/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 22:23:23,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 22:23:23,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 22:23:23,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 22:23:23,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 22:23:23,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 22:23:23,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 22:23:23,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 22:23:23,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 22:23:23,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 22:23:23,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 22:23:23,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 22:23:23,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 22:23:23,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 22:23:23,427 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 22:23:23,428 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 22:23:23,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 22:23:23,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 22:23:23,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 22:23:23,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 22:23:23,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 22:23:23,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 22:23:23,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 22:23:23,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 22:23:23,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 22:23:23,453 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 22:23:23,453 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 22:23:23,456 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 22:23:23,456 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 22:23:23,465 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 22:23:23,465 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 22:23:23,466 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 22:23:23,467 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 22:23:23,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 22:23:23,471 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 22:23:23,472 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 22:23:23,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 22:23:23,473 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 22:23:23,473 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 22:23:23,474 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 22:23:23,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 22:23:23,476 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-08-21 22:23:23,516 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 22:23:23,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 22:23:23,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 22:23:23,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 22:23:23,519 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 22:23:23,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 22:23:23,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 22:23:23,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 22:23:23,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 22:23:23,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 22:23:23,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 22:23:23,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 22:23:23,522 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 22:23:23,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 22:23:23,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 22:23:23,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 22:23:23,523 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 22:23:23,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 22:23:23,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 22:23:23,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 22:23:23,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 22:23:23,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 22:23:23,524 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 22:23:23,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 22:23:23,524 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 22:23:23,525 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 22:23:23,525 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-21 22:23:23,525 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-08-21 22:23:23,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 22:23:23,877 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 22:23:23,882 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 22:23:23,884 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 22:23:23,884 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 22:23:23,885 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2020-08-21 22:23:23,961 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e84d93a3b/7182dec2c6344ebcb5e1b21c44b83b5c/FLAGb34fbcadf [2020-08-21 22:23:24,648 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 22:23:24,648 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2020-08-21 22:23:24,684 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e84d93a3b/7182dec2c6344ebcb5e1b21c44b83b5c/FLAGb34fbcadf [2020-08-21 22:23:24,779 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e84d93a3b/7182dec2c6344ebcb5e1b21c44b83b5c [2020-08-21 22:23:24,787 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 22:23:24,789 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 22:23:24,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 22:23:24,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 22:23:24,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 22:23:24,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 10:23:24" (1/1) ... [2020-08-21 22:23:24,798 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31bd816e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:23:24, skipping insertion in model container [2020-08-21 22:23:24,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 10:23:24" (1/1) ... [2020-08-21 22:23:24,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 22:23:24,914 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 22:23:25,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 22:23:25,937 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 22:23:26,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 22:23:26,244 INFO L208 MainTranslator]: Completed translation [2020-08-21 22:23:26,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:23:26 WrapperNode [2020-08-21 22:23:26,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 22:23:26,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 22:23:26,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 22:23:26,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 22:23:26,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:23:26" (1/1) ... [2020-08-21 22:23:26,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:23:26" (1/1) ... [2020-08-21 22:23:26,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:23:26" (1/1) ... [2020-08-21 22:23:26,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:23:26" (1/1) ... [2020-08-21 22:23:26,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:23:26" (1/1) ... [2020-08-21 22:23:26,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:23:26" (1/1) ... [2020-08-21 22:23:26,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:23:26" (1/1) ... [2020-08-21 22:23:26,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 22:23:26,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 22:23:26,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 22:23:26,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 22:23:26,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:23:26" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 22:23:26,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 22:23:26,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 22:23:26,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-08-21 22:23:26,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-08-21 22:23:26,417 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock [2020-08-21 22:23:26,417 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_sk [2020-08-21 22:23:26,418 INFO L138 BoogieDeclarations]: Found implementation of procedure register_pppox_proto [2020-08-21 22:23:26,418 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pppox_proto [2020-08-21 22:23:26,418 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_unbind_sock [2020-08-21 22:23:26,418 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_ioctl [2020-08-21 22:23:26,418 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_create [2020-08-21 22:23:26,418 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_init [2020-08-21 22:23:26,419 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_exit [2020-08-21 22:23:26,419 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 22:23:26,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2020-08-21 22:23:26,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2020-08-21 22:23:26,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2020-08-21 22:23:26,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2020-08-21 22:23:26,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2020-08-21 22:23:26,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2020-08-21 22:23:26,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-08-21 22:23:26,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2020-08-21 22:23:26,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2020-08-21 22:23:26,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2020-08-21 22:23:26,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-08-21 22:23:26,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_int [2020-08-21 22:23:26,421 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock_nested [2020-08-21 22:23:26,422 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2020-08-21 22:23:26,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_index [2020-08-21 22:23:26,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2020-08-21 22:23:26,422 INFO L138 BoogieDeclarations]: Found implementation of procedure release_sock [2020-08-21 22:23:26,422 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_register [2020-08-21 22:23:26,422 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_unregister [2020-08-21 22:23:26,423 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-21 22:23:26,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 22:23:26,423 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2020-08-21 22:23:26,423 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2020-08-21 22:23:26,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2020-08-21 22:23:26,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2020-08-21 22:23:26,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2020-08-21 22:23:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2020-08-21 22:23:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2020-08-21 22:23:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2020-08-21 22:23:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2020-08-21 22:23:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure sock_register [2020-08-21 22:23:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure sock_unregister [2020-08-21 22:23:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2020-08-21 22:23:26,425 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_index [2020-08-21 22:23:26,425 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock_nested [2020-08-21 22:23:26,425 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock [2020-08-21 22:23:26,425 INFO L130 BoogieDeclarations]: Found specification of procedure release_sock [2020-08-21 22:23:26,425 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_sk [2020-08-21 22:23:26,425 INFO L130 BoogieDeclarations]: Found specification of procedure register_pppox_proto [2020-08-21 22:23:26,425 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pppox_proto [2020-08-21 22:23:26,425 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_unbind_sock [2020-08-21 22:23:26,426 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_ioctl [2020-08-21 22:23:26,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 22:23:26,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 22:23:26,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 22:23:26,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 22:23:26,426 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-08-21 22:23:26,427 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_create [2020-08-21 22:23:26,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 22:23:26,427 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-08-21 22:23:26,427 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_init [2020-08-21 22:23:26,427 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_exit [2020-08-21 22:23:26,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-08-21 22:23:26,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-08-21 22:23:26,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 22:23:26,428 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 22:23:26,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2020-08-21 22:23:26,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_int [2020-08-21 22:23:26,428 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 22:23:26,428 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-21 22:23:26,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 22:23:26,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 22:23:26,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-21 22:23:26,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-21 22:23:26,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 22:23:26,795 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-08-21 22:23:26,874 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2020-08-21 22:23:26,874 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2020-08-21 22:23:26,874 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-08-21 22:23:26,875 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-08-21 22:23:26,876 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-08-21 22:23:26,897 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2020-08-21 22:23:26,897 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2020-08-21 22:23:26,971 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2020-08-21 22:23:27,103 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 22:23:27,104 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-21 22:23:27,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 10:23:27 BoogieIcfgContainer [2020-08-21 22:23:27,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 22:23:27,112 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 22:23:27,112 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 22:23:27,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 22:23:27,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 10:23:24" (1/3) ... [2020-08-21 22:23:27,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c88d8bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 10:23:27, skipping insertion in model container [2020-08-21 22:23:27,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:23:26" (2/3) ... [2020-08-21 22:23:27,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c88d8bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 10:23:27, skipping insertion in model container [2020-08-21 22:23:27,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 10:23:27" (3/3) ... [2020-08-21 22:23:27,128 INFO L109 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-pppox.ko.cil.out.i [2020-08-21 22:23:27,147 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 22:23:27,157 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 22:23:27,184 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 22:23:27,236 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 22:23:27,236 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 22:23:27,236 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 22:23:27,236 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 22:23:27,237 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 22:23:27,237 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 22:23:27,238 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 22:23:27,238 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 22:23:27,259 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states. [2020-08-21 22:23:27,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-08-21 22:23:27,265 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:23:27,266 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 22:23:27,267 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:23:27,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:23:27,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1611807670, now seen corresponding path program 1 times [2020-08-21 22:23:27,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:23:27,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [511195981] [2020-08-21 22:23:27,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:23:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:27,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:23:27,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:27,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:23:27,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:27,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:23:27,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:27,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:23:27,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:27,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 22:23:27,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [511195981] [2020-08-21 22:23:27,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 22:23:27,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 22:23:27,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364847653] [2020-08-21 22:23:27,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 22:23:27,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:23:27,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 22:23:27,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-21 22:23:27,794 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 4 states. [2020-08-21 22:23:28,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:23:28,415 INFO L93 Difference]: Finished difference Result 241 states and 297 transitions. [2020-08-21 22:23:28,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 22:23:28,417 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-08-21 22:23:28,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:23:28,433 INFO L225 Difference]: With dead ends: 241 [2020-08-21 22:23:28,433 INFO L226 Difference]: Without dead ends: 153 [2020-08-21 22:23:28,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-21 22:23:28,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-08-21 22:23:28,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 150. [2020-08-21 22:23:28,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-08-21 22:23:28,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 176 transitions. [2020-08-21 22:23:28,603 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 176 transitions. Word has length 24 [2020-08-21 22:23:28,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:23:28,603 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 176 transitions. [2020-08-21 22:23:28,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 22:23:28,604 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 176 transitions. [2020-08-21 22:23:28,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-08-21 22:23:28,607 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:23:28,608 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 22:23:28,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 22:23:28,608 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:23:28,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:23:28,609 INFO L82 PathProgramCache]: Analyzing trace with hash 321457227, now seen corresponding path program 1 times [2020-08-21 22:23:28,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:23:28,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1460520480] [2020-08-21 22:23:28,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:23:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:28,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:23:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:28,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:23:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:28,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:23:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:28,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:23:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:28,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-21 22:23:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:28,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:23:28,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:28,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-21 22:23:28,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:28,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 22:23:28,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1460520480] [2020-08-21 22:23:28,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 22:23:28,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 22:23:28,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297179825] [2020-08-21 22:23:28,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 22:23:28,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:23:28,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 22:23:28,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-21 22:23:28,971 INFO L87 Difference]: Start difference. First operand 150 states and 176 transitions. Second operand 9 states. [2020-08-21 22:23:29,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:23:29,710 INFO L93 Difference]: Finished difference Result 269 states and 321 transitions. [2020-08-21 22:23:29,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 22:23:29,711 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 56 [2020-08-21 22:23:29,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:23:29,714 INFO L225 Difference]: With dead ends: 269 [2020-08-21 22:23:29,715 INFO L226 Difference]: Without dead ends: 139 [2020-08-21 22:23:29,720 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-08-21 22:23:29,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-08-21 22:23:29,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 126. [2020-08-21 22:23:29,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-08-21 22:23:29,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 146 transitions. [2020-08-21 22:23:29,766 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 146 transitions. Word has length 56 [2020-08-21 22:23:29,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:23:29,767 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 146 transitions. [2020-08-21 22:23:29,767 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 22:23:29,767 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 146 transitions. [2020-08-21 22:23:29,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-08-21 22:23:29,772 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:23:29,772 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 22:23:29,772 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 22:23:29,773 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:23:29,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:23:29,773 INFO L82 PathProgramCache]: Analyzing trace with hash 751196711, now seen corresponding path program 1 times [2020-08-21 22:23:29,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:23:29,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [590125715] [2020-08-21 22:23:29,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:23:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:29,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:23:29,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:29,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:23:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:29,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:23:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:29,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:23:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:29,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-21 22:23:29,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:30,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:23:30,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:30,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 22:23:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:30,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-21 22:23:30,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:30,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 22:23:30,049 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [590125715] [2020-08-21 22:23:30,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 22:23:30,050 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 22:23:30,050 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381099712] [2020-08-21 22:23:30,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 22:23:30,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:23:30,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 22:23:30,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-21 22:23:30,052 INFO L87 Difference]: Start difference. First operand 126 states and 146 transitions. Second operand 7 states. [2020-08-21 22:23:30,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:23:30,799 INFO L93 Difference]: Finished difference Result 208 states and 241 transitions. [2020-08-21 22:23:30,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 22:23:30,800 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 62 [2020-08-21 22:23:30,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:23:30,804 INFO L225 Difference]: With dead ends: 208 [2020-08-21 22:23:30,804 INFO L226 Difference]: Without dead ends: 205 [2020-08-21 22:23:30,807 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-08-21 22:23:30,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-08-21 22:23:30,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 190. [2020-08-21 22:23:30,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-08-21 22:23:30,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 224 transitions. [2020-08-21 22:23:30,834 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 224 transitions. Word has length 62 [2020-08-21 22:23:30,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:23:30,835 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 224 transitions. [2020-08-21 22:23:30,835 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 22:23:30,835 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 224 transitions. [2020-08-21 22:23:30,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-08-21 22:23:30,837 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:23:30,837 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-21 22:23:30,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 22:23:30,837 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:23:30,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:23:30,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1928601058, now seen corresponding path program 1 times [2020-08-21 22:23:30,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:23:30,838 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2082235280] [2020-08-21 22:23:30,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:23:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:30,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:23:30,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:30,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:23:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:30,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:23:30,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:30,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:23:30,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:30,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-21 22:23:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:30,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:23:30,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:31,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:23:31,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:31,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 22:23:31,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:31,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 22:23:31,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:31,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:23:31,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:31,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 22:23:31,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2082235280] [2020-08-21 22:23:31,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 22:23:31,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 22:23:31,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554001581] [2020-08-21 22:23:31,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 22:23:31,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:23:31,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 22:23:31,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-21 22:23:31,074 INFO L87 Difference]: Start difference. First operand 190 states and 224 transitions. Second operand 9 states. [2020-08-21 22:23:31,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:23:31,548 INFO L93 Difference]: Finished difference Result 330 states and 390 transitions. [2020-08-21 22:23:31,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 22:23:31,551 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 66 [2020-08-21 22:23:31,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:23:31,554 INFO L225 Difference]: With dead ends: 330 [2020-08-21 22:23:31,554 INFO L226 Difference]: Without dead ends: 193 [2020-08-21 22:23:31,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-21 22:23:31,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-08-21 22:23:31,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 190. [2020-08-21 22:23:31,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-08-21 22:23:31,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 222 transitions. [2020-08-21 22:23:31,589 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 222 transitions. Word has length 66 [2020-08-21 22:23:31,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:23:31,590 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 222 transitions. [2020-08-21 22:23:31,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 22:23:31,590 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 222 transitions. [2020-08-21 22:23:31,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-08-21 22:23:31,597 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:23:31,597 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-21 22:23:31,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 22:23:31,598 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:23:31,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:23:31,598 INFO L82 PathProgramCache]: Analyzing trace with hash -167984647, now seen corresponding path program 1 times [2020-08-21 22:23:31,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:23:31,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1682042163] [2020-08-21 22:23:31,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:23:31,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:31,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:23:31,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:31,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:23:31,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:31,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:23:31,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:31,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:23:31,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:31,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-21 22:23:31,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:31,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:23:31,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:31,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:23:31,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:31,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 22:23:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:31,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-21 22:23:31,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:31,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-21 22:23:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:31,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:23:31,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:31,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-21 22:23:31,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:31,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:23:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:31,940 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 22:23:31,940 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1682042163] [2020-08-21 22:23:31,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 22:23:31,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 22:23:31,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774801463] [2020-08-21 22:23:31,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 22:23:31,943 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:23:31,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 22:23:31,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-21 22:23:31,944 INFO L87 Difference]: Start difference. First operand 190 states and 222 transitions. Second operand 7 states. [2020-08-21 22:23:32,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:23:32,519 INFO L93 Difference]: Finished difference Result 378 states and 453 transitions. [2020-08-21 22:23:32,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 22:23:32,520 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 81 [2020-08-21 22:23:32,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:23:32,522 INFO L225 Difference]: With dead ends: 378 [2020-08-21 22:23:32,522 INFO L226 Difference]: Without dead ends: 208 [2020-08-21 22:23:32,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-08-21 22:23:32,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-08-21 22:23:32,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 196. [2020-08-21 22:23:32,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-08-21 22:23:32,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 228 transitions. [2020-08-21 22:23:32,544 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 228 transitions. Word has length 81 [2020-08-21 22:23:32,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:23:32,545 INFO L479 AbstractCegarLoop]: Abstraction has 196 states and 228 transitions. [2020-08-21 22:23:32,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 22:23:32,545 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 228 transitions. [2020-08-21 22:23:32,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-08-21 22:23:32,546 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:23:32,547 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-21 22:23:32,547 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 22:23:32,547 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:23:32,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:23:32,548 INFO L82 PathProgramCache]: Analyzing trace with hash 275916027, now seen corresponding path program 1 times [2020-08-21 22:23:32,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:23:32,548 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [699064500] [2020-08-21 22:23:32,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:23:32,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:32,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:23:32,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:32,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:23:32,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:32,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:23:32,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:32,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:23:32,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:32,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-21 22:23:32,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:32,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:23:32,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:32,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:23:32,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:32,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 22:23:32,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:32,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-21 22:23:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:32,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-21 22:23:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:33,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:23:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:33,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-21 22:23:33,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:33,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:23:33,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:33,105 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 22:23:33,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [699064500] [2020-08-21 22:23:33,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 22:23:33,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-08-21 22:23:33,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610331811] [2020-08-21 22:23:33,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-21 22:23:33,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:23:33,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-21 22:23:33,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2020-08-21 22:23:33,108 INFO L87 Difference]: Start difference. First operand 196 states and 228 transitions. Second operand 15 states. [2020-08-21 22:23:34,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:23:34,693 INFO L93 Difference]: Finished difference Result 317 states and 360 transitions. [2020-08-21 22:23:34,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-08-21 22:23:34,694 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 81 [2020-08-21 22:23:34,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:23:34,696 INFO L225 Difference]: With dead ends: 317 [2020-08-21 22:23:34,696 INFO L226 Difference]: Without dead ends: 168 [2020-08-21 22:23:34,697 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=113, Invalid=757, Unknown=0, NotChecked=0, Total=870 [2020-08-21 22:23:34,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-08-21 22:23:34,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 148. [2020-08-21 22:23:34,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-08-21 22:23:34,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 166 transitions. [2020-08-21 22:23:34,709 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 166 transitions. Word has length 81 [2020-08-21 22:23:34,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:23:34,710 INFO L479 AbstractCegarLoop]: Abstraction has 148 states and 166 transitions. [2020-08-21 22:23:34,710 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-21 22:23:34,710 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 166 transitions. [2020-08-21 22:23:34,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-08-21 22:23:34,711 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:23:34,711 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-21 22:23:34,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 22:23:34,712 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:23:34,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:23:34,712 INFO L82 PathProgramCache]: Analyzing trace with hash 93135667, now seen corresponding path program 1 times [2020-08-21 22:23:34,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:23:34,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1120424937] [2020-08-21 22:23:34,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:23:34,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:34,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:23:34,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:34,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:23:34,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:34,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:23:34,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:34,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:23:34,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:34,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-21 22:23:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:34,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:23:34,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:34,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:23:34,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:34,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 22:23:34,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:34,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-21 22:23:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:34,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-21 22:23:34,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:34,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:23:34,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:34,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-08-21 22:23:34,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:34,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:23:34,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:34,987 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-08-21 22:23:34,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1120424937] [2020-08-21 22:23:34,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 22:23:34,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 22:23:34,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712738585] [2020-08-21 22:23:34,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 22:23:34,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:23:34,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 22:23:34,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-08-21 22:23:34,989 INFO L87 Difference]: Start difference. First operand 148 states and 166 transitions. Second operand 9 states. [2020-08-21 22:23:35,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:23:35,321 INFO L93 Difference]: Finished difference Result 150 states and 167 transitions. [2020-08-21 22:23:35,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 22:23:35,322 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-08-21 22:23:35,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:23:35,323 INFO L225 Difference]: With dead ends: 150 [2020-08-21 22:23:35,324 INFO L226 Difference]: Without dead ends: 138 [2020-08-21 22:23:35,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-08-21 22:23:35,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-08-21 22:23:35,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2020-08-21 22:23:35,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-08-21 22:23:35,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 155 transitions. [2020-08-21 22:23:35,337 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 155 transitions. Word has length 83 [2020-08-21 22:23:35,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:23:35,338 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 155 transitions. [2020-08-21 22:23:35,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 22:23:35,338 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 155 transitions. [2020-08-21 22:23:35,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-08-21 22:23:35,339 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:23:35,339 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-21 22:23:35,340 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 22:23:35,340 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:23:35,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:23:35,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1587921817, now seen corresponding path program 1 times [2020-08-21 22:23:35,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:23:35,341 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1907117131] [2020-08-21 22:23:35,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:23:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:35,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:23:35,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:35,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:23:35,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:35,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:23:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:35,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:23:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:35,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-21 22:23:35,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:35,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:23:35,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:35,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:23:35,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:35,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 22:23:35,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:35,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-21 22:23:35,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:35,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-21 22:23:35,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:35,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:23:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:35,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-21 22:23:35,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:35,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:23:35,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:35,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 22:23:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:35,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-21 22:23:35,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:23:35,624 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 29 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-08-21 22:23:35,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1907117131] [2020-08-21 22:23:35,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 22:23:35,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 22:23:35,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003201651] [2020-08-21 22:23:35,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 22:23:35,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:23:35,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 22:23:35,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-21 22:23:35,627 INFO L87 Difference]: Start difference. First operand 138 states and 155 transitions. Second operand 7 states. [2020-08-21 22:23:35,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:23:35,926 INFO L93 Difference]: Finished difference Result 138 states and 155 transitions. [2020-08-21 22:23:35,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 22:23:35,929 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 112 [2020-08-21 22:23:35,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:23:35,929 INFO L225 Difference]: With dead ends: 138 [2020-08-21 22:23:35,929 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 22:23:35,930 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-08-21 22:23:35,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 22:23:35,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 22:23:35,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 22:23:35,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 22:23:35,933 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 112 [2020-08-21 22:23:35,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:23:35,933 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 22:23:35,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 22:23:35,933 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 22:23:35,933 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 22:23:35,934 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 22:23:35,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 22:23:36,747 INFO L268 CegarLoopResult]: For program point L4992-2(lines 4989 4998) no Hoare annotation was computed. [2020-08-21 22:23:36,747 INFO L268 CegarLoopResult]: For program point L4992(lines 4992 4995) no Hoare annotation was computed. [2020-08-21 22:23:36,747 INFO L268 CegarLoopResult]: For program point ldv_module_getEXIT(lines 4989 4998) no Hoare annotation was computed. [2020-08-21 22:23:36,747 INFO L268 CegarLoopResult]: For program point ldv_module_getENTRY(lines 4989 4998) no Hoare annotation was computed. [2020-08-21 22:23:36,747 INFO L268 CegarLoopResult]: For program point kfreeEXIT(lines 5114 5116) no Hoare annotation was computed. [2020-08-21 22:23:36,747 INFO L268 CegarLoopResult]: For program point kfreeENTRY(lines 5114 5116) no Hoare annotation was computed. [2020-08-21 22:23:36,748 INFO L268 CegarLoopResult]: For program point kfreeFINAL(lines 5114 5116) no Hoare annotation was computed. [2020-08-21 22:23:36,748 INFO L268 CegarLoopResult]: For program point might_faultFINAL(lines 5093 5095) no Hoare annotation was computed. [2020-08-21 22:23:36,748 INFO L268 CegarLoopResult]: For program point might_faultEXIT(lines 5093 5095) no Hoare annotation was computed. [2020-08-21 22:23:36,748 INFO L268 CegarLoopResult]: For program point lock_sockENTRY(lines 4708 4716) no Hoare annotation was computed. [2020-08-21 22:23:36,748 INFO L268 CegarLoopResult]: For program point lock_sockFINAL(lines 4708 4716) no Hoare annotation was computed. [2020-08-21 22:23:36,748 INFO L268 CegarLoopResult]: For program point L4712(line 4712) no Hoare annotation was computed. [2020-08-21 22:23:36,748 INFO L268 CegarLoopResult]: For program point lock_sockEXIT(lines 4708 4716) no Hoare annotation was computed. [2020-08-21 22:23:36,749 INFO L268 CegarLoopResult]: For program point L4788-1(lines 4783 4859) no Hoare annotation was computed. [2020-08-21 22:23:36,750 INFO L268 CegarLoopResult]: For program point L4788(line 4788) no Hoare annotation was computed. [2020-08-21 22:23:36,750 INFO L268 CegarLoopResult]: For program point L4797(lines 4797 4800) no Hoare annotation was computed. [2020-08-21 22:23:36,751 INFO L268 CegarLoopResult]: For program point L4793(lines 4792 4853) no Hoare annotation was computed. [2020-08-21 22:23:36,751 INFO L268 CegarLoopResult]: For program point pppox_ioctlFINAL(lines 4774 4860) no Hoare annotation was computed. [2020-08-21 22:23:36,751 INFO L268 CegarLoopResult]: For program point L4794(lines 4794 4852) no Hoare annotation was computed. [2020-08-21 22:23:36,751 INFO L268 CegarLoopResult]: For program point L4856(line 4856) no Hoare annotation was computed. [2020-08-21 22:23:36,751 INFO L268 CegarLoopResult]: For program point L4786(line 4786) no Hoare annotation was computed. [2020-08-21 22:23:36,751 INFO L268 CegarLoopResult]: For program point L4786-1(line 4786) no Hoare annotation was computed. [2020-08-21 22:23:36,751 INFO L268 CegarLoopResult]: For program point L4807(lines 4807 4831) no Hoare annotation was computed. [2020-08-21 22:23:36,751 INFO L268 CegarLoopResult]: For program point pppox_ioctlEXIT(lines 4774 4860) no Hoare annotation was computed. [2020-08-21 22:23:36,752 INFO L268 CegarLoopResult]: For program point L4803(line 4803) no Hoare annotation was computed. [2020-08-21 22:23:36,752 INFO L268 CegarLoopResult]: For program point L4803-1(line 4803) no Hoare annotation was computed. [2020-08-21 22:23:36,752 INFO L268 CegarLoopResult]: For program point pppox_ioctlENTRY(lines 4774 4860) no Hoare annotation was computed. [2020-08-21 22:23:36,752 INFO L268 CegarLoopResult]: For program point L4832(lines 4794 4851) no Hoare annotation was computed. [2020-08-21 22:23:36,753 INFO L268 CegarLoopResult]: For program point L4791(lines 4790 4853) no Hoare annotation was computed. [2020-08-21 22:23:36,753 INFO L268 CegarLoopResult]: For program point L4845(line 4845) no Hoare annotation was computed. [2020-08-21 22:23:36,753 INFO L268 CegarLoopResult]: For program point L4845-1(line 4845) no Hoare annotation was computed. [2020-08-21 22:23:36,753 INFO L268 CegarLoopResult]: For program point L4841(lines 4841 4850) no Hoare annotation was computed. [2020-08-21 22:23:36,753 INFO L268 CegarLoopResult]: For program point L4804-1(line 4804) no Hoare annotation was computed. [2020-08-21 22:23:36,754 INFO L268 CegarLoopResult]: For program point L4804(line 4804) no Hoare annotation was computed. [2020-08-21 22:23:36,754 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 4922 4980) no Hoare annotation was computed. [2020-08-21 22:23:36,754 INFO L268 CegarLoopResult]: For program point L4945(lines 4945 4959) no Hoare annotation was computed. [2020-08-21 22:23:36,754 INFO L268 CegarLoopResult]: For program point L4976(line 4976) no Hoare annotation was computed. [2020-08-21 22:23:36,754 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 4922 4980) no Hoare annotation was computed. [2020-08-21 22:23:36,755 INFO L264 CegarLoopResult]: At program point L4972(lines 4930 4979) the Hoare annotation is: (or (= ~ldv_module_refcounter~0 1) (not (= |old(~ldv_module_refcounter~0)| 1))) [2020-08-21 22:23:36,755 INFO L264 CegarLoopResult]: At program point L4966(lines 4930 4979) the Hoare annotation is: (or (= ~ldv_module_refcounter~0 |old(~ldv_module_refcounter~0)|) (not (= |old(~ldv_module_refcounter~0)| 1))) [2020-08-21 22:23:36,755 INFO L264 CegarLoopResult]: At program point L4968(lines 4930 4979) the Hoare annotation is: (or (= ~ldv_module_refcounter~0 1) (not (= |old(~ldv_module_refcounter~0)| 1))) [2020-08-21 22:23:36,755 INFO L264 CegarLoopResult]: At program point L4933(line 4933) the Hoare annotation is: (or (= ~ldv_module_refcounter~0 |old(~ldv_module_refcounter~0)|) (not (= |old(~ldv_module_refcounter~0)| 1))) [2020-08-21 22:23:36,755 INFO L264 CegarLoopResult]: At program point L4933-1(line 4933) the Hoare annotation is: (or (= ~ldv_module_refcounter~0 |old(~ldv_module_refcounter~0)|) (not (= |old(~ldv_module_refcounter~0)| 1))) [2020-08-21 22:23:36,757 INFO L264 CegarLoopResult]: At program point L4960(lines 4930 4979) the Hoare annotation is: (or (= ~ldv_module_refcounter~0 |old(~ldv_module_refcounter~0)|) (not (= |old(~ldv_module_refcounter~0)| 1))) [2020-08-21 22:23:36,759 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 4922 4980) the Hoare annotation is: (or (and (= ~ldv_module_refcounter~0 1) (= |old(~LDV_IN_INTERRUPT~0)| ~LDV_IN_INTERRUPT~0)) (not (= |old(~ldv_module_refcounter~0)| 1))) [2020-08-21 22:23:36,759 INFO L268 CegarLoopResult]: For program point L4952(line 4952) no Hoare annotation was computed. [2020-08-21 22:23:36,759 INFO L264 CegarLoopResult]: At program point L4946(lines 4945 4959) the Hoare annotation is: (or (= ~ldv_module_refcounter~0 |old(~ldv_module_refcounter~0)|) (not (= |old(~ldv_module_refcounter~0)| 1))) [2020-08-21 22:23:36,759 INFO L268 CegarLoopResult]: For program point L4934(line 4934) no Hoare annotation was computed. [2020-08-21 22:23:36,759 INFO L268 CegarLoopResult]: For program point L4936(lines 4936 4939) no Hoare annotation was computed. [2020-08-21 22:23:36,759 INFO L268 CegarLoopResult]: For program point L4965(lines 4965 4969) no Hoare annotation was computed. [2020-08-21 22:23:36,760 INFO L268 CegarLoopResult]: For program point L5006(lines 5006 5011) no Hoare annotation was computed. [2020-08-21 22:23:36,760 INFO L264 CegarLoopResult]: At program point ldv_try_module_getENTRY(lines 4999 5016) the Hoare annotation is: (or (= ~ldv_module_refcounter~0 1) (not (= |old(~ldv_module_refcounter~0)| 1))) [2020-08-21 22:23:36,760 INFO L268 CegarLoopResult]: For program point L5004-1(line 5004) no Hoare annotation was computed. [2020-08-21 22:23:36,760 INFO L268 CegarLoopResult]: For program point L5002(lines 5002 5013) no Hoare annotation was computed. [2020-08-21 22:23:36,760 INFO L264 CegarLoopResult]: At program point L5004(line 5004) the Hoare annotation is: (or (and (= ~ldv_module_refcounter~0 1) (= ldv_try_module_get_~module.base |ldv_try_module_get_#in~module.base|) (= ldv_try_module_get_~module.offset |ldv_try_module_get_#in~module.offset|) (<= (+ |ldv_try_module_get_#in~module.base| |ldv_try_module_get_#in~module.offset|) (+ (* 18446744073709551616 (div (+ |ldv_try_module_get_#in~module.base| |ldv_try_module_get_#in~module.offset| (- 1)) 18446744073709551616)) 18446744073709551615))) (not (= |old(~ldv_module_refcounter~0)| 1))) [2020-08-21 22:23:36,760 INFO L268 CegarLoopResult]: For program point ldv_try_module_getFINAL(lines 4999 5016) no Hoare annotation was computed. [2020-08-21 22:23:36,760 INFO L268 CegarLoopResult]: For program point ldv_try_module_getEXIT(lines 4999 5016) no Hoare annotation was computed. [2020-08-21 22:23:36,760 INFO L268 CegarLoopResult]: For program point lock_sock_nestedFINAL(lines 5090 5092) no Hoare annotation was computed. [2020-08-21 22:23:36,761 INFO L268 CegarLoopResult]: For program point lock_sock_nestedENTRY(lines 5090 5092) no Hoare annotation was computed. [2020-08-21 22:23:36,762 INFO L268 CegarLoopResult]: For program point lock_sock_nestedEXIT(lines 5090 5092) no Hoare annotation was computed. [2020-08-21 22:23:36,762 INFO L268 CegarLoopResult]: For program point ##fun~$Pointer$~X~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-08-21 22:23:36,762 INFO L268 CegarLoopResult]: For program point ##fun~$Pointer$~X~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-08-21 22:23:36,762 INFO L268 CegarLoopResult]: For program point ##fun~$Pointer$~X~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-08-21 22:23:36,762 INFO L271 CegarLoopResult]: At program point sock_unregisterENTRY(lines 5110 5112) the Hoare annotation is: true [2020-08-21 22:23:36,762 INFO L268 CegarLoopResult]: For program point sock_unregisterEXIT(lines 5110 5112) no Hoare annotation was computed. [2020-08-21 22:23:36,762 INFO L268 CegarLoopResult]: For program point sock_unregisterFINAL(lines 5110 5112) no Hoare annotation was computed. [2020-08-21 22:23:36,762 INFO L268 CegarLoopResult]: For program point pppox_skEXIT(lines 4718 4723) no Hoare annotation was computed. [2020-08-21 22:23:36,762 INFO L268 CegarLoopResult]: For program point pppox_skENTRY(lines 4718 4723) no Hoare annotation was computed. [2020-08-21 22:23:36,763 INFO L268 CegarLoopResult]: For program point pppox_skFINAL(lines 4718 4723) no Hoare annotation was computed. [2020-08-21 22:23:36,763 INFO L271 CegarLoopResult]: At program point ldv_undefined_intENTRY(lines 5087 5089) the Hoare annotation is: true [2020-08-21 22:23:36,763 INFO L268 CegarLoopResult]: For program point ldv_undefined_intEXIT(lines 5087 5089) no Hoare annotation was computed. [2020-08-21 22:23:36,763 INFO L268 CegarLoopResult]: For program point ldv_undefined_intFINAL(lines 5087 5089) no Hoare annotation was computed. [2020-08-21 22:23:36,763 INFO L268 CegarLoopResult]: For program point __request_moduleEXIT(lines 5080 5082) no Hoare annotation was computed. [2020-08-21 22:23:36,763 INFO L268 CegarLoopResult]: For program point __request_moduleENTRY(lines 5080 5082) no Hoare annotation was computed. [2020-08-21 22:23:36,763 INFO L268 CegarLoopResult]: For program point __request_moduleFINAL(lines 5080 5082) no Hoare annotation was computed. [2020-08-21 22:23:36,763 INFO L264 CegarLoopResult]: At program point L4895(lines 4864 4897) the Hoare annotation is: (or (= ~ldv_module_refcounter~0 1) (not (= |old(~ldv_module_refcounter~0)| 1))) [2020-08-21 22:23:36,764 INFO L264 CegarLoopResult]: At program point L4893(line 4893) the Hoare annotation is: (or (not (= |old(~ldv_module_refcounter~0)| 1)) (let ((.cse5 (+ |old(~ldv_module_refcounter~0)| 1))) (and (<= (+ |pppox_create_#t~mem45.base| |pppox_create_#t~mem45.offset|) (+ (* 18446744073709551616 (div (+ |pppox_create_#t~mem45.base| |pppox_create_#t~mem45.offset| (- 1)) 18446744073709551616)) 18446744073709551615)) (let ((.cse4 (+ (* pppox_create_~protocol 8) |~#pppox_protos~0.offset|))) (let ((.cse2 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse4)) (.cse3 (+ (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse4) 16))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse2) .cse3)) (.cse1 (select (select |#memory_$Pointer$.offset| .cse2) .cse3))) (<= (+ .cse0 .cse1) (+ (* 18446744073709551616 (div (+ .cse0 .cse1 (- 1)) 18446744073709551616)) 18446744073709551615))))) (<= .cse5 ~ldv_module_refcounter~0) (not (= pppox_create_~tmp~2 0)) (<= ~ldv_module_refcounter~0 .cse5)))) [2020-08-21 22:23:36,764 INFO L268 CegarLoopResult]: For program point L4893-1(line 4893) no Hoare annotation was computed. [2020-08-21 22:23:36,764 INFO L268 CegarLoopResult]: For program point pppox_createFINAL(lines 4861 4898) no Hoare annotation was computed. [2020-08-21 22:23:36,766 INFO L268 CegarLoopResult]: For program point L4869(lines 4869 4872) no Hoare annotation was computed. [2020-08-21 22:23:36,766 INFO L268 CegarLoopResult]: For program point L4892-1(line 4892) no Hoare annotation was computed. [2020-08-21 22:23:36,766 INFO L264 CegarLoopResult]: At program point pppox_createENTRY(lines 4861 4898) the Hoare annotation is: (or (= ~ldv_module_refcounter~0 1) (not (= |old(~ldv_module_refcounter~0)| 1))) [2020-08-21 22:23:36,766 INFO L264 CegarLoopResult]: At program point L4892(line 4892) the Hoare annotation is: (or (not (= |old(~ldv_module_refcounter~0)| 1)) (let ((.cse5 (+ |old(~ldv_module_refcounter~0)| 1))) (and (let ((.cse4 (+ (* pppox_create_~protocol 8) |~#pppox_protos~0.offset|))) (let ((.cse2 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse4)) (.cse3 (+ (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse4) 16))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse2) .cse3)) (.cse1 (select (select |#memory_$Pointer$.offset| .cse2) .cse3))) (<= (+ .cse0 .cse1) (+ (* 18446744073709551616 (div (+ .cse0 .cse1 (- 1)) 18446744073709551616)) 18446744073709551615))))) (<= .cse5 ~ldv_module_refcounter~0) (not (= pppox_create_~tmp~2 0)) (<= ~ldv_module_refcounter~0 .cse5)))) [2020-08-21 22:23:36,766 INFO L268 CegarLoopResult]: For program point L4886(lines 4886 4889) no Hoare annotation was computed. [2020-08-21 22:23:36,766 INFO L268 CegarLoopResult]: For program point L4884-1(line 4884) no Hoare annotation was computed. [2020-08-21 22:23:36,767 INFO L264 CegarLoopResult]: At program point L4884(line 4884) the Hoare annotation is: (or (not (= |old(~ldv_module_refcounter~0)| 1)) (let ((.cse2 (+ (* pppox_create_~protocol 8) |~#pppox_protos~0.offset|))) (let ((.cse0 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse2)) (.cse1 (+ (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse2) 16))) (and (= |pppox_create_#t~mem35.base| (select (select |#memory_$Pointer$.base| .cse0) .cse1)) (= |pppox_create_#t~mem35.offset| (select (select |#memory_$Pointer$.offset| .cse0) .cse1)) (= ~ldv_module_refcounter~0 1))))) [2020-08-21 22:23:36,767 INFO L268 CegarLoopResult]: For program point L4880(lines 4880 4890) no Hoare annotation was computed. [2020-08-21 22:23:36,767 INFO L268 CegarLoopResult]: For program point L4874(lines 4874 4879) no Hoare annotation was computed. [2020-08-21 22:23:36,767 INFO L268 CegarLoopResult]: For program point pppox_createEXIT(lines 4861 4898) no Hoare annotation was computed. [2020-08-21 22:23:36,767 INFO L268 CegarLoopResult]: For program point L4874-2(lines 4874 4879) no Hoare annotation was computed. [2020-08-21 22:23:36,767 INFO L268 CegarLoopResult]: For program point L4866(lines 4866 4872) no Hoare annotation was computed. [2020-08-21 22:23:36,767 INFO L271 CegarLoopResult]: At program point ldv_initializeFINAL(lines 5083 5085) the Hoare annotation is: true [2020-08-21 22:23:36,768 INFO L268 CegarLoopResult]: For program point ldv_initializeEXIT(lines 5083 5085) no Hoare annotation was computed. [2020-08-21 22:23:36,768 INFO L268 CegarLoopResult]: For program point ##fun~$Pointer$~X~$Pointer$~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-08-21 22:23:36,768 INFO L271 CegarLoopResult]: At program point ##fun~$Pointer$~X~$Pointer$~TO~intENTRY(line -1) the Hoare annotation is: true [2020-08-21 22:23:36,768 INFO L268 CegarLoopResult]: For program point ##fun~$Pointer$~X~$Pointer$~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-08-21 22:23:36,768 INFO L268 CegarLoopResult]: For program point ldv_module_put_and_exitEXIT(lines 5033 5042) no Hoare annotation was computed. [2020-08-21 22:23:36,768 INFO L268 CegarLoopResult]: For program point L5037(lines 5035 5041) no Hoare annotation was computed. [2020-08-21 22:23:36,768 INFO L268 CegarLoopResult]: For program point ldv_module_put_and_exitENTRY(lines 5033 5042) no Hoare annotation was computed. [2020-08-21 22:23:36,768 INFO L268 CegarLoopResult]: For program point unregister_pppox_protoEXIT(lines 4747 4759) no Hoare annotation was computed. [2020-08-21 22:23:36,768 INFO L268 CegarLoopResult]: For program point unregister_pppox_protoENTRY(lines 4747 4759) no Hoare annotation was computed. [2020-08-21 22:23:36,769 INFO L268 CegarLoopResult]: For program point L4751(lines 4751 4754) no Hoare annotation was computed. [2020-08-21 22:23:36,769 INFO L268 CegarLoopResult]: For program point L4750(lines 4750 4756) no Hoare annotation was computed. [2020-08-21 22:23:36,769 INFO L268 CegarLoopResult]: For program point L4750-1(lines 4747 4759) no Hoare annotation was computed. [2020-08-21 22:23:36,769 INFO L268 CegarLoopResult]: For program point pppox_exitEXIT(lines 4909 4917) no Hoare annotation was computed. [2020-08-21 22:23:36,769 INFO L271 CegarLoopResult]: At program point pppox_exitENTRY(lines 4909 4917) the Hoare annotation is: true [2020-08-21 22:23:36,769 INFO L268 CegarLoopResult]: For program point pppox_exitFINAL(lines 4909 4917) no Hoare annotation was computed. [2020-08-21 22:23:36,769 INFO L268 CegarLoopResult]: For program point pppox_unbind_sockEXIT(lines 4760 4773) no Hoare annotation was computed. [2020-08-21 22:23:36,769 INFO L268 CegarLoopResult]: For program point L4766(line 4766) no Hoare annotation was computed. [2020-08-21 22:23:36,769 INFO L268 CegarLoopResult]: For program point pppox_unbind_sockENTRY(lines 4760 4773) no Hoare annotation was computed. [2020-08-21 22:23:36,770 INFO L268 CegarLoopResult]: For program point L4763(lines 4763 4770) no Hoare annotation was computed. [2020-08-21 22:23:36,770 INFO L268 CegarLoopResult]: For program point L4765(line 4765) no Hoare annotation was computed. [2020-08-21 22:23:36,770 INFO L268 CegarLoopResult]: For program point L4766-1(line 4766) no Hoare annotation was computed. [2020-08-21 22:23:36,770 INFO L268 CegarLoopResult]: For program point L4765-1(line 4765) no Hoare annotation was computed. [2020-08-21 22:23:36,770 INFO L268 CegarLoopResult]: For program point L4763-2(lines 4760 4773) no Hoare annotation was computed. [2020-08-21 22:23:36,770 INFO L268 CegarLoopResult]: For program point ldv_module_refcountFINAL(lines 5043 5048) no Hoare annotation was computed. [2020-08-21 22:23:36,770 INFO L268 CegarLoopResult]: For program point ldv_module_refcountENTRY(lines 5043 5048) no Hoare annotation was computed. [2020-08-21 22:23:36,770 INFO L268 CegarLoopResult]: For program point ldv_module_refcountEXIT(lines 5043 5048) no Hoare annotation was computed. [2020-08-21 22:23:36,771 INFO L268 CegarLoopResult]: For program point release_sockENTRY(lines 5103 5105) no Hoare annotation was computed. [2020-08-21 22:23:36,771 INFO L268 CegarLoopResult]: For program point release_sockEXIT(lines 5103 5105) no Hoare annotation was computed. [2020-08-21 22:23:36,771 INFO L268 CegarLoopResult]: For program point release_sockFINAL(lines 5103 5105) no Hoare annotation was computed. [2020-08-21 22:23:36,771 INFO L268 CegarLoopResult]: For program point L4735(lines 4735 4738) no Hoare annotation was computed. [2020-08-21 22:23:36,771 INFO L268 CegarLoopResult]: For program point L4732(lines 4732 4738) no Hoare annotation was computed. [2020-08-21 22:23:36,771 INFO L268 CegarLoopResult]: For program point register_pppox_protoEXIT(lines 4729 4746) no Hoare annotation was computed. [2020-08-21 22:23:36,771 INFO L268 CegarLoopResult]: For program point register_pppox_protoENTRY(lines 4729 4746) no Hoare annotation was computed. [2020-08-21 22:23:36,771 INFO L268 CegarLoopResult]: For program point L4739(lines 4739 4742) no Hoare annotation was computed. [2020-08-21 22:23:36,771 INFO L268 CegarLoopResult]: For program point register_pppox_protoFINAL(lines 4729 4746) no Hoare annotation was computed. [2020-08-21 22:23:36,772 INFO L268 CegarLoopResult]: For program point pppox_initFINAL(lines 4900 4908) no Hoare annotation was computed. [2020-08-21 22:23:36,772 INFO L268 CegarLoopResult]: For program point L4904-1(line 4904) no Hoare annotation was computed. [2020-08-21 22:23:36,772 INFO L271 CegarLoopResult]: At program point pppox_initENTRY(lines 4900 4908) the Hoare annotation is: true [2020-08-21 22:23:36,772 INFO L271 CegarLoopResult]: At program point L4904(line 4904) the Hoare annotation is: true [2020-08-21 22:23:36,772 INFO L268 CegarLoopResult]: For program point pppox_initEXIT(lines 4900 4908) no Hoare annotation was computed. [2020-08-21 22:23:36,773 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-21 22:23:36,773 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#pppox_protos~0.offset| |old(~#pppox_protos~0.offset)|) (= |~#pppox_protos~0.base| |old(~#pppox_protos~0.base)|) (= ~LDV_IN_INTERRUPT~0 |old(~LDV_IN_INTERRUPT~0)|) (= |old(#length)| |#length|) (= |#t~string32.base| |old(#t~string32.base)|) (= ~ldv_module_refcounter~0 |old(~ldv_module_refcounter~0)|) (= |~#pppox_proto_family~0.offset| |old(~#pppox_proto_family~0.offset)|) (= |#t~string32.offset| |old(#t~string32.offset)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |~#pppox_proto_family~0.base| |old(~#pppox_proto_family~0.base)|) (= |old(#valid)| |#valid|)) [2020-08-21 22:23:36,773 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 22:23:36,773 INFO L271 CegarLoopResult]: At program point ldv_check_final_stateENTRY(lines 5049 5060) the Hoare annotation is: true [2020-08-21 22:23:36,773 INFO L264 CegarLoopResult]: At program point L5054(line 5054) the Hoare annotation is: (not (= ~ldv_module_refcounter~0 1)) [2020-08-21 22:23:36,773 INFO L268 CegarLoopResult]: For program point L5052(lines 5049 5060) no Hoare annotation was computed. [2020-08-21 22:23:36,773 INFO L268 CegarLoopResult]: For program point ldv_check_final_stateEXIT(lines 5049 5060) no Hoare annotation was computed. [2020-08-21 22:23:36,773 INFO L268 CegarLoopResult]: For program point ppp_unregister_channelEXIT(lines 5100 5102) no Hoare annotation was computed. [2020-08-21 22:23:36,774 INFO L268 CegarLoopResult]: For program point ppp_unregister_channelENTRY(lines 5100 5102) no Hoare annotation was computed. [2020-08-21 22:23:36,774 INFO L268 CegarLoopResult]: For program point ppp_unregister_channelFINAL(lines 5100 5102) no Hoare annotation was computed. [2020-08-21 22:23:36,774 INFO L268 CegarLoopResult]: For program point ppp_channel_indexENTRY(lines 5097 5099) no Hoare annotation was computed. [2020-08-21 22:23:36,774 INFO L268 CegarLoopResult]: For program point ppp_channel_indexEXIT(lines 5097 5099) no Hoare annotation was computed. [2020-08-21 22:23:36,775 INFO L268 CegarLoopResult]: For program point ppp_channel_indexFINAL(lines 5097 5099) no Hoare annotation was computed. [2020-08-21 22:23:36,775 INFO L268 CegarLoopResult]: For program point ldv_try_module_get_1FINAL(lines 5061 5069) no Hoare annotation was computed. [2020-08-21 22:23:36,775 INFO L268 CegarLoopResult]: For program point ldv_try_module_get_1EXIT(lines 5061 5069) no Hoare annotation was computed. [2020-08-21 22:23:36,775 INFO L264 CegarLoopResult]: At program point ldv_try_module_get_1ENTRY(lines 5061 5069) the Hoare annotation is: (or (= ~ldv_module_refcounter~0 1) (not (= |old(~ldv_module_refcounter~0)| 1))) [2020-08-21 22:23:36,775 INFO L264 CegarLoopResult]: At program point L5065(line 5065) the Hoare annotation is: (or (and (= ldv_try_module_get_1_~module.base |ldv_try_module_get_1_#in~module.base|) (= ~ldv_module_refcounter~0 1) (= |ldv_try_module_get_1_#in~module.offset| ldv_try_module_get_1_~module.offset)) (not (= |old(~ldv_module_refcounter~0)| 1))) [2020-08-21 22:23:36,776 INFO L268 CegarLoopResult]: For program point L5065-1(line 5065) no Hoare annotation was computed. [2020-08-21 22:23:36,776 INFO L271 CegarLoopResult]: At program point sock_registerENTRY(lines 5107 5109) the Hoare annotation is: true [2020-08-21 22:23:36,776 INFO L268 CegarLoopResult]: For program point sock_registerEXIT(lines 5107 5109) no Hoare annotation was computed. [2020-08-21 22:23:36,776 INFO L268 CegarLoopResult]: For program point sock_registerFINAL(lines 5107 5109) no Hoare annotation was computed. [2020-08-21 22:23:36,776 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 22:23:36,776 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (= ~ldv_module_refcounter~0 1) [2020-08-21 22:23:36,777 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 22:23:36,777 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 22:23:36,777 INFO L264 CegarLoopResult]: At program point L5023(line 5023) the Hoare annotation is: (not (<= 2 |old(~ldv_module_refcounter~0)|)) [2020-08-21 22:23:36,777 INFO L268 CegarLoopResult]: For program point L5020-2(lines 5017 5032) no Hoare annotation was computed. [2020-08-21 22:23:36,777 INFO L268 CegarLoopResult]: For program point L5021(lines 5021 5026) no Hoare annotation was computed. [2020-08-21 22:23:36,777 INFO L268 CegarLoopResult]: For program point L5020(lines 5020 5029) no Hoare annotation was computed. [2020-08-21 22:23:36,777 INFO L268 CegarLoopResult]: For program point L5021-1(lines 5021 5026) no Hoare annotation was computed. [2020-08-21 22:23:36,777 INFO L264 CegarLoopResult]: At program point ldv_module_putENTRY(lines 5017 5032) the Hoare annotation is: (or (not (<= 2 |old(~ldv_module_refcounter~0)|)) (= ~ldv_module_refcounter~0 |old(~ldv_module_refcounter~0)|)) [2020-08-21 22:23:36,778 INFO L268 CegarLoopResult]: For program point ldv_module_putEXIT(lines 5017 5032) no Hoare annotation was computed. [2020-08-21 22:23:36,778 INFO L271 CegarLoopResult]: At program point ldv_blast_assertENTRY(lines 4981 4986) the Hoare annotation is: true [2020-08-21 22:23:36,778 INFO L268 CegarLoopResult]: For program point ldv_blast_assertEXIT(lines 4981 4986) no Hoare annotation was computed. [2020-08-21 22:23:36,778 INFO L268 CegarLoopResult]: For program point ldv_blast_assertFINAL(lines 4981 4986) no Hoare annotation was computed. [2020-08-21 22:23:36,778 INFO L268 CegarLoopResult]: For program point ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4984) no Hoare annotation was computed. [2020-08-21 22:23:36,778 INFO L268 CegarLoopResult]: For program point ldv_module_put_2FINAL(lines 5070 5078) no Hoare annotation was computed. [2020-08-21 22:23:36,778 INFO L268 CegarLoopResult]: For program point ldv_module_put_2EXIT(lines 5070 5078) no Hoare annotation was computed. [2020-08-21 22:23:36,778 INFO L264 CegarLoopResult]: At program point ldv_module_put_2ENTRY(lines 5070 5078) the Hoare annotation is: (or (not (<= 2 |old(~ldv_module_refcounter~0)|)) (= ~ldv_module_refcounter~0 |old(~ldv_module_refcounter~0)|)) [2020-08-21 22:23:36,779 INFO L264 CegarLoopResult]: At program point L5074(line 5074) the Hoare annotation is: (or (not (<= 2 |old(~ldv_module_refcounter~0)|)) (and (= ldv_module_put_2_~ldv_func_arg1.base |ldv_module_put_2_#in~ldv_func_arg1.base|) (= |ldv_module_put_2_#in~ldv_func_arg1.offset| ldv_module_put_2_~ldv_func_arg1.offset) (= ~ldv_module_refcounter~0 |old(~ldv_module_refcounter~0)|))) [2020-08-21 22:23:36,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 10:23:36 BoogieIcfgContainer [2020-08-21 22:23:36,801 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 22:23:36,809 INFO L168 Benchmark]: Toolchain (without parser) took 12014.18 ms. Allocated memory was 139.5 MB in the beginning and 439.9 MB in the end (delta: 300.4 MB). Free memory was 94.8 MB in the beginning and 159.8 MB in the end (delta: -65.0 MB). Peak memory consumption was 235.4 MB. Max. memory is 7.1 GB. [2020-08-21 22:23:36,810 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 139.5 MB. Free memory was 119.8 MB in the beginning and 119.3 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-08-21 22:23:36,812 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1457.47 ms. Allocated memory was 139.5 MB in the beginning and 232.8 MB in the end (delta: 93.3 MB). Free memory was 94.8 MB in the beginning and 176.8 MB in the end (delta: -82.0 MB). Peak memory consumption was 48.5 MB. Max. memory is 7.1 GB. [2020-08-21 22:23:36,814 INFO L168 Benchmark]: Boogie Preprocessor took 97.64 ms. Allocated memory is still 232.8 MB. Free memory was 176.8 MB in the beginning and 173.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-08-21 22:23:36,814 INFO L168 Benchmark]: RCFGBuilder took 763.56 ms. Allocated memory is still 232.8 MB. Free memory was 173.8 MB in the beginning and 116.9 MB in the end (delta: 57.0 MB). Peak memory consumption was 57.0 MB. Max. memory is 7.1 GB. [2020-08-21 22:23:36,818 INFO L168 Benchmark]: TraceAbstraction took 9689.61 ms. Allocated memory was 232.8 MB in the beginning and 439.9 MB in the end (delta: 207.1 MB). Free memory was 116.9 MB in the beginning and 159.8 MB in the end (delta: -43.0 MB). Peak memory consumption was 164.1 MB. Max. memory is 7.1 GB. [2020-08-21 22:23:36,828 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 139.5 MB. Free memory was 119.8 MB in the beginning and 119.3 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1457.47 ms. Allocated memory was 139.5 MB in the beginning and 232.8 MB in the end (delta: 93.3 MB). Free memory was 94.8 MB in the beginning and 176.8 MB in the end (delta: -82.0 MB). Peak memory consumption was 48.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.64 ms. Allocated memory is still 232.8 MB. Free memory was 176.8 MB in the beginning and 173.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 763.56 ms. Allocated memory is still 232.8 MB. Free memory was 173.8 MB in the beginning and 116.9 MB in the end (delta: 57.0 MB). Peak memory consumption was 57.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9689.61 ms. Allocated memory was 232.8 MB in the beginning and 439.9 MB in the end (delta: 207.1 MB). Free memory was 116.9 MB in the beginning and 159.8 MB in the end (delta: -43.0 MB). Peak memory consumption was 164.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4984]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 4930]: Loop Invariant Derived loop invariant: ldv_module_refcounter == \old(ldv_module_refcounter) || !(\old(ldv_module_refcounter) == 1) - InvariantResult [Line: 4930]: Loop Invariant Derived loop invariant: ldv_module_refcounter == \old(ldv_module_refcounter) || !(\old(ldv_module_refcounter) == 1) - InvariantResult [Line: 4864]: Loop Invariant Derived loop invariant: ldv_module_refcounter == 1 || !(\old(ldv_module_refcounter) == 1) - InvariantResult [Line: 4930]: Loop Invariant Derived loop invariant: ldv_module_refcounter == 1 || !(\old(ldv_module_refcounter) == 1) - InvariantResult [Line: 4945]: Loop Invariant Derived loop invariant: ldv_module_refcounter == \old(ldv_module_refcounter) || !(\old(ldv_module_refcounter) == 1) - InvariantResult [Line: 4930]: Loop Invariant Derived loop invariant: ldv_module_refcounter == 1 || !(\old(ldv_module_refcounter) == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 34 procedures, 172 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.7s, OverallIterations: 8, TraceHistogramMax: 2, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 644 SDtfs, 901 SDslu, 1061 SDs, 0 SdLazy, 2801 SolverSat, 392 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 277 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=196occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 66 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 35 LocationsWithAnnotation, 234 PreInvPairs, 251 NumberOfFragments, 551 HoareAnnotationTreeSize, 234 FomulaSimplifications, 3006 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 35 FomulaSimplificationsInter, 1534 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 565 NumberOfCodeBlocks, 565 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 557 ConstructedInterpolants, 0 QuantifiedInterpolants, 160847 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 45/48 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 proved your program to be correct! Received shutdown request...