./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-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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-08_1a-drivers--atm--atmtcp.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 e6823a3e354b35bf05bec5e81d72dc7306859bf56793457624e681693cebdf0b --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 05:39:15,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 05:39:15,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 05:39:15,711 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 05:39:15,711 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 05:39:15,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 05:39:15,713 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 05:39:15,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 05:39:15,716 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 05:39:15,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 05:39:15,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 05:39:15,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 05:39:15,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 05:39:15,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 05:39:15,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 05:39:15,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 05:39:15,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 05:39:15,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 05:39:15,723 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 05:39:15,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 05:39:15,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 05:39:15,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 05:39:15,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 05:39:15,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 05:39:15,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 05:39:15,743 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 05:39:15,743 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 05:39:15,744 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 05:39:15,744 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 05:39:15,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 05:39:15,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 05:39:15,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 05:39:15,746 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 05:39:15,747 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 05:39:15,747 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 05:39:15,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 05:39:15,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 05:39:15,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 05:39:15,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 05:39:15,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 05:39:15,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 05:39:15,764 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 05:39:15,778 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 05:39:15,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 05:39:15,779 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 05:39:15,780 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 05:39:15,781 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 05:39:15,781 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 05:39:15,782 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 05:39:15,782 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 05:39:15,782 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 05:39:15,782 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 05:39:15,782 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 05:39:15,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 05:39:15,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 05:39:15,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 05:39:15,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 05:39:15,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 05:39:15,783 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 05:39:15,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 05:39:15,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 05:39:15,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 05:39:15,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 05:39:15,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 05:39:15,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 05:39:15,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 05:39:15,784 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 05:39:15,784 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 05:39:15,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 05:39:15,785 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 05:39:15,785 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 05:39:15,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 05:39:15,785 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 05:39:15,785 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6823a3e354b35bf05bec5e81d72dc7306859bf56793457624e681693cebdf0b [2021-12-18 05:39:15,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 05:39:15,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 05:39:15,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 05:39:15,980 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 05:39:15,981 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 05:39:15,982 INFO L432 ainManager$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-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2021-12-18 05:39:16,025 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/535d20203/00abd578ab03412c83ef282d0cf04794/FLAGbfa458dff [2021-12-18 05:39:16,575 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 05:39:16,575 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2021-12-18 05:39:16,616 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/535d20203/00abd578ab03412c83ef282d0cf04794/FLAGbfa458dff [2021-12-18 05:39:16,748 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/535d20203/00abd578ab03412c83ef282d0cf04794 [2021-12-18 05:39:16,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 05:39:16,755 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 05:39:16,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 05:39:16,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 05:39:16,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 05:39:16,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 05:39:16" (1/1) ... [2021-12-18 05:39:16,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48dc448e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:39:16, skipping insertion in model container [2021-12-18 05:39:16,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 05:39:16" (1/1) ... [2021-12-18 05:39:16,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 05:39:16,865 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 05:39:17,653 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-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i[225078,225091] [2021-12-18 05:39:17,669 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-18 05:39:17,672 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 05:39:17,695 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 05:39:17,920 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-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i[225078,225091] [2021-12-18 05:39:17,931 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-18 05:39:17,936 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 05:39:17,986 INFO L208 MainTranslator]: Completed translation [2021-12-18 05:39:17,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:39:17 WrapperNode [2021-12-18 05:39:17,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 05:39:17,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 05:39:17,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 05:39:17,988 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 05:39:17,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:39:17" (1/1) ... [2021-12-18 05:39:18,039 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:39:17" (1/1) ... [2021-12-18 05:39:18,110 INFO L137 Inliner]: procedures = 141, calls = 1103, calls flagged for inlining = 57, calls inlined = 55, statements flattened = 2436 [2021-12-18 05:39:18,113 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 05:39:18,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 05:39:18,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 05:39:18,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 05:39:18,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:39:17" (1/1) ... [2021-12-18 05:39:18,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:39:17" (1/1) ... [2021-12-18 05:39:18,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:39:17" (1/1) ... [2021-12-18 05:39:18,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:39:17" (1/1) ... [2021-12-18 05:39:18,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:39:17" (1/1) ... [2021-12-18 05:39:18,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:39:17" (1/1) ... [2021-12-18 05:39:18,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:39:17" (1/1) ... [2021-12-18 05:39:18,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 05:39:18,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 05:39:18,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 05:39:18,276 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 05:39:18,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:39:17" (1/1) ... [2021-12-18 05:39:18,282 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 05:39:18,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:39:18,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-18 05:39:18,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-18 05:39:18,339 INFO L130 BoogieDeclarations]: Found specification of procedure atm_sk [2021-12-18 05:39:18,340 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_sk [2021-12-18 05:39:18,340 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2021-12-18 05:39:18,340 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2021-12-18 05:39:18,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 05:39:18,340 INFO L130 BoogieDeclarations]: Found specification of procedure change_bit [2021-12-18 05:39:18,340 INFO L138 BoogieDeclarations]: Found implementation of procedure change_bit [2021-12-18 05:39:18,340 INFO L130 BoogieDeclarations]: Found specification of procedure atm_alloc_charge [2021-12-18 05:39:18,340 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_alloc_charge [2021-12-18 05:39:18,341 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-18 05:39:18,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 05:39:18,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 05:39:18,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 05:39:18,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 05:39:18,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 05:39:18,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 05:39:18,342 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 05:39:18,342 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-12-18 05:39:18,342 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-12-18 05:39:18,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 05:39:18,342 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 05:39:18,342 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-18 05:39:18,342 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-18 05:39:18,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 05:39:18,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 05:39:18,343 INFO L130 BoogieDeclarations]: Found specification of procedure sk_sleep [2021-12-18 05:39:18,343 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_sleep [2021-12-18 05:39:18,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-12-18 05:39:18,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-12-18 05:39:18,343 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_ioctl [2021-12-18 05:39:18,344 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_ioctl [2021-12-18 05:39:18,344 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 05:39:18,344 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 05:39:18,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 05:39:18,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 05:39:18,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 05:39:18,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 05:39:18,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 05:39:18,345 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-18 05:39:18,345 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-18 05:39:18,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 05:39:18,345 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 05:39:18,345 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_dev_close [2021-12-18 05:39:18,345 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_dev_close [2021-12-18 05:39:18,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-18 05:39:18,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-18 05:39:18,345 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 05:39:18,346 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 05:39:18,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 05:39:18,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-18 05:39:18,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-18 05:39:18,346 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2021-12-18 05:39:18,346 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2021-12-18 05:39:18,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 05:39:18,347 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-18 05:39:18,348 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-18 05:39:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_send [2021-12-18 05:39:18,348 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_send [2021-12-18 05:39:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-18 05:39:18,349 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-18 05:39:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 05:39:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 05:39:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 05:39:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 05:39:18,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-18 05:39:18,350 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_create [2021-12-18 05:39:18,350 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_create [2021-12-18 05:39:18,350 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_close [2021-12-18 05:39:18,350 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_close [2021-12-18 05:39:18,350 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_deregister [2021-12-18 05:39:18,350 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_deregister [2021-12-18 05:39:18,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 05:39:18,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 05:39:18,351 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_close [2021-12-18 05:39:18,351 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_close [2021-12-18 05:39:18,351 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-18 05:39:18,351 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-18 05:39:18,352 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_put [2021-12-18 05:39:18,352 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_put [2021-12-18 05:39:18,352 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-18 05:39:18,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-18 05:39:18,352 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_lookup [2021-12-18 05:39:18,352 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_lookup [2021-12-18 05:39:18,352 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-18 05:39:18,352 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-18 05:39:18,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 05:39:18,353 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_send [2021-12-18 05:39:18,353 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_send [2021-12-18 05:39:18,353 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-18 05:39:18,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-18 05:39:18,353 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_send_control [2021-12-18 05:39:18,354 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_send_control [2021-12-18 05:39:18,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 05:39:18,354 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock [2021-12-18 05:39:18,354 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock [2021-12-18 05:39:18,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 05:39:18,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 05:39:18,355 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock [2021-12-18 05:39:18,355 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock [2021-12-18 05:39:18,793 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 05:39:18,796 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 05:39:22,083 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 05:39:30,203 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 05:39:30,218 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 05:39:30,219 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-18 05:39:30,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:39:30 BoogieIcfgContainer [2021-12-18 05:39:30,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 05:39:30,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 05:39:30,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 05:39:30,226 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 05:39:30,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 05:39:16" (1/3) ... [2021-12-18 05:39:30,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@525dceeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 05:39:30, skipping insertion in model container [2021-12-18 05:39:30,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:39:17" (2/3) ... [2021-12-18 05:39:30,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@525dceeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 05:39:30, skipping insertion in model container [2021-12-18 05:39:30,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:39:30" (3/3) ... [2021-12-18 05:39:30,229 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2021-12-18 05:39:30,232 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 05:39:30,234 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 05:39:30,277 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 05:39:30,284 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-18 05:39:30,284 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 05:39:30,313 INFO L276 IsEmpty]: Start isEmpty. Operand has 628 states, 450 states have (on average 1.3444444444444446) internal successors, (605), 467 states have internal predecessors, (605), 137 states have call successors, (137), 40 states have call predecessors, (137), 39 states have return successors, (132), 129 states have call predecessors, (132), 132 states have call successors, (132) [2021-12-18 05:39:30,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-18 05:39:30,324 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:39:30,324 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:39:30,326 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:39:30,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:39:30,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1856106833, now seen corresponding path program 1 times [2021-12-18 05:39:30,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:39:30,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658326128] [2021-12-18 05:39:30,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:39:30,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:39:30,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:30,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:39:30,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:30,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:30,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:30,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:30,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:39:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:30,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:30,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:30,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:30,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:30,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:39:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:30,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:30,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:30,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:30,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:30,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:39:30,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:30,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:30,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:30,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:39:30,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:30,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:30,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:30,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:30,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:39:30,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:30,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:30,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:30,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:30,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:31,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:39:31,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:31,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:31,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:31,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 05:39:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:31,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:31,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:31,036 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2021-12-18 05:39:31,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:39:31,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658326128] [2021-12-18 05:39:31,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658326128] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:39:31,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:39:31,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 05:39:31,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234446526] [2021-12-18 05:39:31,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:39:31,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 05:39:31,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:39:31,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 05:39:31,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 05:39:31,068 INFO L87 Difference]: Start difference. First operand has 628 states, 450 states have (on average 1.3444444444444446) internal successors, (605), 467 states have internal predecessors, (605), 137 states have call successors, (137), 40 states have call predecessors, (137), 39 states have return successors, (132), 129 states have call predecessors, (132), 132 states have call successors, (132) Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-18 05:39:33,286 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 [] [2021-12-18 05:39:36,670 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:39:38,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:39:39,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:39:39,215 INFO L93 Difference]: Finished difference Result 1372 states and 1975 transitions. [2021-12-18 05:39:39,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 05:39:39,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 133 [2021-12-18 05:39:39,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:39:39,239 INFO L225 Difference]: With dead ends: 1372 [2021-12-18 05:39:39,245 INFO L226 Difference]: Without dead ends: 736 [2021-12-18 05:39:39,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-18 05:39:39,264 INFO L933 BasicCegarLoop]: 812 mSDtfsCounter, 558 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 402 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 1579 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 402 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2021-12-18 05:39:39,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [575 Valid, 1579 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [402 Valid, 506 Invalid, 3 Unknown, 0 Unchecked, 8.0s Time] [2021-12-18 05:39:39,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2021-12-18 05:39:39,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 615. [2021-12-18 05:39:39,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 444 states have (on average 1.3288288288288288) internal successors, (590), 454 states have internal predecessors, (590), 132 states have call successors, (132), 39 states have call predecessors, (132), 38 states have return successors, (130), 127 states have call predecessors, (130), 130 states have call successors, (130) [2021-12-18 05:39:39,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 852 transitions. [2021-12-18 05:39:39,370 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 852 transitions. Word has length 133 [2021-12-18 05:39:39,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:39:39,370 INFO L470 AbstractCegarLoop]: Abstraction has 615 states and 852 transitions. [2021-12-18 05:39:39,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-18 05:39:39,371 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 852 transitions. [2021-12-18 05:39:39,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-18 05:39:39,374 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:39:39,374 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:39:39,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 05:39:39,374 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:39:39,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:39:39,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1666389307, now seen corresponding path program 1 times [2021-12-18 05:39:39,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:39:39,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742505064] [2021-12-18 05:39:39,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:39:39,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:39:39,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:39,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:39:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:39,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:39,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:39,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:39,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:39:39,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:39,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:39,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:39,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:39,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:39,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:39:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:39,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:39,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:39,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:39,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:39,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:39:39,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:39,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:39,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:39,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:39:39,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:39,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:39,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:39,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:39,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:39,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:39:39,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:39,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:39,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:39,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:39,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:39:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:39,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:39,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:39,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 05:39:39,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:39,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:39,750 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2021-12-18 05:39:39,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:39:39,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742505064] [2021-12-18 05:39:39,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742505064] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:39:39,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:39:39,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 05:39:39,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903953995] [2021-12-18 05:39:39,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:39:39,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 05:39:39,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:39:39,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 05:39:39,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 05:39:39,754 INFO L87 Difference]: Start difference. First operand 615 states and 852 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2021-12-18 05:39:42,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:39:45,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:39:47,401 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:39:49,428 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:39:53,807 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:39:55,817 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:39:57,835 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:39:58,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:39:58,569 INFO L93 Difference]: Finished difference Result 2011 states and 2837 transitions. [2021-12-18 05:39:58,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 05:39:58,570 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 133 [2021-12-18 05:39:58,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:39:58,586 INFO L225 Difference]: With dead ends: 2011 [2021-12-18 05:39:58,586 INFO L226 Difference]: Without dead ends: 1420 [2021-12-18 05:39:58,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-18 05:39:58,593 INFO L933 BasicCegarLoop]: 901 mSDtfsCounter, 1570 mSDsluCounter, 1865 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 807 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1667 SdHoareTripleChecker+Valid, 2766 SdHoareTripleChecker+Invalid, 2099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 807 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2021-12-18 05:39:58,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1667 Valid, 2766 Invalid, 2099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [807 Valid, 1285 Invalid, 7 Unknown, 0 Unchecked, 18.5s Time] [2021-12-18 05:39:58,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2021-12-18 05:39:58,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1186. [2021-12-18 05:39:58,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1186 states, 860 states have (on average 1.3325581395348838) internal successors, (1146), 879 states have internal predecessors, (1146), 250 states have call successors, (250), 75 states have call predecessors, (250), 75 states have return successors, (252), 243 states have call predecessors, (252), 248 states have call successors, (252) [2021-12-18 05:39:58,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1186 states to 1186 states and 1648 transitions. [2021-12-18 05:39:58,663 INFO L78 Accepts]: Start accepts. Automaton has 1186 states and 1648 transitions. Word has length 133 [2021-12-18 05:39:58,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:39:58,664 INFO L470 AbstractCegarLoop]: Abstraction has 1186 states and 1648 transitions. [2021-12-18 05:39:58,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2021-12-18 05:39:58,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1186 states and 1648 transitions. [2021-12-18 05:39:58,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-12-18 05:39:58,671 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:39:58,671 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:39:58,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 05:39:58,671 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:39:58,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:39:58,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1873060620, now seen corresponding path program 1 times [2021-12-18 05:39:58,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:39:58,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050478160] [2021-12-18 05:39:58,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:39:58,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:39:58,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:58,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:39:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:58,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:58,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:58,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:58,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:39:58,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:59,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:59,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:59,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:59,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:59,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:39:59,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:59,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:59,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:59,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:39:59,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:59,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:59,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:59,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:59,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:59,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:39:59,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:59,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:59,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:59,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:59,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:59,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:39:59,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:59,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:59,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:59,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:59,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:59,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:39:59,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:59,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:59,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 05:39:59,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:59,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:59,251 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2021-12-18 05:39:59,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:39:59,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050478160] [2021-12-18 05:39:59,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050478160] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:39:59,252 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:39:59,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 05:39:59,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298838030] [2021-12-18 05:39:59,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:39:59,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 05:39:59,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:39:59,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 05:39:59,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-18 05:39:59,254 INFO L87 Difference]: Start difference. First operand 1186 states and 1648 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2021-12-18 05:40:01,584 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 [] [2021-12-18 05:40:04,292 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:40:06,304 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:40:10,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:40:13,303 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:40:15,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:40:16,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:40:16,193 INFO L93 Difference]: Finished difference Result 2623 states and 3679 transitions. [2021-12-18 05:40:16,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 05:40:16,193 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 136 [2021-12-18 05:40:16,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:40:16,202 INFO L225 Difference]: With dead ends: 2623 [2021-12-18 05:40:16,202 INFO L226 Difference]: Without dead ends: 1461 [2021-12-18 05:40:16,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-12-18 05:40:16,208 INFO L933 BasicCegarLoop]: 1010 mSDtfsCounter, 1415 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 1185 mSolverCounterSat, 578 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 3357 SdHoareTripleChecker+Invalid, 1769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 578 IncrementalHoareTripleChecker+Valid, 1185 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2021-12-18 05:40:16,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1498 Valid, 3357 Invalid, 1769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [578 Valid, 1185 Invalid, 6 Unknown, 0 Unchecked, 16.6s Time] [2021-12-18 05:40:16,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2021-12-18 05:40:16,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1212. [2021-12-18 05:40:16,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1212 states, 880 states have (on average 1.3295454545454546) internal successors, (1170), 899 states have internal predecessors, (1170), 251 states have call successors, (251), 80 states have call predecessors, (251), 80 states have return successors, (253), 244 states have call predecessors, (253), 249 states have call successors, (253) [2021-12-18 05:40:16,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1212 states to 1212 states and 1674 transitions. [2021-12-18 05:40:16,260 INFO L78 Accepts]: Start accepts. Automaton has 1212 states and 1674 transitions. Word has length 136 [2021-12-18 05:40:16,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:40:16,260 INFO L470 AbstractCegarLoop]: Abstraction has 1212 states and 1674 transitions. [2021-12-18 05:40:16,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2021-12-18 05:40:16,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1212 states and 1674 transitions. [2021-12-18 05:40:16,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-12-18 05:40:16,263 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:40:16,263 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:40:16,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 05:40:16,264 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:40:16,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:40:16,264 INFO L85 PathProgramCache]: Analyzing trace with hash -764946523, now seen corresponding path program 1 times [2021-12-18 05:40:16,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:40:16,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365007717] [2021-12-18 05:40:16,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:40:16,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:40:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:16,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:40:16,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:16,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:16,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:16,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:16,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:16,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:40:16,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:16,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:16,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:16,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:16,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:16,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:40:16,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:16,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:16,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:16,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:16,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:40:16,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:16,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:16,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:16,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:16,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:16,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:40:16,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:16,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:16,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:16,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:16,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:40:16,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:16,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:16,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:16,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:16,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:16,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:40:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:16,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:16,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:16,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 05:40:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:16,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:16,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:16,627 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2021-12-18 05:40:16,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:40:16,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365007717] [2021-12-18 05:40:16,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365007717] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:40:16,628 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:40:16,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 05:40:16,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037892773] [2021-12-18 05:40:16,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:40:16,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 05:40:16,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:40:16,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 05:40:16,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 05:40:16,630 INFO L87 Difference]: Start difference. First operand 1212 states and 1674 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-18 05:40:18,886 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 [] [2021-12-18 05:40:21,979 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:40:24,019 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:40:28,026 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:40:30,035 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:40:30,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:40:30,612 INFO L93 Difference]: Finished difference Result 4018 states and 5662 transitions. [2021-12-18 05:40:30,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 05:40:30,613 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 144 [2021-12-18 05:40:30,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:40:30,630 INFO L225 Difference]: With dead ends: 4018 [2021-12-18 05:40:30,631 INFO L226 Difference]: Without dead ends: 2826 [2021-12-18 05:40:30,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-18 05:40:30,641 INFO L933 BasicCegarLoop]: 913 mSDtfsCounter, 1574 mSDsluCounter, 1524 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 809 