of procedure request_dma [2021-12-21 16:46:56,508 INFO L138 BoogieDeclarations]: Found implementation of procedure request_dma [2021-12-21 16:46:56,509 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-21 16:46:56,509 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-21 16:46:56,509 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2021-12-21 16:46:56,509 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2021-12-21 16:46:56,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 16:46:56,509 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2021-12-21 16:46:56,509 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2021-12-21 16:46:56,509 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_open [2021-12-21 16:46:56,509 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_open [2021-12-21 16:46:56,509 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2021-12-21 16:46:56,510 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2021-12-21 16:46:56,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 16:46:56,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 16:46:56,947 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 16:46:56,950 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 16:46:57,185 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 16:47:01,063 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 16:47:01,079 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 16:47:01,080 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 16:47:01,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:47:01 BoogieIcfgContainer [2021-12-21 16:47:01,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 16:47:01,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 16:47:01,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 16:47:01,087 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 16:47:01,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 04:46:54" (1/3) ... [2021-12-21 16:47:01,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb26b54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:47:01, skipping insertion in model container [2021-12-21 16:47:01,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:46:56" (2/3) ... [2021-12-21 16:47:01,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb26b54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:47:01, skipping insertion in model container [2021-12-21 16:47:01,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:47:01" (3/3) ... [2021-12-21 16:47:01,089 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--via-ircc.ko-entry_point.cil.out.i [2021-12-21 16:47:01,092 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 16:47:01,092 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 16:47:01,135 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 16:47:01,139 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 16:47:01,140 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 16:47:01,172 INFO L276 IsEmpty]: Start isEmpty. Operand has 1842 states, 1142 states have (on average 1.3126094570928195) internal successors, (1499), 1173 states have internal predecessors, (1499), 618 states have call successors, (618), 81 states have call predecessors, (618), 80 states have return successors, (611), 600 states have call predecessors, (611), 611 states have call successors, (611) [2021-12-21 16:47:01,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-12-21 16:47:01,193 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:47:01,194 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-21 16:47:01,194 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:47:01,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:47:01,198 INFO L85 PathProgramCache]: Analyzing trace with hash -299152905, now seen corresponding path program 1 times [2021-12-21 16:47:01,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:47:01,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683328210] [2021-12-21 16:47:01,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:47:01,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:47:01,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:01,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:47:01,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:01,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:01,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:01,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:47:01,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:01,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:47:01,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:01,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:01,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:01,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:47:01,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:01,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:47:01,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:01,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:01,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:01,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:47:01,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:01,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:47:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:01,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:01,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:01,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:47:01,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:01,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:47:01,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:01,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:01,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:47:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:01,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-21 16:47:01,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:01,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-21 16:47:01,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:01,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-21 16:47:01,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:01,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 16:47:01,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:01,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-21 16:47:01,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:01,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:01,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:01,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-21 16:47:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:01,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-21 16:47:01,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:01,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:01,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:01,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-21 16:47:01,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:01,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-21 16:47:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:02,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:02,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:02,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:02,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:02,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 16:47:02,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:02,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:02,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:02,047 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-12-21 16:47:02,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:47:02,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683328210] [2021-12-21 16:47:02,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683328210] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:47:02,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:47:02,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:47:02,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772830320] [2021-12-21 16:47:02,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:47:02,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:47:02,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:47:02,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:47:02,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:47:02,078 INFO L87 Difference]: Start difference. First operand has 1842 states, 1142 states have (on average 1.3126094570928195) internal successors, (1499), 1173 states have internal predecessors, (1499), 618 states have call successors, (618), 81 states have call predecessors, (618), 80 states have return successors, (611), 600 states have call predecessors, (611), 611 states have call successors, (611) Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-21 16:47:12,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:47:12,070 INFO L93 Difference]: Finished difference Result 3738 states and 5584 transitions. [2021-12-21 16:47:12,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 16:47:12,080 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 195 [2021-12-21 16:47:12,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:47:12,110 INFO L225 Difference]: With dead ends: 3738 [2021-12-21 16:47:12,110 INFO L226 Difference]: Without dead ends: 1883 [2021-12-21 16:47:12,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:47:12,134 INFO L933 BasicCegarLoop]: 2271 mSDtfsCounter, 1699 mSDsluCounter, 2192 mSDsCounter, 0 mSdLazyCounter, 3883 mSolverCounterSat, 2337 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1970 SdHoareTripleChecker+Valid, 4463 SdHoareTripleChecker+Invalid, 6220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2337 IncrementalHoareTripleChecker+Valid, 3883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2021-12-21 16:47:12,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1970 Valid, 4463 Invalid, 6220 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2337 Valid, 3883 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2021-12-21 16:47:12,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1883 states. [2021-12-21 16:47:12,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1883 to 1824. [2021-12-21 16:47:12,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1824 states, 1133 states have (on average 1.3053839364518975) internal successors, (1479), 1155 states have internal predecessors, (1479), 611 states have call successors, (611), 80 states have call predecessors, (611), 79 states have return successors, (610), 599 states have call predecessors, (610), 610 states have call successors, (610) [2021-12-21 16:47:12,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 1824 states and 2700 transitions. [2021-12-21 16:47:12,286 INFO L78 Accepts]: Start accepts. Automaton has 1824 states and 2700 transitions. Word has length 195 [2021-12-21 16:47:12,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:47:12,287 INFO L470 AbstractCegarLoop]: Abstraction has 1824 states and 2700 transitions. [2021-12-21 16:47:12,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-21 16:47:12,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1824 states and 2700 transitions. [2021-12-21 16:47:12,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-12-21 16:47:12,295 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:47:12,295 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-21 16:47:12,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 16:47:12,296 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:47:12,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:47:12,296 INFO L85 PathProgramCache]: Analyzing trace with hash 475855630, now seen corresponding path program 1 times [2021-12-21 16:47:12,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:47:12,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504143082] [2021-12-21 16:47:12,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:47:12,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:47:12,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:47:12,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:12,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:47:12,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:47:12,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:12,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:47:12,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:47:12,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:12,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:47:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:47:12,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:47:12,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:47:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:12,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:47:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-21 16:47:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-21 16:47:12,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-21 16:47:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-21 16:47:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 16:47:12,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:12,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 16:47:12,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-21 16:47:12,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:12,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-21 16:47:12,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-21 16:47:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:12,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:12,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 16:47:12,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:12,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:12,733 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-12-21 16:47:12,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:47:12,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504143082] [2021-12-21 16:47:12,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504143082] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:47:12,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:47:12,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-21 16:47:12,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674749742] [2021-12-21 16:47:12,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:47:12,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-21 16:47:12,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:47:12,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-21 16:47:12,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:47:12,736 INFO L87 Difference]: Start difference. First operand 1824 states and 2700 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-21 16:47:26,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:47:26,472 INFO L93 Difference]: Finished difference Result 5549 states and 8267 transitions. [2021-12-21 16:47:26,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-21 16:47:26,473 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 192 [2021-12-21 16:47:26,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:47:26,492 INFO L225 Difference]: With dead ends: 5549 [2021-12-21 16:47:26,493 INFO L226 Difference]: Without dead ends: 3747 [2021-12-21 16:47:26,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-21 16:47:26,502 INFO L933 BasicCegarLoop]: 2479 mSDtfsCounter, 5926 mSDsluCounter, 5882 mSDsCounter, 0 mSdLazyCounter, 7638 mSolverCounterSat, 7265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6400 SdHoareTripleChecker+Valid, 8361 SdHoareTripleChecker+Invalid, 14903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7265 IncrementalHoareTripleChecker+Valid, 7638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2021-12-21 16:47:26,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6400 Valid, 8361 Invalid, 14903 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7265 Valid, 7638 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2021-12-21 16:47:26,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3747 states. [2021-12-21 16:47:26,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3747 to 3626. [2021-12-21 16:47:26,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3626 states, 2250 states have (on average 1.304888888888889) internal successors, (2936), 2301 states have internal predecessors, (2936), 1214 states have call successors, (1214), 159 states have call predecessors, (1214), 161 states have return successors, (1228), 1187 states have call predecessors, (1228), 1213 states have call successors, (1228) [2021-12-21 16:47:26,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3626 states to 3626 states and 5378 transitions. [2021-12-21 16:47:26,642 INFO L78 Accepts]: Start accepts. Automaton has 3626 states and 5378 transitions. Word has length 192 [2021-12-21 16:47:26,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:47:26,645 INFO L470 AbstractCegarLoop]: Abstraction has 3626 states and 5378 transitions. [2021-12-21 16:47:26,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-21 16:47:26,646 INFO L276 IsEmpty]: Start isEmpty. Operand 3626 states and 5378 transitions. [2021-12-21 16:47:26,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-12-21 16:47:26,656 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:47:26,656 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-21 16:47:26,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 16:47:26,656 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:47:26,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:47:26,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1754365613, now seen corresponding path program 1 times [2021-12-21 16:47:26,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:47:26,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840486811] [2021-12-21 16:47:26,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:47:26,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:47:26,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:26,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:47:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:26,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:26,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:26,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:47:26,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:26,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:47:26,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:26,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:26,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:47:26,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:26,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:47:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:26,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:26,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:26,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:47:26,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:26,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:47:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:26,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:26,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:26,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:47:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:26,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:47:26,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:26,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:26,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:26,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:47:26,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:26,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-21 16:47:26,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:26,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-21 16:47:26,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:26,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-21 16:47:26,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:26,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 16:47:26,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:26,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-21 16:47:26,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:26,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:26,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-21 16:47:26,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:26,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-21 16:47:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:26,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:26,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-21 16:47:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:26,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-21 16:47:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:27,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:27,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:27,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:27,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 16:47:27,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:27,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:27,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:27,026 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-12-21 16:47:27,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:47:27,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840486811] [2021-12-21 16:47:27,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840486811] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:47:27,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:47:27,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-21 16:47:27,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490364967] [2021-12-21 16:47:27,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:47:27,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-21 16:47:27,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:47:27,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-21 16:47:27,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:47:27,029 INFO L87 Difference]: Start difference. First operand 3626 states and 5378 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-21 16:47:33,570 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:47:44,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:47:44,434 INFO L93 Difference]: Finished difference Result 11068 states and 16518 transitions. [2021-12-21 16:47:44,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-21 16:47:44,434 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 195 [2021-12-21 16:47:44,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:47:44,474 INFO L225 Difference]: With dead ends: 11068 [2021-12-21 16:47:44,474 INFO L226 Difference]: Without dead ends: 7464 [2021-12-21 16:47:44,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-21 16:47:44,495 INFO L933 BasicCegarLoop]: 2579 mSDtfsCounter, 5758 mSDsluCounter, 5991 mSDsCounter, 0 mSdLazyCounter, 7776 mSolverCounterSat, 7082 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6230 SdHoareTripleChecker+Valid, 8570 SdHoareTripleChecker+Invalid, 14858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7082 IncrementalHoareTripleChecker+Valid, 7776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2021-12-21 16:47:44,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6230 Valid, 8570 Invalid, 14858 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7082 Valid, 7776 Invalid, 0 Unknown, 0 Unchecked, 16.9s Time] [2021-12-21 16:47:44,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7464 states. [2021-12-21 16:47:44,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7464 to 7233. [2021-12-21 16:47:44,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7233 states, 4490 states have (on average 1.3046770601336304) internal successors, (5858), 4592 states have internal predecessors, (5858), 2419 states have call successors, (2419), 317 states have call predecessors, (2419), 323 states have return successors, (2470), 2367 states have call predecessors, (2470), 2418 states have call successors, (2470) [2021-12-21 16:47:44,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7233 states to 7233 states and 10747 transitions. [2021-12-21 16:47:44,860 INFO L78 Accepts]: Start accepts. Automaton has 7233 states and 10747 transitions. Word has length 195 [2021-12-21 16:47:44,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:47:44,860 INFO L470 AbstractCegarLoop]: Abstraction has 7233 states and 10747 transitions. [2021-12-21 16:47:44,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-21 16:47:44,861 INFO L276 IsEmpty]: Start isEmpty. Operand 7233 states and 10747 transitions. [2021-12-21 16:47:44,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-12-21 16:47:44,870 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:47:44,870 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-21 16:47:44,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 16:47:44,871 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:47:44,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:47:44,871 INFO L85 PathProgramCache]: Analyzing trace with hash 351077322, now seen corresponding path program 1 times [2021-12-21 16:47:44,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:47:44,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466484460] [2021-12-21 16:47:44,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:47:44,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:47:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:47:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:45,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:47:45,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:47:45,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:45,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:47:45,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:47:45,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:45,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:47:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:47:45,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:47:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:47:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:47:45,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-21 16:47:45,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-21 16:47:45,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-21 16:47:45,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-21 16:47:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-21 16:47:45,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-21 16:47:45,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-21 16:47:45,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:45,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-21 16:47:45,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-21 16:47:45,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:45,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:45,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 16:47:45,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:47:45,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:47:45,205 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-12-21 16:47:45,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:47:45,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466484460] [2021-12-21 16:47:45,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466484460] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:47:45,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:47:45,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-21 16:47:45,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353325717] [2021-12-21 16:47:45,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:47:45,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-21 16:47:45,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:47:45,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-21 16:47:45,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:47:45,207 INFO L87 Difference]: Start difference. First operand 7233 states and 10747 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-21 16:47:51,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:47:53,063 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []