./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--tty--n_r3964.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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--tty--n_r3964.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 91e04004830698389104523fd95ec19013bffc6ed609cfb90049e6e93edb2bb3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 01:50:32,523 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 01:50:32,525 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 01:50:32,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 01:50:32,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 01:50:32,553 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 01:50:32,554 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 01:50:32,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 01:50:32,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 01:50:32,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 01:50:32,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 01:50:32,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 01:50:32,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 01:50:32,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 01:50:32,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 01:50:32,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 01:50:32,563 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 01:50:32,564 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 01:50:32,565 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 01:50:32,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 01:50:32,568 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 01:50:32,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 01:50:32,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 01:50:32,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 01:50:32,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 01:50:32,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 01:50:32,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 01:50:32,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 01:50:32,582 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 01:50:32,583 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 01:50:32,583 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 01:50:32,584 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 01:50:32,585 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 01:50:32,586 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 01:50:32,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 01:50:32,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 01:50:32,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 01:50:32,591 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 01:50:32,591 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 01:50:32,591 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 01:50:32,592 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 01:50:32,593 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 01:50:32,595 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 01:50:32,622 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 01:50:32,623 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 01:50:32,623 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 01:50:32,624 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 01:50:32,624 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 01:50:32,624 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 01:50:32,625 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 01:50:32,625 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 01:50:32,625 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 01:50:32,626 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 01:50:32,626 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 01:50:32,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 01:50:32,627 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 01:50:32,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 01:50:32,627 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 01:50:32,627 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 01:50:32,628 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 01:50:32,628 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 01:50:32,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 01:50:32,628 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 01:50:32,628 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 01:50:32,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 01:50:32,629 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 01:50:32,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 01:50:32,630 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 01:50:32,630 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 01:50:32,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 01:50:32,630 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 01:50:32,631 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 01:50:32,631 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 01:50:32,631 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91e04004830698389104523fd95ec19013bffc6ed609cfb90049e6e93edb2bb3 [2022-07-23 01:50:32,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 01:50:32,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 01:50:32,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 01:50:32,886 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 01:50:32,887 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 01:50:32,888 INFO L432 ainManager$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--tty--n_r3964.ko-entry_point.cil.out.i [2022-07-23 01:50:32,938 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6959a4788/8a3b5b57b4194abfb562d97a893e2244/FLAG6cfe70e2e [2022-07-23 01:50:33,534 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 01:50:33,534 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--tty--n_r3964.ko-entry_point.cil.out.i [2022-07-23 01:50:33,569 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6959a4788/8a3b5b57b4194abfb562d97a893e2244/FLAG6cfe70e2e [2022-07-23 01:50:33,962 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6959a4788/8a3b5b57b4194abfb562d97a893e2244 [2022-07-23 01:50:33,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 01:50:33,966 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 01:50:33,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 01:50:33,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 01:50:33,971 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 01:50:33,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:50:33" (1/1) ... [2022-07-23 01:50:33,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b502e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:50:33, skipping insertion in model container [2022-07-23 01:50:33,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:50:33" (1/1) ... [2022-07-23 01:50:33,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 01:50:34,052 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 01:50:34,881 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--tty--n_r3964.ko-entry_point.cil.out.i[143316,143329] [2022-07-23 01:50:34,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:50:34,936 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 01:50:35,207 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--tty--n_r3964.ko-entry_point.cil.out.i[143316,143329] [2022-07-23 01:50:35,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:50:35,285 INFO L208 MainTranslator]: Completed translation [2022-07-23 01:50:35,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:50:35 WrapperNode [2022-07-23 01:50:35,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 01:50:35,289 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 01:50:35,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 01:50:35,289 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 01:50:35,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:50:35" (1/1) ... [2022-07-23 01:50:35,362 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:50:35" (1/1) ... [2022-07-23 01:50:35,446 INFO L137 Inliner]: procedures = 142, calls = 664, calls flagged for inlining = 62, calls inlined = 59, statements flattened = 1993 [2022-07-23 01:50:35,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 01:50:35,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 01:50:35,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 01:50:35,447 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 01:50:35,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:50:35" (1/1) ... [2022-07-23 01:50:35,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:50:35" (1/1) ... [2022-07-23 01:50:35,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:50:35" (1/1) ... [2022-07-23 01:50:35,468 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:50:35" (1/1) ... [2022-07-23 01:50:35,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:50:35" (1/1) ... [2022-07-23 01:50:35,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:50:35" (1/1) ... [2022-07-23 01:50:35,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:50:35" (1/1) ... [2022-07-23 01:50:35,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 01:50:35,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 01:50:35,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 01:50:35,581 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 01:50:35,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:50:35" (1/1) ... [2022-07-23 01:50:35,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 01:50:35,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 01:50:35,617 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) [2022-07-23 01:50:35,641 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 [2022-07-23 01:50:35,661 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-23 01:50:35,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-23 01:50:35,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-23 01:50:35,662 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2022-07-23 01:50:35,662 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2022-07-23 01:50:35,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 01:50:35,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 01:50:35,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 01:50:35,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 01:50:35,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 01:50:35,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-23 01:50:35,663 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-23 01:50:35,663 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-07-23 01:50:35,663 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-07-23 01:50:35,663 INFO L130 BoogieDeclarations]: Found specification of procedure retry_transmit [2022-07-23 01:50:35,664 INFO L138 BoogieDeclarations]: Found implementation of procedure retry_transmit [2022-07-23 01:50:35,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-23 01:50:35,664 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-23 01:50:35,664 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-23 01:50:35,664 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-23 01:50:35,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-23 01:50:35,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-23 01:50:35,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 01:50:35,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 01:50:35,665 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_close [2022-07-23 01:50:35,665 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_close [2022-07-23 01:50:35,665 INFO L130 BoogieDeclarations]: Found specification of procedure remove_msg [2022-07-23 01:50:35,665 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_msg [2022-07-23 01:50:35,666 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2022-07-23 01:50:35,666 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2022-07-23 01:50:35,666 INFO L130 BoogieDeclarations]: Found specification of procedure task_pid [2022-07-23 01:50:35,666 INFO L138 BoogieDeclarations]: Found implementation of procedure task_pid [2022-07-23 01:50:35,666 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-23 01:50:35,666 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-23 01:50:35,667 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unlock [2022-07-23 01:50:35,667 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unlock [2022-07-23 01:50:35,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 01:50:35,667 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-23 01:50:35,667 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-23 01:50:35,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-23 01:50:35,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-23 01:50:35,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-23 01:50:35,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-23 01:50:35,668 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-23 01:50:35,669 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-23 01:50:35,669 INFO L130 BoogieDeclarations]: Found specification of procedure add_msg [2022-07-23 01:50:35,669 INFO L138 BoogieDeclarations]: Found implementation of procedure add_msg [2022-07-23 01:50:35,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 01:50:35,669 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2022-07-23 01:50:35,669 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2022-07-23 01:50:35,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-23 01:50:35,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-23 01:50:35,670 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-23 01:50:35,670 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-23 01:50:35,671 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_poll [2022-07-23 01:50:35,671 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_poll [2022-07-23 01:50:35,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 01:50:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2022-07-23 01:50:35,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2022-07-23 01:50:35,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 01:50:35,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 01:50:35,674 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-23 01:50:35,674 INFO L130 BoogieDeclarations]: Found specification of procedure findClient [2022-07-23 01:50:35,674 INFO L138 BoogieDeclarations]: Found implementation of procedure findClient [2022-07-23 01:50:35,674 INFO L130 BoogieDeclarations]: Found specification of procedure put_char [2022-07-23 01:50:35,674 INFO L138 BoogieDeclarations]: Found implementation of procedure put_char [2022-07-23 01:50:35,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 01:50:35,675 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-23 01:50:35,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-23 01:50:35,675 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2022-07-23 01:50:35,675 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2022-07-23 01:50:35,676 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-23 01:50:35,676 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-23 01:50:35,676 INFO L130 BoogieDeclarations]: Found specification of procedure remove_client_block [2022-07-23 01:50:35,676 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_client_block [2022-07-23 01:50:35,677 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-23 01:50:35,677 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-23 01:50:35,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 01:50:35,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 01:50:35,677 INFO L130 BoogieDeclarations]: Found specification of procedure on_receive_block [2022-07-23 01:50:35,677 INFO L138 BoogieDeclarations]: Found implementation of procedure on_receive_block [2022-07-23 01:50:35,677 INFO L130 BoogieDeclarations]: Found specification of procedure flush [2022-07-23 01:50:35,678 INFO L138 BoogieDeclarations]: Found implementation of procedure flush [2022-07-23 01:50:35,678 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_set_termios [2022-07-23 01:50:35,678 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_set_termios [2022-07-23 01:50:35,678 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-23 01:50:35,678 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-23 01:50:35,678 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_ioctl [2022-07-23 01:50:35,679 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_ioctl [2022-07-23 01:50:35,679 INFO L130 BoogieDeclarations]: Found specification of procedure remove_from_tx_queue [2022-07-23 01:50:35,679 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_from_tx_queue [2022-07-23 01:50:35,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 01:50:35,680 INFO L130 BoogieDeclarations]: Found specification of procedure tty_lock [2022-07-23 01:50:35,680 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_lock [2022-07-23 01:50:35,681 INFO L130 BoogieDeclarations]: Found specification of procedure trigger_transmit [2022-07-23 01:50:35,681 INFO L138 BoogieDeclarations]: Found implementation of procedure trigger_transmit [2022-07-23 01:50:35,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-23 01:50:35,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 01:50:35,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 01:50:36,144 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 01:50:36,148 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 01:50:36,384 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 01:50:39,771 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 01:50:39,783 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 01:50:39,783 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-23 01:50:39,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:50:39 BoogieIcfgContainer [2022-07-23 01:50:39,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 01:50:39,787 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 01:50:39,787 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 01:50:39,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 01:50:39,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 01:50:33" (1/3) ... [2022-07-23 01:50:39,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20401865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:50:39, skipping insertion in model container [2022-07-23 01:50:39,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:50:35" (2/3) ... [2022-07-23 01:50:39,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20401865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:50:39, skipping insertion in model container [2022-07-23 01:50:39,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:50:39" (3/3) ... [2022-07-23 01:50:39,796 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i [2022-07-23 01:50:39,808 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 01:50:39,809 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-23 01:50:39,871 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 01:50:39,877 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3242cfd2, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7a75d5bb [2022-07-23 01:50:39,877 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-23 01:50:39,884 INFO L276 IsEmpty]: Start isEmpty. Operand has 754 states, 527 states have (on average 1.396584440227704) internal successors, (736), 563 states have internal predecessors, (736), 185 states have call successors, (185), 41 states have call predecessors, (185), 40 states have return successors, (181), 171 states have call predecessors, (181), 181 states have call successors, (181) [2022-07-23 01:50:39,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-07-23 01:50:39,905 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:50:39,907 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:50:39,907 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:50:39,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:50:39,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1970092861, now seen corresponding path program 1 times [2022-07-23 01:50:39,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:50:39,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485237205] [2022-07-23 01:50:39,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:50:39,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:50:40,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:40,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:50:40,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:40,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 01:50:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:40,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:50:40,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:40,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:50:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:40,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-23 01:50:40,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:40,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:50:40,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:40,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:50:40,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:40,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-23 01:50:40,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:40,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:50:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:40,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:50:40,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:40,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 01:50:40,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:40,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 01:50:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:40,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-23 01:50:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:40,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:50:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:40,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:50:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:40,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-23 01:50:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:40,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:50:40,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:40,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:50:40,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:40,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-23 01:50:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:40,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:50:40,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:40,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:50:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:40,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-23 01:50:40,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:40,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-23 01:50:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:40,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-23 01:50:40,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:40,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-23 01:50:40,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:40,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-23 01:50:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:40,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-23 01:50:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:40,698 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2022-07-23 01:50:40,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:50:40,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485237205] [2022-07-23 01:50:40,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485237205] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:50:40,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:50:40,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 01:50:40,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766872282] [2022-07-23 01:50:40,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:50:40,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 01:50:40,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:50:40,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 01:50:40,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-23 01:50:40,747 INFO L87 Difference]: Start difference. First operand has 754 states, 527 states have (on average 1.396584440227704) internal successors, (736), 563 states have internal predecessors, (736), 185 states have call successors, (185), 41 states have call predecessors, (185), 40 states have return successors, (181), 171 states have call predecessors, (181), 181 states have call successors, (181) Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-23 01:50:45,642 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 [] [2022-07-23 01:50:46,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:50:46,225 INFO L93 Difference]: Finished difference Result 2121 states and 3238 transitions. [2022-07-23 01:50:46,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 01:50:46,229 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 173 [2022-07-23 01:50:46,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:50:46,270 INFO L225 Difference]: With dead ends: 2121 [2022-07-23 01:50:46,271 INFO L226 Difference]: Without dead ends: 1345 [2022-07-23 01:50:46,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-07-23 01:50:46,303 INFO L413 NwaCegarLoop]: 1096 mSDtfsCounter, 1754 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 1814 mSolverCounterSat, 1395 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1840 SdHoareTripleChecker+Valid, 2563 SdHoareTripleChecker+Invalid, 3210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1395 IncrementalHoareTripleChecker+Valid, 1814 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-07-23 01:50:46,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1840 Valid, 2563 Invalid, 3210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1395 Valid, 1814 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-07-23 01:50:46,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1345 states. [2022-07-23 01:50:46,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1345 to 1024. [2022-07-23 01:50:46,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1024 states, 714 states have (on average 1.380952380952381) internal successors, (986), 761 states have internal predecessors, (986), 245 states have call successors, (245), 65 states have call predecessors, (245), 64 states have return successors, (244), 229 states have call predecessors, (244), 244 states have call successors, (244) [2022-07-23 01:50:46,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1475 transitions. [2022-07-23 01:50:46,507 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1475 transitions. Word has length 173 [2022-07-23 01:50:46,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:50:46,508 INFO L495 AbstractCegarLoop]: Abstraction has 1024 states and 1475 transitions. [2022-07-23 01:50:46,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-23 01:50:46,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1475 transitions. [2022-07-23 01:50:46,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-23 01:50:46,512 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:50:46,512 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:50:46,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 01:50:46,513 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:50:46,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:50:46,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1606994607, now seen corresponding path program 1 times [2022-07-23 01:50:46,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:50:46,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457642228] [2022-07-23 01:50:46,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:50:46,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:50:46,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:46,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:50:46,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:46,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 01:50:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:46,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:50:46,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:46,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:50:46,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:46,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-23 01:50:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:46,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:50:46,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:46,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:50:46,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:46,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-23 01:50:46,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:46,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:50:46,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:46,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:50:46,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:46,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 01:50:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:46,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 01:50:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:46,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-23 01:50:46,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:46,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:50:46,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:46,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:50:46,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:46,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-23 01:50:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:46,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:50:46,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:46,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:50:46,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:46,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-23 01:50:46,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:46,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:50:46,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:46,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:50:46,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:46,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-23 01:50:46,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:46,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-23 01:50:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:46,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-23 01:50:46,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:46,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-23 01:50:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:46,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-23 01:50:46,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:46,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-23 01:50:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:50:46,861 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2022-07-23 01:50:46,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:50:46,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457642228] [2022-07-23 01:50:46,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457642228] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:50:46,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:50:46,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 01:50:46,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369862896] [2022-07-23 01:50:46,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:50:46,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 01:50:46,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:50:46,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 01:50:46,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-23 01:50:46,865 INFO L87 Difference]: Start difference. First operand 1024 states and 1475 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-23 01:50:56,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:50:58,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:51:01,643 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:51:03,677 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:51:05,780 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:51:07,810 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:51:08,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:51:08,707 INFO L93 Difference]: Finished difference Result 6150 states and 9761 transitions. [2022-07-23 01:51:08,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-23 01:51:08,708 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 184 [2022-07-23 01:51:08,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:51:08,742 INFO L225 Difference]: With dead ends: 6150 [2022-07-23 01:51:08,743 INFO L226 Difference]: Without dead ends: 5175 [2022-07-23 01:51:08,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2022-07-23 01:51:08,753 INFO L413 NwaCegarLoop]: 1565 mSDtfsCounter, 4872 mSDsluCounter, 4077 mSDsCounter, 0 mSdLazyCounter, 6958 mSolverCounterSat, 2806 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5213 SdHoareTripleChecker+Valid, 5642 SdHoareTripleChecker+Invalid, 9770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2806 IncrementalHoareTripleChecker+Valid, 6958 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.2s IncrementalHoareTripleChecker+Time [2022-07-23 01:51:08,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5213 Valid, 5642 Invalid, 9770 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2806 Valid, 6958 Invalid, 6 Unknown, 0 Unchecked, 21.2s Time] [2022-07-23 01:51:08,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5175 states. [2022-07-23 01:51:08,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5175 to 3977. [2022-07-23 01:51:08,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3977 states, 2786 states have (on average 1.379396984924623) internal successors, (3843), 2967 states have internal predecessors, (3843), 929 states have call successors, (929), 246 states have call predecessors, (929), 261 states have return successors, (1209), 887 states have call predecessors, (1209), 928 states have call successors, (1209) [2022-07-23 01:51:09,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3977 states to 3977 states and 5981 transitions. [2022-07-23 01:51:09,014 INFO L78 Accepts]: Start accepts. Automaton has 3977 states and 5981 transitions. Word has length 184 [2022-07-23 01:51:09,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:51:09,016 INFO L495 AbstractCegarLoop]: Abstraction has 3977 states and 5981 transitions. [2022-07-23 01:51:09,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-23 01:51:09,017 INFO L276 IsEmpty]: Start isEmpty. Operand 3977 states and 5981 transitions. [2022-07-23 01:51:09,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-07-23 01:51:09,022 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:51:09,023 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:51:09,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 01:51:09,024 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:51:09,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:51:09,024 INFO L85 PathProgramCache]: Analyzing trace with hash -2003332557, now seen corresponding path program 1 times [2022-07-23 01:51:09,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:51:09,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386783615] [2022-07-23 01:51:09,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:51:09,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:51:09,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:09,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:51:09,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:09,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 01:51:09,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:09,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:51:09,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:09,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:51:09,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:09,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-23 01:51:09,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:09,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:51:09,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:09,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:51:09,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:09,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-23 01:51:09,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:09,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:51:09,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:09,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:51:09,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:09,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 01:51:09,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:09,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 01:51:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:09,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-23 01:51:09,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:09,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:51:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:09,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:51:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:09,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-23 01:51:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:09,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:51:09,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:09,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:51:09,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:09,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-23 01:51:09,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:09,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:51:09,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:09,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:51:09,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:09,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-23 01:51:09,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:09,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-23 01:51:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:09,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-23 01:51:09,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:09,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-23 01:51:09,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:09,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-23 01:51:09,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:09,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-23 01:51:09,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:09,371 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2022-07-23 01:51:09,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:51:09,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386783615] [2022-07-23 01:51:09,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386783615] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:51:09,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:51:09,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 01:51:09,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508538962] [2022-07-23 01:51:09,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:51:09,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 01:51:09,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:51:09,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 01:51:09,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-23 01:51:09,376 INFO L87 Difference]: Start difference. First operand 3977 states and 5981 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-23 01:51:18,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:51:20,242 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:51:22,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:51:25,586 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:51:27,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:51:29,923 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:51:32,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:51:34,471 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:51:34,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:51:34,773 INFO L93 Difference]: Finished difference Result 24341 states and 40850 transitions. [2022-07-23 01:51:34,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-23 01:51:34,773 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 185 [2022-07-23 01:51:34,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:51:34,940 INFO L225 Difference]: With dead ends: 24341 [2022-07-23 01:51:34,940 INFO L226 Difference]: Without dead ends: 20413 [2022-07-23 01:51:34,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2022-07-23 01:51:34,982 INFO L413 NwaCegarLoop]: 1510 mSDtfsCounter, 4330 mSDsluCounter, 4364 mSDsCounter, 0 mSdLazyCounter, 7511 mSolverCounterSat, 2769 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4673 SdHoareTripleChecker+Valid, 5874 SdHoareTripleChecker+Invalid, 10288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2769 IncrementalHoareTripleChecker+Valid, 7511 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.5s IncrementalHoareTripleChecker+Time [2022-07-23 01:51:34,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4673 Valid, 5874 Invalid, 10288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2769 Valid, 7511 Invalid, 8 Unknown, 0 Unchecked, 24.5s Time] [2022-07-23 01:51:35,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20413 states. [2022-07-23 01:51:36,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20413 to 15962. [2022-07-23 01:51:36,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15962 states, 11185 states have (on average 1.3722843093428698) internal successors, (15349), 11887 states have internal predecessors, (15349), 3695 states have call successors, (3695), 972 states have call predecessors, (3695), 1081 states have return successors, (6352), 3592 states have call predecessors, (6352), 3694 states have call successors, (6352) [2022-07-23 01:51:36,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15962 states to 15962 states and 25396 transitions. [2022-07-23 01:51:36,216 INFO L78 Accepts]: Start accepts. Automaton has 15962 states and 25396 transitions. Word has length 185 [2022-07-23 01:51:36,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:51:36,218 INFO L495 AbstractCegarLoop]: Abstraction has 15962 states and 25396 transitions. [2022-07-23 01:51:36,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-23 01:51:36,219 INFO L276 IsEmpty]: Start isEmpty. Operand 15962 states and 25396 transitions. [2022-07-23 01:51:36,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-07-23 01:51:36,222 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:51:36,222 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:51:36,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-23 01:51:36,223 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:51:36,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:51:36,224 INFO L85 PathProgramCache]: Analyzing trace with hash -109046439, now seen corresponding path program 1 times [2022-07-23 01:51:36,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:51:36,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193001269] [2022-07-23 01:51:36,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:51:36,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:51:36,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:36,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:51:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:36,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 01:51:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:36,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:51:36,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:36,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:51:36,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:36,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-23 01:51:36,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:36,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:51:36,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:36,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:51:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:36,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-23 01:51:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:36,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:51:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:36,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:51:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:36,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 01:51:36,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:36,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 01:51:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:36,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-23 01:51:36,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:36,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:51:36,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:36,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:51:36,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:36,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-23 01:51:36,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:36,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:51:36,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:36,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:51:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:36,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-23 01:51:36,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:36,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:51:36,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:36,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:51:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:36,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-23 01:51:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:36,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-23 01:51:36,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:36,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-23 01:51:36,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:36,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-23 01:51:36,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:36,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-23 01:51:36,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:36,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-23 01:51:36,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:36,628 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2022-07-23 01:51:36,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:51:36,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193001269] [2022-07-23 01:51:36,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193001269] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:51:36,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:51:36,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 01:51:36,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448606773] [2022-07-23 01:51:36,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:51:36,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 01:51:36,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:51:36,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 01:51:36,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-23 01:51:36,631 INFO L87 Difference]: Start difference. First operand 15962 states and 25396 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-23 01:51:46,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:51:50,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:51:51,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:51:51,441 INFO L93 Difference]: Finished difference Result 97202 states and 174009 transitions. [2022-07-23 01:51:51,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-23 01:51:51,442 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 186 [2022-07-23 01:51:51,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:51:52,408 INFO L225 Difference]: With dead ends: 97202 [2022-07-23 01:51:52,409 INFO L226 Difference]: Without dead ends: 81289 [2022-07-23 01:51:52,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2022-07-23 01:51:52,793 INFO L413 NwaCegarLoop]: 1464 mSDtfsCounter, 5350 mSDsluCounter, 4221 mSDsCounter, 0 mSdLazyCounter, 5901 mSolverCounterSat, 3589 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5693 SdHoareTripleChecker+Valid, 5685 SdHoareTripleChecker+Invalid, 9492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3589 IncrementalHoareTripleChecker+Valid, 5901 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-07-23 01:51:52,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5693 Valid, 5685 Invalid, 9492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3589 Valid, 5901 Invalid, 2 Unknown, 0 Unchecked, 12.0s Time] [2022-07-23 01:51:52,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81289 states. [2022-07-23 01:51:56,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81289 to 64482. [2022-07-23 01:51:57,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64482 states, 45180 states have (on average 1.3651394422310756) internal successors, (61677), 47908 states have internal predecessors, (61677), 14832 states have call successors, (14832), 3876 states have call predecessors, (14832), 4469 states have return successors, (33531), 14653 states have call predecessors, (33531), 14831 states have call successors, (33531) [2022-07-23 01:51:57,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64482 states to 64482 states and 110040 transitions. [2022-07-23 01:51:57,778 INFO L78 Accepts]: Start accepts. Automaton has 64482 states and 110040 transitions. Word has length 186 [2022-07-23 01:51:57,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:51:57,787 INFO L495 AbstractCegarLoop]: Abstraction has 64482 states and 110040 transitions. [2022-07-23 01:51:57,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-23 01:51:57,787 INFO L276 IsEmpty]: Start isEmpty. Operand 64482 states and 110040 transitions. [2022-07-23 01:51:57,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-23 01:51:57,790 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:51:57,790 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:51:57,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-23 01:51:57,791 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:51:57,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:51:57,791 INFO L85 PathProgramCache]: Analyzing trace with hash -219858245, now seen corresponding path program 1 times [2022-07-23 01:51:57,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:51:57,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048173577] [2022-07-23 01:51:57,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:51:57,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:51:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:57,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:51:57,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:57,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 01:51:57,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:57,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:51:57,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:57,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:51:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:57,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-23 01:51:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:57,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:51:57,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:57,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:51:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:57,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-23 01:51:57,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:57,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:51:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:57,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:51:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:57,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 01:51:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:57,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 01:51:57,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:57,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-23 01:51:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:57,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:51:57,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:57,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:51:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:57,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-23 01:51:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:57,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:51:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:57,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:51:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:57,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-23 01:51:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:57,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:51:57,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:58,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:51:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:58,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-23 01:51:58,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:58,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-23 01:51:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:58,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-23 01:51:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:58,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-23 01:51:58,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:58,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-23 01:51:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:58,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-23 01:51:58,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:51:58,040 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2022-07-23 01:51:58,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:51:58,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048173577] [2022-07-23 01:51:58,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048173577] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:51:58,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:51:58,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 01:51:58,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212794803] [2022-07-23 01:51:58,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:51:58,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 01:51:58,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:51:58,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 01:51:58,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-23 01:51:58,043 INFO L87 Difference]: Start difference. First operand 64482 states and 110040 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-23 01:52:12,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:52:14,586 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:52:22,380 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 [] [2022-07-23 01:52:24,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:52:24,052 INFO L93 Difference]: Finished difference Result 381680 states and 726628 transitions. [2022-07-23 01:52:24,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-23 01:52:24,053 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 187 [2022-07-23 01:52:24,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:52:27,740 INFO L225 Difference]: With dead ends: 381680 [2022-07-23 01:52:27,740 INFO L226 Difference]: Without dead ends: 317247 [2022-07-23 01:52:28,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2022-07-23 01:52:28,295 INFO L413 NwaCegarLoop]: 1460 mSDtfsCounter, 5190 mSDsluCounter, 3363 mSDsCounter, 0 mSdLazyCounter, 5970 mSolverCounterSat, 3399 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5534 SdHoareTripleChecker+Valid, 4823 SdHoareTripleChecker+Invalid, 9372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3399 IncrementalHoareTripleChecker+Valid, 5970 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2022-07-23 01:52:28,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5534 Valid, 4823 Invalid, 9372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3399 Valid, 5970 Invalid, 3 Unknown, 0 Unchecked, 14.3s Time] [2022-07-23 01:52:28,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317247 states. [2022-07-23 01:52:42,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317247 to 254730. [2022-07-23 01:52:43,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254730 states, 179256 states have (on average 1.35667425358147) internal successors, (243192), 189161 states have internal predecessors, (243192), 57400 states have call successors, (57400), 15166 states have call predecessors, (57400), 18073 states have return successors, (166006), 58029 states have call predecessors, (166006), 57399 states have call successors, (166006) [2022-07-23 01:52:45,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254730 states to 254730 states and 466598 transitions. [2022-07-23 01:52:46,014 INFO L78 Accepts]: Start accepts. Automaton has 254730 states and 466598 transitions. Word has length 187 [2022-07-23 01:52:46,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:52:46,015 INFO L495 AbstractCegarLoop]: Abstraction has 254730 states and 466598 transitions. [2022-07-23 01:52:46,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-23 01:52:46,015 INFO L276 IsEmpty]: Start isEmpty. Operand 254730 states and 466598 transitions. [2022-07-23 01:52:46,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-07-23 01:52:46,017 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:52:46,018 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:52:46,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-23 01:52:46,018 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:52:46,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:52:46,019 INFO L85 PathProgramCache]: Analyzing trace with hash 355065517, now seen corresponding path program 1 times [2022-07-23 01:52:46,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:52:46,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569404357] [2022-07-23 01:52:46,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:52:46,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:52:46,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:52:46,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 01:52:46,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:52:46,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:52:46,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-23 01:52:46,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:52:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:52:46,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-23 01:52:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:52:46,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:52:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 01:52:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 01:52:46,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-23 01:52:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:52:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:52:46,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-23 01:52:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:52:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:52:46,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-23 01:52:46,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:52:46,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:52:46,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-23 01:52:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-23 01:52:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-23 01:52:46,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-23 01:52:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-23 01:52:46,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-23 01:52:46,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-23 01:52:46,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:52:46,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:52:46,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:52:46,324 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2022-07-23 01:52:46,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:52:46,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569404357] [2022-07-23 01:52:46,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569404357] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:52:46,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:52:46,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-23 01:52:46,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596243076] [2022-07-23 01:52:46,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:52:46,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-23 01:52:46,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:52:46,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-23 01:52:46,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-07-23 01:52:46,327 INFO L87 Difference]: Start difference. First operand 254730 states and 466598 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)