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1668 SdHoareTripleChecker+Valid, 2437 SdHoareTripleChecker+Invalid, 1787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 809 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2021-12-18 05:40:30,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1668 Valid, 2437 Invalid, 1787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [809 Valid, 973 Invalid, 5 Unknown, 0 Unchecked, 13.7s Time] [2021-12-18 05:40:30,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2826 states. [2021-12-18 05:40:30,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2826 to 2337. [2021-12-18 05:40:30,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2337 states, 1701 states have (on average 1.332745443856555) internal successors, (2267), 1734 states have internal predecessors, (2267), 483 states have call successors, (483), 152 states have call predecessors, (483), 152 states have return successors, (489), 472 states have call predecessors, (489), 481 states have call successors, (489) [2021-12-18 05:40:30,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2337 states to 2337 states and 3239 transitions. [2021-12-18 05:40:30,744 INFO L78 Accepts]: Start accepts. Automaton has 2337 states and 3239 transitions. Word has length 144 [2021-12-18 05:40:30,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:40:30,745 INFO L470 AbstractCegarLoop]: Abstraction has 2337 states and 3239 transitions. [2021-12-18 05:40:30,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-18 05:40:30,746 INFO L276 IsEmpty]: Start isEmpty. Operand 2337 states and 3239 transitions. [2021-12-18 05:40:30,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-12-18 05:40:30,748 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:40:30,748 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:40:30,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 05:40:30,748 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:40:30,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:40:30,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1630948905, now seen corresponding path program 1 times [2021-12-18 05:40:30,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:40:30,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931222837] [2021-12-18 05:40:30,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:40:30,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:40:30,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:30,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:40:30,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:30,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:30,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:30,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:30,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:40:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:30,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:30,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:30,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:30,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:40:30,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:30,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:30,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:30,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:40:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:30,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:30,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:30,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:30,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:30,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:40:30,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:30,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:30,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:30,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:30,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:30,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:40:30,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:30,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:31,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:31,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:31,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:40:31,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:31,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:31,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:31,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 05:40:31,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:31,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:31,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:31,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-18 05:40:31,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:31,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 05:40:31,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:31,101 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2021-12-18 05:40:31,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:40:31,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931222837] [2021-12-18 05:40:31,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931222837] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:40:31,102 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:40:31,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 05:40:31,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833415654] [2021-12-18 05:40:31,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:40:31,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 05:40:31,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:40:31,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 05:40:31,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-18 05:40:31,104 INFO L87 Difference]: Start difference. First operand 2337 states and 3239 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-18 05:40:34,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:40:36,242 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:40:39,779 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:40:41,814 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:40:42,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:40:42,323 INFO L93 Difference]: Finished difference Result 4849 states and 6763 transitions. [2021-12-18 05:40:42,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 05:40:42,324 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 150 [2021-12-18 05:40:42,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:40:42,335 INFO L225 Difference]: With dead ends: 4849 [2021-12-18 05:40:42,336 INFO L226 Difference]: Without dead ends: 2536 [2021-12-18 05:40:42,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-12-18 05:40:42,346 INFO L933 BasicCegarLoop]: 685 mSDtfsCounter, 1185 mSDsluCounter, 987 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 592 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1269 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 1229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 592 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2021-12-18 05:40:42,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1269 Valid, 1672 Invalid, 1229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [592 Valid, 633 Invalid, 4 Unknown, 0 Unchecked, 10.9s Time] [2021-12-18 05:40:42,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2536 states. [2021-12-18 05:40:42,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2536 to 2005. [2021-12-18 05:40:42,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2005 states, 1460 states have (on average 1.3253424657534247) internal successors, (1935), 1485 states have internal predecessors, (1935), 403 states have call successors, (403), 142 states have call predecessors, (403), 141 states have return successors, (401), 393 states have call predecessors, (401), 401 states have call successors, (401) [2021-12-18 05:40:42,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2005 states to 2005 states and 2739 transitions. [2021-12-18 05:40:42,419 INFO L78 Accepts]: Start accepts. Automaton has 2005 states and 2739 transitions. Word has length 150 [2021-12-18 05:40:42,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:40:42,419 INFO L470 AbstractCegarLoop]: Abstraction has 2005 states and 2739 transitions. [2021-12-18 05:40:42,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-18 05:40:42,420 INFO L276 IsEmpty]: Start isEmpty. Operand 2005 states and 2739 transitions. [2021-12-18 05:40:42,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-18 05:40:42,424 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:40:42,425 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:40:42,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 05:40:42,425 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:40:42,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:40:42,426 INFO L85 PathProgramCache]: Analyzing trace with hash -2114242925, now seen corresponding path program 1 times [2021-12-18 05:40:42,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:40:42,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826838924] [2021-12-18 05:40:42,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:40:42,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:40:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:42,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:40:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:42,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:42,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:42,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:42,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:42,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:40:42,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:42,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:42,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:42,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:42,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:40:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:42,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:42,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:42,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:42,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:40:42,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:42,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:42,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:42,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:40:42,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:42,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:42,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:42,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:42,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:40:42,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:42,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:42,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:42,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:42,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:42,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:40:42,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:42,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:42,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:42,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 05:40:42,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:42,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:42,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:42,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 05:40:42,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:42,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 05:40:42,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:42,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 05:40:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:42,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-18 05:40:42,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:42,812 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2021-12-18 05:40:42,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:40:42,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826838924] [2021-12-18 05:40:42,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826838924] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:40:42,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:40:42,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 05:40:42,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966195916] [2021-12-18 05:40:42,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:40:42,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 05:40:42,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:40:42,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 05:40:42,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-18 05:40:42,815 INFO L87 Difference]: Start difference. First operand 2005 states and 2739 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 05:40:45,940 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:40:47,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:40:51,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:40:53,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:40:54,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:40:54,052 INFO L93 Difference]: Finished difference Result 4611 states and 6384 transitions. [2021-12-18 05:40:54,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 05:40:54,052 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 175 [2021-12-18 05:40:54,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:40:54,063 INFO L225 Difference]: With dead ends: 4611 [2021-12-18 05:40:54,065 INFO L226 Difference]: Without dead ends: 2630 [2021-12-18 05:40:54,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-18 05:40:54,076 INFO L933 BasicCegarLoop]: 767 mSDtfsCounter, 1116 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 1053 mSolverCounterSat, 628 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 2437 SdHoareTripleChecker+Invalid, 1685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 628 IncrementalHoareTripleChecker+Valid, 1053 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2021-12-18 05:40:54,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1198 Valid, 2437 Invalid, 1685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [628 Valid, 1053 Invalid, 4 Unknown, 0 Unchecked, 11.0s Time] [2021-12-18 05:40:54,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2630 states. [2021-12-18 05:40:54,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2630 to 2080. [2021-12-18 05:40:54,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2080 states, 1512 states have (on average 1.3326719576719577) internal successors, (2015), 1537 states have internal predecessors, (2015), 416 states have call successors, (416), 152 states have call predecessors, (416), 151 states have return successors, (414), 410 states have call predecessors, (414), 414 states have call successors, (414) [2021-12-18 05:40:54,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2080 states to 2080 states and 2845 transitions. [2021-12-18 05:40:54,173 INFO L78 Accepts]: Start accepts. Automaton has 2080 states and 2845 transitions. Word has length 175 [2021-12-18 05:40:54,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:40:54,174 INFO L470 AbstractCegarLoop]: Abstraction has 2080 states and 2845 transitions. [2021-12-18 05:40:54,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 05:40:54,175 INFO L276 IsEmpty]: Start isEmpty. Operand 2080 states and 2845 transitions. [2021-12-18 05:40:54,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-12-18 05:40:54,179 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:40:54,180 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:40:54,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 05:40:54,181 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:40:54,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:40:54,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1065041216, now seen corresponding path program 1 times [2021-12-18 05:40:54,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:40:54,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268989712] [2021-12-18 05:40:54,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:40:54,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:40:54,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:54,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:40:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:54,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:54,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:54,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:54,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:40:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:54,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:54,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:54,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:54,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:40:54,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:54,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:54,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:54,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:54,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:40:54,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:54,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:54,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:54,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:54,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:54,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:40:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:54,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:54,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:54,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:54,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:40:54,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:54,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:54,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:54,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:54,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:54,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:40:54,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:54,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:54,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 05:40:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:54,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:54,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:54,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 05:40:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:54,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-18 05:40:54,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:54,646 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2021-12-18 05:40:54,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:40:54,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268989712] [2021-12-18 05:40:54,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268989712] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:40:54,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:40:54,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 05:40:54,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588372181] [2021-12-18 05:40:54,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:40:54,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 05:40:54,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:40:54,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 05:40:54,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-12-18 05:40:54,649 INFO L87 Difference]: Start difference. First operand 2080 states and 2845 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2021-12-18 05:40:57,969 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:41:01,349 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:41:01,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:41:01,944 INFO L93 Difference]: Finished difference Result 4838 states and 6911 transitions. [2021-12-18 05:41:01,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 05:41:01,945 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 178 [2021-12-18 05:41:01,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:41:01,973 INFO L225 Difference]: With dead ends: 4838 [2021-12-18 05:41:01,973 INFO L226 Difference]: Without dead ends: 3141 [2021-12-18 05:41:01,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-12-18 05:41:01,978 INFO L933 BasicCegarLoop]: 859 mSDtfsCounter, 695 mSDsluCounter, 2237 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 321 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 3096 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-12-18 05:41:01,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [749 Valid, 3096 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 1048 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2021-12-18 05:41:01,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3141 states. [2021-12-18 05:41:02,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3141 to 2084. [2021-12-18 05:41:02,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2084 states, 1516 states have (on average 1.3317941952506596) internal successors, (2019), 1541 states have internal predecessors, (2019), 416 states have call successors, (416), 152 states have call predecessors, (416), 151 states have return successors, (414), 410 states have call predecessors, (414), 414 states have call successors, (414) [2021-12-18 05:41:02,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2084 states to 2084 states and 2849 transitions. [2021-12-18 05:41:02,051 INFO L78 Accepts]: Start accepts. Automaton has 2084 states and 2849 transitions. Word has length 178 [2021-12-18 05:41:02,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:41:02,051 INFO L470 AbstractCegarLoop]: Abstraction has 2084 states and 2849 transitions. [2021-12-18 05:41:02,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2021-12-18 05:41:02,052 INFO L276 IsEmpty]: Start isEmpty. Operand 2084 states and 2849 transitions. [2021-12-18 05:41:02,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-12-18 05:41:02,055 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:41:02,055 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:41:02,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 05:41:02,056 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:41:02,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:41:02,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1338240510, now seen corresponding path program 1 times [2021-12-18 05:41:02,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:41:02,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143543125] [2021-12-18 05:41:02,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:41:02,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:41:02,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:02,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:41:02,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:02,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:02,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:02,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:02,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:02,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:41:02,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:02,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:02,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:02,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:02,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:41:02,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:02,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:02,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:02,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:41:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:02,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:02,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:02,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:02,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:41:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:02,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:02,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:02,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:02,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:41:02,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:02,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:02,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:02,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:02,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:02,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:41:02,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:02,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:02,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:02,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 05:41:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:02,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:02,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:02,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 05:41:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:02,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 05:41:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:02,353 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2021-12-18 05:41:02,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:41:02,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143543125] [2021-12-18 05:41:02,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143543125] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:41:02,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:41:02,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 05:41:02,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352600084] [2021-12-18 05:41:02,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:41:02,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 05:41:02,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:41:02,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 05:41:02,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-12-18 05:41:02,355 INFO L87 Difference]: Start difference. First operand 2084 states and 2849 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2021-12-18 05:41:05,255 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:41:09,444 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:41:11,578 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 [] [2021-12-18 05:41:11,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:41:11,985 INFO L93 Difference]: Finished difference Result 4846 states and 6919 transitions. [2021-12-18 05:41:11,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 05:41:11,985 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 179 [2021-12-18 05:41:11,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:41:12,000 INFO L225 Difference]: With dead ends: 4846 [2021-12-18 05:41:12,000 INFO L226 Difference]: Without dead ends: 3145 [2021-12-18 05:41:12,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-12-18 05:41:12,005 INFO L933 BasicCegarLoop]: 870 mSDtfsCounter, 788 mSDsluCounter, 2234 mSDsCounter, 0 mSdLazyCounter, 930 mSolverCounterSat, 348 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 3104 SdHoareTripleChecker+Invalid, 1281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 930 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2021-12-18 05:41:12,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [842 Valid, 3104 Invalid, 1281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 930 Invalid, 3 Unknown, 0 Unchecked, 9.4s Time] [2021-12-18 05:41:12,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3145 states. [2021-12-18 05:41:12,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3145 to 2084. [2021-12-18 05:41:12,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2084 states, 1516 states have (on average 1.3317941952506596) internal successors, (2019), 1541 states have internal predecessors, (2019), 416 states have call successors, (416), 152 states have call predecessors, (416), 151 states have return successors, (414), 410 states have call predecessors, (414), 414 states have call successors, (414) [2021-12-18 05:41:12,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2084 states to 2084 states and 2849 transitions. [2021-12-18 05:41:12,072 INFO L78 Accepts]: Start accepts. Automaton has 2084 states and 2849 transitions. Word has length 179 [2021-12-18 05:41:12,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:41:12,073 INFO L470 AbstractCegarLoop]: Abstraction has 2084 states and 2849 transitions. [2021-12-18 05:41:12,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2021-12-18 05:41:12,073 INFO L276 IsEmpty]: Start isEmpty. Operand 2084 states and 2849 transitions. [2021-12-18 05:41:12,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-12-18 05:41:12,076 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:41:12,076 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:41:12,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 05:41:12,077 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:41:12,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:41:12,077 INFO L85 PathProgramCache]: Analyzing trace with hash -463674758, now seen corresponding path program 1 times [2021-12-18 05:41:12,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:41:12,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132794918] [2021-12-18 05:41:12,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:41:12,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:41:12,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:12,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:41:12,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:12,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:12,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:12,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:12,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:12,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:41:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:12,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:12,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:12,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:12,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:41:12,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:12,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:12,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:12,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:12,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:12,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:41:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:12,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:12,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:12,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:12,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:12,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:41:12,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:12,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:12,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:12,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:12,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:41:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:12,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:12,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:12,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:12,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:41:12,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:12,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:12,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:12,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 05:41:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:12,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:12,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:12,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 05:41:12,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:12,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 05:41:12,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:12,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 05:41:12,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:12,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 05:41:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:12,426 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2021-12-18 05:41:12,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:41:12,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132794918] [2021-12-18 05:41:12,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132794918] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:41:12,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:41:12,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 05:41:12,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780922036] [2021-12-18 05:41:12,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:41:12,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 05:41:12,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:41:12,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 05:41:12,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-18 05:41:12,428 INFO L87 Difference]: Start difference. First operand 2084 states and 2849 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 05:41:15,815 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 [] [2021-12-18 05:41:17,825 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:41:19,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:41:23,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:41:25,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:41:27,048 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:41:27,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:41:27,641 INFO L93 Difference]: Finished difference Result 4334 states and 6019 transitions. [2021-12-18 05:41:27,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 05:41:27,642 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 185 [2021-12-18 05:41:27,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:41:27,670 INFO L225 Difference]: With dead ends: 4334 [2021-12-18 05:41:27,683 INFO L226 Difference]: Without dead ends: 2633 [2021-12-18 05:41:27,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-12-18 05:41:27,690 INFO L933 BasicCegarLoop]: 664 mSDtfsCounter, 397 mSDsluCounter, 2025 mSDsCounter, 0 mSdLazyCounter, 1164 mSolverCounterSat, 321 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 2689 SdHoareTripleChecker+Invalid, 1491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 1164 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2021-12-18 05:41:27,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [422 Valid, 2689 Invalid, 1491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 1164 Invalid, 6 Unknown, 0 Unchecked, 15.0s Time] [2021-12-18 05:41:27,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2633 states. [2021-12-18 05:41:27,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2633 to 2088. [2021-12-18 05:41:27,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2088 states, 1520 states have (on average 1.330921052631579) internal successors, (2023), 1545 states have internal predecessors, (2023), 416 states have call successors, (416), 152 states have call predecessors, (416), 151 states have return successors, (414), 410 states have call predecessors, (414), 414 states have call successors, (414) [2021-12-18 05:41:27,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2088 states to 2088 states and 2853 transitions. [2021-12-18 05:41:27,757 INFO L78 Accepts]: Start accepts. Automaton has 2088 states and 2853 transitions. Word has length 185 [2021-12-18 05:41:27,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:41:27,757 INFO L470 AbstractCegarLoop]: Abstraction has 2088 states and 2853 transitions. [2021-12-18 05:41:27,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 05:41:27,757 INFO L276 IsEmpty]: Start isEmpty. Operand 2088 states and 2853 transitions. [2021-12-18 05:41:27,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-12-18 05:41:27,761 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:41:27,761 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:41:27,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 05:41:27,761 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:41:27,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:41:27,762 INFO L85 PathProgramCache]: Analyzing trace with hash 255512636, now seen corresponding path program 1 times [2021-12-18 05:41:27,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:41:27,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785268561] [2021-12-18 05:41:27,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:41:27,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:41:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:27,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:41:27,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:27,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:27,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:27,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:27,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:27,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:41:27,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:27,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:27,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:27,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:27,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:41:27,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:27,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:27,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:27,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:27,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:27,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:41:27,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:27,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:27,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:27,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:27,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:41:27,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:27,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:27,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:27,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:41:27,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:28,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:28,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:28,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:28,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:41:28,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:28,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:28,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:28,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 05:41:28,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:28,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:28,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:28,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 05:41:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:28,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 05:41:28,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:28,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:28,225 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2021-12-18 05:41:28,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:41:28,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785268561] [2021-12-18 05:41:28,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785268561] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:41:28,226 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:41:28,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-18 05:41:28,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783386385] [2021-12-18 05:41:28,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:41:28,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-18 05:41:28,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:41:28,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-18 05:41:28,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-18 05:41:28,228 INFO L87 Difference]: Start difference. First operand 2088 states and 2853 transitions. Second operand has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2021-12-18 05:41:32,123 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 [] [2021-12-18 05:41:34,141 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:41:38,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:41:40,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:41:43,139 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:41:45,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:41:47,512 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:41:48,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:41:48,072 INFO L93 Difference]: Finished difference Result 5662 states and 8325 transitions. [2021-12-18 05:41:48,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-18 05:41:48,072 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 185 [2021-12-18 05:41:48,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:41:48,104 INFO L225 Difference]: With dead ends: 5662 [2021-12-18 05:41:48,105 INFO L226 Difference]: Without dead ends: 3957 [2021-12-18 05:41:48,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2021-12-18 05:41:48,112 INFO L933 BasicCegarLoop]: 905 mSDtfsCounter, 1412 mSDsluCounter, 5089 mSDsCounter, 0 mSdLazyCounter, 1928 mSolverCounterSat, 510 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1477 SdHoareTripleChecker+Valid, 5994 SdHoareTripleChecker+Invalid, 2445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 510 IncrementalHoareTripleChecker+Valid, 1928 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2021-12-18 05:41:48,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1477 Valid, 5994 Invalid, 2445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [510 Valid, 1928 Invalid, 7 Unknown, 0 Unchecked, 19.4s Time] [2021-12-18 05:41:48,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3957 states. [2021-12-18 05:41:48,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3957 to 2096. [2021-12-18 05:41:48,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2096 states, 1526 states have (on average 1.3296199213630406) internal successors, (2029), 1551 states have internal predecessors, (2029), 416 states have call successors, (416), 152 states have call predecessors, (416), 153 states have return successors, (418), 412 states have call predecessors, (418), 414 states have call successors, (418) [2021-12-18 05:41:48,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2096 states to 2096 states and 2863 transitions. [2021-12-18 05:41:48,227 INFO L78 Accepts]: Start accepts. Automaton has 2096 states and 2863 transitions. Word has length 185 [2021-12-18 05:41:48,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:41:48,227 INFO L470 AbstractCegarLoop]: Abstraction has 2096 states and 2863 transitions. [2021-12-18 05:41:48,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2021-12-18 05:41:48,228 INFO L276 IsEmpty]: Start isEmpty. Operand 2096 states and 2863 transitions. [2021-12-18 05:41:48,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-12-18 05:41:48,233 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:41:48,233 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:41:48,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 05:41:48,233 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:41:48,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:41:48,234 INFO L85 PathProgramCache]: Analyzing trace with hash -388615980, now seen corresponding path program 1 times [2021-12-18 05:41:48,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:41:48,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782100401] [2021-12-18 05:41:48,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:41:48,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:41:48,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:48,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:41:48,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:48,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:48,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:48,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:48,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:48,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:41:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:48,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:48,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:48,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:41:48,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:48,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:48,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:48,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:48,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:41:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:48,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:48,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:48,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:48,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:41:48,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:48,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:48,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:48,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:48,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:48,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:41:48,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:48,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:48,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:48,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:48,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:48,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:41:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:48,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:48,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:48,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 05:41:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:48,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:48,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:48,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 05:41:48,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:48,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-18 05:41:48,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:48,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:48,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:49,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 05:41:49,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:49,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 05:41:49,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:49,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 05:41:49,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:49,053 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2021-12-18 05:41:49,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:41:49,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782100401] [2021-12-18 05:41:49,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782100401] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:41:49,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:41:49,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-18 05:41:49,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084043100] [2021-12-18 05:41:49,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:41:49,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-18 05:41:49,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:41:49,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-18 05:41:49,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-18 05:41:49,055 INFO L87 Difference]: Start difference. First operand 2096 states and 2863 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 05:41:52,375 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:41:54,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:41:58,452 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:42:00,461 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:42:01,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:42:01,113 INFO L93 Difference]: Finished difference Result 4364 states and 6055 transitions. [2021-12-18 05:42:01,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 05:42:01,114 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) Word has length 197 [2021-12-18 05:42:01,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:42:01,125 INFO L225 Difference]: With dead ends: 4364 [2021-12-18 05:42:01,130 INFO L226 Difference]: Without dead ends: 2651 [2021-12-18 05:42:01,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2021-12-18 05:42:01,136 INFO L933 BasicCegarLoop]: 686 mSDtfsCounter, 790 mSDsluCounter, 4165 mSDsCounter, 0 mSdLazyCounter, 1656 mSolverCounterSat, 655 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 4851 SdHoareTripleChecker+Invalid, 2315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 655 IncrementalHoareTripleChecker+Valid, 1656 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2021-12-18 05:42:01,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [815 Valid, 4851 Invalid, 2315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [655 Valid, 1656 Invalid, 4 Unknown, 0 Unchecked, 11.7s Time] [2021-12-18 05:42:01,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2651 states. [2021-12-18 05:42:01,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2651 to 2108. [2021-12-18 05:42:01,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2108 states, 1534 states have (on average 1.3279009126466754) internal successors, (2037), 1559 states have internal predecessors, (2037), 416 states have call successors, (416), 152 states have call predecessors, (416), 157 states have return successors, (434), 416 states have call predecessors, (434), 414 states have call successors, (434) [2021-12-18 05:42:01,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2108 states to 2108 states and 2887 transitions. [2021-12-18 05:42:01,256 INFO L78 Accepts]: Start accepts. Automaton has 2108 states and 2887 transitions. Word has length 197 [2021-12-18 05:42:01,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:42:01,257 INFO L470 AbstractCegarLoop]: Abstraction has 2108 states and 2887 transitions. [2021-12-18 05:42:01,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 05:42:01,257 INFO L276 IsEmpty]: Start isEmpty. Operand 2108 states and 2887 transitions. [2021-12-18 05:42:01,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-12-18 05:42:01,261 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:42:01,261 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:42:01,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 05:42:01,262 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:42:01,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:42:01,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1443188453, now seen corresponding path program 1 times [2021-12-18 05:42:01,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:42:01,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316785881] [2021-12-18 05:42:01,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:42:01,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:42:01,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:01,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:42:01,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:01,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:01,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:01,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:42:01,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:01,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:01,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:01,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:01,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:42:01,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:01,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:01,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:01,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:01,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:42:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:01,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:01,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:01,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:01,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:42:01,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:01,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:01,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:01,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:01,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:42:01,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:01,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:01,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:01,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:01,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:01,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:42:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:01,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:01,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 05:42:01,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:01,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:01,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:01,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 05:42:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:01,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-18 05:42:01,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:01,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:01,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:01,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 05:42:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:01,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 05:42:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:01,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-18 05:42:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:01,815 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2021-12-18 05:42:01,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:42:01,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316785881] [2021-12-18 05:42:01,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316785881] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:42:01,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:42:01,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-18 05:42:01,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794994938] [2021-12-18 05:42:01,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:42:01,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-18 05:42:01,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:42:01,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-18 05:42:01,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-12-18 05:42:01,817 INFO L87 Difference]: Start difference. First operand 2108 states and 2887 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 05:42:05,208 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:42:07,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:42:12,241 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:42:14,256 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:42:16,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:42:18,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:42:19,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:42:19,080 INFO L93 Difference]: Finished difference Result 4763 states and 6744 transitions. [2021-12-18 05:42:19,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 05:42:19,081 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) Word has length 196 [2021-12-18 05:42:19,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:42:19,098 INFO L225 Difference]: With dead ends: 4763 [2021-12-18 05:42:19,099 INFO L226 Difference]: Without dead ends: 3038 [2021-12-18 05:42:19,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2021-12-18 05:42:19,106 INFO L933 BasicCegarLoop]: 882 mSDtfsCounter, 672 mSDsluCounter, 5718 mSDsCounter, 0 mSdLazyCounter, 1775 mSolverCounterSat, 450 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 6600 SdHoareTripleChecker+Invalid, 2231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 1775 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2021-12-18 05:42:19,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [732 Valid, 6600 Invalid, 2231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 1775 Invalid, 6 Unknown, 0 Unchecked, 16.9s Time] [2021-12-18 05:42:19,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3038 states. [2021-12-18 05:42:19,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3038 to 2112. [2021-12-18 05:42:19,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2112 states, 1538 states have (on average 1.3270481144343302) internal successors, (2041), 1561 states have internal predecessors, (2041), 416 states have call successors, (416), 152 states have call predecessors, (416), 157 states have return successors, (434), 418 states have call predecessors, (434), 414 states have call successors, (434) [2021-12-18 05:42:19,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2112 states to 2112 states and 2891 transitions. [2021-12-18 05:42:19,188 INFO L78 Accepts]: Start accepts. Automaton has 2112 states and 2891 transitions. Word has length 196 [2021-12-18 05:42:19,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:42:19,188 INFO L470 AbstractCegarLoop]: Abstraction has 2112 states and 2891 transitions. [2021-12-18 05:42:19,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 05:42:19,189 INFO L276 IsEmpty]: Start isEmpty. Operand 2112 states and 2891 transitions. [2021-12-18 05:42:19,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-12-18 05:42:19,193 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:42:19,193 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:42:19,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-18 05:42:19,193 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:42:19,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:42:19,194 INFO L85 PathProgramCache]: Analyzing trace with hash 316291474, now seen corresponding path program 1 times [2021-12-18 05:42:19,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:42:19,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083988081] [2021-12-18 05:42:19,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:42:19,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:42:19,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:42:19,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:19,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:42:19,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:19,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:42:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:19,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:42:19,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:19,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:19,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:42:19,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:19,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:19,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:42:19,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:19,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:19,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:42:19,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 05:42:19,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:19,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 05:42:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-18 05:42:19,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:42:19,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 05:42:19,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-18 05:42:19,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 05:42:19,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:19,741 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2021-12-18 05:42:19,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:42:19,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083988081] [2021-12-18 05:42:19,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083988081] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 05:42:19,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518009873] [2021-12-18 05:42:19,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:42:19,742 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:42:19,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:42:19,743 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 05:42:19,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-18 05:42:20,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:20,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 2245 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-18 05:42:20,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:42:20,822 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2021-12-18 05:42:20,822 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:42:20,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518009873] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:42:20,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 05:42:20,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 13 [2021-12-18 05:42:20,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372241310] [2021-12-18 05:42:20,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:42:20,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 05:42:20,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:42:20,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 05:42:20,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-12-18 05:42:20,824 INFO L87 Difference]: Start difference. First operand 2112 states and 2891 transitions. Second operand has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-18 05:42:21,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:42:21,017 INFO L93 Difference]: Finished difference Result 4216 states and 5809 transitions. [2021-12-18 05:42:21,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 05:42:21,018 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 203 [2021-12-18 05:42:21,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:42:21,023 INFO L225 Difference]: With dead ends: 4216 [2021-12-18 05:42:21,023 INFO L226 Difference]: Without dead ends: 2117 [2021-12-18 05:42:21,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 251 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2021-12-18 05:42:21,029 INFO L933 BasicCegarLoop]: 714 mSDtfsCounter, 6 mSDsluCounter, 2843 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3557 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 05:42:21,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 3557 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 05:42:21,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2117 states. [2021-12-18 05:42:21,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2117 to 2117. [2021-12-18 05:42:21,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2117 states, 1543 states have (on average 1.3259883344134802) internal successors, (2046), 1566 states have internal predecessors, (2046), 416 states have call successors, (416), 152 states have call predecessors, (416), 157 states have return successors, (434), 418 states have call predecessors, (434), 414 states have call successors, (434) [2021-12-18 05:42:21,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 2896 transitions. [2021-12-18 05:42:21,100 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 2896 transitions. Word has length 203 [2021-12-18 05:42:21,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:42:21,100 INFO L470 AbstractCegarLoop]: Abstraction has 2117 states and 2896 transitions. [2021-12-18 05:42:21,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-18 05:42:21,101 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 2896 transitions. [2021-12-18 05:42:21,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-12-18 05:42:21,104 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:42:21,104 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:42:21,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-18 05:42:21,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-18 05:42:21,327 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:42:21,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:42:21,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1629733937, now seen corresponding path program 1 times [2021-12-18 05:42:21,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:42:21,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842514598] [2021-12-18 05:42:21,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:42:21,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:42:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:42:21,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:21,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:21,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:42:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:21,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:21,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:42:21,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:21,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:21,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:42:21,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:21,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:21,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:42:21,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:21,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:21,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:42:21,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:21,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:21,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:42:21,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 05:42:21,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:21,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 05:42:21,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 05:42:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:21,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:42:21,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 05:42:21,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 05:42:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 05:42:21,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:21,996 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2021-12-18 05:42:21,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:42:21,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842514598] [2021-12-18 05:42:21,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842514598] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 05:42:21,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618830062] [2021-12-18 05:42:21,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:42:21,997 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:42:21,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:42:21,999 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 05:42:22,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-18 05:42:22,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:22,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 2261 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-18 05:42:22,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:42:23,472 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 36 proven. 1 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2021-12-18 05:42:23,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 05:42:24,531 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2021-12-18 05:42:24,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618830062] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 05:42:24,532 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 05:42:24,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 7] total 18 [2021-12-18 05:42:24,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020922267] [2021-12-18 05:42:24,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 05:42:24,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-18 05:42:24,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:42:24,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-18 05:42:24,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-12-18 05:42:24,536 INFO L87 Difference]: Start difference. First operand 2117 states and 2896 transitions. Second operand has 18 states, 16 states have (on average 8.5) internal successors, (136), 13 states have internal predecessors, (136), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-12-18 05:42:29,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:42:31,208 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:42:36,128 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:42:38,152 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:42:38,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:42:38,773 INFO L93 Difference]: Finished difference Result 4735 states and 6580 transitions. [2021-12-18 05:42:38,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-18 05:42:38,773 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 8.5) internal successors, (136), 13 states have internal predecessors, (136), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 204 [2021-12-18 05:42:38,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:42:38,783 INFO L225 Difference]: With dead ends: 4735 [2021-12-18 05:42:38,783 INFO L226 Difference]: Without dead ends: 2631 [2021-12-18 05:42:38,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 450 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=143, Invalid=613, Unknown=0, NotChecked=0, Total=756 [2021-12-18 05:42:38,792 INFO L933 BasicCegarLoop]: 690 mSDtfsCounter, 571 mSDsluCounter, 6449 mSDsCounter, 0 mSdLazyCounter, 2237 mSolverCounterSat, 490 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 7139 SdHoareTripleChecker+Invalid, 2731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 490 IncrementalHoareTripleChecker+Valid, 2237 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2021-12-18 05:42:38,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [594 Valid, 7139 Invalid, 2731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [490 Valid, 2237 Invalid, 4 Unknown, 0 Unchecked, 13.6s Time] [2021-12-18 05:42:38,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2631 states. [2021-12-18 05:42:38,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2631 to 2127. [2021-12-18 05:42:38,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2127 states, 1551 states have (on average 1.324306898774984) internal successors, (2054), 1574 states have internal predecessors, (2054), 417 states have call successors, (417), 153 states have call predecessors, (417), 158 states have return successors, (435), 419 states have call predecessors, (435), 415 states have call successors, (435) [2021-12-18 05:42:38,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2127 states to 2127 states and 2906 transitions. [2021-12-18 05:42:38,890 INFO L78 Accepts]: Start accepts. Automaton has 2127 states and 2906 transitions. Word has length 204 [2021-12-18 05:42:38,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:42:38,891 INFO L470 AbstractCegarLoop]: Abstraction has 2127 states and 2906 transitions. [2021-12-18 05:42:38,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 8.5) internal successors, (136), 13 states have internal predecessors, (136), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-12-18 05:42:38,891 INFO L276 IsEmpty]: Start isEmpty. Operand 2127 states and 2906 transitions. [2021-12-18 05:42:38,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-12-18 05:42:38,896 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:42:38,896 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:42:38,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-18 05:42:39,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-18 05:42:39,112 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:42:39,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:42:39,112 INFO L85 PathProgramCache]: Analyzing trace with hash 78816210, now seen corresponding path program 1 times [2021-12-18 05:42:39,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:42:39,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87124561] [2021-12-18 05:42:39,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:42:39,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:42:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:42:39,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:39,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:39,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:42:39,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:39,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:39,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:42:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:39,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:39,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:42:39,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:39,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:39,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:42:39,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:39,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:42:39,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:39,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:39,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:42:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-18 05:42:39,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:39,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 05:42:39,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 05:42:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:42:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 05:42:39,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 05:42:39,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-18 05:42:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:39,991 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2021-12-18 05:42:39,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:42:39,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87124561] [2021-12-18 05:42:39,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87124561] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 05:42:39,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294391550] [2021-12-18 05:42:39,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:42:39,992 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:42:39,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:42:40,008 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 05:42:40,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-18 05:42:40,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:40,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 2305 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-18 05:42:40,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:42:41,547 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 41 proven. 3 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2021-12-18 05:42:41,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 05:42:42,627 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2021-12-18 05:42:42,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294391550] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 05:42:42,627 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 05:42:42,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 8] total 21 [2021-12-18 05:42:42,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274937220] [2021-12-18 05:42:42,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 05:42:42,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-12-18 05:42:42,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:42:42,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-12-18 05:42:42,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2021-12-18 05:42:42,629 INFO L87 Difference]: Start difference. First operand 2127 states and 2906 transitions. Second operand has 21 states, 19 states have (on average 7.368421052631579) internal successors, (140), 16 states have internal predecessors, (140), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-12-18 05:42:48,073 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:42:50,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:42:55,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:42:57,607 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:42:58,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:42:58,673 INFO L93 Difference]: Finished difference Result 4748 states and 6592 transitions. [2021-12-18 05:42:58,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-18 05:42:58,673 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 7.368421052631579) internal successors, (140), 16 states have internal predecessors, (140), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 207 [2021-12-18 05:42:58,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:42:58,682 INFO L225 Difference]: With dead ends: 4748 [2021-12-18 05:42:58,682 INFO L226 Difference]: Without dead ends: 2636 [2021-12-18 05:42:58,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 454 SyntacticMatches, 4 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=172, Invalid=884, Unknown=0, NotChecked=0, Total=1056 [2021-12-18 05:42:58,691 INFO L933 BasicCegarLoop]: 678 mSDtfsCounter, 530 mSDsluCounter, 7290 mSDsCounter, 0 mSdLazyCounter, 2647 mSolverCounterSat, 470 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 7968 SdHoareTripleChecker+Invalid, 3121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 470 IncrementalHoareTripleChecker+Valid, 2647 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2021-12-18 05:42:58,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [553 Valid, 7968 Invalid, 3121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [470 Valid, 2647 Invalid, 4 Unknown, 0 Unchecked, 15.3s Time] [2021-12-18 05:42:58,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2021-12-18 05:42:58,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2132. [2021-12-18 05:42:58,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2132 states, 1556 states have (on average 1.3232647814910026) internal successors, (2059), 1579 states have internal predecessors, (2059), 417 states have call successors, (417), 153 states have call predecessors, (417), 158 states have return successors, (435), 419 states have call predecessors, (435), 415 states have call successors, (435) [2021-12-18 05:42:58,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 2911 transitions. [2021-12-18 05:42:58,858 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 2911 transitions. Word has length 207 [2021-12-18 05:42:58,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:42:58,859 INFO L470 AbstractCegarLoop]: Abstraction has 2132 states and 2911 transitions. [2021-12-18 05:42:58,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 7.368421052631579) internal successors, (140), 16 states have internal predecessors, (140), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-12-18 05:42:58,859 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 2911 transitions. [2021-12-18 05:42:58,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-12-18 05:42:58,865 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:42:58,865 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:42:58,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-18 05:42:59,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:42:59,080 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:42:59,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:42:59,080 INFO L85 PathProgramCache]: Analyzing trace with hash -161886065, now seen corresponding path program 1 times [2021-12-18 05:42:59,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:42:59,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716576065] [2021-12-18 05:42:59,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:42:59,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:42:59,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:59,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:42:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:59,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:59,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:59,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:59,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:59,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:42:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:59,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:59,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:59,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:59,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:59,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:42:59,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:59,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:59,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:59,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:59,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:59,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:42:59,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:59,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:59,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:59,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:59,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:42:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:59,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:59,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:59,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:59,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:42:59,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:59,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:59,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:59,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:59,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:59,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:42:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:59,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:59,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:59,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 05:42:59,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:59,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:59,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 05:42:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:59,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 05:42:59,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:59,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:59,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:59,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:42:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:59,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 05:42:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:00,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 05:43:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:00,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 05:43:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:00,023 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2021-12-18 05:43:00,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:43:00,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716576065] [2021-12-18 05:43:00,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716576065] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 05:43:00,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818498473] [2021-12-18 05:43:00,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:43:00,024 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:43:00,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:43:00,040 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 05:43:00,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-18 05:43:00,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:00,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 2272 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-18 05:43:00,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:43:01,615 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 34 proven. 21 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2021-12-18 05:43:01,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 05:43:02,961 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2021-12-18 05:43:02,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818498473] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 05:43:02,961 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 05:43:02,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 9] total 25 [2021-12-18 05:43:02,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364734524] [2021-12-18 05:43:02,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 05:43:02,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-12-18 05:43:02,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:43:02,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-12-18 05:43:02,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2021-12-18 05:43:02,964 INFO L87 Difference]: Start difference. First operand 2132 states and 2911 transitions. Second operand has 25 states, 23 states have (on average 6.043478260869565) internal successors, (139), 20 states have internal predecessors, (139), 4 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) [2021-12-18 05:43:09,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:43:15,035 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:43:15,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:43:15,840 INFO L93 Difference]: Finished difference Result 4758 states and 6602 transitions. [2021-12-18 05:43:15,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-18 05:43:15,841 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 6.043478260869565) internal successors, (139), 20 states have internal predecessors, (139), 4 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) Word has length 208 [2021-12-18 05:43:15,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:43:15,847 INFO L225 Difference]: With dead ends: 4758 [2021-12-18 05:43:15,847 INFO L226 Difference]: Without dead ends: 2641 [2021-12-18 05:43:15,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 453 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=205, Invalid=1277, Unknown=0, NotChecked=0, Total=1482 [2021-12-18 05:43:15,854 INFO L933 BasicCegarLoop]: 675 mSDtfsCounter, 803 mSDsluCounter, 8383 mSDsCounter, 0 mSdLazyCounter, 2806 mSolverCounterSat, 675 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 9058 SdHoareTripleChecker+Invalid, 3483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 675 IncrementalHoareTripleChecker+Valid, 2806 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2021-12-18 05:43:15,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [826 Valid, 9058 Invalid, 3483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [675 Valid, 2806 Invalid, 2 Unknown, 0 Unchecked, 11.8s Time] [2021-12-18 05:43:15,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2641 states. [2021-12-18 05:43:15,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2641 to 2137. [2021-12-18 05:43:16,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2137 states, 1561 states have (on average 1.32222934016656) internal successors, (2064), 1584 states have internal predecessors, (2064), 417 states have call successors, (417), 153 states have call predecessors, (417), 158 states have return successors, (435), 419 states have call predecessors, (435), 415 states have call successors, (435) [2021-12-18 05:43:16,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2137 states to 2137 states and 2916 transitions. [2021-12-18 05:43:16,008 INFO L78 Accepts]: Start accepts. Automaton has 2137 states and 2916 transitions. Word has length 208 [2021-12-18 05:43:16,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:43:16,009 INFO L470 AbstractCegarLoop]: Abstraction has 2137 states and 2916 transitions. [2021-12-18 05:43:16,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 6.043478260869565) internal successors, (139), 20 states have internal predecessors, (139), 4 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) [2021-12-18 05:43:16,009 INFO L276 IsEmpty]: Start isEmpty. Operand 2137 states and 2916 transitions. [2021-12-18 05:43:16,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-12-18 05:43:16,013 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:43:16,014 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:43:16,040 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-18 05:43:16,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-12-18 05:43:16,240 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:43:16,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:43:16,240 INFO L85 PathProgramCache]: Analyzing trace with hash 699752443, now seen corresponding path program 2 times [2021-12-18 05:43:16,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:43:16,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429962471] [2021-12-18 05:43:16,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:43:16,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:43:16,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:16,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:43:16,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:16,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:16,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:16,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:43:16,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:16,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:16,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:16,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:16,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:43:16,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:16,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:16,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:16,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:16,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:43:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:16,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:16,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:16,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:16,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:43:16,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:16,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:16,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:16,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:16,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:16,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:43:16,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:16,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:16,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:16,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:16,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:16,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:43:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:16,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:16,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:17,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 05:43:17,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:17,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:17,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:17,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-18 05:43:17,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:17,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 05:43:17,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:17,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:17,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:43:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:17,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 05:43:17,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:17,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-18 05:43:17,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:17,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-18 05:43:17,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:17,283 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2021-12-18 05:43:17,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:43:17,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429962471] [2021-12-18 05:43:17,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429962471] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 05:43:17,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422147351] [2021-12-18 05:43:17,284 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-18 05:43:17,285 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:43:17,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:43:17,300 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 05:43:17,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-18 05:43:18,132 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-18 05:43:18,132 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 05:43:18,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 2351 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-18 05:43:18,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:43:19,068 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 57 proven. 10 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-12-18 05:43:19,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 05:43:20,523 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2021-12-18 05:43:20,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422147351] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 05:43:20,524 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 05:43:20,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 10] total 25 [2021-12-18 05:43:20,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699471926] [2021-12-18 05:43:20,524 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 05:43:20,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-12-18 05:43:20,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:43:20,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-12-18 05:43:20,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2021-12-18 05:43:20,525 INFO L87 Difference]: Start difference. First operand 2137 states and 2916 transitions. Second operand has 25 states, 23 states have (on average 6.217391304347826) internal successors, (143), 20 states have internal predecessors, (143), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-12-18 05:43:28,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:43:35,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:43:35,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:43:35,839 INFO L93 Difference]: Finished difference Result 4816 states and 6667 transitions. [2021-12-18 05:43:35,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-12-18 05:43:35,840 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 6.217391304347826) internal successors, (143), 20 states have internal predecessors, (143), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 210 [2021-12-18 05:43:35,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:43:35,852 INFO L225 Difference]: With dead ends: 4816 [2021-12-18 05:43:35,852 INFO L226 Difference]: Without dead ends: 2699 [2021-12-18 05:43:35,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 457 SyntacticMatches, 5 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=361, Invalid=1991, Unknown=0, NotChecked=0, Total=2352 [2021-12-18 05:43:35,865 INFO L933 BasicCegarLoop]: 681 mSDtfsCounter, 749 mSDsluCounter, 9412 mSDsCounter, 0 mSdLazyCounter, 3248 mSolverCounterSat, 663 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 10093 SdHoareTripleChecker+Invalid, 3913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 663 IncrementalHoareTripleChecker+Valid, 3248 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2021-12-18 05:43:35,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [772 Valid, 10093 Invalid, 3913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [663 Valid, 3248 Invalid, 2 Unknown, 0 Unchecked, 13.3s Time] [2021-12-18 05:43:35,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2699 states. [2021-12-18 05:43:35,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2699 to 2195. [2021-12-18 05:43:35,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2195 states, 1613 states have (on average 1.3161810291382516) internal successors, (2123), 1636 states have internal predecessors, (2123), 417 states have call successors, (417), 159 states have call predecessors, (417), 164 states have return successors, (435), 419 states have call predecessors, (435), 415 states have call successors, (435) [2021-12-18 05:43:35,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2195 states to 2195 states and 2975 transitions. [2021-12-18 05:43:35,982 INFO L78 Accepts]: Start accepts. Automaton has 2195 states and 2975 transitions. Word has length 210 [2021-12-18 05:43:35,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:43:35,982 INFO L470 AbstractCegarLoop]: Abstraction has 2195 states and 2975 transitions. [2021-12-18 05:43:35,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 6.217391304347826) internal successors, (143), 20 states have internal predecessors, (143), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-12-18 05:43:35,983 INFO L276 IsEmpty]: Start isEmpty. Operand 2195 states and 2975 transitions. [2021-12-18 05:43:35,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-12-18 05:43:35,988 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:43:35,988 INFO L514 BasicCegarLoop]: trace histogram [9, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:43:36,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-18 05:43:36,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-18 05:43:36,215 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:43:36,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:43:36,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1665354486, now seen corresponding path program 2 times [2021-12-18 05:43:36,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:43:36,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579242743] [2021-12-18 05:43:36,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:43:36,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:43:36,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:36,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:43:36,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:36,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:36,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:36,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:36,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:43:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:36,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:36,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:36,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:36,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:43:36,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:36,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:36,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:36,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:43:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:36,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:36,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:36,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:43:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:36,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:36,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:36,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:43:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:36,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:36,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:36,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:36,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:43:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:36,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:36,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:37,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 05:43:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:37,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:37,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:37,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 05:43:37,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:37,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 05:43:37,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:37,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:37,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:37,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:43:37,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:37,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-18 05:43:37,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:37,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-18 05:43:37,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:37,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-18 05:43:37,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:37,383 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2021-12-18 05:43:37,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:43:37,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579242743] [2021-12-18 05:43:37,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579242743] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 05:43:37,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867700658] [2021-12-18 05:43:37,384 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-18 05:43:37,384 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:43:37,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:43:37,400 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 05:43:37,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-18 05:43:38,323 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-18 05:43:38,324 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 05:43:38,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 2380 conjuncts, 35 conjunts are in the unsatisfiable core [2021-12-18 05:43:38,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:43:39,783 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 62 proven. 15 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-12-18 05:43:39,783 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 05:43:42,448 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2021-12-18 05:43:42,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867700658] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 05:43:42,448 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 05:43:42,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 11] total 27 [2021-12-18 05:43:42,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051229605] [2021-12-18 05:43:42,448 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 05:43:42,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-18 05:43:42,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:43:42,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-18 05:43:42,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2021-12-18 05:43:42,450 INFO L87 Difference]: Start difference. First operand 2195 states and 2975 transitions. Second operand has 27 states, 25 states have (on average 5.84) internal successors, (146), 22 states have internal predecessors, (146), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-12-18 05:43:54,950 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:43:56,954 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:44:04,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:44:06,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:44:08,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:44:08,075 INFO L93 Difference]: Finished difference Result 4896 states and 6741 transitions. [2021-12-18 05:44:08,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-12-18 05:44:08,075 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 5.84) internal successors, (146), 22 states have internal predecessors, (146), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 212 [2021-12-18 05:44:08,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:44:08,092 INFO L225 Difference]: With dead ends: 4896 [2021-12-18 05:44:08,099 INFO L226 Difference]: Without dead ends: 2709 [2021-12-18 05:44:08,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 460 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 525 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=312, Invalid=2340, Unknown=0, NotChecked=0, Total=2652 [2021-12-18 05:44:08,105 INFO L933 BasicCegarLoop]: 667 mSDtfsCounter, 543 mSDsluCounter, 8881 mSDsCounter, 0 mSdLazyCounter, 3405 mSolverCounterSat, 482 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 9548 SdHoareTripleChecker+Invalid, 3891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 482 IncrementalHoareTripleChecker+Valid, 3405 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2021-12-18 05:44:08,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [566 Valid, 9548 Invalid, 3891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [482 Valid, 3405 Invalid, 4 Unknown, 0 Unchecked, 22.1s Time] [2021-12-18 05:44:08,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2709 states. [2021-12-18 05:44:08,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2709 to 2205. [2021-12-18 05:44:08,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2205 states, 1623 states have (on average 1.3142329020332717) internal successors, (2133), 1646 states have internal predecessors, (2133), 417 states have call successors, (417), 159 states have call predecessors, (417), 164 states have return successors, (435), 419 states have call predecessors, (435), 415 states have call successors, (435) [2021-12-18 05:44:08,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2205 states to 2205 states and 2985 transitions. [2021-12-18 05:44:08,196 INFO L78 Accepts]: Start accepts. Automaton has 2205 states and 2985 transitions. Word has length 212 [2021-12-18 05:44:08,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:44:08,196 INFO L470 AbstractCegarLoop]: Abstraction has 2205 states and 2985 transitions. [2021-12-18 05:44:08,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 5.84) internal successors, (146), 22 states have internal predecessors, (146), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-12-18 05:44:08,197 INFO L276 IsEmpty]: Start isEmpty. Operand 2205 states and 2985 transitions. [2021-12-18 05:44:08,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-12-18 05:44:08,201 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:44:08,201 INFO L514 BasicCegarLoop]: trace histogram [10, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:44:08,248 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-18 05:44:08,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-12-18 05:44:08,416 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:44:08,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:44:08,416 INFO L85 PathProgramCache]: Analyzing trace with hash -197728359, now seen corresponding path program 2 times [2021-12-18 05:44:08,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:44:08,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122007376] [2021-12-18 05:44:08,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:44:08,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:44:08,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:08,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:44:08,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:08,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:08,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:44:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:08,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:44:08,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:08,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:08,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:44:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:08,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:44:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:08,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:08,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:08,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:44:08,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:08,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:44:08,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:08,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:08,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:44:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:08,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:44:08,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:08,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:08,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:08,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:44:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:08,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:44:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:08,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:08,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:44:08,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:08,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:44:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:08,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:08,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:09,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 05:44:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:09,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:09,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:09,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 05:44:09,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:09,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 05:44:09,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:09,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:09,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:09,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:44:09,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:09,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-18 05:44:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:09,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-18 05:44:09,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:09,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-18 05:44:09,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:09,242 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2021-12-18 05:44:09,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:44:09,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122007376] [2021-12-18 05:44:09,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122007376] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 05:44:09,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569460647] [2021-12-18 05:44:09,243 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-18 05:44:09,243 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:44:09,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:44:09,244 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 05:44:09,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-18 05:44:09,926 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-18 05:44:09,926 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 05:44:09,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 2332 conjuncts, 35 conjunts are in the unsatisfiable core [2021-12-18 05:44:09,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:44:11,494 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 67 proven. 21 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-12-18 05:44:11,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 05:44:13,997 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2021-12-18 05:44:13,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569460647] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 05:44:13,998 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 05:44:13,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12, 12] total 29 [2021-12-18 05:44:13,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293277449] [2021-12-18 05:44:13,998 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 05:44:13,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-12-18 05:44:13,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:44:13,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-12-18 05:44:13,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=731, Unknown=0, NotChecked=0, Total=812 [2021-12-18 05:44:13,999 INFO L87 Difference]: Start difference. First operand 2205 states and 2985 transitions. Second operand has 29 states, 27 states have (on average 5.444444444444445) internal successors, (147), 24 states have internal predecessors, (147), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-12-18 05:44:24,510 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:44:26,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:44:32,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:44:34,953 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:44:36,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:44:36,162 INFO L93 Difference]: Finished difference Result 4916 states and 6761 transitions. [2021-12-18 05:44:36,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-12-18 05:44:36,162 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 5.444444444444445) internal successors, (147), 24 states have internal predecessors, (147), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 212 [2021-12-18 05:44:36,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:44:36,168 INFO L225 Difference]: With dead ends: 4916 [2021-12-18 05:44:36,168 INFO L226 Difference]: Without dead ends: 2719 [2021-12-18 05:44:36,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 459 SyntacticMatches, 5 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=335, Invalid=2745, Unknown=0, NotChecked=0, Total=3080 [2021-12-18 05:44:36,172 INFO L933 BasicCegarLoop]: 688 mSDtfsCounter, 722 mSDsluCounter, 11235 mSDsCounter, 0 mSdLazyCounter, 4038 mSolverCounterSat, 650 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 11923 SdHoareTripleChecker+Invalid, 4692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 650 IncrementalHoareTripleChecker+Valid, 4038 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2021-12-18 05:44:36,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [745 Valid, 11923 Invalid, 4692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [650 Valid, 4038 Invalid, 4 Unknown, 0 Unchecked, 18.9s Time] [2021-12-18 05:44:36,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2021-12-18 05:44:36,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 2215. [2021-12-18 05:44:36,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2215 states, 1633 states have (on average 1.3123086344151869) internal successors, (2143), 1656 states have internal predecessors, (2143), 417 states have call successors, (417), 159 states have call predecessors, (417), 164 states have return successors, (435), 419 states have call predecessors, (435), 415 states have call successors, (435) [2021-12-18 05:44:36,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2215 states to 2215 states and 2995 transitions. [2021-12-18 05:44:36,248 INFO L78 Accepts]: Start accepts. Automaton has 2215 states and 2995 transitions. Word has length 212 [2021-12-18 05:44:36,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:44:36,249 INFO L470 AbstractCegarLoop]: Abstraction has 2215 states and 2995 transitions. [2021-12-18 05:44:36,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 5.444444444444445) internal successors, (147), 24 states have internal predecessors, (147), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-12-18 05:44:36,249 INFO L276 IsEmpty]: Start isEmpty. Operand 2215 states and 2995 transitions. [2021-12-18 05:44:36,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-12-18 05:44:36,251 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:44:36,252 INFO L514 BasicCegarLoop]: trace histogram [11, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:44:36,274 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-18 05:44:36,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:44:36,472 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:44:36,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:44:36,473 INFO L85 PathProgramCache]: Analyzing trace with hash 2043921175, now seen corresponding path program 3 times [2021-12-18 05:44:36,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:44:36,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909760018] [2021-12-18 05:44:36,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:44:36,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:44:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:36,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:44:36,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:36,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:36,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:36,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:44:36,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:36,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:44:36,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:36,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:36,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:36,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:44:36,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:36,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:44:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:36,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:36,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:36,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:44:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:36,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:44:36,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:36,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:36,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:36,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:44:36,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:36,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:44:36,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:36,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:36,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:36,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:44:36,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:36,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:44:36,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:36,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:36,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:36,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:44:36,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:36,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:44:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:36,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:36,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:37,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 05:44:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:37,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:37,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:37,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 05:44:37,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:37,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 05:44:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:37,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:37,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:44:37,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:37,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 05:44:37,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:37,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 05:44:37,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:37,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 05:44:37,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:37,392 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2021-12-18 05:44:37,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:44:37,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909760018] [2021-12-18 05:44:37,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909760018] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 05:44:37,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186446611] [2021-12-18 05:44:37,392 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-18 05:44:37,393 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:44:37,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:44:37,408 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 05:44:37,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-18 05:44:44,544 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-12-18 05:44:44,544 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 05:44:44,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 2396 conjuncts, 48 conjunts are in the unsatisfiable core [2021-12-18 05:44:44,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:44:46,000 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 72 proven. 28 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-12-18 05:44:46,000 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 05:44:47,957 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2021-12-18 05:44:47,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186446611] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 05:44:47,957 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 05:44:47,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 14, 13] total 36 [2021-12-18 05:44:47,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478058863] [2021-12-18 05:44:47,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 05:44:47,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-12-18 05:44:47,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:44:47,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-12-18 05:44:47,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1149, Unknown=0, NotChecked=0, Total=1260 [2021-12-18 05:44:47,959 INFO L87 Difference]: Start difference. First operand 2215 states and 2995 transitions. Second operand has 36 states, 33 states have (on average 4.848484848484849) internal successors, (160), 31 states have internal predecessors, (160), 6 states have call successors, (54), 7 states have call predecessors, (54), 6 states have return successors, (37), 5 states have call predecessors, (37), 6 states have call successors, (37) [2021-12-18 05:44:57,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:44:59,797 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:45:08,043 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:45:10,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:45:11,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:45:11,453 INFO L93 Difference]: Finished difference Result 4936 states and 6781 transitions. [2021-12-18 05:45:11,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-12-18 05:45:11,454 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 33 states have (on average 4.848484848484849) internal successors, (160), 31 states have internal predecessors, (160), 6 states have call successors, (54), 7 states have call predecessors, (54), 6 states have return successors, (37), 5 states have call predecessors, (37), 6 states have call successors, (37) Word has length 213 [2021-12-18 05:45:11,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:45:11,474 INFO L225 Difference]: With dead ends: 4936 [2021-12-18 05:45:11,474 INFO L226 Difference]: Without dead ends: 2729 [2021-12-18 05:45:11,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 456 SyntacticMatches, 4 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 970 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=516, Invalid=4176, Unknown=0, NotChecked=0, Total=4692 [2021-12-18 05:45:11,482 INFO L933 BasicCegarLoop]: 688 mSDtfsCounter, 728 mSDsluCounter, 13825 mSDsCounter, 0 mSdLazyCounter, 5069 mSolverCounterSat, 507 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 14513 SdHoareTripleChecker+Invalid, 5580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 507 IncrementalHoareTripleChecker+Valid, 5069 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.6s IncrementalHoareTripleChecker+Time [2021-12-18 05:45:11,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [802 Valid, 14513 Invalid, 5580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [507 Valid, 5069 Invalid, 4 Unknown, 0 Unchecked, 20.6s Time] [2021-12-18 05:45:11,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2021-12-18 05:45:11,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 2225. [2021-12-18 05:45:11,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2225 states, 1643 states have (on average 1.310407790626902) internal successors, (2153), 1666 states have internal predecessors, (2153), 417 states have call successors, (417), 159 states have call predecessors, (417), 164 states have return successors, (435), 419 states have call predecessors, (435), 415 states have call successors, (435) [2021-12-18 05:45:11,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2225 states to 2225 states and 3005 transitions. [2021-12-18 05:45:11,607 INFO L78 Accepts]: Start accepts. Automaton has 2225 states and 3005 transitions. Word has length 213 [2021-12-18 05:45:11,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:45:11,607 INFO L470 AbstractCegarLoop]: Abstraction has 2225 states and 3005 transitions. [2021-12-18 05:45:11,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 33 states have (on average 4.848484848484849) internal successors, (160), 31 states have internal predecessors, (160), 6 states have call successors, (54), 7 states have call predecessors, (54), 6 states have return successors, (37), 5 states have call predecessors, (37), 6 states have call successors, (37) [2021-12-18 05:45:11,608 INFO L276 IsEmpty]: Start isEmpty. Operand 2225 states and 3005 transitions. [2021-12-18 05:45:11,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-12-18 05:45:11,612 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:45:11,612 INFO L514 BasicCegarLoop]: trace histogram [12, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:45:11,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-18 05:45:11,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:45:11,829 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:45:11,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:45:11,829 INFO L85 PathProgramCache]: Analyzing trace with hash -2065114343, now seen corresponding path program 3 times [2021-12-18 05:45:11,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:45:11,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126317779] [2021-12-18 05:45:11,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:45:11,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:45:12,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-18 05:45:12,165 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-18 05:45:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-18 05:45:12,509 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-18 05:45:12,509 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-18 05:45:12,510 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-18 05:45:12,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-18 05:45:12,514 INFO L732 BasicCegarLoop]: Path program histogram: [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:45:12,517 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-18 05:45:12,557 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-12-18 05:45:12,558 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-12-18 05:45:12,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 05:45:12 BoogieIcfgContainer [2021-12-18 05:45:12,700 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-18 05:45:12,701 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-18 05:45:12,701 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-18 05:45:12,701 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-18 05:45:12,702 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:39:30" (3/4) ... [2021-12-18 05:45:12,706 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-18 05:45:12,706 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-18 05:45:12,706 INFO L158 Benchmark]: Toolchain (without parser) took 355951.49ms. Allocated memory was 104.9MB in the beginning and 786.4MB in the end (delta: 681.6MB). Free memory was 68.3MB in the beginning and 274.0MB in the end (delta: -205.7MB). Peak memory consumption was 475.4MB. Max. memory is 16.1GB. [2021-12-18 05:45:12,706 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 104.9MB. Free memory is still 62.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-18 05:45:12,707 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1227.87ms. Allocated memory was 104.9MB in the beginning and 146.8MB in the end (delta: 41.9MB). Free memory was 68.1MB in the beginning and 92.9MB in the end (delta: -24.8MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. [2021-12-18 05:45:12,708 INFO L158 Benchmark]: Boogie Procedure Inliner took 125.42ms. Allocated memory is still 146.8MB. Free memory was 92.9MB in the beginning and 73.3MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-18 05:45:12,714 INFO L158 Benchmark]: Boogie Preprocessor took 161.12ms. Allocated memory was 146.8MB in the beginning and 218.1MB in the end (delta: 71.3MB). Free memory was 73.3MB in the beginning and 152.6MB in the end (delta: -79.3MB). Peak memory consumption was 34.4MB. Max. memory is 16.1GB. [2021-12-18 05:45:12,715 INFO L158 Benchmark]: RCFGBuilder took 11946.22ms. Allocated memory was 218.1MB in the beginning and 786.4MB in the end (delta: 568.3MB). Free memory was 152.6MB in the beginning and 562.7MB in the end (delta: -410.1MB). Peak memory consumption was 401.5MB. Max. memory is 16.1GB. [2021-12-18 05:45:12,715 INFO L158 Benchmark]: TraceAbstraction took 342476.90ms. Allocated memory is still 786.4MB. Free memory was 561.7MB in the beginning and 274.0MB in the end (delta: 287.7MB). Peak memory consumption was 288.7MB. Max. memory is 16.1GB. [2021-12-18 05:45:12,715 INFO L158 Benchmark]: Witness Printer took 4.80ms. Allocated memory is still 786.4MB. Free memory is still 274.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-18 05:45:12,716 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 104.9MB. Free memory is still 62.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1227.87ms. Allocated memory was 104.9MB in the beginning and 146.8MB in the end (delta: 41.9MB). Free memory was 68.1MB in the beginning and 92.9MB in the end (delta: -24.8MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 125.42ms. Allocated memory is still 146.8MB. Free memory was 92.9MB in the beginning and 73.3MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 161.12ms. Allocated memory was 146.8MB in the beginning and 218.1MB in the end (delta: 71.3MB). Free memory was 73.3MB in the beginning and 152.6MB in the end (delta: -79.3MB). Peak memory consumption was 34.4MB. Max. memory is 16.1GB. * RCFGBuilder took 11946.22ms. Allocated memory was 218.1MB in the beginning and 786.4MB in the end (delta: 568.3MB). Free memory was 152.6MB in the beginning and 562.7MB in the end (delta: -410.1MB). Peak memory consumption was 401.5MB. Max. memory is 16.1GB. * TraceAbstraction took 342476.90ms. Allocated memory is still 786.4MB. Free memory was 561.7MB in the beginning and 274.0MB in the end (delta: 287.7MB). Peak memory consumption was 288.7MB. Max. memory is 16.1GB. * Witness Printer took 4.80ms. Allocated memory is still 786.4MB. Free memory is still 274.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 7526]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 6952, overapproximation of bitwiseAnd at line 6045. Possible FailurePath: [L6261] int ldv_state_variable_3 ; [L6262] int LDV_IN_INTERRUPT = 1; [L6263] int ldv_state_variable_2 ; [L6264] struct atm_vcc *atmtcp_c_dev_ops_group0 ; [L6265] int ref_cnt ; [L6266] struct atm_vcc *atmtcp_v_dev_ops_group1 ; [L6267] struct atm_dev *atmtcp_v_dev_ops_group0 ; [L6268] int ldv_state_variable_1 ; [L6269] int ldv_state_variable_0 ; [L6942-L6944] static struct atmdev_ops atmtcp_v_dev_ops = {& atmtcp_v_dev_close, & atmtcp_v_open, & atmtcp_v_close, & atmtcp_v_ioctl, 0, 0, 0, & atmtcp_v_send, 0, 0, 0, 0, & atmtcp_v_proc, & __this_module}; [L6945-L6946] static struct atmdev_ops atmtcp_c_dev_ops = {0, 0, & atmtcp_c_close, 0, 0, 0, 0, & atmtcp_c_send, 0, 0, 0, 0, 0, 0}; [L6947-L7055] static struct atm_dev atmtcp_control_dev = {(struct atmdev_ops const *)(& atmtcp_c_dev_ops), 0, "atmtcp", 999, 0, 0, 0UL, {0, 0}, {0, 0}, {(unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0}, {(signed char)0, (signed char)0}, {{{0}, {0}, {0}, {0}, {0}}, {{0}, {0}, {0}, {0}, {0}}, {{0}, {0}, {0}, {0}, {0}}}, (char)0, 0, {0}, {{{{{0}}, 3735899821U, 4294967295U, (void *)-1, {0, {0, 0}, "atmtcp_control_dev.lock", 0, 0UL}}}}, 0, 0, {0, 0, {0, {0, 0}, 0, 0, 0, 0, {{0}}, {{{0L}, {0, 0}, 0, {0, {0, 0}, 0, 0, 0UL}}, {{0, 0}, 0UL, 0, 0UL, 0U, 0, 0, 0, {(char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0}, {0, {0, 0}, 0, 0, 0UL}}, 0, 0}, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0}, 0, 0, {{0}, {{{{{0}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}, 0, 0, {0, {0, 0}, 0, 0, 0UL}}, 0, 0, 0, 0, {{0}, (unsigned char)0, (unsigned char)0, (_Bool)0, (_Bool)0, (_Bool)0, (_Bool)0, (_Bool)0, (_Bool)0, (_Bool)0, {{{{{0}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}, {0U, {{{{{{0}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}}, 0, (_Bool)0, (_Bool)0, {{0, 0}, 0UL, 0, 0UL, 0U, 0, 0, 0, {(char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0}, {0, {0, 0}, 0, 0, 0UL}}, 0UL, {{0L}, {0, 0}, 0, {0, {0, 0}, 0, 0, 0UL}}, {{{{{{0}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}, 0, {0}, {0}, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0, 0, 0, 0, 0UL, 0UL, 0UL, 0UL, 0, 0, 0}, 0, 0, 0, 0, 0ULL, 0UL, 0, {0, 0}, 0, 0, {0, 0}, 0, 0, 0U, 0U, {{{{{0}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}, {0, {0, 0}, {{0}}}, 0, 0, 0, 0, (_Bool)0, (_Bool)0}, {0, 0}}; [L7212] static struct atm_ioctl atmtcp_ioctl_ops = {& __this_module, & atmtcp_ioctl, {0, 0}}; [L7228] int ldv_retval_0 ; [L7229] int ldv_retval_1 ; [L7565] int ldv_module_refcounter = 1; VAL [__this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7255] unsigned long ldvarg1 ; [L7256] struct socket *ldvarg0 ; [L7257] void *tmp ; [L7258] unsigned int ldvarg2 ; [L7259] loff_t *ldvarg7 ; [L7260] void *tmp___0 ; [L7261] void *ldvarg4 ; [L7262] void *tmp___1 ; [L7263] struct sk_buff *ldvarg3 ; [L7264] void *tmp___2 ; [L7265] unsigned int ldvarg5 ; [L7266] char *ldvarg6 ; [L7267] void *tmp___3 ; [L7268] struct sk_buff *ldvarg8 ; [L7269] void *tmp___4 ; [L7270] int tmp___5 ; [L7271] int tmp___6 ; [L7272] int tmp___7 ; [L7273] int tmp___8 ; [L7274] int tmp___9 ; VAL [__this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg1={36893488147419103236:0}, ldvarg5={36893488147419103235:0}, ref_cnt=0] [L7276] CALL, EXPR ldv_init_zalloc(48UL) VAL [\old(size)=48, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6215] void *p ; [L6216] void *tmp ; [L6218] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=48, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={18446744073709551618:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, size=48] [L6218] tmp = calloc(1UL, size) [L6219] p = tmp VAL [\old(size)=48, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={18446744073709551618:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={18446744073709551618:0}, ref_cnt=0, size=48, tmp={18446744073709551618:0}] [L6220] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6177] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cond=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6220] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=48, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={18446744073709551618:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={18446744073709551618:0}, ref_cnt=0, size=48, tmp={18446744073709551618:0}] [L6221] return (p); VAL [\old(size)=48, \result={18446744073709551618:0}, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={18446744073709551618:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={18446744073709551618:0}, ref_cnt=0, size=48, tmp={18446744073709551618:0}] [L7276] RET, EXPR ldv_init_zalloc(48UL) VAL [__this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_init_zalloc(48UL)={18446744073709551618:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg1={36893488147419103236:0}, ldvarg5={36893488147419103235:0}, ref_cnt=0] [L7276] tmp = ldv_init_zalloc(48UL) [L7277] ldvarg0 = (struct socket *)tmp VAL [__this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={18446744073709551618:0}, ldvarg1={36893488147419103236:0}, ldvarg5={36893488147419103235:0}, ref_cnt=0, tmp={18446744073709551618:0}] [L7278] CALL, EXPR ldv_init_zalloc(8UL) VAL [\old(size)=8, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6215] void *p ; [L6216] void *tmp ; [L6218] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=8, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={36893488147419103233:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, size=8] [L6218] tmp = calloc(1UL, size) [L6219] p = tmp VAL [\old(size)=8, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={36893488147419103233:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={36893488147419103233:0}, ref_cnt=0, size=8, tmp={36893488147419103233:0}] [L6220] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6177] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cond=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6220] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=8, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={36893488147419103233:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={36893488147419103233:0}, ref_cnt=0, size=8, tmp={36893488147419103233:0}] [L6221] return (p); VAL [\old(size)=8, \result={36893488147419103233:0}, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={36893488147419103233:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={36893488147419103233:0}, ref_cnt=0, size=8, tmp={36893488147419103233:0}] [L7278] RET, EXPR ldv_init_zalloc(8UL) VAL [__this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_init_zalloc(8UL)={36893488147419103233:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={18446744073709551618:0}, ldvarg1={36893488147419103236:0}, ldvarg5={36893488147419103235:0}, ref_cnt=0, tmp={18446744073709551618:0}] [L7278] tmp___0 = ldv_init_zalloc(8UL) [L7279] ldvarg7 = (loff_t *)tmp___0 VAL [__this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={18446744073709551618:0}, ldvarg1={36893488147419103236:0}, ldvarg5={36893488147419103235:0}, ldvarg7={36893488147419103233:0}, ref_cnt=0, tmp={18446744073709551618:0}, tmp___0={36893488147419103233:0}] [L7280] CALL, EXPR ldv_init_zalloc(1UL) VAL [\old(size)=1, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6215] void *p ; [L6216] void *tmp ; [L6218] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=1, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={18446744073709551619:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, size=1] [L6218] tmp = calloc(1UL, size) [L6219] p = tmp VAL [\old(size)=1, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={18446744073709551619:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={18446744073709551619:0}, ref_cnt=0, size=1, tmp={18446744073709551619:0}] [L6220] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6177] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cond=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6220] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=1, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={18446744073709551619:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={18446744073709551619:0}, ref_cnt=0, size=1, tmp={18446744073709551619:0}] [L6221] return (p); VAL [\old(size)=1, \result={18446744073709551619:0}, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={18446744073709551619:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={18446744073709551619:0}, ref_cnt=0, size=1, tmp={18446744073709551619:0}] [L7280] RET, EXPR ldv_init_zalloc(1UL) VAL [__this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_init_zalloc(1UL)={18446744073709551619:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={18446744073709551618:0}, ldvarg1={36893488147419103236:0}, ldvarg5={36893488147419103235:0}, ldvarg7={36893488147419103233:0}, ref_cnt=0, tmp={18446744073709551618:0}, tmp___0={36893488147419103233:0}] [L7280] tmp___1 = ldv_init_zalloc(1UL) [L7281] ldvarg4 = tmp___1 VAL [__this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={18446744073709551618:0}, ldvarg1={36893488147419103236:0}, ldvarg4={18446744073709551619:0}, ldvarg5={36893488147419103235:0}, ldvarg7={36893488147419103233:0}, ref_cnt=0, tmp={18446744073709551618:0}, tmp___0={36893488147419103233:0}, tmp___1={18446744073709551619:0}] [L7282] CALL, EXPR ldv_init_zalloc(232UL) VAL [\old(size)=232, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6215] void *p ; [L6216] void *tmp ; [L6218] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=232, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-18446744073709551617:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, size=232] [L6218] tmp = calloc(1UL, size) [L6219] p = tmp VAL [\old(size)=232, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-18446744073709551617:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-18446744073709551617:0}, ref_cnt=0, size=232, tmp={-18446744073709551617:0}] [L6220] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6177] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cond=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6220] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=232, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-18446744073709551617:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-18446744073709551617:0}, ref_cnt=0, size=232, tmp={-18446744073709551617:0}] [L6221] return (p); VAL [\old(size)=232, \result={-18446744073709551617:0}, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-18446744073709551617:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-18446744073709551617:0}, ref_cnt=0, size=232, tmp={-18446744073709551617:0}] [L7282] RET, EXPR ldv_init_zalloc(232UL) VAL [__this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_init_zalloc(232UL)={-18446744073709551617:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={18446744073709551618:0}, ldvarg1={36893488147419103236:0}, ldvarg4={18446744073709551619:0}, ldvarg5={36893488147419103235:0}, ldvarg7={36893488147419103233:0}, ref_cnt=0, tmp={18446744073709551618:0}, tmp___0={36893488147419103233:0}, tmp___1={18446744073709551619:0}] [L7282] tmp___2 = ldv_init_zalloc(232UL) [L7283] ldvarg3 = (struct sk_buff *)tmp___2 VAL [__this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={18446744073709551618:0}, ldvarg1={36893488147419103236:0}, ldvarg3={-18446744073709551617:0}, ldvarg4={18446744073709551619:0}, ldvarg5={36893488147419103235:0}, ldvarg7={36893488147419103233:0}, ref_cnt=0, tmp={18446744073709551618:0}, tmp___0={36893488147419103233:0}, tmp___1={18446744073709551619:0}, tmp___2={-18446744073709551617:0}] [L7284] CALL, EXPR ldv_init_zalloc(1UL) VAL [\old(size)=1, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6215] void *p ; [L6216] void *tmp ; [L6218] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=1, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-36893488147419103233:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, size=1] [L6218] tmp = calloc(1UL, size) [L6219] p = tmp VAL [\old(size)=1, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-36893488147419103233:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-36893488147419103233:0}, ref_cnt=0, size=1, tmp={-36893488147419103233:0}] [L6220] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6177] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cond=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6220] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=1, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-36893488147419103233:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-36893488147419103233:0}, ref_cnt=0, size=1, tmp={-36893488147419103233:0}] [L6221] return (p); VAL [\old(size)=1, \result={-36893488147419103233:0}, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-36893488147419103233:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-36893488147419103233:0}, ref_cnt=0, size=1, tmp={-36893488147419103233:0}] [L7284] RET, EXPR ldv_init_zalloc(1UL) VAL [__this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_init_zalloc(1UL)={-36893488147419103233:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={18446744073709551618:0}, ldvarg1={36893488147419103236:0}, ldvarg3={-18446744073709551617:0}, ldvarg4={18446744073709551619:0}, ldvarg5={36893488147419103235:0}, ldvarg7={36893488147419103233:0}, ref_cnt=0, tmp={18446744073709551618:0}, tmp___0={36893488147419103233:0}, tmp___1={18446744073709551619:0}, tmp___2={-18446744073709551617:0}] [L7284] tmp___3 = ldv_init_zalloc(1UL) [L7285] ldvarg6 = (char *)tmp___3 VAL [__this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={18446744073709551618:0}, ldvarg1={36893488147419103236:0}, ldvarg3={-18446744073709551617:0}, ldvarg4={18446744073709551619:0}, ldvarg5={36893488147419103235:0}, ldvarg6={-36893488147419103233:0}, ldvarg7={36893488147419103233:0}, ref_cnt=0, tmp={18446744073709551618:0}, tmp___0={36893488147419103233:0}, tmp___1={18446744073709551619:0}, tmp___2={-18446744073709551617:0}, tmp___3={-36893488147419103233:0}] [L7286] CALL, EXPR ldv_init_zalloc(232UL) VAL [\old(size)=232, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6215] void *p ; [L6216] void *tmp ; [L6218] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=232, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={18446744073709551617:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, size=232] [L6218] tmp = calloc(1UL, size) [L6219] p = tmp VAL [\old(size)=232, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={18446744073709551617:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={18446744073709551617:0}, ref_cnt=0, size=232, tmp={18446744073709551617:0}] [L6220] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6177] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cond=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6220] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=232, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={18446744073709551617:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={18446744073709551617:0}, ref_cnt=0, size=232, tmp={18446744073709551617:0}] [L6221] return (p); VAL [\old(size)=232, \result={18446744073709551617:0}, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={18446744073709551617:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={18446744073709551617:0}, ref_cnt=0, size=232, tmp={18446744073709551617:0}] [L7286] RET, EXPR ldv_init_zalloc(232UL) VAL [__this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_init_zalloc(232UL)={18446744073709551617:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={18446744073709551618:0}, ldvarg1={36893488147419103236:0}, ldvarg3={-18446744073709551617:0}, ldvarg4={18446744073709551619:0}, ldvarg5={36893488147419103235:0}, ldvarg6={-36893488147419103233:0}, ldvarg7={36893488147419103233:0}, ref_cnt=0, tmp={18446744073709551618:0}, tmp___0={36893488147419103233:0}, tmp___1={18446744073709551619:0}, tmp___2={-18446744073709551617:0}, tmp___3={-36893488147419103233:0}] [L7286] tmp___4 = ldv_init_zalloc(232UL) [L7287] ldvarg8 = (struct sk_buff *)tmp___4 [L7288] FCALL ldv_initialize() [L7289] CALL ldv_memset((void *)(& ldvarg1), 0, 8UL) VAL [\old(c)=0, \old(n)=8, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, s={36893488147419103236:0}] [L6226] void *tmp ; VAL [\old(c)=0, \old(n)=8, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, n=8, ref_cnt=0, s={36893488147419103236:0}, s={36893488147419103236:0}] [L6228] EXPR, FCALL memset(s, c, n) VAL [\old(c)=0, \old(n)=8, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, memset(s, c, n)={36893488147419103236:0}, n=8, ref_cnt=0, s={36893488147419103236:0}, s={36893488147419103236:0}] [L6228] tmp = memset(s, c, n) [L6229] return (tmp); VAL [\old(c)=0, \old(n)=8, \result={36893488147419103236:0}, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, n=8, ref_cnt=0, s={36893488147419103236:0}, s={36893488147419103236:0}, tmp={36893488147419103236:0}] [L7289] RET ldv_memset((void *)(& ldvarg1), 0, 8UL) VAL [__this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_memset((void *)(& ldvarg1), 0, 8UL)={36893488147419103236:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={18446744073709551618:0}, ldvarg1={36893488147419103236:0}, ldvarg3={-18446744073709551617:0}, ldvarg4={18446744073709551619:0}, ldvarg5={36893488147419103235:0}, ldvarg6={-36893488147419103233:0}, ldvarg7={36893488147419103233:0}, ldvarg8={18446744073709551617:0}, ref_cnt=0, tmp={18446744073709551618:0}, tmp___0={36893488147419103233:0}, tmp___1={18446744073709551619:0}, tmp___2={-18446744073709551617:0}, tmp___3={-36893488147419103233:0}, tmp___4={18446744073709551617:0}] [L7290] ldvarg2 = __VERIFIER_nondet_uint () [L7291] CALL ldv_memset((void *)(& ldvarg5), 0, 4UL) VAL [\old(c)=0, \old(n)=4, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, s={36893488147419103235:0}] [L6226] void *tmp ; VAL [\old(c)=0, \old(n)=4, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, n=4, ref_cnt=0, s={36893488147419103235:0}, s={36893488147419103235:0}] [L6228] EXPR, FCALL memset(s, c, n) VAL [\old(c)=0, \old(n)=4, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, memset(s, c, n)={36893488147419103235:0}, n=4, ref_cnt=0, s={36893488147419103235:0}, s={36893488147419103235:0}] [L6228] tmp = memset(s, c, n) [L6229] return (tmp); VAL [\old(c)=0, \old(n)=4, \result={36893488147419103235:0}, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, n=4, ref_cnt=0, s={36893488147419103235:0}, s={36893488147419103235:0}, tmp={36893488147419103235:0}] [L7291] RET ldv_memset((void *)(& ldvarg5), 0, 4UL) VAL [__this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_memset((void *)(& ldvarg5), 0, 4UL)={36893488147419103235:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={18446744073709551618:0}, ldvarg1={36893488147419103236:0}, ldvarg2=24975, ldvarg3={-18446744073709551617:0}, ldvarg4={18446744073709551619:0}, ldvarg5={36893488147419103235:0}, ldvarg6={-36893488147419103233:0}, ldvarg7={36893488147419103233:0}, ldvarg8={18446744073709551617:0}, ref_cnt=0, tmp={18446744073709551618:0}, tmp___0={36893488147419103233:0}, tmp___1={18446744073709551619:0}, tmp___2={-18446744073709551617:0}, tmp___3={-36893488147419103233:0}, tmp___4={18446744073709551617:0}] [L7292] ldv_state_variable_1 = 0 [L7293] ref_cnt = 0 [L7294] ldv_state_variable_0 = 1 [L7295] ldv_state_variable_3 = 0 [L7296] ldv_state_variable_2 = 0 VAL [__this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={18446744073709551618:0}, ldvarg1={36893488147419103236:0}, ldvarg2=24975, ldvarg3={-18446744073709551617:0}, ldvarg4={18446744073709551619:0}, ldvarg5={36893488147419103235:0}, ldvarg6={-36893488147419103233:0}, ldvarg7={36893488147419103233:0}, ldvarg8={18446744073709551617:0}, ref_cnt=0, tmp={18446744073709551618:0}, tmp___0={36893488147419103233:0}, tmp___1={18446744073709551619:0}, tmp___2={-18446744073709551617:0}, tmp___3={-36893488147419103233:0}, tmp___4={18446744073709551617:0}] [L7298] tmp___5 = __VERIFIER_nondet_int() [L7300] case 0: [L7318] case 1: VAL [__this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={18446744073709551618:0}, ldvarg1={36893488147419103236:0}, ldvarg2=24975, ldvarg3={-18446744073709551617:0}, ldvarg4={18446744073709551619:0}, ldvarg5={36893488147419103235:0}, ldvarg6={-36893488147419103233:0}, ldvarg7={36893488147419103233:0}, ldvarg8={18446744073709551617:0}, ref_cnt=0, tmp={18446744073709551618:0}, tmp___0={36893488147419103233:0}, tmp___1={18446744073709551619:0}, tmp___2={-18446744073709551617:0}, tmp___3={-36893488147419103233:0}, tmp___4={18446744073709551617:0}, tmp___5=1] [L7319] COND TRUE ldv_state_variable_0 != 0 [L7320] tmp___7 = __VERIFIER_nondet_int() [L7322] case 0: [L7330] case 1: VAL [__this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={18446744073709551618:0}, ldvarg1={36893488147419103236:0}, ldvarg2=24975, ldvarg3={-18446744073709551617:0}, ldvarg4={18446744073709551619:0}, ldvarg5={36893488147419103235:0}, ldvarg6={-36893488147419103233:0}, ldvarg7={36893488147419103233:0}, ldvarg8={18446744073709551617:0}, ref_cnt=0, tmp={18446744073709551618:0}, tmp___0={36893488147419103233:0}, tmp___1={18446744073709551619:0}, tmp___2={-18446744073709551617:0}, tmp___3={-36893488147419103233:0}, tmp___4={18446744073709551617:0}, tmp___5=1, tmp___7=1] [L7331] COND TRUE ldv_state_variable_0 == 1 [L7332] CALL, EXPR atmtcp_init() [L7216] FCALL register_atm_ioctl(& atmtcp_ioctl_ops) [L7217] return (0); VAL [\result=0, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7332] RET, EXPR atmtcp_init() [L7332] ldv_retval_0 = atmtcp_init() [L7333] COND TRUE ldv_retval_0 == 0 [L7334] ldv_state_variable_0 = 3 [L7335] ldv_state_variable_1 = 1 VAL [__this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={18446744073709551618:0}, ldvarg1={36893488147419103236:0}, ldvarg2=24975, ldvarg3={-18446744073709551617:0}, ldvarg4={18446744073709551619:0}, ldvarg5={36893488147419103235:0}, ldvarg6={-36893488147419103233:0}, ldvarg7={36893488147419103233:0}, ldvarg8={18446744073709551617:0}, ref_cnt=0, tmp={18446744073709551618:0}, tmp___0={36893488147419103233:0}, tmp___1={18446744073709551619:0}, tmp___2={-18446744073709551617:0}, tmp___3={-36893488147419103233:0}, tmp___4={18446744073709551617:0}, tmp___5=1, tmp___7=1] [L7338] COND FALSE !(ldv_retval_0 != 0) VAL [__this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={18446744073709551618:0}, ldvarg1={36893488147419103236:0}, ldvarg2=24975, ldvarg3={-18446744073709551617:0}, ldvarg4={18446744073709551619:0}, ldvarg5={36893488147419103235:0}, ldvarg6={-36893488147419103233:0}, ldvarg7={36893488147419103233:0}, ldvarg8={18446744073709551617:0}, ref_cnt=0, tmp={18446744073709551618:0}, tmp___0={36893488147419103233:0}, tmp___1={18446744073709551619:0}, tmp___2={-18446744073709551617:0}, tmp___3={-36893488147419103233:0}, tmp___4={18446744073709551617:0}, tmp___5=1, tmp___7=1] [L7298] tmp___5 = __VERIFIER_nondet_int() [L7300] case 0: VAL [__this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={18446744073709551618:0}, ldvarg1={36893488147419103236:0}, ldvarg2=24975, ldvarg3={-18446744073709551617:0}, ldvarg4={18446744073709551619:0}, ldvarg5={36893488147419103235:0}, ldvarg6={-36893488147419103233:0}, ldvarg7={36893488147419103233:0}, ldvarg8={18446744073709551617:0}, ref_cnt=0, tmp={18446744073709551618:0}, tmp___0={36893488147419103233:0}, tmp___1={18446744073709551619:0}, tmp___2={-18446744073709551617:0}, tmp___3={-36893488147419103233:0}, tmp___4={18446744073709551617:0}, tmp___5=0, tmp___7=1] [L7301] COND TRUE ldv_state_variable_1 != 0 [L7302] tmp___6 = __VERIFIER_nondet_int() [L7304] case 0: VAL [__this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={18446744073709551618:0}, ldvarg1={36893488147419103236:0}, ldvarg2=24975, ldvarg3={-18446744073709551617:0}, ldvarg4={18446744073709551619:0}, ldvarg5={36893488147419103235:0}, ldvarg6={-36893488147419103233:0}, ldvarg7={36893488147419103233:0}, ldvarg8={18446744073709551617:0}, ref_cnt=0, tmp={18446744073709551618:0}, tmp___0={36893488147419103233:0}, tmp___1={18446744073709551619:0}, tmp___2={-18446744073709551617:0}, tmp___3={-36893488147419103233:0}, tmp___4={18446744073709551617:0}, tmp___5=0, tmp___6=0, tmp___7=1] [L7305] COND TRUE ldv_state_variable_1 == 1 [L7306] EXPR \read(ldvarg1) [L7306] CALL atmtcp_ioctl(ldvarg0, ldvarg2, ldvarg1) [L7169] int err ; [L7170] struct atm_vcc *vcc ; [L7171] struct atm_vcc *tmp ; [L7172] bool tmp___0 ; [L7173] int tmp___1 ; [L7175] err = 0 [L7176] CALL, EXPR ATM_SD(sock) [L6342] struct atm_vcc *tmp ; [L6344] EXPR sock->sk VAL [__this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, sock={18446744073709551618:0}, sock={18446744073709551618:0}, sock->sk={36893488147419103237:36893488147419103238}] [L6344] CALL, EXPR atm_sk(sock->sk) VAL [__this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, sk={36893488147419103237:36893488147419103238}] [L6337] return ((struct atm_vcc *)sk); VAL [\result={36893488147419103237:36893488147419103238}, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, sk={36893488147419103237:36893488147419103238}, sk={36893488147419103237:36893488147419103238}] [L6344] RET, EXPR atm_sk(sock->sk) VAL [__this_module={-19:20}, atm_sk(sock->sk)={36893488147419103237:36893488147419103238}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, sock={18446744073709551618:0}, sock={18446744073709551618:0}, sock->sk={36893488147419103237:36893488147419103238}] [L6344] tmp = atm_sk(sock->sk) [L6345] return (tmp); VAL [\result={36893488147419103237:36893488147419103238}, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, sock={18446744073709551618:0}, sock={18446744073709551618:0}, tmp={36893488147419103237:36893488147419103238}] [L7176] RET, EXPR ATM_SD(sock) [L7176] tmp = ATM_SD(sock) [L7177] vcc = tmp VAL [\old(arg)=0, \old(cmd)=24975, __this_module={-19:20}, arg=0, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cmd=24975, err=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, sock={18446744073709551618:0}, sock={18446744073709551618:0}, tmp={36893488147419103237:36893488147419103238}, vcc={36893488147419103237:36893488147419103238}] [L7178] COND FALSE !((cmd != 24960U && cmd != 24974U) && cmd != 24975U) [L7182] CALL, EXPR capable(12) [L7680] return __VERIFIER_nondet_bool(); [L7182] RET, EXPR capable(12) [L7182] tmp___0 = capable(12) [L7183] COND TRUE \read(tmp___0) [L7184] tmp___1 = 0 VAL [\old(arg)=0, \old(cmd)=24975, __this_module={-19:20}, arg=0, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cmd=24975, err=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, sock={18446744073709551618:0}, sock={18446744073709551618:0}, tmp={36893488147419103237:36893488147419103238}, tmp___0=1, tmp___1=0, vcc={36893488147419103237:36893488147419103238}] [L7188] COND FALSE !(\read(tmp___1)) [L7193] case 24960U: [L7201] case 24974U: [L7204] case 24975U: [L7205] CALL atmtcp_remove_persistent((int )arg) [L7138] struct atm_dev *dev ; [L7139] struct atmtcp_dev_data *dev_data ; VAL [\old(itf)=0, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, itf=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7141] CALL, EXPR atm_dev_lookup(itf) VAL [\old(arg0)=0, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7669] CALL, EXPR ldv_malloc(sizeof(struct atm_dev)) VAL [\old(size)=1598, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6181] void *p ; [L6182] void *tmp ; [L6183] int tmp___0 ; [L6185] tmp___0 = __VERIFIER_nondet_int() [L6186] COND FALSE !(tmp___0 != 0) [L6189] tmp = malloc(size) [L6190] p = tmp VAL [\old(size)=1598, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-18446744073709551615:0}, ref_cnt=0, size=1598, tmp={-18446744073709551615:0}, tmp___0=0] [L6191] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6177] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cond=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6191] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=1598, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-18446744073709551615:0}, ref_cnt=0, size=1598, tmp={-18446744073709551615:0}, tmp___0=0] [L6192] return (p); VAL [\old(size)=1598, \result={-18446744073709551615:0}, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-18446744073709551615:0}, ref_cnt=0, size=1598, tmp={-18446744073709551615:0}, tmp___0=0] [L7669] RET, EXPR ldv_malloc(sizeof(struct atm_dev)) VAL [\old(arg0)=0, __this_module={-19:20}, arg0=0, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct atm_dev))={-18446744073709551615:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7669] return ldv_malloc(sizeof(struct atm_dev)); [L7141] RET, EXPR atm_dev_lookup(itf) VAL [\old(itf)=0, __this_module={-19:20}, atm_dev_lookup(itf)={-18446744073709551615:0}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, itf=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7141] dev = atm_dev_lookup(itf) [L7142] COND FALSE !((unsigned long )dev == (unsigned long )((struct atm_dev *)0)) [L7146] EXPR dev->ops VAL [\old(itf)=0, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev={-18446744073709551615:0}, dev->ops={19:-3}, itf=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7146] COND TRUE (unsigned long )dev->ops != (unsigned long )((struct atmdev_ops const *)(& atmtcp_v_dev_ops)) [L7147] CALL atm_dev_put(dev) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6377] int tmp ; [L6378] long tmp___0 ; [L6379] int tmp___1 ; [L6381] CALL, EXPR atomic_dec_and_test(& dev->refcnt) [L6126] char c ; [L6130] return ((int )((signed char )c) != 0); VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, \result=1, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=36893488147419103240, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, v={-18446744073709551615:157}, v={-18446744073709551615:157}] [L6381] RET, EXPR atomic_dec_and_test(& dev->refcnt) [L6381] tmp___1 = atomic_dec_and_test(& dev->refcnt) [L6382] COND TRUE tmp___1 != 0 [L6383] CALL, EXPR constant_test_bit(0L, (unsigned long const volatile *)(& dev->flags)) [L6045] EXPR addr + (unsigned long )(nr >> 6) [L6045] return ((int )((unsigned long )*(addr + (unsigned long )(nr >> 6)) >> ((int )nr & 63)) & 1); [L6383] RET, EXPR constant_test_bit(0L, (unsigned long const volatile *)(& dev->flags)) [L6383] tmp = constant_test_bit(0L, (unsigned long const volatile *)(& dev->flags)) [L6384] CALL, EXPR ldv__builtin_expect(tmp == 0, 0L) VAL [\old(c)=0, \old(exp)=0, \old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6258] return (exp); VAL [\old(c)=0, \old(exp)=0, \old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, \result=0, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=0, exp=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6384] RET, EXPR ldv__builtin_expect(tmp == 0, 0L) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev={-18446744073709551615:0}, dev={-18446744073709551615:0}, ldv__builtin_expect(tmp == 0, 0L)=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, tmp=1, tmp___1=1] [L6384] tmp___0 = ldv__builtin_expect(tmp == 0, 0L) [L6385] COND FALSE !(tmp___0 != 0L) [L6392] EXPR dev->ops [L6392] EXPR (dev->ops)->dev_close VAL [(dev->ops)->dev_close={-1:7}, \old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev={-18446744073709551615:0}, dev={-18446744073709551615:0}, dev->ops={19:-3}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, tmp=1, tmp___0=0, tmp___1=1] [L6392] COND TRUE (unsigned long )(dev->ops)->dev_close != (unsigned long )((void (* )(struct atm_dev * ))0) [L6393] EXPR dev->ops [L6393] EXPR (dev->ops)->dev_close [L6393] CALL (*((dev->ops)->dev_close))(dev) [L6824] struct atm_dev *atmtcp_dev ; [L6825] struct atmtcp_dev_data *dev_data ; [L6827] EXPR vcc->dev_data [L6827] atmtcp_dev = (struct atm_dev *)vcc->dev_data [L6828] EXPR atmtcp_dev->dev_data [L6828] dev_data = (struct atmtcp_dev_data *)atmtcp_dev->dev_data [L6829] dev_data->vcc = (struct atm_vcc *)0 [L6830] EXPR dev_data->persist VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_dev={36893488147419103241:-5}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev_data={36893488147419103241:-12}, dev_data->persist=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, vcc={-18446744073709551615:0}, vcc={-18446744073709551615:0}] [L6830] COND FALSE !(dev_data->persist != 0) [L6834] atmtcp_dev->dev_data = (void *)0 VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_dev={36893488147419103241:-5}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev_data={36893488147419103241:-12}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, vcc={-18446744073709551615:0}, vcc={-18446744073709551615:0}] [L6835] CALL kfree((void const *)dev_data) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, p={36893488147419103241:-12}, ref_cnt=0] [L6835] RET kfree((void const *)dev_data) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_dev={36893488147419103241:-5}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev_data={36893488147419103241:-12}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, vcc={-18446744073709551615:0}, vcc={-18446744073709551615:0}] [L6836] CALL ldv_atm_dev_deregister_5(atmtcp_dev) [L7476] FCALL atm_dev_deregister(ldv_func_arg1) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, ldv_func_arg1={36893488147419103241:-5}, ldv_func_arg1={36893488147419103241:-5}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7477] ldv_state_variable_3 = 0 VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, ldv_func_arg1={36893488147419103241:-5}, ldv_func_arg1={36893488147419103241:-5}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6836] RET ldv_atm_dev_deregister_5(atmtcp_dev) [L6837] vcc->dev_data = (void *)0 [L6838] CALL ldv_module_put_6(& __this_module) [L7484] CALL ldv_module_put(ldv_func_arg1) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, module={-19:20}, ref_cnt=0] [L7596] COND TRUE (unsigned long )module != (unsigned long )((struct module *)0) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, module={-19:20}, module={-19:20}, ref_cnt=0] [L7597] COND TRUE ldv_module_refcounter <= 1 VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, module={-19:20}, module={-19:20}, ref_cnt=0] [L7598] CALL ldv_error() VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7526] reach_error() VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={-19:20}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 629 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 342.2s, OverallIterations: 21, TraceHistogramMax: 12, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 292.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 81 mSolverCounterUnknown, 17778 SdHoareTripleChecker+Valid, 274.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16824 mSDsluCounter, 114381 SdHoareTripleChecker+Invalid, 264.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 98946 mSDsCounter, 10362 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37619 IncrementalHoareTripleChecker+Invalid, 48062 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10362 mSolverCounterUnsat, 15435 mSDtfsCounter, 37619 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4513 GetRequests, 4040 SyntacticMatches, 33 SemanticMatches, 440 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3288 ImplicationChecksByTransitivity, 28.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2337occurred in iteration=4, InterpolantAutomatonStates: 277, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 20 MinimizatonAttempts, 11695 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 11.0s SatisfiabilityAnalysisTime, 31.8s InterpolantComputationTime, 5543 NumberOfCodeBlocks, 5543 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 6760 ConstructedInterpolants, 0 QuantifiedInterpolants, 13612 SizeOfPredicates, 19 NumberOfNonLiveVariables, 18542 ConjunctsInSsa, 195 ConjunctsInUnsatCore, 35 InterpolantComputations, 13 PerfectInterpolantSequences, 8505/9159 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-18 05:45:12,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 e6823a3e354b35bf05bec5e81d72dc7306859bf56793457624e681693cebdf0b --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 05:45:14,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 05:45:14,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 05:45:14,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 05:45:14,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 05:45:14,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 05:45:14,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 05:45:14,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 05:45:14,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 05:45:14,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 05:45:14,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 05:45:14,818 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 05:45:14,819 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 05:45:14,821 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 05:45:14,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 05:45:14,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 05:45:14,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 05:45:14,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 05:45:14,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 05:45:14,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 05:45:14,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 05:45:14,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 05:45:14,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 05:45:14,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 05:45:14,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 05:45:14,844 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 05:45:14,844 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 05:45:14,844 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 05:45:14,845 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 05:45:14,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 05:45:14,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 05:45:14,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 05:45:14,848 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 05:45:14,848 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 05:45:14,849 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 05:45:14,849 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 05:45:14,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 05:45:14,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 05:45:14,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 05:45:14,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 05:45:14,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 05:45:14,853 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-18 05:45:14,881 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 05:45:14,881 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 05:45:14,882 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 05:45:14,882 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 05:45:14,883 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 05:45:14,883 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 05:45:14,884 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 05:45:14,884 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 05:45:14,884 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 05:45:14,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 05:45:14,885 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 05:45:14,885 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 05:45:14,885 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 05:45:14,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 05:45:14,886 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-18 05:45:14,886 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-18 05:45:14,886 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-18 05:45:14,886 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 05:45:14,886 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 05:45:14,886 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 05:45:14,886 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 05:45:14,887 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 05:45:14,887 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 05:45:14,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 05:45:14,897 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 05:45:14,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 05:45:14,898 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 05:45:14,898 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-18 05:45:14,898 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-18 05:45:14,898 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 05:45:14,898 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 05:45:14,898 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 05:45:14,899 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 05:45:14,899 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-18 05:45:14,899 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6823a3e354b35bf05bec5e81d72dc7306859bf56793457624e681693cebdf0b [2021-12-18 05:45:15,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 05:45:15,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 05:45:15,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 05:45:15,202 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 05:45:15,203 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 05:45:15,204 INFO L432 ainManager$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-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2021-12-18 05:45:15,251 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/003fd58b0/36a0037bdaae47098c7fb55a0728e260/FLAGe61269d1b [2021-12-18 05:45:15,790 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 05:45:15,790 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2021-12-18 05:45:15,823 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/003fd58b0/36a0037bdaae47098c7fb55a0728e260/FLAGe61269d1b [2021-12-18 05:45:15,995 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/003fd58b0/36a0037bdaae47098c7fb55a0728e260 [2021-12-18 05:45:15,997 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 05:45:15,999 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 05:45:16,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 05:45:16,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 05:45:16,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 05:45:16,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 05:45:15" (1/1) ... [2021-12-18 05:45:16,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43c414a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:45:16, skipping insertion in model container [2021-12-18 05:45:16,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 05:45:15" (1/1) ... [2021-12-18 05:45:16,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 05:45:16,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 05:45:16,987 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-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i[225078,225091] [2021-12-18 05:45:17,025 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-18 05:45:17,037 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 05:45:17,094 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-18 05:45:17,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 05:45:17,395 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-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i[225078,225091] [2021-12-18 05:45:17,404 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-18 05:45:17,411 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 05:45:17,442 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 05:45:17,710 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-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i[225078,225091] [2021-12-18 05:45:17,715 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-18 05:45:17,716 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 05:45:17,774 INFO L208 MainTranslator]: Completed translation [2021-12-18 05:45:17,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:45:17 WrapperNode [2021-12-18 05:45:17,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 05:45:17,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 05:45:17,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 05:45:17,776 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 05:45:17,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:45:17" (1/1) ... [2021-12-18 05:45:17,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:45:17" (1/1) ... [2021-12-18 05:45:17,933 INFO L137 Inliner]: procedures = 155, calls = 1103, calls flagged for inlining = 57, calls inlined = 55, statements flattened = 2401 [2021-12-18 05:45:17,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 05:45:17,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 05:45:17,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 05:45:17,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 05:45:17,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:45:17" (1/1) ... [2021-12-18 05:45:17,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:45:17" (1/1) ... [2021-12-18 05:45:17,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:45:17" (1/1) ... [2021-12-18 05:45:17,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:45:17" (1/1) ... [2021-12-18 05:45:18,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:45:17" (1/1) ... [2021-12-18 05:45:18,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:45:17" (1/1) ... [2021-12-18 05:45:18,065 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:45:17" (1/1) ... [2021-12-18 05:45:18,088 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 05:45:18,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 05:45:18,088 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 05:45:18,088 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 05:45:18,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:45:17" (1/1) ... [2021-12-18 05:45:18,094 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 05:45:18,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:45:18,110 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-18 05:45:18,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-18 05:45:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure atm_sk [2021-12-18 05:45:18,178 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_sk [2021-12-18 05:45:18,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-18 05:45:18,179 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2021-12-18 05:45:18,179 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2021-12-18 05:45:18,179 INFO L130 BoogieDeclarations]: Found specification of procedure change_bit [2021-12-18 05:45:18,179 INFO L138 BoogieDeclarations]: Found implementation of procedure change_bit [2021-12-18 05:45:18,179 INFO L130 BoogieDeclarations]: Found specification of procedure atm_alloc_charge [2021-12-18 05:45:18,180 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_alloc_charge [2021-12-18 05:45:18,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-18 05:45:18,180 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-18 05:45:18,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-18 05:45:18,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 05:45:18,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-12-18 05:45:18,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 05:45:18,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 05:45:18,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 05:45:18,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 05:45:18,181 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 05:45:18,181 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-12-18 05:45:18,182 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-12-18 05:45:18,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 05:45:18,182 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 05:45:18,182 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-18 05:45:18,182 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-18 05:45:18,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 05:45:18,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 05:45:18,183 INFO L130 BoogieDeclarations]: Found specification of procedure sk_sleep [2021-12-18 05:45:18,184 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_sleep [2021-12-18 05:45:18,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-12-18 05:45:18,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-12-18 05:45:18,184 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_ioctl [2021-12-18 05:45:18,184 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_ioctl [2021-12-18 05:45:18,184 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 05:45:18,185 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 05:45:18,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 05:45:18,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 05:45:18,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-12-18 05:45:18,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-12-18 05:45:18,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-12-18 05:45:18,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-12-18 05:45:18,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 05:45:18,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 05:45:18,186 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-18 05:45:18,186 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-18 05:45:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 05:45:18,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 05:45:18,188 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_dev_close [2021-12-18 05:45:18,188 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_dev_close [2021-12-18 05:45:18,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-18 05:45:18,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-18 05:45:18,189 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 05:45:18,189 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 05:45:18,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 05:45:18,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-18 05:45:18,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-18 05:45:18,190 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2021-12-18 05:45:18,190 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2021-12-18 05:45:18,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 05:45:18,190 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-18 05:45:18,191 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-18 05:45:18,191 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_send [2021-12-18 05:45:18,191 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_send [2021-12-18 05:45:18,191 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-18 05:45:18,191 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-18 05:45:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 05:45:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 05:45:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 05:45:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-12-18 05:45:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-12-18 05:45:18,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-12-18 05:45:18,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 05:45:18,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-18 05:45:18,193 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_create [2021-12-18 05:45:18,193 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_create [2021-12-18 05:45:18,193 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_close [2021-12-18 05:45:18,194 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_close [2021-12-18 05:45:18,194 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_deregister [2021-12-18 05:45:18,194 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_deregister [2021-12-18 05:45:18,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-18 05:45:18,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-18 05:45:18,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-12-18 05:45:18,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 05:45:18,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-18 05:45:18,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 05:45:18,196 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_close [2021-12-18 05:45:18,196 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_close [2021-12-18 05:45:18,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-18 05:45:18,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-18 05:45:18,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-12-18 05:45:18,197 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-18 05:45:18,197 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-18 05:45:18,197 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_put [2021-12-18 05:45:18,198 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_put [2021-12-18 05:45:18,198 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-18 05:45:18,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-18 05:45:18,198 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_lookup [2021-12-18 05:45:18,198 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_lookup [2021-12-18 05:45:18,198 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-18 05:45:18,199 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-18 05:45:18,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-12-18 05:45:18,199 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_send [2021-12-18 05:45:18,199 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_send [2021-12-18 05:45:18,199 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-18 05:45:18,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-18 05:45:18,200 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_send_control [2021-12-18 05:45:18,200 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_send_control [2021-12-18 05:45:18,201 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock [2021-12-18 05:45:18,201 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock [2021-12-18 05:45:18,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 05:45:18,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 05:45:18,204 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock [2021-12-18 05:45:18,205 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock [2021-12-18 05:45:18,653 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 05:45:18,656 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 05:45:22,579 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 05:45:44,249 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 05:45:44,273 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 05:45:44,275 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-18 05:45:44,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:45:44 BoogieIcfgContainer [2021-12-18 05:45:44,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 05:45:44,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 05:45:44,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 05:45:44,283 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 05:45:44,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 05:45:15" (1/3) ... [2021-12-18 05:45:44,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8c5d78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 05:45:44, skipping insertion in model container [2021-12-18 05:45:44,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:45:17" (2/3) ... [2021-12-18 05:45:44,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8c5d78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 05:45:44, skipping insertion in model container [2021-12-18 05:45:44,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:45:44" (3/3) ... [2021-12-18 05:45:44,286 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2021-12-18 05:45:44,291 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 05:45:44,291 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 05:45:44,352 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 05:45:44,364 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-18 05:45:44,365 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 05:45:44,389 INFO L276 IsEmpty]: Start isEmpty. Operand has 628 states, 450 states have (on average 1.3444444444444446) internal successors, (605), 467 states have internal predecessors, (605), 137 states have call successors, (137), 40 states have call predecessors, (137), 39 states have return successors, (132), 129 states have call predecessors, (132), 132 states have call successors, (132) [2021-12-18 05:45:44,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-18 05:45:44,396 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:45:44,397 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:45:44,397 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:45:44,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:45:44,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1856106833, now seen corresponding path program 1 times [2021-12-18 05:45:44,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:45:44,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [241815923] [2021-12-18 05:45:44,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:45:44,419 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:45:44,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:45:44,421 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 05:45:44,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-18 05:45:44,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:45,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 1345 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-18 05:45:45,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:45:47,216 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-12-18 05:45:47,216 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:45:47,216 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 05:45:47,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [241815923] [2021-12-18 05:45:47,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [241815923] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:45:47,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:45:47,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-18 05:45:47,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501562723] [2021-12-18 05:45:47,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:45:47,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-18 05:45:47,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 05:45:47,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-18 05:45:47,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-18 05:45:47,251 INFO L87 Difference]: Start difference. First operand has 628 states, 450 states have (on average 1.3444444444444446) internal successors, (605), 467 states have internal predecessors, (605), 137 states have call successors, (137), 40 states have call predecessors, (137), 39 states have return successors, (132), 129 states have call predecessors, (132), 132 states have call successors, (132) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-18 05:45:47,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:45:47,354 INFO L93 Difference]: Finished difference Result 1251 states and 1781 transitions. [2021-12-18 05:45:47,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-18 05:45:47,356 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 133 [2021-12-18 05:45:47,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:45:47,375 INFO L225 Difference]: With dead ends: 1251 [2021-12-18 05:45:47,376 INFO L226 Difference]: Without dead ends: 615 [2021-12-18 05:45:47,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-18 05:45:47,386 INFO L933 BasicCegarLoop]: 869 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 05:45:47,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 869 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 05:45:47,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2021-12-18 05:45:47,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615. [2021-12-18 05:45:47,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 444 states have (on average 1.3288288288288288) internal successors, (590), 454 states have internal predecessors, (590), 132 states have call successors, (132), 39 states have call predecessors, (132), 38 states have return successors, (130), 127 states have call predecessors, (130), 130 states have call successors, (130) [2021-12-18 05:45:47,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 852 transitions. [2021-12-18 05:45:47,475 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 852 transitions. Word has length 133 [2021-12-18 05:45:47,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:45:47,475 INFO L470 AbstractCegarLoop]: Abstraction has 615 states and 852 transitions. [2021-12-18 05:45:47,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-18 05:45:47,476 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 852 transitions. [2021-12-18 05:45:47,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-18 05:45:47,482 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:45:47,483 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:45:47,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-18 05:45:47,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:45:47,703 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:45:47,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:45:47,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1666389307, now seen corresponding path program 1 times [2021-12-18 05:45:47,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:45:47,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57033534] [2021-12-18 05:45:47,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:45:47,707 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:45:47,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:45:47,720 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 05:45:47,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-18 05:45:48,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:48,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 1345 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-18 05:45:48,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:45:49,988 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-12-18 05:45:49,988 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:45:49,988 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 05:45:49,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57033534] [2021-12-18 05:45:49,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57033534] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:45:49,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:45:49,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 05:45:49,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822636995] [2021-12-18 05:45:49,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:45:49,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 05:45:49,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 05:45:49,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 05:45:49,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 05:45:49,991 INFO L87 Difference]: Start difference. First operand 615 states and 852 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-18 05:45:51,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:45:51,472 INFO L93 Difference]: Finished difference Result 1220 states and 1700 transitions. [2021-12-18 05:45:51,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 05:45:51,473 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 133 [2021-12-18 05:45:51,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:45:51,478 INFO L225 Difference]: With dead ends: 1220 [2021-12-18 05:45:51,478 INFO L226 Difference]: Without dead ends: 616 [2021-12-18 05:45:51,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-18 05:45:51,483 INFO L933 BasicCegarLoop]: 847 mSDtfsCounter, 6 mSDsluCounter, 3375 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4222 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-18 05:45:51,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 4222 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-18 05:45:51,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2021-12-18 05:45:51,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 616. [2021-12-18 05:45:51,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 445 states have (on average 1.3280898876404494) internal successors, (591), 455 states have internal predecessors, (591), 132 states have call successors, (132), 39 states have call predecessors, (132), 38 states have return successors, (130), 127 states have call predecessors, (130), 130 states have call successors, (130) [2021-12-18 05:45:51,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 853 transitions. [2021-12-18 05:45:51,516 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 853 transitions. Word has length 133 [2021-12-18 05:45:51,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:45:51,518 INFO L470 AbstractCegarLoop]: Abstraction has 616 states and 853 transitions. [2021-12-18 05:45:51,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-18 05:45:51,519 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 853 transitions. [2021-12-18 05:45:51,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-18 05:45:51,524 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:45:51,524 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:45:51,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-18 05:45:51,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:45:51,740 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:45:51,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:45:51,740 INFO L85 PathProgramCache]: Analyzing trace with hash -948571825, now seen corresponding path program 1 times [2021-12-18 05:45:51,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:45:51,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1702076110] [2021-12-18 05:45:51,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:45:51,742 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:45:51,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:45:51,748 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 05:45:51,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-18 05:45:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:52,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 1367 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-18 05:45:52,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:45:54,489 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2021-12-18 05:45:54,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 05:45:59,137 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2021-12-18 05:45:59,137 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 05:45:59,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1702076110] [2021-12-18 05:45:59,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1702076110] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 05:45:59,137 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-18 05:45:59,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-12-18 05:45:59,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466382723] [2021-12-18 05:45:59,138 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-18 05:45:59,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-18 05:45:59,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 05:45:59,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-18 05:45:59,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-12-18 05:45:59,140 INFO L87 Difference]: Start difference. First operand 616 states and 853 transitions. Second operand has 11 states, 9 states have (on average 6.444444444444445) internal successors, (58), 11 states have internal predecessors, (58), 4 states have call successors, (16), 2 states have call predecessors, (16), 5 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-12-18 05:46:02,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:46:02,254 INFO L93 Difference]: Finished difference Result 1227 states and 1708 transitions. [2021-12-18 05:46:02,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 05:46:02,255 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.444444444444445) internal successors, (58), 11 states have internal predecessors, (58), 4 states have call successors, (16), 2 states have call predecessors, (16), 5 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 135 [2021-12-18 05:46:02,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:46:02,260 INFO L225 Difference]: With dead ends: 1227 [2021-12-18 05:46:02,260 INFO L226 Difference]: Without dead ends: 622 [2021-12-18 05:46:02,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2021-12-18 05:46:02,264 INFO L933 BasicCegarLoop]: 848 mSDtfsCounter, 8 mSDsluCounter, 5910 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 6758 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-18 05:46:02,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 6758 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-18 05:46:02,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2021-12-18 05:46:02,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 622. [2021-12-18 05:46:02,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 449 states have (on average 1.3251670378619154) internal successors, (595), 459 states have internal predecessors, (595), 133 states have call successors, (133), 40 states have call predecessors, (133), 39 states have return successors, (131), 128 states have call predecessors, (131), 131 states have call successors, (131) [2021-12-18 05:46:02,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 859 transitions. [2021-12-18 05:46:02,298 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 859 transitions. Word has length 135 [2021-12-18 05:46:02,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:46:02,299 INFO L470 AbstractCegarLoop]: Abstraction has 622 states and 859 transitions. [2021-12-18 05:46:02,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.444444444444445) internal successors, (58), 11 states have internal predecessors, (58), 4 states have call successors, (16), 2 states have call predecessors, (16), 5 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-12-18 05:46:02,299 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 859 transitions. [2021-12-18 05:46:02,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-18 05:46:02,301 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:46:02,301 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:46:02,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-18 05:46:02,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:46:02,518 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:46:02,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:46:02,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1599863547, now seen corresponding path program 2 times [2021-12-18 05:46:02,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:46:02,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [306465039] [2021-12-18 05:46:02,520 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-18 05:46:02,520 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:46:02,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:46:02,521 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 05:46:02,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-18 05:46:02,960 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-18 05:46:02,960 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 05:46:02,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 1072 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 05:46:02,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:46:09,615 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2021-12-18 05:46:09,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:46:09,615 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 05:46:09,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [306465039] [2021-12-18 05:46:09,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [306465039] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:46:09,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:46:09,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-18 05:46:09,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734139091] [2021-12-18 05:46:09,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:46:09,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 05:46:09,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 05:46:09,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 05:46:09,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 05:46:09,617 INFO L87 Difference]: Start difference. First operand 622 states and 859 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2021-12-18 05:46:09,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:46:09,811 INFO L93 Difference]: Finished difference Result 1806 states and 2508 transitions. [2021-12-18 05:46:09,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 05:46:09,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 137 [2021-12-18 05:46:09,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:46:09,816 INFO L225 Difference]: With dead ends: 1806 [2021-12-18 05:46:09,817 INFO L226 Difference]: Without dead ends: 1209 [2021-12-18 05:46:09,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 05:46:09,820 INFO L933 BasicCegarLoop]: 996 mSDtfsCounter, 789 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 1811 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-18 05:46:09,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [789 Valid, 1811 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-18 05:46:09,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2021-12-18 05:46:09,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1206. [2021-12-18 05:46:09,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 875 states have (on average 1.3302857142857143) internal successors, (1164), 894 states have internal predecessors, (1164), 254 states have call successors, (254), 77 states have call predecessors, (254), 76 states have return successors, (252), 246 states have call predecessors, (252), 252 states have call successors, (252) [2021-12-18 05:46:09,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 1670 transitions. [2021-12-18 05:46:09,850 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 1670 transitions. Word has length 137 [2021-12-18 05:46:09,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:46:09,851 INFO L470 AbstractCegarLoop]: Abstraction has 1206 states and 1670 transitions. [2021-12-18 05:46:09,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2021-12-18 05:46:09,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 1670 transitions. [2021-12-18 05:46:09,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-12-18 05:46:09,855 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:46:09,855 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:46:09,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-18 05:46:10,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:46:10,071 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:46:10,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:46:10,071 INFO L85 PathProgramCache]: Analyzing trace with hash -544277527, now seen corresponding path program 1 times [2021-12-18 05:46:10,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:46:10,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1759535568] [2021-12-18 05:46:10,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:46:10,073 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:46:10,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:46:10,085 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 05:46:10,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-18 05:46:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:46:10,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 1470 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-18 05:46:10,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:46:13,438 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2021-12-18 05:46:13,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 05:46:19,232 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2021-12-18 05:46:19,232 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 05:46:19,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1759535568] [2021-12-18 05:46:19,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1759535568] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 05:46:19,232 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-18 05:46:19,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-12-18 05:46:19,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870937339] [2021-12-18 05:46:19,232 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-18 05:46:19,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-18 05:46:19,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 05:46:19,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-18 05:46:19,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-12-18 05:46:19,233 INFO L87 Difference]: Start difference. First operand 1206 states and 1670 transitions. Second operand has 13 states, 11 states have (on average 6.818181818181818) internal successors, (75), 13 states have internal predecessors, (75), 4 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2021-12-18 05:46:22,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:46:22,298 INFO L93 Difference]: Finished difference Result 2403 states and 3348 transitions. [2021-12-18 05:46:22,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 05:46:22,299 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.818181818181818) internal successors, (75), 13 states have internal predecessors, (75), 4 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 154 [2021-12-18 05:46:22,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:46:22,305 INFO L225 Difference]: With dead ends: 2403 [2021-12-18 05:46:22,305 INFO L226 Difference]: Without dead ends: 1208 [2021-12-18 05:46:22,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-12-18 05:46:22,310 INFO L933 BasicCegarLoop]: 848 mSDtfsCounter, 15 mSDsluCounter, 3378 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4226 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-18 05:46:22,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 4226 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-18 05:46:22,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2021-12-18 05:46:22,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1208. [2021-12-18 05:46:22,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1208 states, 877 states have (on average 1.329532497149373) internal successors, (1166), 896 states have internal predecessors, (1166), 254 states have call successors, (254), 77 states have call predecessors, (254), 76 states have return successors, (252), 246 states have call predecessors, (252), 252 states have call successors, (252) [2021-12-18 05:46:22,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1672 transitions. [2021-12-18 05:46:22,345 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1672 transitions. Word has length 154 [2021-12-18 05:46:22,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:46:22,346 INFO L470 AbstractCegarLoop]: Abstraction has 1208 states and 1672 transitions. [2021-12-18 05:46:22,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.818181818181818) internal successors, (75), 13 states have internal predecessors, (75), 4 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2021-12-18 05:46:22,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1672 transitions. [2021-12-18 05:46:22,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-12-18 05:46:22,349 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:46:22,349 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:46:22,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-12-18 05:46:22,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:46:22,563 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:46:22,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:46:22,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1428874527, now seen corresponding path program 2 times [2021-12-18 05:46:22,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:46:22,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [45981489] [2021-12-18 05:46:22,565 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-18 05:46:22,565 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:46:22,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:46:22,572 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 05:46:22,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-18 05:46:23,097 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-18 05:46:23,097 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 05:46:23,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 1153 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 05:46:23,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:46:24,186 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2021-12-18 05:46:24,186 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:46:24,187 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 05:46:24,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [45981489] [2021-12-18 05:46:24,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [45981489] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:46:24,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:46:24,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 05:46:24,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188457632] [2021-12-18 05:46:24,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:46:24,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 05:46:24,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 05:46:24,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 05:46:24,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 05:46:24,188 INFO L87 Difference]: Start difference. First operand 1208 states and 1672 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-18 05:46:24,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:46:24,411 INFO L93 Difference]: Finished difference Result 2213 states and 3047 transitions. [2021-12-18 05:46:24,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 05:46:24,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 156 [2021-12-18 05:46:24,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:46:24,416 INFO L225 Difference]: With dead ends: 2213 [2021-12-18 05:46:24,416 INFO L226 Difference]: Without dead ends: 1034 [2021-12-18 05:46:24,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 05:46:24,419 INFO L933 BasicCegarLoop]: 720 mSDtfsCounter, 714 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-18 05:46:24,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [714 Valid, 720 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-18 05:46:24,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2021-12-18 05:46:24,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 1034. [2021-12-18 05:46:24,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 753 states have (on average 1.3227091633466135) internal successors, (996), 766 states have internal predecessors, (996), 208 states have call successors, (208), 73 states have call predecessors, (208), 72 states have return successors, (206), 202 states have call predecessors, (206), 206 states have call successors, (206) [2021-12-18 05:46:24,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1410 transitions. [2021-12-18 05:46:24,442 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1410 transitions. Word has length 156 [2021-12-18 05:46:24,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:46:24,443 INFO L470 AbstractCegarLoop]: Abstraction has 1034 states and 1410 transitions. [2021-12-18 05:46:24,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-18 05:46:24,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1410 transitions. [2021-12-18 05:46:24,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-12-18 05:46:24,446 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:46:24,446 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:46:24,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-12-18 05:46:24,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:46:24,667 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:46:24,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:46:24,668 INFO L85 PathProgramCache]: Analyzing trace with hash 2064448554, now seen corresponding path program 1 times [2021-12-18 05:46:24,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:46:24,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [618349805] [2021-12-18 05:46:24,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:46:24,669 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:46:24,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:46:24,670 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 05:46:24,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-18 05:46:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:46:25,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 1561 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-18 05:46:25,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:46:28,877 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 24 proven. 6 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2021-12-18 05:46:28,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 05:46:36,667 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-12-18 05:46:36,668 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 05:46:36,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [618349805] [2021-12-18 05:46:36,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [618349805] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 05:46:36,668 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-18 05:46:36,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2021-12-18 05:46:36,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615363550] [2021-12-18 05:46:36,668 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-18 05:46:36,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-18 05:46:36,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 05:46:36,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-18 05:46:36,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-12-18 05:46:36,669 INFO L87 Difference]: Start difference. First operand 1034 states and 1410 transitions. Second operand has 15 states, 13 states have (on average 7.461538461538462) internal successors, (97), 15 states have internal predecessors, (97), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2021-12-18 05:46:40,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:46:40,556 INFO L93 Difference]: Finished difference Result 2059 states and 2828 transitions. [2021-12-18 05:46:40,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 05:46:40,557 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 7.461538461538462) internal successors, (97), 15 states have internal predecessors, (97), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 173 [2021-12-18 05:46:40,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:46:40,562 INFO L225 Difference]: With dead ends: 2059 [2021-12-18 05:46:40,562 INFO L226 Difference]: Without dead ends: 1036 [2021-12-18 05:46:40,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2021-12-18 05:46:40,566 INFO L933 BasicCegarLoop]: 717 mSDtfsCounter, 10 mSDsluCounter, 5709 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 6426 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-18 05:46:40,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 6426 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-18 05:46:40,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2021-12-18 05:46:40,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1036. [2021-12-18 05:46:40,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1036 states, 755 states have (on average 1.3218543046357616) internal successors, (998), 768 states have internal predecessors, (998), 208 states have call successors, (208), 73 states have call predecessors, (208), 72 states have return successors, (206), 202 states have call predecessors, (206), 206 states have call successors, (206) [2021-12-18 05:46:40,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 1412 transitions. [2021-12-18 05:46:40,593 INFO L78 Accepts]: Start accepts. Automaton has 1036 states and 1412 transitions. Word has length 173 [2021-12-18 05:46:40,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:46:40,593 INFO L470 AbstractCegarLoop]: Abstraction has 1036 states and 1412 transitions. [2021-12-18 05:46:40,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 7.461538461538462) internal successors, (97), 15 states have internal predecessors, (97), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2021-12-18 05:46:40,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1036 states and 1412 transitions. [2021-12-18 05:46:40,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-18 05:46:40,596 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:46:40,596 INFO L514 BasicCegarLoop]: trace histogram [8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:46:40,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-12-18 05:46:40,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:46:40,822 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:46:40,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:46:40,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1973996768, now seen corresponding path program 2 times [2021-12-18 05:46:40,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:46:40,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [711528114] [2021-12-18 05:46:40,824 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-18 05:46:40,824 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:46:40,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:46:40,827 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 05:46:40,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-12-18 05:46:41,319 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-18 05:46:41,319 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 05:46:41,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 1072 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 05:46:41,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:46:43,583 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2021-12-18 05:46:43,583 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:46:43,583 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 05:46:43,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [711528114] [2021-12-18 05:46:43,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [711528114] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:46:43,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:46:43,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 05:46:43,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310914394] [2021-12-18 05:46:43,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:46:43,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 05:46:43,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 05:46:43,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 05:46:43,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 05:46:43,584 INFO L87 Difference]: Start difference. First operand 1036 states and 1412 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-18 05:46:44,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:46:44,293 INFO L93 Difference]: Finished difference Result 3039 states and 4149 transitions. [2021-12-18 05:46:44,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 05:46:44,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 175 [2021-12-18 05:46:44,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:46:44,304 INFO L225 Difference]: With dead ends: 3039 [2021-12-18 05:46:44,304 INFO L226 Difference]: Without dead ends: 2032 [2021-12-18 05:46:44,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 05:46:44,307 INFO L933 BasicCegarLoop]: 869 mSDtfsCounter, 641 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 1576 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-18 05:46:44,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [641 Valid, 1576 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-18 05:46:44,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2032 states. [2021-12-18 05:46:44,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2032 to 2028. [2021-12-18 05:46:44,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 1481 states have (on average 1.3234301147873058) internal successors, (1960), 1506 states have internal predecessors, (1960), 404 states have call successors, (404), 143 states have call predecessors, (404), 142 states have return successors, (402), 394 states have call predecessors, (402), 402 states have call successors, (402) [2021-12-18 05:46:44,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2766 transitions. [2021-12-18 05:46:44,351 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2766 transitions. Word has length 175 [2021-12-18 05:46:44,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:46:44,353 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 2766 transitions. [2021-12-18 05:46:44,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-18 05:46:44,354 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2766 transitions. [2021-12-18 05:46:44,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-12-18 05:46:44,356 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:46:44,356 INFO L514 BasicCegarLoop]: trace histogram [8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:46:44,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-12-18 05:46:44,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:46:44,577 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:46:44,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:46:44,577 INFO L85 PathProgramCache]: Analyzing trace with hash -2040758566, now seen corresponding path program 1 times [2021-12-18 05:46:44,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:46:44,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2099704083] [2021-12-18 05:46:44,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:46:44,579 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:46:44,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:46:44,580 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 05:46:44,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-12-18 05:46:45,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:46:45,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 1645 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-18 05:46:45,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:46:49,344 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 33 proven. 10 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-12-18 05:46:49,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 05:46:58,795 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-12-18 05:46:58,795 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 05:46:58,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2099704083] [2021-12-18 05:46:58,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2099704083] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 05:46:58,796 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-18 05:46:58,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-12-18 05:46:58,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136301809] [2021-12-18 05:46:58,796 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-18 05:46:58,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-18 05:46:58,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 05:46:58,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-18 05:46:58,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2021-12-18 05:46:58,797 INFO L87 Difference]: Start difference. First operand 2028 states and 2766 transitions. Second operand has 17 states, 15 states have (on average 6.8) internal successors, (102), 17 states have internal predecessors, (102), 4 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2021-12-18 05:47:05,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:47:05,255 INFO L93 Difference]: Finished difference Result 4056 states and 5573 transitions. [2021-12-18 05:47:05,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-18 05:47:05,257 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 6.8) internal successors, (102), 17 states have internal predecessors, (102), 4 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 182 [2021-12-18 05:47:05,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:47:05,265 INFO L225 Difference]: With dead ends: 4056 [2021-12-18 05:47:05,266 INFO L226 Difference]: Without dead ends: 2040 [2021-12-18 05:47:05,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2021-12-18 05:47:05,275 INFO L933 BasicCegarLoop]: 718 mSDtfsCounter, 14 mSDsluCounter, 5708 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 6426 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-12-18 05:47:05,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 6426 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2021-12-18 05:47:05,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2040 states. [2021-12-18 05:47:05,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2040 to 2040. [2021-12-18 05:47:05,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2040 states, 1492 states have (on average 1.32171581769437) internal successors, (1972), 1517 states have internal predecessors, (1972), 404 states have call successors, (404), 144 states have call predecessors, (404), 143 states have return successors, (402), 394 states have call predecessors, (402), 402 states have call successors, (402) [2021-12-18 05:47:05,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2040 states to 2040 states and 2778 transitions. [2021-12-18 05:47:05,376 INFO L78 Accepts]: Start accepts. Automaton has 2040 states and 2778 transitions. Word has length 182 [2021-12-18 05:47:05,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:47:05,376 INFO L470 AbstractCegarLoop]: Abstraction has 2040 states and 2778 transitions. [2021-12-18 05:47:05,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 6.8) internal successors, (102), 17 states have internal predecessors, (102), 4 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2021-12-18 05:47:05,377 INFO L276 IsEmpty]: Start isEmpty. Operand 2040 states and 2778 transitions. [2021-12-18 05:47:05,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-12-18 05:47:05,380 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:47:05,380 INFO L514 BasicCegarLoop]: trace histogram [9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:47:05,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-12-18 05:47:05,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:47:05,610 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:47:05,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:47:05,611 INFO L85 PathProgramCache]: Analyzing trace with hash -798619786, now seen corresponding path program 2 times [2021-12-18 05:47:05,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:47:05,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [100970690] [2021-12-18 05:47:05,612 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-18 05:47:05,612 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:47:05,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:47:05,614 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 05:47:05,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-12-18 05:47:06,177 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-18 05:47:06,178 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 05:47:06,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 1284 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 05:47:06,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:47:07,751 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2021-12-18 05:47:07,751 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:47:07,751 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 05:47:07,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [100970690] [2021-12-18 05:47:07,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [100970690] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:47:07,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:47:07,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 05:47:07,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009480560] [2021-12-18 05:47:07,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:47:07,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 05:47:07,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 05:47:07,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 05:47:07,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 05:47:07,752 INFO L87 Difference]: Start difference. First operand 2040 states and 2778 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 05:47:08,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:47:08,179 INFO L93 Difference]: Finished difference Result 5488 states and 7483 transitions. [2021-12-18 05:47:08,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 05:47:08,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 183 [2021-12-18 05:47:08,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:47:08,215 INFO L225 Difference]: With dead ends: 5488 [2021-12-18 05:47:08,215 INFO L226 Difference]: Without dead ends: 3481 [2021-12-18 05:47:08,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 05:47:08,230 INFO L933 BasicCegarLoop]: 808 mSDtfsCounter, 530 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 1491 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-18 05:47:08,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [530 Valid, 1491 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-18 05:47:08,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3481 states. [2021-12-18 05:47:08,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3481 to 3474. [2021-12-18 05:47:08,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3474 states, 2542 states have (on average 1.3273013375295044) internal successors, (3374), 2583 states have internal predecessors, (3374), 682 states have call successors, (682), 250 states have call predecessors, (682), 249 states have return successors, (680), 672 states have call predecessors, (680), 680 states have call successors, (680) [2021-12-18 05:47:08,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3474 states to 3474 states and 4736 transitions. [2021-12-18 05:47:08,377 INFO L78 Accepts]: Start accepts. Automaton has 3474 states and 4736 transitions. Word has length 183 [2021-12-18 05:47:08,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:47:08,377 INFO L470 AbstractCegarLoop]: Abstraction has 3474 states and 4736 transitions. [2021-12-18 05:47:08,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 05:47:08,378 INFO L276 IsEmpty]: Start isEmpty. Operand 3474 states and 4736 transitions. [2021-12-18 05:47:08,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-12-18 05:47:08,383 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:47:08,383 INFO L514 BasicCegarLoop]: trace histogram [9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:47:08,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-12-18 05:47:08,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:47:08,605 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:47:08,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:47:08,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1474429788, now seen corresponding path program 1 times [2021-12-18 05:47:08,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:47:08,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [683120451] [2021-12-18 05:47:08,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:47:08,607 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:47:08,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:47:08,608 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 05:47:08,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-12-18 05:47:09,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:09,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 1616 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-18 05:47:09,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:47:14,507 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 38 proven. 15 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2021-12-18 05:47:14,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 05:47:25,651 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-12-18 05:47:25,652 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 05:47:25,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [683120451] [2021-12-18 05:47:25,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [683120451] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 05:47:25,652 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-18 05:47:25,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-12-18 05:47:25,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427948232] [2021-12-18 05:47:25,652 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-18 05:47:25,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-18 05:47:25,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 05:47:25,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-18 05:47:25,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2021-12-18 05:47:25,653 INFO L87 Difference]: Start difference. First operand 3474 states and 4736 transitions. Second operand has 19 states, 17 states have (on average 6.352941176470588) internal successors, (108), 19 states have internal predecessors, (108), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2021-12-18 05:47:34,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:47:34,324 INFO L93 Difference]: Finished difference Result 6944 states and 9530 transitions. [2021-12-18 05:47:34,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-18 05:47:34,325 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 6.352941176470588) internal successors, (108), 19 states have internal predecessors, (108), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 187 [2021-12-18 05:47:34,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:47:34,340 INFO L225 Difference]: With dead ends: 6944 [2021-12-18 05:47:34,340 INFO L226 Difference]: Without dead ends: 3482 [2021-12-18 05:47:34,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2021-12-18 05:47:34,353 INFO L933 BasicCegarLoop]: 719 mSDtfsCounter, 19 mSDsluCounter, 7143 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 7862 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-12-18 05:47:34,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 7862 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2021-12-18 05:47:34,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3482 states. [2021-12-18 05:47:34,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3482 to 3482. [2021-12-18 05:47:34,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3482 states, 2550 states have (on average 1.3262745098039215) internal successors, (3382), 2591 states have internal predecessors, (3382), 682 states have call successors, (682), 250 states have call predecessors, (682), 249 states have return successors, (680), 672 states have call predecessors, (680), 680 states have call successors, (680) [2021-12-18 05:47:34,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3482 states to 3482 states and 4744 transitions. [2021-12-18 05:47:34,561 INFO L78 Accepts]: Start accepts. Automaton has 3482 states and 4744 transitions. Word has length 187 [2021-12-18 05:47:34,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:47:34,562 INFO L470 AbstractCegarLoop]: Abstraction has 3482 states and 4744 transitions. [2021-12-18 05:47:34,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 6.352941176470588) internal successors, (108), 19 states have internal predecessors, (108), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2021-12-18 05:47:34,563 INFO L276 IsEmpty]: Start isEmpty. Operand 3482 states and 4744 transitions. [2021-12-18 05:47:34,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-12-18 05:47:34,568 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:47:34,568 INFO L514 BasicCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:47:34,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-12-18 05:47:34,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:47:34,796 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:47:34,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:47:34,796 INFO L85 PathProgramCache]: Analyzing trace with hash 146897984, now seen corresponding path program 2 times [2021-12-18 05:47:34,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:47:34,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [779323501] [2021-12-18 05:47:34,798 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-18 05:47:34,798 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:47:34,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:47:34,799 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 05:47:34,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-12-18 05:47:37,398 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-18 05:47:37,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 05:47:37,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 1627 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-18 05:47:37,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:47:42,994 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 43 proven. 21 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2021-12-18 05:47:42,995 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 05:47:57,091 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-12-18 05:47:57,091 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 05:47:57,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [779323501] [2021-12-18 05:47:57,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [779323501] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 05:47:57,091 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-18 05:47:57,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2021-12-18 05:47:57,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378415928] [2021-12-18 05:47:57,092 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-18 05:47:57,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-12-18 05:47:57,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 05:47:57,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-12-18 05:47:57,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2021-12-18 05:47:57,093 INFO L87 Difference]: Start difference. First operand 3482 states and 4744 transitions. Second operand has 21 states, 19 states have (on average 5.7894736842105265) internal successors, (110), 21 states have internal predecessors, (110), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2021-12-18 05:48:05,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:48:05,538 INFO L93 Difference]: Finished difference Result 6960 states and 9546 transitions. [2021-12-18 05:48:05,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-18 05:48:05,539 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 5.7894736842105265) internal successors, (110), 21 states have internal predecessors, (110), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 188 [2021-12-18 05:48:05,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:48:05,558 INFO L225 Difference]: With dead ends: 6960 [2021-12-18 05:48:05,558 INFO L226 Difference]: Without dead ends: 3490 [2021-12-18 05:48:05,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=150, Invalid=606, Unknown=0, NotChecked=0, Total=756 [2021-12-18 05:48:05,569 INFO L933 BasicCegarLoop]: 719 mSDtfsCounter, 25 mSDsluCounter, 7141 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 7860 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-12-18 05:48:05,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 7860 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2021-12-18 05:48:05,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3490 states. [2021-12-18 05:48:05,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3490 to 3490. [2021-12-18 05:48:05,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3490 states, 2558 states have (on average 1.3252541047693511) internal successors, (3390), 2599 states have internal predecessors, (3390), 682 states have call successors, (682), 250 states have call predecessors, (682), 249 states have return successors, (680), 672 states have call predecessors, (680), 680 states have call successors, (680) [2021-12-18 05:48:05,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3490 states to 3490 states and 4752 transitions. [2021-12-18 05:48:05,647 INFO L78 Accepts]: Start accepts. Automaton has 3490 states and 4752 transitions. Word has length 188 [2021-12-18 05:48:05,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:48:05,647 INFO L470 AbstractCegarLoop]: Abstraction has 3490 states and 4752 transitions. [2021-12-18 05:48:05,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 5.7894736842105265) internal successors, (110), 21 states have internal predecessors, (110), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2021-12-18 05:48:05,647 INFO L276 IsEmpty]: Start isEmpty. Operand 3490 states and 4752 transitions. [2021-12-18 05:48:05,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-12-18 05:48:05,651 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:48:05,651 INFO L514 BasicCegarLoop]: trace histogram [11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:48:05,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-12-18 05:48:05,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:48:05,867 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:48:05,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:48:05,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1943085020, now seen corresponding path program 3 times [2021-12-18 05:48:05,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:48:05,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [616203356] [2021-12-18 05:48:05,868 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-18 05:48:05,868 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:48:05,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:48:05,870 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 05:48:05,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-12-18 05:48:08,367 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-12-18 05:48:08,368 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 05:48:08,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 1329 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-18 05:48:08,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:48:08,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-18 05:48:08,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-18 05:48:09,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-18 05:48:09,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-18 05:48:10,208 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2021-12-18 05:48:10,209 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:48:10,209 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 05:48:10,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [616203356] [2021-12-18 05:48:10,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [616203356] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:48:10,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:48:10,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 05:48:10,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248705339] [2021-12-18 05:48:10,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:48:10,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 05:48:10,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 05:48:10,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 05:48:10,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 05:48:10,210 INFO L87 Difference]: Start difference. First operand 3490 states and 4752 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-18 05:48:13,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:48:17,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:48:19,358 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:48:22,278 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:48:23,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:48:23,060 INFO L93 Difference]: Finished difference Result 6947 states and 9471 transitions. [2021-12-18 05:48:23,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 05:48:23,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 189 [2021-12-18 05:48:23,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:48:23,087 INFO L225 Difference]: With dead ends: 6947 [2021-12-18 05:48:23,088 INFO L226 Difference]: Without dead ends: 3502 [2021-12-18 05:48:23,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 05:48:23,100 INFO L933 BasicCegarLoop]: 719 mSDtfsCounter, 2 mSDsluCounter, 1354 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2073 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2021-12-18 05:48:23,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 2073 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 4 Unknown, 0 Unchecked, 12.5s Time] [2021-12-18 05:48:23,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3502 states. [2021-12-18 05:48:23,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3502 to 3498. [2021-12-18 05:48:23,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3498 states, 2566 states have (on average 1.3242400623538582) internal successors, (3398), 2607 states have internal predecessors, (3398), 682 states have call successors, (682), 250 states have call predecessors, (682), 249 states have return successors, (680), 672 states have call predecessors, (680), 680 states have call successors, (680) [2021-12-18 05:48:23,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3498 states to 3498 states and 4760 transitions. [2021-12-18 05:48:23,238 INFO L78 Accepts]: Start accepts. Automaton has 3498 states and 4760 transitions. Word has length 189 [2021-12-18 05:48:23,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:48:23,240 INFO L470 AbstractCegarLoop]: Abstraction has 3498 states and 4760 transitions. [2021-12-18 05:48:23,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-18 05:48:23,240 INFO L276 IsEmpty]: Start isEmpty. Operand 3498 states and 4760 transitions. [2021-12-18 05:48:23,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-12-18 05:48:23,245 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:48:23,245 INFO L514 BasicCegarLoop]: trace histogram [11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:48:23,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-12-18 05:48:23,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:48:23,465 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:48:23,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:48:23,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1478100512, now seen corresponding path program 1 times [2021-12-18 05:48:23,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:48:23,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1996320493] [2021-12-18 05:48:23,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:48:23,467 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:48:23,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:48:23,469 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 05:48:23,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-12-18 05:48:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:24,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 1669 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-18 05:48:24,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:48:31,959 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 48 proven. 28 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2021-12-18 05:48:31,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 05:48:50,062 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-12-18 05:48:50,062 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 05:48:50,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1996320493] [2021-12-18 05:48:50,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1996320493] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 05:48:50,063 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-18 05:48:50,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2021-12-18 05:48:50,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392772958] [2021-12-18 05:48:50,063 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-18 05:48:50,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-12-18 05:48:50,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 05:48:50,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-12-18 05:48:50,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2021-12-18 05:48:50,064 INFO L87 Difference]: Start difference. First operand 3498 states and 4760 transitions. Second operand has 23 states, 21 states have (on average 5.809523809523809) internal successors, (122), 23 states have internal predecessors, (122), 4 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2021-12-18 05:49:02,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:49:02,658 INFO L93 Difference]: Finished difference Result 6992 states and 9578 transitions. [2021-12-18 05:49:02,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-18 05:49:02,659 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 5.809523809523809) internal successors, (122), 23 states have internal predecessors, (122), 4 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 196 [2021-12-18 05:49:02,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:49:02,678 INFO L225 Difference]: With dead ends: 6992 [2021-12-18 05:49:02,678 INFO L226 Difference]: Without dead ends: 3506 [2021-12-18 05:49:02,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 20.2s TimeCoverageRelationStatistics Valid=169, Invalid=701, Unknown=0, NotChecked=0, Total=870 [2021-12-18 05:49:02,687 INFO L933 BasicCegarLoop]: 719 mSDtfsCounter, 22 mSDsluCounter, 9997 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 10716 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2021-12-18 05:49:02,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 10716 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2021-12-18 05:49:02,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3506 states. [2021-12-18 05:49:02,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3506 to 3506. [2021-12-18 05:49:02,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3506 states, 2574 states have (on average 1.3232323232323233) internal successors, (3406), 2615 states have internal predecessors, (3406), 682 states have call successors, (682), 250 states have call predecessors, (682), 249 states have return successors, (680), 672 states have call predecessors, (680), 680 states have call successors, (680) [2021-12-18 05:49:02,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3506 states to 3506 states and 4768 transitions. [2021-12-18 05:49:02,755 INFO L78 Accepts]: Start accepts. Automaton has 3506 states and 4768 transitions. Word has length 196 [2021-12-18 05:49:02,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:49:02,756 INFO L470 AbstractCegarLoop]: Abstraction has 3506 states and 4768 transitions. [2021-12-18 05:49:02,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 5.809523809523809) internal successors, (122), 23 states have internal predecessors, (122), 4 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2021-12-18 05:49:02,756 INFO L276 IsEmpty]: Start isEmpty. Operand 3506 states and 4768 transitions. [2021-12-18 05:49:02,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-12-18 05:49:02,761 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:49:02,761 INFO L514 BasicCegarLoop]: trace histogram [12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:49:02,787 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-12-18 05:49:02,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:49:02,980 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:49:02,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:49:02,980 INFO L85 PathProgramCache]: Analyzing trace with hash 814370236, now seen corresponding path program 2 times [2021-12-18 05:49:02,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:49:02,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1370051807] [2021-12-18 05:49:02,982 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-18 05:49:02,982 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:49:02,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:49:02,983 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 05:49:02,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-12-18 05:49:05,476 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-18 05:49:05,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 05:49:05,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 1680 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-18 05:49:05,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:49:07,656 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2021-12-18 05:49:07,657 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:49:07,657 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 05:49:07,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1370051807] [2021-12-18 05:49:07,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1370051807] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:49:07,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:49:07,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 05:49:07,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905217416] [2021-12-18 05:49:07,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:49:07,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 05:49:07,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 05:49:07,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 05:49:07,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 05:49:07,658 INFO L87 Difference]: Start difference. First operand 3506 states and 4768 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2021-12-18 05:49:09,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:49:09,895 INFO L93 Difference]: Finished difference Result 8305 states and 11635 transitions. [2021-12-18 05:49:09,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 05:49:09,896 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 197 [2021-12-18 05:49:09,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:49:09,932 INFO L225 Difference]: With dead ends: 8305 [2021-12-18 05:49:09,932 INFO L226 Difference]: Without dead ends: 4844 [2021-12-18 05:49:09,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-18 05:49:09,952 INFO L933 BasicCegarLoop]: 910 mSDtfsCounter, 590 mSDsluCounter, 4177 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 5087 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-18 05:49:09,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [590 Valid, 5087 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-18 05:49:09,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4844 states. [2021-12-18 05:49:10,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4844 to 3530. [2021-12-18 05:49:10,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3530 states, 2594 states have (on average 1.3207401696222052) internal successors, (3426), 2635 states have internal predecessors, (3426), 682 states have call successors, (682), 250 states have call predecessors, (682), 253 states have return successors, (688), 676 states have call predecessors, (688), 680 states have call successors, (688) [2021-12-18 05:49:10,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3530 states to 3530 states and 4796 transitions. [2021-12-18 05:49:10,170 INFO L78 Accepts]: Start accepts. Automaton has 3530 states and 4796 transitions. Word has length 197 [2021-12-18 05:49:10,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:49:10,172 INFO L470 AbstractCegarLoop]: Abstraction has 3530 states and 4796 transitions. [2021-12-18 05:49:10,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2021-12-18 05:49:10,172 INFO L276 IsEmpty]: Start isEmpty. Operand 3530 states and 4796 transitions. [2021-12-18 05:49:10,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-12-18 05:49:10,180 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:49:10,180 INFO L514 BasicCegarLoop]: trace histogram [12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:49:10,244 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-12-18 05:49:10,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:49:10,403 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:49:10,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:49:10,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1231154911, now seen corresponding path program 1 times [2021-12-18 05:49:10,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:49:10,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [847978993] [2021-12-18 05:49:10,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:49:10,406 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:49:10,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:49:10,420 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 05:49:10,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-12-18 05:49:11,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:11,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-18 05:49:11,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:49:13,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-18 05:49:13,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-18 05:49:14,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-18 05:49:14,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-18 05:49:15,911 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2021-12-18 05:49:15,911 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:49:15,911 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 05:49:15,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [847978993] [2021-12-18 05:49:15,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [847978993] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:49:15,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:49:15,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 05:49:15,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327526835] [2021-12-18 05:49:15,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:49:15,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 05:49:15,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 05:49:15,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 05:49:15,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-18 05:49:15,912 INFO L87 Difference]: Start difference. First operand 3530 states and 4796 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 05:49:20,377 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:49:24,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:49:26,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:49:29,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:49:31,441 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:49:32,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:49:32,938 INFO L93 Difference]: Finished difference Result 7059 states and 9627 transitions. [2021-12-18 05:49:32,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 05:49:32,945 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) Word has length 201 [2021-12-18 05:49:32,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:49:32,994 INFO L225 Difference]: With dead ends: 7059 [2021-12-18 05:49:32,994 INFO L226 Difference]: Without dead ends: 3574 [2021-12-18 05:49:33,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-12-18 05:49:33,001 INFO L933 BasicCegarLoop]: 718 mSDtfsCounter, 3 mSDsluCounter, 4221 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4939 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2021-12-18 05:49:33,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 4939 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 105 Invalid, 5 Unknown, 0 Unchecked, 15.9s Time] [2021-12-18 05:49:33,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3574 states. [2021-12-18 05:49:33,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3574 to 3554. [2021-12-18 05:49:33,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3554 states, 2610 states have (on average 1.3187739463601533) internal successors, (3442), 2651 states have internal predecessors, (3442), 682 states have call successors, (682), 250 states have call predecessors, (682), 261 states have return successors, (720), 684 states have call predecessors, (720), 680 states have call successors, (720) [2021-12-18 05:49:33,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3554 states to 3554 states and 4844 transitions. [2021-12-18 05:49:33,097 INFO L78 Accepts]: Start accepts. Automaton has 3554 states and 4844 transitions. Word has length 201 [2021-12-18 05:49:33,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:49:33,098 INFO L470 AbstractCegarLoop]: Abstraction has 3554 states and 4844 transitions. [2021-12-18 05:49:33,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-18 05:49:33,098 INFO L276 IsEmpty]: Start isEmpty. Operand 3554 states and 4844 transitions. [2021-12-18 05:49:33,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-12-18 05:49:33,104 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:49:33,104 INFO L514 BasicCegarLoop]: trace histogram [12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:49:33,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-12-18 05:49:33,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:49:33,324 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:49:33,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:49:33,324 INFO L85 PathProgramCache]: Analyzing trace with hash -2015509605, now seen corresponding path program 1 times [2021-12-18 05:49:33,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:49:33,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1073408344] [2021-12-18 05:49:33,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:49:33,325 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:49:33,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:49:33,326 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 05:49:33,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-12-18 05:49:34,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:34,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 1713 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-18 05:49:34,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:49:39,145 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2021-12-18 05:49:39,145 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:49:39,145 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 05:49:39,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1073408344] [2021-12-18 05:49:39,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1073408344] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:49:39,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:49:39,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 05:49:39,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544912438] [2021-12-18 05:49:39,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:49:39,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 05:49:39,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 05:49:39,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 05:49:39,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 05:49:39,146 INFO L87 Difference]: Start difference. First operand 3554 states and 4844 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 05:49:40,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:49:40,326 INFO L93 Difference]: Finished difference Result 7874 states and 10923 transitions. [2021-12-18 05:49:40,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 05:49:40,327 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) Word has length 208 [2021-12-18 05:49:40,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:49:40,341 INFO L225 Difference]: With dead ends: 7874 [2021-12-18 05:49:40,341 INFO L226 Difference]: Without dead ends: 4365 [2021-12-18 05:49:40,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-18 05:49:40,347 INFO L933 BasicCegarLoop]: 916 mSDtfsCounter, 151 mSDsluCounter, 4397 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 5313 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-18 05:49:40,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 5313 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-18 05:49:40,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4365 states. [2021-12-18 05:49:40,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4365 to 3562. [2021-12-18 05:49:40,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3562 states, 2618 states have (on average 1.317799847211612) internal successors, (3450), 2655 states have internal predecessors, (3450), 682 states have call successors, (682), 250 states have call predecessors, (682), 261 states have return successors, (720), 688 states have call predecessors, (720), 680 states have call successors, (720) [2021-12-18 05:49:40,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3562 states to 3562 states and 4852 transitions. [2021-12-18 05:49:40,433 INFO L78 Accepts]: Start accepts. Automaton has 3562 states and 4852 transitions. Word has length 208 [2021-12-18 05:49:40,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:49:40,433 INFO L470 AbstractCegarLoop]: Abstraction has 3562 states and 4852 transitions. [2021-12-18 05:49:40,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 05:49:40,433 INFO L276 IsEmpty]: Start isEmpty. Operand 3562 states and 4852 transitions. [2021-12-18 05:49:40,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-12-18 05:49:40,437 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:49:40,437 INFO L514 BasicCegarLoop]: trace histogram [12, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:49:40,465 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-12-18 05:49:40,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:49:40,651 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:49:40,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:49:40,652 INFO L85 PathProgramCache]: Analyzing trace with hash -2101766177, now seen corresponding path program 1 times [2021-12-18 05:49:40,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:49:40,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [482044731] [2021-12-18 05:49:40,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:49:40,653 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:49:40,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:49:40,654 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 05:49:40,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-12-18 05:49:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:41,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 1699 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 05:49:41,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:49:42,928 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2021-12-18 05:49:42,928 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:49:42,928 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 05:49:42,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [482044731] [2021-12-18 05:49:42,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [482044731] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:49:42,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:49:42,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 05:49:42,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125616670] [2021-12-18 05:49:42,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:49:42,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 05:49:42,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 05:49:42,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 05:49:42,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 05:49:42,929 INFO L87 Difference]: Start difference. First operand 3562 states and 4852 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2021-12-18 05:49:44,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:49:44,185 INFO L93 Difference]: Finished difference Result 8409 states and 11791 transitions. [2021-12-18 05:49:44,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 05:49:44,185 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 207 [2021-12-18 05:49:44,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:49:44,231 INFO L225 Difference]: With dead ends: 8409 [2021-12-18 05:49:44,231 INFO L226 Difference]: Without dead ends: 4892 [2021-12-18 05:49:44,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 05:49:44,248 INFO L933 BasicCegarLoop]: 914 mSDtfsCounter, 347 mSDsluCounter, 1626 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 2540 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-18 05:49:44,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [368 Valid, 2540 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-18 05:49:44,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4892 states. [2021-12-18 05:49:44,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4892 to 3562. [2021-12-18 05:49:44,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3562 states, 2618 states have (on average 1.317799847211612) internal successors, (3450), 2655 states have internal predecessors, (3450), 682 states have call successors, (682), 250 states have call predecessors, (682), 261 states have return successors, (720), 688 states have call predecessors, (720), 680 states have call successors, (720) [2021-12-18 05:49:44,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3562 states to 3562 states and 4852 transitions. [2021-12-18 05:49:44,414 INFO L78 Accepts]: Start accepts. Automaton has 3562 states and 4852 transitions. Word has length 207 [2021-12-18 05:49:44,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:49:44,414 INFO L470 AbstractCegarLoop]: Abstraction has 3562 states and 4852 transitions. [2021-12-18 05:49:44,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2021-12-18 05:49:44,415 INFO L276 IsEmpty]: Start isEmpty. Operand 3562 states and 4852 transitions. [2021-12-18 05:49:44,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-12-18 05:49:44,420 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:49:44,421 INFO L514 BasicCegarLoop]: trace histogram [12, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:49:44,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-12-18 05:49:44,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:49:44,640 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:49:44,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:49:44,640 INFO L85 PathProgramCache]: Analyzing trace with hash -2065114343, now seen corresponding path program 1 times [2021-12-18 05:49:44,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:49:44,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [161312136] [2021-12-18 05:49:44,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:49:44,642 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:49:44,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:49:44,643 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 05:49:44,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-12-18 05:49:56,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-18 05:49:56,321 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-18 05:50:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-18 05:50:40,068 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-12-18 05:50:40,069 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-18 05:50:40,069 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-18 05:50:40,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-12-18 05:50:40,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:50:40,294 INFO L732 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-12-18 05:50:40,298 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-18 05:50:40,327 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-12-18 05:50:40,330 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-12-18 05:50:40,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 05:50:40 BoogieIcfgContainer [2021-12-18 05:50:40,456 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-18 05:50:40,457 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-18 05:50:40,457 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-18 05:50:40,457 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-18 05:50:40,457 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:45:44" (3/4) ... [2021-12-18 05:50:40,461 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-18 05:50:40,461 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-18 05:50:40,461 INFO L158 Benchmark]: Toolchain (without parser) took 324462.42ms. Allocated memory was 52.4MB in the beginning and 784.3MB in the end (delta: 731.9MB). Free memory was 30.5MB in the beginning and 299.0MB in the end (delta: -268.5MB). Peak memory consumption was 463.3MB. Max. memory is 16.1GB. [2021-12-18 05:50:40,461 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 52.4MB. Free memory was 34.4MB in the beginning and 34.4MB in the end (delta: 38.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-18 05:50:40,461 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1772.04ms. Allocated memory was 52.4MB in the beginning and 222.3MB in the end (delta: 169.9MB). Free memory was 30.3MB in the beginning and 165.7MB in the end (delta: -135.4MB). Peak memory consumption was 63.5MB. Max. memory is 16.1GB. [2021-12-18 05:50:40,462 INFO L158 Benchmark]: Boogie Procedure Inliner took 158.57ms. Allocated memory is still 222.3MB. Free memory was 165.7MB in the beginning and 145.8MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-18 05:50:40,464 INFO L158 Benchmark]: Boogie Preprocessor took 153.43ms. Allocated memory is still 222.3MB. Free memory was 145.8MB in the beginning and 124.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-12-18 05:50:40,464 INFO L158 Benchmark]: RCFGBuilder took 26189.44ms. Allocated memory was 222.3MB in the beginning and 784.3MB in the end (delta: 562.0MB). Free memory was 124.9MB in the beginning and 457.5MB in the end (delta: -332.6MB). Peak memory consumption was 450.7MB. Max. memory is 16.1GB. [2021-12-18 05:50:40,467 INFO L158 Benchmark]: TraceAbstraction took 296177.50ms. Allocated memory is still 784.3MB. Free memory was 456.4MB in the beginning and 299.0MB in the end (delta: 157.4MB). Peak memory consumption was 157.4MB. Max. memory is 16.1GB. [2021-12-18 05:50:40,467 INFO L158 Benchmark]: Witness Printer took 4.06ms. Allocated memory is still 784.3MB. Free memory is still 299.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-18 05:50:40,468 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 52.4MB. Free memory was 34.4MB in the beginning and 34.4MB in the end (delta: 38.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1772.04ms. Allocated memory was 52.4MB in the beginning and 222.3MB in the end (delta: 169.9MB). Free memory was 30.3MB in the beginning and 165.7MB in the end (delta: -135.4MB). Peak memory consumption was 63.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 158.57ms. Allocated memory is still 222.3MB. Free memory was 165.7MB in the beginning and 145.8MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 153.43ms. Allocated memory is still 222.3MB. Free memory was 145.8MB in the beginning and 124.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * RCFGBuilder took 26189.44ms. Allocated memory was 222.3MB in the beginning and 784.3MB in the end (delta: 562.0MB). Free memory was 124.9MB in the beginning and 457.5MB in the end (delta: -332.6MB). Peak memory consumption was 450.7MB. Max. memory is 16.1GB. * TraceAbstraction took 296177.50ms. Allocated memory is still 784.3MB. Free memory was 456.4MB in the beginning and 299.0MB in the end (delta: 157.4MB). Peak memory consumption was 157.4MB. Max. memory is 16.1GB. * Witness Printer took 4.06ms. Allocated memory is still 784.3MB. Free memory is still 299.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 7526]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 6952. Possible FailurePath: [L6261] int ldv_state_variable_3 ; [L6262] int LDV_IN_INTERRUPT = 1; [L6263] int ldv_state_variable_2 ; [L6264] struct atm_vcc *atmtcp_c_dev_ops_group0 ; [L6265] int ref_cnt ; [L6266] struct atm_vcc *atmtcp_v_dev_ops_group1 ; [L6267] struct atm_dev *atmtcp_v_dev_ops_group0 ; [L6268] int ldv_state_variable_1 ; [L6269] int ldv_state_variable_0 ; [L6942-L6944] static struct atmdev_ops atmtcp_v_dev_ops = {& atmtcp_v_dev_close, & atmtcp_v_open, & atmtcp_v_close, & atmtcp_v_ioctl, 0, 0, 0, & atmtcp_v_send, 0, 0, 0, 0, & atmtcp_v_proc, & __this_module}; [L6945-L6946] static struct atmdev_ops atmtcp_c_dev_ops = {0, 0, & atmtcp_c_close, 0, 0, 0, 0, & atmtcp_c_send, 0, 0, 0, 0, 0, 0}; [L6947-L7055] static struct atm_dev atmtcp_control_dev = {(struct atmdev_ops const *)(& atmtcp_c_dev_ops), 0, "atmtcp", 999, 0, 0, 0UL, {0, 0}, {0, 0}, {(unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0}, {(signed char)0, (signed char)0}, {{{0}, {0}, {0}, {0}, {0}}, {{0}, {0}, {0}, {0}, {0}}, {{0}, {0}, {0}, {0}, {0}}}, (char)0, 0, {0}, {{{{{0}}, 3735899821U, 4294967295U, (void *)-1, {0, {0, 0}, "atmtcp_control_dev.lock", 0, 0UL}}}}, 0, 0, {0, 0, {0, {0, 0}, 0, 0, 0, 0, {{0}}, {{{0L}, {0, 0}, 0, {0, {0, 0}, 0, 0, 0UL}}, {{0, 0}, 0UL, 0, 0UL, 0U, 0, 0, 0, {(char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0}, {0, {0, 0}, 0, 0, 0UL}}, 0, 0}, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0}, 0, 0, {{0}, {{{{{0}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}, 0, 0, {0, {0, 0}, 0, 0, 0UL}}, 0, 0, 0, 0, {{0}, (unsigned char)0, (unsigned char)0, (_Bool)0, (_Bool)0, (_Bool)0, (_Bool)0, (_Bool)0, (_Bool)0, (_Bool)0, {{{{{0}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}, {0U, {{{{{{0}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}}, 0, (_Bool)0, (_Bool)0, {{0, 0}, 0UL, 0, 0UL, 0U, 0, 0, 0, {(char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0}, {0, {0, 0}, 0, 0, 0UL}}, 0UL, {{0L}, {0, 0}, 0, {0, {0, 0}, 0, 0, 0UL}}, {{{{{{0}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}, 0, {0}, {0}, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0, 0, 0, 0, 0UL, 0UL, 0UL, 0UL, 0, 0, 0}, 0, 0, 0, 0, 0ULL, 0UL, 0, {0, 0}, 0, 0, {0, 0}, 0, 0, 0U, 0U, {{{{{0}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}, {0, {0, 0}, {{0}}}, 0, 0, 0, 0, (_Bool)0, (_Bool)0}, {0, 0}}; [L7212] static struct atm_ioctl atmtcp_ioctl_ops = {& __this_module, & atmtcp_ioctl, {0, 0}}; [L7228] int ldv_retval_0 ; [L7229] int ldv_retval_1 ; [L7565] int ldv_module_refcounter = 1; VAL [__this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7255] unsigned long ldvarg1 ; [L7256] struct socket *ldvarg0 ; [L7257] void *tmp ; [L7258] unsigned int ldvarg2 ; [L7259] loff_t *ldvarg7 ; [L7260] void *tmp___0 ; [L7261] void *ldvarg4 ; [L7262] void *tmp___1 ; [L7263] struct sk_buff *ldvarg3 ; [L7264] void *tmp___2 ; [L7265] unsigned int ldvarg5 ; [L7266] char *ldvarg6 ; [L7267] void *tmp___3 ; [L7268] struct sk_buff *ldvarg8 ; [L7269] void *tmp___4 ; [L7270] int tmp___5 ; [L7271] int tmp___6 ; [L7272] int tmp___7 ; [L7273] int tmp___8 ; [L7274] int tmp___9 ; VAL [__this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg1={4611686019501129742:0}, ldvarg5={36046389205008390:0}, ref_cnt=0] [L7276] CALL, EXPR ldv_init_zalloc(48UL) VAL [\old(size)=48, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6215] void *p ; [L6216] void *tmp ; [L6218] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=48, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={35184372088852:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, size=48] [L6218] tmp = calloc(1UL, size) [L6219] p = tmp VAL [\old(size)=48, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={35184372088852:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={35184372088852:0}, ref_cnt=0, size=48, tmp={35184372088852:0}] [L6220] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6177] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cond=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6220] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=48, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={35184372088852:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={35184372088852:0}, ref_cnt=0, size=48, tmp={35184372088852:0}] [L6221] return (p); VAL [\old(size)=48, \result={35184372088852:0}, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={35184372088852:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={35184372088852:0}, ref_cnt=0, size=48, tmp={35184372088852:0}] [L7276] RET, EXPR ldv_init_zalloc(48UL) VAL [__this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_init_zalloc(48UL)={35184372088852:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg1={4611686019501129742:0}, ldvarg5={36046389205008390:0}, ref_cnt=0] [L7276] tmp = ldv_init_zalloc(48UL) [L7277] ldvarg0 = (struct socket *)tmp VAL [__this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={35184372088852:0}, ldvarg1={4611686019501129742:0}, ldvarg5={36046389205008390:0}, ref_cnt=0, tmp={35184372088852:0}] [L7278] CALL, EXPR ldv_init_zalloc(8UL) VAL [\old(size)=8, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6215] void *p ; [L6216] void *tmp ; [L6218] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=8, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={140737555465242:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, size=8] [L6218] tmp = calloc(1UL, size) [L6219] p = tmp VAL [\old(size)=8, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={140737555465242:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={140737555465242:0}, ref_cnt=0, size=8, tmp={140737555465242:0}] [L6220] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6177] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cond=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6220] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=8, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={140737555465242:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={140737555465242:0}, ref_cnt=0, size=8, tmp={140737555465242:0}] [L6221] return (p); VAL [\old(size)=8, \result={140737555465242:0}, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={140737555465242:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={140737555465242:0}, ref_cnt=0, size=8, tmp={140737555465242:0}] [L7278] RET, EXPR ldv_init_zalloc(8UL) VAL [__this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_init_zalloc(8UL)={140737555465242:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={35184372088852:0}, ldvarg1={4611686019501129742:0}, ldvarg5={36046389205008390:0}, ref_cnt=0, tmp={35184372088852:0}] [L7278] tmp___0 = ldv_init_zalloc(8UL) [L7279] ldvarg7 = (loff_t *)tmp___0 VAL [__this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={35184372088852:0}, ldvarg1={4611686019501129742:0}, ldvarg5={36046389205008390:0}, ldvarg7={140737555465242:0}, ref_cnt=0, tmp={35184372088852:0}, tmp___0={140737555465242:0}] [L7280] CALL, EXPR ldv_init_zalloc(1UL) VAL [\old(size)=1, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6215] void *p ; [L6216] void *tmp ; [L6218] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=1, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={23:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, size=1] [L6218] tmp = calloc(1UL, size) [L6219] p = tmp VAL [\old(size)=1, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={23:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={23:0}, ref_cnt=0, size=1, tmp={23:0}] [L6220] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6177] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cond=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6220] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=1, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={23:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={23:0}, ref_cnt=0, size=1, tmp={23:0}] [L6221] return (p); VAL [\old(size)=1, \result={23:0}, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={23:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={23:0}, ref_cnt=0, size=1, tmp={23:0}] [L7280] RET, EXPR ldv_init_zalloc(1UL) VAL [__this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_init_zalloc(1UL)={23:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={35184372088852:0}, ldvarg1={4611686019501129742:0}, ldvarg5={36046389205008390:0}, ldvarg7={140737555465242:0}, ref_cnt=0, tmp={35184372088852:0}, tmp___0={140737555465242:0}] [L7280] tmp___1 = ldv_init_zalloc(1UL) [L7281] ldvarg4 = tmp___1 VAL [__this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={35184372088852:0}, ldvarg1={4611686019501129742:0}, ldvarg4={23:0}, ldvarg5={36046389205008390:0}, ldvarg7={140737555465242:0}, ref_cnt=0, tmp={35184372088852:0}, tmp___0={140737555465242:0}, tmp___1={23:0}] [L7282] CALL, EXPR ldv_init_zalloc(232UL) VAL [\old(size)=232, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6215] void *p ; [L6216] void *tmp ; [L6218] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=232, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={19:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, size=232] [L6218] tmp = calloc(1UL, size) [L6219] p = tmp VAL [\old(size)=232, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={19:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={19:0}, ref_cnt=0, size=232, tmp={19:0}] [L6220] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6177] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cond=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6220] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=232, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={19:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={19:0}, ref_cnt=0, size=232, tmp={19:0}] [L6221] return (p); VAL [\old(size)=232, \result={19:0}, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={19:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={19:0}, ref_cnt=0, size=232, tmp={19:0}] [L7282] RET, EXPR ldv_init_zalloc(232UL) VAL [__this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_init_zalloc(232UL)={19:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={35184372088852:0}, ldvarg1={4611686019501129742:0}, ldvarg4={23:0}, ldvarg5={36046389205008390:0}, ldvarg7={140737555465242:0}, ref_cnt=0, tmp={35184372088852:0}, tmp___0={140737555465242:0}, tmp___1={23:0}] [L7282] tmp___2 = ldv_init_zalloc(232UL) [L7283] ldvarg3 = (struct sk_buff *)tmp___2 VAL [__this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={35184372088852:0}, ldvarg1={4611686019501129742:0}, ldvarg3={19:0}, ldvarg4={23:0}, ldvarg5={36046389205008390:0}, ldvarg7={140737555465242:0}, ref_cnt=0, tmp={35184372088852:0}, tmp___0={140737555465242:0}, tmp___1={23:0}, tmp___2={19:0}] [L7284] CALL, EXPR ldv_init_zalloc(1UL) VAL [\old(size)=1, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6215] void *p ; [L6216] void *tmp ; [L6218] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=1, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={140737555464223:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, size=1] [L6218] tmp = calloc(1UL, size) [L6219] p = tmp VAL [\old(size)=1, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={140737555464223:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={140737555464223:0}, ref_cnt=0, size=1, tmp={140737555464223:0}] [L6220] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6177] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cond=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6220] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=1, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={140737555464223:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={140737555464223:0}, ref_cnt=0, size=1, tmp={140737555464223:0}] [L6221] return (p); VAL [\old(size)=1, \result={140737555464223:0}, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={140737555464223:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={140737555464223:0}, ref_cnt=0, size=1, tmp={140737555464223:0}] [L7284] RET, EXPR ldv_init_zalloc(1UL) VAL [__this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_init_zalloc(1UL)={140737555464223:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={35184372088852:0}, ldvarg1={4611686019501129742:0}, ldvarg3={19:0}, ldvarg4={23:0}, ldvarg5={36046389205008390:0}, ldvarg7={140737555465242:0}, ref_cnt=0, tmp={35184372088852:0}, tmp___0={140737555465242:0}, tmp___1={23:0}, tmp___2={19:0}] [L7284] tmp___3 = ldv_init_zalloc(1UL) [L7285] ldvarg6 = (char *)tmp___3 VAL [__this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={35184372088852:0}, ldvarg1={4611686019501129742:0}, ldvarg3={19:0}, ldvarg4={23:0}, ldvarg5={36046389205008390:0}, ldvarg6={140737555464223:0}, ldvarg7={140737555465242:0}, ref_cnt=0, tmp={35184372088852:0}, tmp___0={140737555465242:0}, tmp___1={23:0}, tmp___2={19:0}, tmp___3={140737555464223:0}] [L7286] CALL, EXPR ldv_init_zalloc(232UL) VAL [\old(size)=232, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6215] void *p ; [L6216] void *tmp ; [L6218] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=232, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={31:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, size=232] [L6218] tmp = calloc(1UL, size) [L6219] p = tmp VAL [\old(size)=232, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={31:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={31:0}, ref_cnt=0, size=232, tmp={31:0}] [L6220] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6177] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cond=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6220] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=232, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={31:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={31:0}, ref_cnt=0, size=232, tmp={31:0}] [L6221] return (p); VAL [\old(size)=232, \result={31:0}, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={31:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={31:0}, ref_cnt=0, size=232, tmp={31:0}] [L7286] RET, EXPR ldv_init_zalloc(232UL) VAL [__this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_init_zalloc(232UL)={31:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={35184372088852:0}, ldvarg1={4611686019501129742:0}, ldvarg3={19:0}, ldvarg4={23:0}, ldvarg5={36046389205008390:0}, ldvarg6={140737555464223:0}, ldvarg7={140737555465242:0}, ref_cnt=0, tmp={35184372088852:0}, tmp___0={140737555465242:0}, tmp___1={23:0}, tmp___2={19:0}, tmp___3={140737555464223:0}] [L7286] tmp___4 = ldv_init_zalloc(232UL) [L7287] ldvarg8 = (struct sk_buff *)tmp___4 [L7288] FCALL ldv_initialize() [L7289] CALL ldv_memset((void *)(& ldvarg1), 0, 8UL) VAL [\old(c)=0, \old(n)=8, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, s={4611686019501129742:0}] [L6226] void *tmp ; VAL [\old(c)=0, \old(n)=8, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, n=8, ref_cnt=0, s={4611686019501129742:0}, s={4611686019501129742:0}] [L6228] EXPR, FCALL memset(s, c, n) VAL [\old(c)=0, \old(n)=8, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, memset(s, c, n)={4611686019501129742:0}, n=8, ref_cnt=0, s={4611686019501129742:0}, s={4611686019501129742:0}] [L6228] tmp = memset(s, c, n) [L6229] return (tmp); VAL [\old(c)=0, \old(n)=8, \result={4611686019501129742:0}, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, n=8, ref_cnt=0, s={4611686019501129742:0}, s={4611686019501129742:0}, tmp={4611686019501129742:0}] [L7289] RET ldv_memset((void *)(& ldvarg1), 0, 8UL) VAL [__this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_memset((void *)(& ldvarg1), 0, 8UL)={4611686019501129742:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={35184372088852:0}, ldvarg1={4611686019501129742:0}, ldvarg3={19:0}, ldvarg4={23:0}, ldvarg5={36046389205008390:0}, ldvarg6={140737555464223:0}, ldvarg7={140737555465242:0}, ldvarg8={31:0}, ref_cnt=0, tmp={35184372088852:0}, tmp___0={140737555465242:0}, tmp___1={23:0}, tmp___2={19:0}, tmp___3={140737555464223:0}, tmp___4={31:0}] [L7290] ldvarg2 = __VERIFIER_nondet_uint () [L7291] CALL ldv_memset((void *)(& ldvarg5), 0, 4UL) VAL [\old(c)=0, \old(n)=4, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, s={36046389205008390:0}] [L6226] void *tmp ; VAL [\old(c)=0, \old(n)=4, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, n=4, ref_cnt=0, s={36046389205008390:0}, s={36046389205008390:0}] [L6228] EXPR, FCALL memset(s, c, n) VAL [\old(c)=0, \old(n)=4, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, memset(s, c, n)={36046389205008390:0}, n=4, ref_cnt=0, s={36046389205008390:0}, s={36046389205008390:0}] [L6228] tmp = memset(s, c, n) [L6229] return (tmp); VAL [\old(c)=0, \old(n)=4, \result={36046389205008390:0}, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, n=4, ref_cnt=0, s={36046389205008390:0}, s={36046389205008390:0}, tmp={36046389205008390:0}] [L7291] RET ldv_memset((void *)(& ldvarg5), 0, 4UL) VAL [__this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_memset((void *)(& ldvarg5), 0, 4UL)={36046389205008390:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={35184372088852:0}, ldvarg1={4611686019501129742:0}, ldvarg2=24975, ldvarg3={19:0}, ldvarg4={23:0}, ldvarg5={36046389205008390:0}, ldvarg6={140737555464223:0}, ldvarg7={140737555465242:0}, ldvarg8={31:0}, ref_cnt=0, tmp={35184372088852:0}, tmp___0={140737555465242:0}, tmp___1={23:0}, tmp___2={19:0}, tmp___3={140737555464223:0}, tmp___4={31:0}] [L7292] ldv_state_variable_1 = 0 [L7293] ref_cnt = 0 [L7294] ldv_state_variable_0 = 1 [L7295] ldv_state_variable_3 = 0 [L7296] ldv_state_variable_2 = 0 VAL [__this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={35184372088852:0}, ldvarg1={4611686019501129742:0}, ldvarg2=24975, ldvarg3={19:0}, ldvarg4={23:0}, ldvarg5={36046389205008390:0}, ldvarg6={140737555464223:0}, ldvarg7={140737555465242:0}, ldvarg8={31:0}, ref_cnt=0, tmp={35184372088852:0}, tmp___0={140737555465242:0}, tmp___1={23:0}, tmp___2={19:0}, tmp___3={140737555464223:0}, tmp___4={31:0}] [L7298] tmp___5 = __VERIFIER_nondet_int() [L7300] case 0: [L7318] case 1: VAL [__this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={35184372088852:0}, ldvarg1={4611686019501129742:0}, ldvarg2=24975, ldvarg3={19:0}, ldvarg4={23:0}, ldvarg5={36046389205008390:0}, ldvarg6={140737555464223:0}, ldvarg7={140737555465242:0}, ldvarg8={31:0}, ref_cnt=0, tmp={35184372088852:0}, tmp___0={140737555465242:0}, tmp___1={23:0}, tmp___2={19:0}, tmp___3={140737555464223:0}, tmp___4={31:0}, tmp___5=1] [L7319] COND TRUE ldv_state_variable_0 != 0 [L7320] tmp___7 = __VERIFIER_nondet_int() [L7322] case 0: [L7330] case 1: VAL [__this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={35184372088852:0}, ldvarg1={4611686019501129742:0}, ldvarg2=24975, ldvarg3={19:0}, ldvarg4={23:0}, ldvarg5={36046389205008390:0}, ldvarg6={140737555464223:0}, ldvarg7={140737555465242:0}, ldvarg8={31:0}, ref_cnt=0, tmp={35184372088852:0}, tmp___0={140737555465242:0}, tmp___1={23:0}, tmp___2={19:0}, tmp___3={140737555464223:0}, tmp___4={31:0}, tmp___5=1, tmp___7=1] [L7331] COND TRUE ldv_state_variable_0 == 1 [L7332] CALL, EXPR atmtcp_init() [L7216] FCALL register_atm_ioctl(& atmtcp_ioctl_ops) [L7217] return (0); VAL [\result=0, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7332] RET, EXPR atmtcp_init() [L7332] ldv_retval_0 = atmtcp_init() [L7333] COND TRUE ldv_retval_0 == 0 [L7334] ldv_state_variable_0 = 3 [L7335] ldv_state_variable_1 = 1 VAL [__this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={35184372088852:0}, ldvarg1={4611686019501129742:0}, ldvarg2=24975, ldvarg3={19:0}, ldvarg4={23:0}, ldvarg5={36046389205008390:0}, ldvarg6={140737555464223:0}, ldvarg7={140737555465242:0}, ldvarg8={31:0}, ref_cnt=0, tmp={35184372088852:0}, tmp___0={140737555465242:0}, tmp___1={23:0}, tmp___2={19:0}, tmp___3={140737555464223:0}, tmp___4={31:0}, tmp___5=1, tmp___7=1] [L7338] COND FALSE !(ldv_retval_0 != 0) VAL [__this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={35184372088852:0}, ldvarg1={4611686019501129742:0}, ldvarg2=24975, ldvarg3={19:0}, ldvarg4={23:0}, ldvarg5={36046389205008390:0}, ldvarg6={140737555464223:0}, ldvarg7={140737555465242:0}, ldvarg8={31:0}, ref_cnt=0, tmp={35184372088852:0}, tmp___0={140737555465242:0}, tmp___1={23:0}, tmp___2={19:0}, tmp___3={140737555464223:0}, tmp___4={31:0}, tmp___5=1, tmp___7=1] [L7298] tmp___5 = __VERIFIER_nondet_int() [L7300] case 0: VAL [__this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={35184372088852:0}, ldvarg1={4611686019501129742:0}, ldvarg2=24975, ldvarg3={19:0}, ldvarg4={23:0}, ldvarg5={36046389205008390:0}, ldvarg6={140737555464223:0}, ldvarg7={140737555465242:0}, ldvarg8={31:0}, ref_cnt=0, tmp={35184372088852:0}, tmp___0={140737555465242:0}, tmp___1={23:0}, tmp___2={19:0}, tmp___3={140737555464223:0}, tmp___4={31:0}, tmp___5=0, tmp___7=1] [L7301] COND TRUE ldv_state_variable_1 != 0 [L7302] tmp___6 = __VERIFIER_nondet_int() [L7304] case 0: VAL [__this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={35184372088852:0}, ldvarg1={4611686019501129742:0}, ldvarg2=24975, ldvarg3={19:0}, ldvarg4={23:0}, ldvarg5={36046389205008390:0}, ldvarg6={140737555464223:0}, ldvarg7={140737555465242:0}, ldvarg8={31:0}, ref_cnt=0, tmp={35184372088852:0}, tmp___0={140737555465242:0}, tmp___1={23:0}, tmp___2={19:0}, tmp___3={140737555464223:0}, tmp___4={31:0}, tmp___5=0, tmp___6=0, tmp___7=1] [L7305] COND TRUE ldv_state_variable_1 == 1 [L7306] EXPR \read(ldvarg1) [L7306] CALL atmtcp_ioctl(ldvarg0, ldvarg2, ldvarg1) [L7169] int err ; [L7170] struct atm_vcc *vcc ; [L7171] struct atm_vcc *tmp ; [L7172] bool tmp___0 ; [L7173] int tmp___1 ; [L7175] err = 0 [L7176] CALL, EXPR ATM_SD(sock) [L6342] struct atm_vcc *tmp ; [L6344] EXPR sock->sk VAL [__this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, sock={35184372088852:0}, sock={35184372088852:0}, sock->sk={5188146777173786627:4611686022722879491}] [L6344] CALL, EXPR atm_sk(sock->sk) VAL [__this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, sk={5188146777173786627:4611686022722879491}] [L6337] return ((struct atm_vcc *)sk); VAL [\result={5188146777173786627:4611686022722879491}, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, sk={5188146777173786627:4611686022722879491}, sk={5188146777173786627:4611686022722879491}] [L6344] RET, EXPR atm_sk(sock->sk) VAL [__this_module={35184372088852:7}, atm_sk(sock->sk)={5188146777173786627:4611686022722879491}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, sock={35184372088852:0}, sock={35184372088852:0}, sock->sk={5188146777173786627:4611686022722879491}] [L6344] tmp = atm_sk(sock->sk) [L6345] return (tmp); VAL [\result={5188146777173786627:4611686022722879491}, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, sock={35184372088852:0}, sock={35184372088852:0}, tmp={5188146777173786627:4611686022722879491}] [L7176] RET, EXPR ATM_SD(sock) [L7176] tmp = ATM_SD(sock) [L7177] vcc = tmp VAL [\old(arg)=0, \old(cmd)=24975, __this_module={35184372088852:7}, arg=0, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cmd=24975, err=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, sock={35184372088852:0}, sock={35184372088852:0}, tmp={5188146777173786627:4611686022722879491}, vcc={5188146777173786627:4611686022722879491}] [L7178] COND FALSE !((cmd != 24960U && cmd != 24974U) && cmd != 24975U) [L7182] CALL, EXPR capable(12) [L7680] return __VERIFIER_nondet_bool(); [L7182] RET, EXPR capable(12) [L7182] tmp___0 = capable(12) [L7183] COND TRUE \read(tmp___0) [L7184] tmp___1 = 0 VAL [\old(arg)=0, \old(cmd)=24975, __this_module={35184372088852:7}, arg=0, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cmd=24975, err=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, sock={35184372088852:0}, sock={35184372088852:0}, tmp={5188146777173786627:4611686022722879491}, tmp___0=128, tmp___1=0, vcc={5188146777173786627:4611686022722879491}] [L7188] COND FALSE !(\read(tmp___1)) [L7193] case 24960U: [L7201] case 24974U: [L7204] case 24975U: [L7205] CALL atmtcp_remove_persistent((int )arg) [L7138] struct atm_dev *dev ; [L7139] struct atmtcp_dev_data *dev_data ; VAL [\old(itf)=0, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, itf=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7141] CALL, EXPR atm_dev_lookup(itf) VAL [\old(arg0)=null, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7669] CALL, EXPR ldv_malloc(sizeof(struct atm_dev)) VAL [\old(size)=1598, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6181] void *p ; [L6182] void *tmp ; [L6183] int tmp___0 ; [L6185] tmp___0 = __VERIFIER_nondet_int() [L6186] COND FALSE !(tmp___0 != 0) [L6189] tmp = malloc(size) [L6190] p = tmp VAL [\old(size)=1598, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, p={8239:0}, ref_cnt=0, size=1598, tmp={8239:0}, tmp___0=0] [L6191] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6177] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cond=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6191] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=1598, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, p={8239:0}, ref_cnt=0, size=1598, tmp={8239:0}, tmp___0=0] [L6192] return (p); VAL [\old(size)=1598, \result={8239:0}, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, p={8239:0}, ref_cnt=0, size=1598, tmp={8239:0}, tmp___0=0] [L7669] RET, EXPR ldv_malloc(sizeof(struct atm_dev)) VAL [\old(arg0)=null, __this_module={35184372088852:7}, arg0=null, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct atm_dev))={8239:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7669] return ldv_malloc(sizeof(struct atm_dev)); [L7141] RET, EXPR atm_dev_lookup(itf) VAL [\old(itf)=0, __this_module={35184372088852:7}, atm_dev_lookup(itf)={8239:0}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, itf=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7141] dev = atm_dev_lookup(itf) [L7142] COND FALSE !((unsigned long )dev == (unsigned long )((struct atm_dev *)0)) [L7146] EXPR dev->ops VAL [\old(itf)=0, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev={8239:0}, dev->ops={35184372088852:0}, itf=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7146] COND TRUE (unsigned long )dev->ops != (unsigned long )((struct atmdev_ops const *)(& atmtcp_v_dev_ops)) [L7147] CALL atm_dev_put(dev) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6377] int tmp ; [L6378] long tmp___0 ; [L6379] int tmp___1 ; [L6381] CALL, EXPR atomic_dec_and_test(& dev->refcnt) [L6126] char c ; [L6130] return ((int )((signed char )c) != 0); VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, \result=1, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=2, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, v={8239:157}, v={8239:157}] [L6381] RET, EXPR atomic_dec_and_test(& dev->refcnt) [L6381] tmp___1 = atomic_dec_and_test(& dev->refcnt) [L6382] COND TRUE tmp___1 != 0 [L6383] CALL, EXPR constant_test_bit(0L, (unsigned long const volatile *)(& dev->flags)) [L6045] EXPR addr + (unsigned long )(nr >> 6) [L6045] return ((int )((unsigned long )*(addr + (unsigned long )(nr >> 6)) >> ((int )nr & 63)) & 1); [L6383] RET, EXPR constant_test_bit(0L, (unsigned long const volatile *)(& dev->flags)) [L6383] tmp = constant_test_bit(0L, (unsigned long const volatile *)(& dev->flags)) [L6384] CALL, EXPR ldv__builtin_expect(tmp == 0, 0L) VAL [\old(c)=0, \old(exp)=0, \old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6258] return (exp); VAL [\old(c)=0, \old(exp)=0, \old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, \result=0, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=0, exp=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6384] RET, EXPR ldv__builtin_expect(tmp == 0, 0L) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev={8239:0}, dev={8239:0}, ldv__builtin_expect(tmp == 0, 0L)=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, tmp=1, tmp___1=1] [L6384] tmp___0 = ldv__builtin_expect(tmp == 0, 0L) [L6385] COND FALSE !(tmp___0 != 0L) [L6392] EXPR dev->ops [L6392] EXPR (dev->ops)->dev_close VAL [(dev->ops)->dev_close={9223372036854775806:7}, \old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev={8239:0}, dev={8239:0}, dev->ops={35184372088852:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, tmp=1, tmp___0=0, tmp___1=1] [L6392] COND TRUE (unsigned long )(dev->ops)->dev_close != (unsigned long )((void (* )(struct atm_dev * ))0) [L6393] EXPR dev->ops [L6393] EXPR (dev->ops)->dev_close [L6393] CALL (*((dev->ops)->dev_close))(dev) [L6824] struct atm_dev *atmtcp_dev ; [L6825] struct atmtcp_dev_data *dev_data ; [L6827] EXPR vcc->dev_data [L6827] atmtcp_dev = (struct atm_dev *)vcc->dev_data [L6828] EXPR atmtcp_dev->dev_data [L6828] dev_data = (struct atmtcp_dev_data *)atmtcp_dev->dev_data [L6829] dev_data->vcc = (struct atm_vcc *)0 [L6830] EXPR dev_data->persist VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_dev={-4611685966887616538:-4611685966887616538}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev_data={-4611686018427387890:17}, dev_data->persist=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, vcc={8239:0}, vcc={8239:0}] [L6830] COND FALSE !(dev_data->persist != 0) [L6834] atmtcp_dev->dev_data = (void *)0 VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_dev={-4611685966887616538:-4611685966887616538}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev_data={-4611686018427387890:17}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, vcc={8239:0}, vcc={8239:0}] [L6835] CALL kfree((void const *)dev_data) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-4611686018427387890:17}, ref_cnt=0] [L6835] RET kfree((void const *)dev_data) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_dev={-4611685966887616538:-4611685966887616538}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev_data={-4611686018427387890:17}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, vcc={8239:0}, vcc={8239:0}] [L6836] CALL ldv_atm_dev_deregister_5(atmtcp_dev) [L7476] FCALL atm_dev_deregister(ldv_func_arg1) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, ldv_func_arg1={-4611685966887616538:-4611685966887616538}, ldv_func_arg1={-4611685966887616538:-4611685966887616538}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7477] ldv_state_variable_3 = 0 VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, ldv_func_arg1={-4611685966887616538:-4611685966887616538}, ldv_func_arg1={-4611685966887616538:-4611685966887616538}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6836] RET ldv_atm_dev_deregister_5(atmtcp_dev) [L6837] vcc->dev_data = (void *)0 [L6838] CALL ldv_module_put_6(& __this_module) [L7484] CALL ldv_module_put(ldv_func_arg1) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, module={35184372088852:7}, ref_cnt=0] [L7596] COND TRUE (unsigned long )module != (unsigned long )((struct module *)0) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, module={35184372088852:7}, module={35184372088852:7}, ref_cnt=0] [L7597] COND TRUE ldv_module_refcounter <= 1 VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, module={35184372088852:7}, module={35184372088852:7}, ref_cnt=0] [L7598] CALL ldv_error() VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7526] reach_error() VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={35184372088852:7}, atmtcp_c_dev_ops={13:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={14:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={12:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 629 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 295.9s, OverallIterations: 19, TraceHistogramMax: 12, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 84.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 9 mSolverCounterUnknown, 3949 SdHoareTripleChecker+Valid, 64.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3886 mSDsluCounter, 80915 SdHoareTripleChecker+Invalid, 61.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 66341 mSDsCounter, 290 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1536 IncrementalHoareTripleChecker+Invalid, 1835 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 290 mSolverCounterUnsat, 14574 mSDtfsCounter, 1536 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4371 GetRequests, 4194 SyntacticMatches, 0 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 81.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3562occurred in iteration=17, InterpolantAutomatonStates: 153, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 18 MinimizatonAttempts, 3485 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 24.5s SatisfiabilityAnalysisTime, 132.2s InterpolantComputationTime, 3348 NumberOfCodeBlocks, 2839 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 4324 ConstructedInterpolants, 0 QuantifiedInterpolants, 5517 SizeOfPredicates, 31 NumberOfNonLiveVariables, 26329 ConjunctsInSsa, 123 ConjunctsInUnsatCore, 25 InterpolantComputations, 11 PerfectInterpolantSequences, 6376/6745 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-18 05:50:40,701 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-12-18 05:50:40,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample