/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --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 [2020-08-22 05:40:51,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 05:40:51,951 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 05:40:51,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 05:40:51,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 05:40:51,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 05:40:51,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 05:40:51,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 05:40:51,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 05:40:51,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 05:40:51,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 05:40:51,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 05:40:51,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 05:40:51,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 05:40:51,986 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 05:40:51,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 05:40:51,988 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 05:40:51,988 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 05:40:51,990 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 05:40:51,992 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 05:40:51,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 05:40:51,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 05:40:51,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 05:40:51,996 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 05:40:51,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 05:40:51,999 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 05:40:51,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 05:40:52,000 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 05:40:52,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 05:40:52,001 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 05:40:52,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 05:40:52,002 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 05:40:52,003 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 05:40:52,003 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 05:40:52,004 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 05:40:52,004 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 05:40:52,005 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 05:40:52,005 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 05:40:52,006 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 05:40:52,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 05:40:52,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 05:40:52,009 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 [2020-08-22 05:40:52,056 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 05:40:52,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 05:40:52,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 05:40:52,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 05:40:52,061 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 05:40:52,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 05:40:52,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 05:40:52,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 05:40:52,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 05:40:52,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 05:40:52,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 05:40:52,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 05:40:52,066 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 05:40:52,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 05:40:52,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 05:40:52,066 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 05:40:52,067 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 05:40:52,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 05:40:52,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 05:40:52,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 05:40:52,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 05:40:52,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 05:40:52,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 05:40:52,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 05:40:52,068 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 05:40:52,068 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 05:40:52,068 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-22 05:40:52,070 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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-08-22 05:40:52,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 05:40:52,400 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 05:40:52,403 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 05:40:52,405 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 05:40:52,406 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 05:40:52,406 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2020-08-22 05:40:52,472 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a827be02d/776b0daec8e24a2ca1e265b9817656d5/FLAG3cad10534 [2020-08-22 05:40:53,171 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 05:40:53,173 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2020-08-22 05:40:53,208 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a827be02d/776b0daec8e24a2ca1e265b9817656d5/FLAG3cad10534 [2020-08-22 05:40:53,287 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a827be02d/776b0daec8e24a2ca1e265b9817656d5 [2020-08-22 05:40:53,298 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 05:40:53,300 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 05:40:53,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 05:40:53,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 05:40:53,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 05:40:53,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 05:40:53" (1/1) ... [2020-08-22 05:40:53,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e443faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:40:53, skipping insertion in model container [2020-08-22 05:40:53,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 05:40:53" (1/1) ... [2020-08-22 05:40:53,322 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 05:40:53,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 05:40:54,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 05:40:54,502 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 05:40:54,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 05:40:54,771 INFO L208 MainTranslator]: Completed translation [2020-08-22 05:40:54,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:40:54 WrapperNode [2020-08-22 05:40:54,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 05:40:54,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 05:40:54,775 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 05:40:54,775 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 05:40:54,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:40:54" (1/1) ... [2020-08-22 05:40:54,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:40:54" (1/1) ... [2020-08-22 05:40:54,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:40:54" (1/1) ... [2020-08-22 05:40:54,850 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:40:54" (1/1) ... [2020-08-22 05:40:54,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:40:54" (1/1) ... [2020-08-22 05:40:54,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:40:54" (1/1) ... [2020-08-22 05:40:54,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:40:54" (1/1) ... [2020-08-22 05:40:54,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 05:40:54,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 05:40:54,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 05:40:54,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 05:40:54,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:40:54" (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 [2020-08-22 05:40:55,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 05:40:55,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 05:40:55,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-08-22 05:40:55,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-08-22 05:40:55,038 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock [2020-08-22 05:40:55,038 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_sk [2020-08-22 05:40:55,038 INFO L138 BoogieDeclarations]: Found implementation of procedure register_pppox_proto [2020-08-22 05:40:55,039 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pppox_proto [2020-08-22 05:40:55,039 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_unbind_sock [2020-08-22 05:40:55,039 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_ioctl [2020-08-22 05:40:55,040 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_create [2020-08-22 05:40:55,040 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_init [2020-08-22 05:40:55,040 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_exit [2020-08-22 05:40:55,040 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 05:40:55,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2020-08-22 05:40:55,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2020-08-22 05:40:55,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2020-08-22 05:40:55,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2020-08-22 05:40:55,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2020-08-22 05:40:55,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2020-08-22 05:40:55,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-08-22 05:40:55,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2020-08-22 05:40:55,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2020-08-22 05:40:55,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2020-08-22 05:40:55,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-08-22 05:40:55,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_int [2020-08-22 05:40:55,044 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock_nested [2020-08-22 05:40:55,045 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2020-08-22 05:40:55,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_index [2020-08-22 05:40:55,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2020-08-22 05:40:55,045 INFO L138 BoogieDeclarations]: Found implementation of procedure release_sock [2020-08-22 05:40:55,045 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_register [2020-08-22 05:40:55,046 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_unregister [2020-08-22 05:40:55,046 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-22 05:40:55,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 05:40:55,046 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2020-08-22 05:40:55,046 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2020-08-22 05:40:55,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2020-08-22 05:40:55,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2020-08-22 05:40:55,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2020-08-22 05:40:55,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2020-08-22 05:40:55,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2020-08-22 05:40:55,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2020-08-22 05:40:55,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2020-08-22 05:40:55,048 INFO L130 BoogieDeclarations]: Found specification of procedure sock_register [2020-08-22 05:40:55,049 INFO L130 BoogieDeclarations]: Found specification of procedure sock_unregister [2020-08-22 05:40:55,049 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2020-08-22 05:40:55,049 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_index [2020-08-22 05:40:55,049 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock_nested [2020-08-22 05:40:55,049 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock [2020-08-22 05:40:55,049 INFO L130 BoogieDeclarations]: Found specification of procedure release_sock [2020-08-22 05:40:55,049 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_sk [2020-08-22 05:40:55,050 INFO L130 BoogieDeclarations]: Found specification of procedure register_pppox_proto [2020-08-22 05:40:55,050 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pppox_proto [2020-08-22 05:40:55,050 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_unbind_sock [2020-08-22 05:40:55,050 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_ioctl [2020-08-22 05:40:55,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 05:40:55,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 05:40:55,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 05:40:55,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 05:40:55,051 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-08-22 05:40:55,051 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_create [2020-08-22 05:40:55,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 05:40:55,052 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-08-22 05:40:55,052 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_init [2020-08-22 05:40:55,052 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_exit [2020-08-22 05:40:55,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-08-22 05:40:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-08-22 05:40:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 05:40:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 05:40:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2020-08-22 05:40:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_int [2020-08-22 05:40:55,054 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 05:40:55,054 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-22 05:40:55,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 05:40:55,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 05:40:55,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-22 05:40:55,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 05:40:55,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 05:40:55,486 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-08-22 05:40:55,592 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2020-08-22 05:40:55,593 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2020-08-22 05:40:55,593 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-08-22 05:40:55,593 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-08-22 05:40:55,594 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-08-22 05:40:55,660 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2020-08-22 05:40:55,660 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2020-08-22 05:40:55,767 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2020-08-22 05:40:55,901 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 05:40:55,902 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 05:40:55,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 05:40:55 BoogieIcfgContainer [2020-08-22 05:40:55,908 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 05:40:55,910 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 05:40:55,910 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 05:40:55,914 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 05:40:55,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 05:40:53" (1/3) ... [2020-08-22 05:40:55,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b606b9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 05:40:55, skipping insertion in model container [2020-08-22 05:40:55,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:40:54" (2/3) ... [2020-08-22 05:40:55,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b606b9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 05:40:55, skipping insertion in model container [2020-08-22 05:40:55,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 05:40:55" (3/3) ... [2020-08-22 05:40:55,918 INFO L109 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-pppox.ko.cil.out.i [2020-08-22 05:40:55,932 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 05:40:55,941 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 05:40:55,960 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 05:40:56,022 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 05:40:56,022 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 05:40:56,022 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 05:40:56,022 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 05:40:56,022 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 05:40:56,023 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 05:40:56,023 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 05:40:56,023 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 05:40:56,057 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states. [2020-08-22 05:40:56,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-08-22 05:40:56,067 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 05:40:56,068 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] [2020-08-22 05:40:56,069 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 05:40:56,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 05:40:56,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1611807670, now seen corresponding path program 1 times [2020-08-22 05:40:56,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 05:40:56,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [333659871] [2020-08-22 05:40:56,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 05:40:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:56,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:40:56,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:56,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 05:40:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:56,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 05:40:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:56,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:40:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:56,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 05:40:56,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [333659871] [2020-08-22 05:40:56,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 05:40:56,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 05:40:56,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357171593] [2020-08-22 05:40:56,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 05:40:56,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 05:40:56,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 05:40:56,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 05:40:56,582 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 4 states. [2020-08-22 05:40:57,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 05:40:57,204 INFO L93 Difference]: Finished difference Result 241 states and 297 transitions. [2020-08-22 05:40:57,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 05:40:57,207 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-08-22 05:40:57,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 05:40:57,231 INFO L225 Difference]: With dead ends: 241 [2020-08-22 05:40:57,232 INFO L226 Difference]: Without dead ends: 153 [2020-08-22 05:40:57,238 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 05:40:57,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-08-22 05:40:57,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 150. [2020-08-22 05:40:57,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-08-22 05:40:57,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 176 transitions. [2020-08-22 05:40:57,312 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 176 transitions. Word has length 24 [2020-08-22 05:40:57,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 05:40:57,312 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 176 transitions. [2020-08-22 05:40:57,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 05:40:57,313 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 176 transitions. [2020-08-22 05:40:57,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-08-22 05:40:57,316 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 05:40:57,316 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] [2020-08-22 05:40:57,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 05:40:57,317 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 05:40:57,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 05:40:57,318 INFO L82 PathProgramCache]: Analyzing trace with hash 321457227, now seen corresponding path program 1 times [2020-08-22 05:40:57,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 05:40:57,318 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [969847407] [2020-08-22 05:40:57,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 05:40:57,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:57,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:40:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:57,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 05:40:57,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:57,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 05:40:57,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:57,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:40:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:57,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-22 05:40:57,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:57,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:40:57,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:57,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 05:40:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:57,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 05:40:57,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [969847407] [2020-08-22 05:40:57,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 05:40:57,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 05:40:57,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671968847] [2020-08-22 05:40:57,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 05:40:57,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 05:40:57,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 05:40:57,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 05:40:57,655 INFO L87 Difference]: Start difference. First operand 150 states and 176 transitions. Second operand 9 states. [2020-08-22 05:40:58,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 05:40:58,409 INFO L93 Difference]: Finished difference Result 269 states and 321 transitions. [2020-08-22 05:40:58,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 05:40:58,410 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 56 [2020-08-22 05:40:58,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 05:40:58,413 INFO L225 Difference]: With dead ends: 269 [2020-08-22 05:40:58,413 INFO L226 Difference]: Without dead ends: 139 [2020-08-22 05:40:58,415 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 [2020-08-22 05:40:58,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-08-22 05:40:58,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 126. [2020-08-22 05:40:58,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-08-22 05:40:58,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 146 transitions. [2020-08-22 05:40:58,440 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 146 transitions. Word has length 56 [2020-08-22 05:40:58,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 05:40:58,440 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 146 transitions. [2020-08-22 05:40:58,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 05:40:58,441 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 146 transitions. [2020-08-22 05:40:58,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-08-22 05:40:58,443 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 05:40:58,443 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] [2020-08-22 05:40:58,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 05:40:58,444 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 05:40:58,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 05:40:58,444 INFO L82 PathProgramCache]: Analyzing trace with hash 751196711, now seen corresponding path program 1 times [2020-08-22 05:40:58,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 05:40:58,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [928577522] [2020-08-22 05:40:58,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 05:40:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:58,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:40:58,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:58,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 05:40:58,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:58,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 05:40:58,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:58,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:40:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:58,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-22 05:40:58,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:58,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:40:58,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:58,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:40:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:58,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-22 05:40:58,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:58,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 05:40:58,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [928577522] [2020-08-22 05:40:58,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 05:40:58,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 05:40:58,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591963174] [2020-08-22 05:40:58,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 05:40:58,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 05:40:58,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 05:40:58,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-22 05:40:58,731 INFO L87 Difference]: Start difference. First operand 126 states and 146 transitions. Second operand 7 states. [2020-08-22 05:40:59,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 05:40:59,504 INFO L93 Difference]: Finished difference Result 208 states and 241 transitions. [2020-08-22 05:40:59,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 05:40:59,504 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 62 [2020-08-22 05:40:59,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 05:40:59,510 INFO L225 Difference]: With dead ends: 208 [2020-08-22 05:40:59,510 INFO L226 Difference]: Without dead ends: 205 [2020-08-22 05:40:59,514 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 [2020-08-22 05:40:59,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-08-22 05:40:59,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 190. [2020-08-22 05:40:59,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-08-22 05:40:59,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 224 transitions. [2020-08-22 05:40:59,560 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 224 transitions. Word has length 62 [2020-08-22 05:40:59,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 05:40:59,560 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 224 transitions. [2020-08-22 05:40:59,561 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 05:40:59,561 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 224 transitions. [2020-08-22 05:40:59,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-08-22 05:40:59,563 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 05:40:59,563 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] [2020-08-22 05:40:59,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 05:40:59,564 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 05:40:59,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 05:40:59,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1928601058, now seen corresponding path program 1 times [2020-08-22 05:40:59,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 05:40:59,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1075871305] [2020-08-22 05:40:59,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 05:40:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:59,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:40:59,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:59,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 05:40:59,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:59,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 05:40:59,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:59,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:40:59,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:59,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-22 05:40:59,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:59,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 05:40:59,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:59,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:40:59,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:59,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:40:59,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:59,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 05:40:59,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:59,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:40:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:40:59,751 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 05:40:59,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1075871305] [2020-08-22 05:40:59,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 05:40:59,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 05:40:59,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608775067] [2020-08-22 05:40:59,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 05:40:59,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 05:40:59,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 05:40:59,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 05:40:59,754 INFO L87 Difference]: Start difference. First operand 190 states and 224 transitions. Second operand 9 states. [2020-08-22 05:41:00,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 05:41:00,157 INFO L93 Difference]: Finished difference Result 330 states and 390 transitions. [2020-08-22 05:41:00,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 05:41:00,158 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 66 [2020-08-22 05:41:00,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 05:41:00,161 INFO L225 Difference]: With dead ends: 330 [2020-08-22 05:41:00,165 INFO L226 Difference]: Without dead ends: 193 [2020-08-22 05:41:00,166 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 [2020-08-22 05:41:00,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-08-22 05:41:00,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 190. [2020-08-22 05:41:00,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-08-22 05:41:00,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 222 transitions. [2020-08-22 05:41:00,207 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 222 transitions. Word has length 66 [2020-08-22 05:41:00,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 05:41:00,207 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 222 transitions. [2020-08-22 05:41:00,208 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 05:41:00,208 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 222 transitions. [2020-08-22 05:41:00,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-08-22 05:41:00,210 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 05:41:00,210 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] [2020-08-22 05:41:00,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 05:41:00,211 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 05:41:00,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 05:41:00,211 INFO L82 PathProgramCache]: Analyzing trace with hash -167984647, now seen corresponding path program 1 times [2020-08-22 05:41:00,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 05:41:00,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1236503492] [2020-08-22 05:41:00,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 05:41:00,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:00,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:41:00,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:00,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 05:41:00,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:00,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 05:41:00,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:00,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:41:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:00,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-22 05:41:00,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:00,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 05:41:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:00,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:41:00,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:00,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:41:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:00,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-22 05:41:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:00,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-22 05:41:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:00,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:41:00,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:00,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-22 05:41:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:00,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:41:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:00,568 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 05:41:00,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1236503492] [2020-08-22 05:41:00,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 05:41:00,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 05:41:00,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914688672] [2020-08-22 05:41:00,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 05:41:00,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 05:41:00,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 05:41:00,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-22 05:41:00,572 INFO L87 Difference]: Start difference. First operand 190 states and 222 transitions. Second operand 7 states. [2020-08-22 05:41:01,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 05:41:01,171 INFO L93 Difference]: Finished difference Result 378 states and 453 transitions. [2020-08-22 05:41:01,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 05:41:01,172 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 81 [2020-08-22 05:41:01,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 05:41:01,176 INFO L225 Difference]: With dead ends: 378 [2020-08-22 05:41:01,176 INFO L226 Difference]: Without dead ends: 208 [2020-08-22 05:41:01,178 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-08-22 05:41:01,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-08-22 05:41:01,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 196. [2020-08-22 05:41:01,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-08-22 05:41:01,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 228 transitions. [2020-08-22 05:41:01,208 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 228 transitions. Word has length 81 [2020-08-22 05:41:01,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 05:41:01,208 INFO L479 AbstractCegarLoop]: Abstraction has 196 states and 228 transitions. [2020-08-22 05:41:01,208 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 05:41:01,208 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 228 transitions. [2020-08-22 05:41:01,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-08-22 05:41:01,215 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 05:41:01,217 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] [2020-08-22 05:41:01,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 05:41:01,218 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 05:41:01,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 05:41:01,219 INFO L82 PathProgramCache]: Analyzing trace with hash 275916027, now seen corresponding path program 1 times [2020-08-22 05:41:01,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 05:41:01,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [494350822] [2020-08-22 05:41:01,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 05:41:01,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:01,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:41:01,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:01,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 05:41:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:01,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 05:41:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:01,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:41:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:01,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-22 05:41:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:01,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 05:41:01,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:01,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:41:01,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:01,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:41:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:01,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-22 05:41:01,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:01,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-22 05:41:01,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:01,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:41:01,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:01,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-22 05:41:01,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:01,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:41:01,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:01,874 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 05:41:01,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [494350822] [2020-08-22 05:41:01,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 05:41:01,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-08-22 05:41:01,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721382792] [2020-08-22 05:41:01,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-22 05:41:01,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 05:41:01,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-22 05:41:01,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2020-08-22 05:41:01,878 INFO L87 Difference]: Start difference. First operand 196 states and 228 transitions. Second operand 15 states. [2020-08-22 05:41:03,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 05:41:03,442 INFO L93 Difference]: Finished difference Result 317 states and 360 transitions. [2020-08-22 05:41:03,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-08-22 05:41:03,444 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 81 [2020-08-22 05:41:03,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 05:41:03,447 INFO L225 Difference]: With dead ends: 317 [2020-08-22 05:41:03,447 INFO L226 Difference]: Without dead ends: 168 [2020-08-22 05:41:03,449 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 [2020-08-22 05:41:03,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-08-22 05:41:03,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 148. [2020-08-22 05:41:03,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-08-22 05:41:03,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 166 transitions. [2020-08-22 05:41:03,468 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 166 transitions. Word has length 81 [2020-08-22 05:41:03,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 05:41:03,469 INFO L479 AbstractCegarLoop]: Abstraction has 148 states and 166 transitions. [2020-08-22 05:41:03,469 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-22 05:41:03,469 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 166 transitions. [2020-08-22 05:41:03,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-08-22 05:41:03,472 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 05:41:03,472 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] [2020-08-22 05:41:03,473 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 05:41:03,473 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 05:41:03,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 05:41:03,473 INFO L82 PathProgramCache]: Analyzing trace with hash 93135667, now seen corresponding path program 1 times [2020-08-22 05:41:03,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 05:41:03,474 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1104696971] [2020-08-22 05:41:03,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 05:41:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:03,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:41:03,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:03,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 05:41:03,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:03,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 05:41:03,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:03,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:41:03,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:03,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-22 05:41:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:03,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 05:41:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:03,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:41:03,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:03,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:41:03,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:03,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-22 05:41:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:03,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-22 05:41:03,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:03,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:41:03,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:03,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-08-22 05:41:03,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:03,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:41:03,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:03,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-08-22 05:41:03,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1104696971] [2020-08-22 05:41:03,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 05:41:03,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 05:41:03,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847822157] [2020-08-22 05:41:03,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 05:41:03,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 05:41:03,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 05:41:03,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-08-22 05:41:03,837 INFO L87 Difference]: Start difference. First operand 148 states and 166 transitions. Second operand 9 states. [2020-08-22 05:41:04,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 05:41:04,203 INFO L93 Difference]: Finished difference Result 150 states and 167 transitions. [2020-08-22 05:41:04,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 05:41:04,204 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-08-22 05:41:04,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 05:41:04,205 INFO L225 Difference]: With dead ends: 150 [2020-08-22 05:41:04,205 INFO L226 Difference]: Without dead ends: 138 [2020-08-22 05:41:04,206 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 [2020-08-22 05:41:04,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-08-22 05:41:04,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2020-08-22 05:41:04,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-08-22 05:41:04,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 155 transitions. [2020-08-22 05:41:04,220 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 155 transitions. Word has length 83 [2020-08-22 05:41:04,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 05:41:04,221 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 155 transitions. [2020-08-22 05:41:04,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 05:41:04,221 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 155 transitions. [2020-08-22 05:41:04,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-08-22 05:41:04,231 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 05:41:04,231 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] [2020-08-22 05:41:04,231 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 05:41:04,232 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 05:41:04,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 05:41:04,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1587921817, now seen corresponding path program 1 times [2020-08-22 05:41:04,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 05:41:04,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1983911165] [2020-08-22 05:41:04,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 05:41:04,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:04,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:41:04,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:04,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 05:41:04,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:04,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 05:41:04,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:04,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:41:04,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:04,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-22 05:41:04,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:04,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 05:41:04,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:04,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:41:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:04,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:41:04,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:04,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-22 05:41:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:04,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-22 05:41:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:04,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:41:04,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:04,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 05:41:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:04,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:41:04,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:04,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:41:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:04,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 05:41:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:41:04,493 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 29 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-08-22 05:41:04,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1983911165] [2020-08-22 05:41:04,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 05:41:04,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 05:41:04,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199807207] [2020-08-22 05:41:04,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 05:41:04,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 05:41:04,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 05:41:04,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 05:41:04,497 INFO L87 Difference]: Start difference. First operand 138 states and 155 transitions. Second operand 7 states. [2020-08-22 05:41:04,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 05:41:04,820 INFO L93 Difference]: Finished difference Result 138 states and 155 transitions. [2020-08-22 05:41:04,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 05:41:04,821 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 112 [2020-08-22 05:41:04,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 05:41:04,822 INFO L225 Difference]: With dead ends: 138 [2020-08-22 05:41:04,822 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 05:41:04,823 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 [2020-08-22 05:41:04,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 05:41:04,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 05:41:04,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 05:41:04,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 05:41:04,826 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 112 [2020-08-22 05:41:04,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 05:41:04,826 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 05:41:04,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 05:41:04,826 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 05:41:04,826 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 05:41:04,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 05:41:04,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 05:41:05,742 INFO L268 CegarLoopResult]: For program point L4992-2(lines 4989 4998) no Hoare annotation was computed. [2020-08-22 05:41:05,742 INFO L268 CegarLoopResult]: For program point L4992(lines 4992 4995) no Hoare annotation was computed. [2020-08-22 05:41:05,742 INFO L268 CegarLoopResult]: For program point ldv_module_getEXIT(lines 4989 4998) no Hoare annotation was computed. [2020-08-22 05:41:05,742 INFO L268 CegarLoopResult]: For program point ldv_module_getENTRY(lines 4989 4998) no Hoare annotation was computed. [2020-08-22 05:41:05,743 INFO L268 CegarLoopResult]: For program point kfreeEXIT(lines 5114 5116) no Hoare annotation was computed. [2020-08-22 05:41:05,743 INFO L268 CegarLoopResult]: For program point kfreeENTRY(lines 5114 5116) no Hoare annotation was computed. [2020-08-22 05:41:05,743 INFO L268 CegarLoopResult]: For program point kfreeFINAL(lines 5114 5116) no Hoare annotation was computed. [2020-08-22 05:41:05,743 INFO L268 CegarLoopResult]: For program point might_faultFINAL(lines 5093 5095) no Hoare annotation was computed. [2020-08-22 05:41:05,743 INFO L268 CegarLoopResult]: For program point might_faultEXIT(lines 5093 5095) no Hoare annotation was computed. [2020-08-22 05:41:05,743 INFO L268 CegarLoopResult]: For program point lock_sockENTRY(lines 4708 4716) no Hoare annotation was computed. [2020-08-22 05:41:05,743 INFO L268 CegarLoopResult]: For program point lock_sockFINAL(lines 4708 4716) no Hoare annotation was computed. [2020-08-22 05:41:05,744 INFO L268 CegarLoopResult]: For program point L4712(line 4712) no Hoare annotation was computed. [2020-08-22 05:41:05,744 INFO L268 CegarLoopResult]: For program point lock_sockEXIT(lines 4708 4716) no Hoare annotation was computed. [2020-08-22 05:41:05,744 INFO L268 CegarLoopResult]: For program point L4788-1(lines 4783 4859) no Hoare annotation was computed. [2020-08-22 05:41:05,744 INFO L268 CegarLoopResult]: For program point L4788(line 4788) no Hoare annotation was computed. [2020-08-22 05:41:05,744 INFO L268 CegarLoopResult]: For program point L4797(lines 4797 4800) no Hoare annotation was computed. [2020-08-22 05:41:05,744 INFO L268 CegarLoopResult]: For program point L4793(lines 4792 4853) no Hoare annotation was computed. [2020-08-22 05:41:05,744 INFO L268 CegarLoopResult]: For program point pppox_ioctlFINAL(lines 4774 4860) no Hoare annotation was computed. [2020-08-22 05:41:05,745 INFO L268 CegarLoopResult]: For program point L4794(lines 4794 4852) no Hoare annotation was computed. [2020-08-22 05:41:05,745 INFO L268 CegarLoopResult]: For program point L4856(line 4856) no Hoare annotation was computed. [2020-08-22 05:41:05,745 INFO L268 CegarLoopResult]: For program point L4786(line 4786) no Hoare annotation was computed. [2020-08-22 05:41:05,745 INFO L268 CegarLoopResult]: For program point L4786-1(line 4786) no Hoare annotation was computed. [2020-08-22 05:41:05,746 INFO L268 CegarLoopResult]: For program point L4807(lines 4807 4831) no Hoare annotation was computed. [2020-08-22 05:41:05,746 INFO L268 CegarLoopResult]: For program point pppox_ioctlEXIT(lines 4774 4860) no Hoare annotation was computed. [2020-08-22 05:41:05,746 INFO L268 CegarLoopResult]: For program point L4803(line 4803) no Hoare annotation was computed. [2020-08-22 05:41:05,746 INFO L268 CegarLoopResult]: For program point L4803-1(line 4803) no Hoare annotation was computed. [2020-08-22 05:41:05,746 INFO L268 CegarLoopResult]: For program point pppox_ioctlENTRY(lines 4774 4860) no Hoare annotation was computed. [2020-08-22 05:41:05,746 INFO L268 CegarLoopResult]: For program point L4832(lines 4794 4851) no Hoare annotation was computed. [2020-08-22 05:41:05,746 INFO L268 CegarLoopResult]: For program point L4791(lines 4790 4853) no Hoare annotation was computed. [2020-08-22 05:41:05,747 INFO L268 CegarLoopResult]: For program point L4845(line 4845) no Hoare annotation was computed. [2020-08-22 05:41:05,747 INFO L268 CegarLoopResult]: For program point L4845-1(line 4845) no Hoare annotation was computed. [2020-08-22 05:41:05,747 INFO L268 CegarLoopResult]: For program point L4841(lines 4841 4850) no Hoare annotation was computed. [2020-08-22 05:41:05,747 INFO L268 CegarLoopResult]: For program point L4804-1(line 4804) no Hoare annotation was computed. [2020-08-22 05:41:05,747 INFO L268 CegarLoopResult]: For program point L4804(line 4804) no Hoare annotation was computed. [2020-08-22 05:41:05,747 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 4922 4980) no Hoare annotation was computed. [2020-08-22 05:41:05,747 INFO L268 CegarLoopResult]: For program point L4945(lines 4945 4959) no Hoare annotation was computed. [2020-08-22 05:41:05,747 INFO L268 CegarLoopResult]: For program point L4976(line 4976) no Hoare annotation was computed. [2020-08-22 05:41:05,748 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 4922 4980) no Hoare annotation was computed. [2020-08-22 05:41:05,748 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))) [2020-08-22 05:41:05,748 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))) [2020-08-22 05:41:05,748 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))) [2020-08-22 05:41:05,748 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))) [2020-08-22 05:41:05,749 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))) [2020-08-22 05:41:05,749 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))) [2020-08-22 05:41:05,749 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))) [2020-08-22 05:41:05,749 INFO L268 CegarLoopResult]: For program point L4952(line 4952) no Hoare annotation was computed. [2020-08-22 05:41:05,749 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))) [2020-08-22 05:41:05,749 INFO L268 CegarLoopResult]: For program point L4934(line 4934) no Hoare annotation was computed. [2020-08-22 05:41:05,749 INFO L268 CegarLoopResult]: For program point L4936(lines 4936 4939) no Hoare annotation was computed. [2020-08-22 05:41:05,750 INFO L268 CegarLoopResult]: For program point L4965(lines 4965 4969) no Hoare annotation was computed. [2020-08-22 05:41:05,750 INFO L268 CegarLoopResult]: For program point L5006(lines 5006 5011) no Hoare annotation was computed. [2020-08-22 05:41:05,750 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))) [2020-08-22 05:41:05,750 INFO L268 CegarLoopResult]: For program point L5004-1(line 5004) no Hoare annotation was computed. [2020-08-22 05:41:05,750 INFO L268 CegarLoopResult]: For program point L5002(lines 5002 5013) no Hoare annotation was computed. [2020-08-22 05:41:05,750 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))) [2020-08-22 05:41:05,751 INFO L268 CegarLoopResult]: For program point ldv_try_module_getFINAL(lines 4999 5016) no Hoare annotation was computed. [2020-08-22 05:41:05,751 INFO L268 CegarLoopResult]: For program point ldv_try_module_getEXIT(lines 4999 5016) no Hoare annotation was computed. [2020-08-22 05:41:05,751 INFO L268 CegarLoopResult]: For program point lock_sock_nestedFINAL(lines 5090 5092) no Hoare annotation was computed. [2020-08-22 05:41:05,751 INFO L268 CegarLoopResult]: For program point lock_sock_nestedENTRY(lines 5090 5092) no Hoare annotation was computed. [2020-08-22 05:41:05,751 INFO L268 CegarLoopResult]: For program point lock_sock_nestedEXIT(lines 5090 5092) no Hoare annotation was computed. [2020-08-22 05:41:05,751 INFO L268 CegarLoopResult]: For program point ##fun~$Pointer$~X~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-08-22 05:41:05,751 INFO L268 CegarLoopResult]: For program point ##fun~$Pointer$~X~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-08-22 05:41:05,751 INFO L268 CegarLoopResult]: For program point ##fun~$Pointer$~X~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-08-22 05:41:05,752 INFO L271 CegarLoopResult]: At program point sock_unregisterENTRY(lines 5110 5112) the Hoare annotation is: true [2020-08-22 05:41:05,752 INFO L268 CegarLoopResult]: For program point sock_unregisterEXIT(lines 5110 5112) no Hoare annotation was computed. [2020-08-22 05:41:05,752 INFO L268 CegarLoopResult]: For program point sock_unregisterFINAL(lines 5110 5112) no Hoare annotation was computed. [2020-08-22 05:41:05,752 INFO L268 CegarLoopResult]: For program point pppox_skEXIT(lines 4718 4723) no Hoare annotation was computed. [2020-08-22 05:41:05,752 INFO L268 CegarLoopResult]: For program point pppox_skENTRY(lines 4718 4723) no Hoare annotation was computed. [2020-08-22 05:41:05,752 INFO L268 CegarLoopResult]: For program point pppox_skFINAL(lines 4718 4723) no Hoare annotation was computed. [2020-08-22 05:41:05,752 INFO L271 CegarLoopResult]: At program point ldv_undefined_intENTRY(lines 5087 5089) the Hoare annotation is: true [2020-08-22 05:41:05,753 INFO L268 CegarLoopResult]: For program point ldv_undefined_intEXIT(lines 5087 5089) no Hoare annotation was computed. [2020-08-22 05:41:05,753 INFO L268 CegarLoopResult]: For program point ldv_undefined_intFINAL(lines 5087 5089) no Hoare annotation was computed. [2020-08-22 05:41:05,753 INFO L268 CegarLoopResult]: For program point __request_moduleEXIT(lines 5080 5082) no Hoare annotation was computed. [2020-08-22 05:41:05,753 INFO L268 CegarLoopResult]: For program point __request_moduleENTRY(lines 5080 5082) no Hoare annotation was computed. [2020-08-22 05:41:05,753 INFO L268 CegarLoopResult]: For program point __request_moduleFINAL(lines 5080 5082) no Hoare annotation was computed. [2020-08-22 05:41:05,753 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))) [2020-08-22 05:41:05,754 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$.offset| .cse2) .cse3))) (<= (+ .cse0 .cse1) (+ (* 18446744073709551616 (div (+ .cse0 .cse1 (- 1)) 18446744073709551616)) 18446744073709551615))))) (<= .cse5 ~ldv_module_refcounter~0) (not (= pppox_create_~tmp~2 0)) (<= ~ldv_module_refcounter~0 .cse5)))) [2020-08-22 05:41:05,754 INFO L268 CegarLoopResult]: For program point L4893-1(line 4893) no Hoare annotation was computed. [2020-08-22 05:41:05,754 INFO L268 CegarLoopResult]: For program point pppox_createFINAL(lines 4861 4898) no Hoare annotation was computed. [2020-08-22 05:41:05,754 INFO L268 CegarLoopResult]: For program point L4869(lines 4869 4872) no Hoare annotation was computed. [2020-08-22 05:41:05,754 INFO L268 CegarLoopResult]: For program point L4892-1(line 4892) no Hoare annotation was computed. [2020-08-22 05:41:05,754 INFO L264 CegarLoopResult]: At program point pppox_createENTRY(lines 4861 4898) the Hoare annotation is: (or (= ~ldv_module_refcounter~0 1) (not (= |old(~ldv_module_refcounter~0)| 1))) [2020-08-22 05:41:05,755 INFO L264 CegarLoopResult]: At program point L4892(line 4892) the Hoare annotation is: (or (not (= |old(~ldv_module_refcounter~0)| 1)) (let ((.cse5 (+ |old(~ldv_module_refcounter~0)| 1))) (and (let ((.cse4 (+ (* pppox_create_~protocol 8) |~#pppox_protos~0.offset|))) (let ((.cse2 (select (select |#memory_$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$.offset| .cse2) .cse3))) (<= (+ .cse0 .cse1) (+ (* 18446744073709551616 (div (+ .cse0 .cse1 (- 1)) 18446744073709551616)) 18446744073709551615))))) (<= .cse5 ~ldv_module_refcounter~0) (not (= pppox_create_~tmp~2 0)) (<= ~ldv_module_refcounter~0 .cse5)))) [2020-08-22 05:41:05,755 INFO L268 CegarLoopResult]: For program point L4886(lines 4886 4889) no Hoare annotation was computed. [2020-08-22 05:41:05,755 INFO L268 CegarLoopResult]: For program point L4884-1(line 4884) no Hoare annotation was computed. [2020-08-22 05:41:05,755 INFO L264 CegarLoopResult]: At program point L4884(line 4884) the Hoare annotation is: (or (not (= |old(~ldv_module_refcounter~0)| 1)) (let ((.cse2 (+ (* pppox_create_~protocol 8) |~#pppox_protos~0.offset|))) (let ((.cse0 (select (select |#memory_$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$.offset| .cse0) .cse1)) (= ~ldv_module_refcounter~0 1))))) [2020-08-22 05:41:05,755 INFO L268 CegarLoopResult]: For program point L4880(lines 4880 4890) no Hoare annotation was computed. [2020-08-22 05:41:05,755 INFO L268 CegarLoopResult]: For program point L4874(lines 4874 4879) no Hoare annotation was computed. [2020-08-22 05:41:05,755 INFO L268 CegarLoopResult]: For program point pppox_createEXIT(lines 4861 4898) no Hoare annotation was computed. [2020-08-22 05:41:05,756 INFO L268 CegarLoopResult]: For program point L4874-2(lines 4874 4879) no Hoare annotation was computed. [2020-08-22 05:41:05,756 INFO L268 CegarLoopResult]: For program point L4866(lines 4866 4872) no Hoare annotation was computed. [2020-08-22 05:41:05,756 INFO L271 CegarLoopResult]: At program point ldv_initializeFINAL(lines 5083 5085) the Hoare annotation is: true [2020-08-22 05:41:05,756 INFO L268 CegarLoopResult]: For program point ldv_initializeEXIT(lines 5083 5085) no Hoare annotation was computed. [2020-08-22 05:41:05,756 INFO L268 CegarLoopResult]: For program point ##fun~$Pointer$~X~$Pointer$~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-08-22 05:41:05,756 INFO L271 CegarLoopResult]: At program point ##fun~$Pointer$~X~$Pointer$~TO~intENTRY(line -1) the Hoare annotation is: true [2020-08-22 05:41:05,756 INFO L268 CegarLoopResult]: For program point ##fun~$Pointer$~X~$Pointer$~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-08-22 05:41:05,757 INFO L268 CegarLoopResult]: For program point ldv_module_put_and_exitEXIT(lines 5033 5042) no Hoare annotation was computed. [2020-08-22 05:41:05,757 INFO L268 CegarLoopResult]: For program point L5037(lines 5035 5041) no Hoare annotation was computed. [2020-08-22 05:41:05,757 INFO L268 CegarLoopResult]: For program point ldv_module_put_and_exitENTRY(lines 5033 5042) no Hoare annotation was computed. [2020-08-22 05:41:05,757 INFO L268 CegarLoopResult]: For program point unregister_pppox_protoEXIT(lines 4747 4759) no Hoare annotation was computed. [2020-08-22 05:41:05,757 INFO L268 CegarLoopResult]: For program point unregister_pppox_protoENTRY(lines 4747 4759) no Hoare annotation was computed. [2020-08-22 05:41:05,757 INFO L268 CegarLoopResult]: For program point L4751(lines 4751 4754) no Hoare annotation was computed. [2020-08-22 05:41:05,757 INFO L268 CegarLoopResult]: For program point L4750(lines 4750 4756) no Hoare annotation was computed. [2020-08-22 05:41:05,758 INFO L268 CegarLoopResult]: For program point L4750-1(lines 4747 4759) no Hoare annotation was computed. [2020-08-22 05:41:05,758 INFO L268 CegarLoopResult]: For program point pppox_exitEXIT(lines 4909 4917) no Hoare annotation was computed. [2020-08-22 05:41:05,758 INFO L271 CegarLoopResult]: At program point pppox_exitENTRY(lines 4909 4917) the Hoare annotation is: true [2020-08-22 05:41:05,758 INFO L268 CegarLoopResult]: For program point pppox_exitFINAL(lines 4909 4917) no Hoare annotation was computed. [2020-08-22 05:41:05,758 INFO L268 CegarLoopResult]: For program point pppox_unbind_sockEXIT(lines 4760 4773) no Hoare annotation was computed. [2020-08-22 05:41:05,758 INFO L268 CegarLoopResult]: For program point L4766(line 4766) no Hoare annotation was computed. [2020-08-22 05:41:05,758 INFO L268 CegarLoopResult]: For program point pppox_unbind_sockENTRY(lines 4760 4773) no Hoare annotation was computed. [2020-08-22 05:41:05,758 INFO L268 CegarLoopResult]: For program point L4763(lines 4763 4770) no Hoare annotation was computed. [2020-08-22 05:41:05,759 INFO L268 CegarLoopResult]: For program point L4765(line 4765) no Hoare annotation was computed. [2020-08-22 05:41:05,759 INFO L268 CegarLoopResult]: For program point L4766-1(line 4766) no Hoare annotation was computed. [2020-08-22 05:41:05,759 INFO L268 CegarLoopResult]: For program point L4765-1(line 4765) no Hoare annotation was computed. [2020-08-22 05:41:05,759 INFO L268 CegarLoopResult]: For program point L4763-2(lines 4760 4773) no Hoare annotation was computed. [2020-08-22 05:41:05,759 INFO L268 CegarLoopResult]: For program point ldv_module_refcountFINAL(lines 5043 5048) no Hoare annotation was computed. [2020-08-22 05:41:05,759 INFO L268 CegarLoopResult]: For program point ldv_module_refcountENTRY(lines 5043 5048) no Hoare annotation was computed. [2020-08-22 05:41:05,759 INFO L268 CegarLoopResult]: For program point ldv_module_refcountEXIT(lines 5043 5048) no Hoare annotation was computed. [2020-08-22 05:41:05,759 INFO L268 CegarLoopResult]: For program point release_sockENTRY(lines 5103 5105) no Hoare annotation was computed. [2020-08-22 05:41:05,760 INFO L268 CegarLoopResult]: For program point release_sockEXIT(lines 5103 5105) no Hoare annotation was computed. [2020-08-22 05:41:05,760 INFO L268 CegarLoopResult]: For program point release_sockFINAL(lines 5103 5105) no Hoare annotation was computed. [2020-08-22 05:41:05,760 INFO L268 CegarLoopResult]: For program point L4735(lines 4735 4738) no Hoare annotation was computed. [2020-08-22 05:41:05,760 INFO L268 CegarLoopResult]: For program point L4732(lines 4732 4738) no Hoare annotation was computed. [2020-08-22 05:41:05,760 INFO L268 CegarLoopResult]: For program point register_pppox_protoEXIT(lines 4729 4746) no Hoare annotation was computed. [2020-08-22 05:41:05,760 INFO L268 CegarLoopResult]: For program point register_pppox_protoENTRY(lines 4729 4746) no Hoare annotation was computed. [2020-08-22 05:41:05,760 INFO L268 CegarLoopResult]: For program point L4739(lines 4739 4742) no Hoare annotation was computed. [2020-08-22 05:41:05,760 INFO L268 CegarLoopResult]: For program point register_pppox_protoFINAL(lines 4729 4746) no Hoare annotation was computed. [2020-08-22 05:41:05,761 INFO L268 CegarLoopResult]: For program point pppox_initFINAL(lines 4900 4908) no Hoare annotation was computed. [2020-08-22 05:41:05,761 INFO L268 CegarLoopResult]: For program point L4904-1(line 4904) no Hoare annotation was computed. [2020-08-22 05:41:05,761 INFO L271 CegarLoopResult]: At program point pppox_initENTRY(lines 4900 4908) the Hoare annotation is: true [2020-08-22 05:41:05,761 INFO L271 CegarLoopResult]: At program point L4904(line 4904) the Hoare annotation is: true [2020-08-22 05:41:05,761 INFO L268 CegarLoopResult]: For program point pppox_initEXIT(lines 4900 4908) no Hoare annotation was computed. [2020-08-22 05:41:05,761 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-22 05:41:05,761 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|)) [2020-08-22 05:41:05,762 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-22 05:41:05,762 INFO L271 CegarLoopResult]: At program point ldv_check_final_stateENTRY(lines 5049 5060) the Hoare annotation is: true [2020-08-22 05:41:05,762 INFO L264 CegarLoopResult]: At program point L5054(line 5054) the Hoare annotation is: (not (= ~ldv_module_refcounter~0 1)) [2020-08-22 05:41:05,762 INFO L268 CegarLoopResult]: For program point L5052(lines 5049 5060) no Hoare annotation was computed. [2020-08-22 05:41:05,762 INFO L268 CegarLoopResult]: For program point ldv_check_final_stateEXIT(lines 5049 5060) no Hoare annotation was computed. [2020-08-22 05:41:05,762 INFO L268 CegarLoopResult]: For program point ppp_unregister_channelEXIT(lines 5100 5102) no Hoare annotation was computed. [2020-08-22 05:41:05,762 INFO L268 CegarLoopResult]: For program point ppp_unregister_channelENTRY(lines 5100 5102) no Hoare annotation was computed. [2020-08-22 05:41:05,762 INFO L268 CegarLoopResult]: For program point ppp_unregister_channelFINAL(lines 5100 5102) no Hoare annotation was computed. [2020-08-22 05:41:05,763 INFO L268 CegarLoopResult]: For program point ppp_channel_indexENTRY(lines 5097 5099) no Hoare annotation was computed. [2020-08-22 05:41:05,763 INFO L268 CegarLoopResult]: For program point ppp_channel_indexEXIT(lines 5097 5099) no Hoare annotation was computed. [2020-08-22 05:41:05,763 INFO L268 CegarLoopResult]: For program point ppp_channel_indexFINAL(lines 5097 5099) no Hoare annotation was computed. [2020-08-22 05:41:05,763 INFO L268 CegarLoopResult]: For program point ldv_try_module_get_1FINAL(lines 5061 5069) no Hoare annotation was computed. [2020-08-22 05:41:05,763 INFO L268 CegarLoopResult]: For program point ldv_try_module_get_1EXIT(lines 5061 5069) no Hoare annotation was computed. [2020-08-22 05:41:05,763 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))) [2020-08-22 05:41:05,763 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))) [2020-08-22 05:41:05,764 INFO L268 CegarLoopResult]: For program point L5065-1(line 5065) no Hoare annotation was computed. [2020-08-22 05:41:05,764 INFO L271 CegarLoopResult]: At program point sock_registerENTRY(lines 5107 5109) the Hoare annotation is: true [2020-08-22 05:41:05,764 INFO L268 CegarLoopResult]: For program point sock_registerEXIT(lines 5107 5109) no Hoare annotation was computed. [2020-08-22 05:41:05,764 INFO L268 CegarLoopResult]: For program point sock_registerFINAL(lines 5107 5109) no Hoare annotation was computed. [2020-08-22 05:41:05,764 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-22 05:41:05,764 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (= ~ldv_module_refcounter~0 1) [2020-08-22 05:41:05,764 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 05:41:05,764 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-22 05:41:05,765 INFO L264 CegarLoopResult]: At program point L5023(line 5023) the Hoare annotation is: (not (<= 2 |old(~ldv_module_refcounter~0)|)) [2020-08-22 05:41:05,765 INFO L268 CegarLoopResult]: For program point L5020-2(lines 5017 5032) no Hoare annotation was computed. [2020-08-22 05:41:05,765 INFO L268 CegarLoopResult]: For program point L5021(lines 5021 5026) no Hoare annotation was computed. [2020-08-22 05:41:05,765 INFO L268 CegarLoopResult]: For program point L5020(lines 5020 5029) no Hoare annotation was computed. [2020-08-22 05:41:05,765 INFO L268 CegarLoopResult]: For program point L5021-1(lines 5021 5026) no Hoare annotation was computed. [2020-08-22 05:41:05,765 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)|)) [2020-08-22 05:41:05,765 INFO L268 CegarLoopResult]: For program point ldv_module_putEXIT(lines 5017 5032) no Hoare annotation was computed. [2020-08-22 05:41:05,766 INFO L271 CegarLoopResult]: At program point ldv_blast_assertENTRY(lines 4981 4986) the Hoare annotation is: true [2020-08-22 05:41:05,766 INFO L268 CegarLoopResult]: For program point ldv_blast_assertEXIT(lines 4981 4986) no Hoare annotation was computed. [2020-08-22 05:41:05,766 INFO L268 CegarLoopResult]: For program point ldv_blast_assertFINAL(lines 4981 4986) no Hoare annotation was computed. [2020-08-22 05:41:05,766 INFO L268 CegarLoopResult]: For program point ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4984) no Hoare annotation was computed. [2020-08-22 05:41:05,766 INFO L268 CegarLoopResult]: For program point ldv_module_put_2FINAL(lines 5070 5078) no Hoare annotation was computed. [2020-08-22 05:41:05,766 INFO L268 CegarLoopResult]: For program point ldv_module_put_2EXIT(lines 5070 5078) no Hoare annotation was computed. [2020-08-22 05:41:05,767 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)|)) [2020-08-22 05:41:05,767 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)|))) [2020-08-22 05:41:05,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 05:41:05 BoogieIcfgContainer [2020-08-22 05:41:05,784 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 05:41:05,787 INFO L168 Benchmark]: Toolchain (without parser) took 12486.16 ms. Allocated memory was 138.4 MB in the beginning and 393.7 MB in the end (delta: 255.3 MB). Free memory was 95.1 MB in the beginning and 292.2 MB in the end (delta: -197.1 MB). Peak memory consumption was 269.0 MB. Max. memory is 7.1 GB. [2020-08-22 05:41:05,787 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-22 05:41:05,788 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1470.90 ms. Allocated memory was 138.4 MB in the beginning and 206.6 MB in the end (delta: 68.2 MB). Free memory was 94.9 MB in the beginning and 128.0 MB in the end (delta: -33.1 MB). Peak memory consumption was 41.4 MB. Max. memory is 7.1 GB. [2020-08-22 05:41:05,789 INFO L168 Benchmark]: Boogie Preprocessor took 168.49 ms. Allocated memory is still 206.6 MB. Free memory was 128.0 MB in the beginning and 124.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2020-08-22 05:41:05,790 INFO L168 Benchmark]: RCFGBuilder took 964.62 ms. Allocated memory was 206.6 MB in the beginning and 237.5 MB in the end (delta: 30.9 MB). Free memory was 124.2 MB in the beginning and 177.8 MB in the end (delta: -53.6 MB). Peak memory consumption was 52.2 MB. Max. memory is 7.1 GB. [2020-08-22 05:41:05,791 INFO L168 Benchmark]: TraceAbstraction took 9874.62 ms. Allocated memory was 237.5 MB in the beginning and 393.7 MB in the end (delta: 156.2 MB). Free memory was 177.8 MB in the beginning and 292.2 MB in the end (delta: -114.4 MB). Peak memory consumption was 252.6 MB. Max. memory is 7.1 GB. [2020-08-22 05:41:05,795 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1470.90 ms. Allocated memory was 138.4 MB in the beginning and 206.6 MB in the end (delta: 68.2 MB). Free memory was 94.9 MB in the beginning and 128.0 MB in the end (delta: -33.1 MB). Peak memory consumption was 41.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 168.49 ms. Allocated memory is still 206.6 MB. Free memory was 128.0 MB in the beginning and 124.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 964.62 ms. Allocated memory was 206.6 MB in the beginning and 237.5 MB in the end (delta: 30.9 MB). Free memory was 124.2 MB in the beginning and 177.8 MB in the end (delta: -53.6 MB). Peak memory consumption was 52.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9874.62 ms. Allocated memory was 237.5 MB in the beginning and 393.7 MB in the end (delta: 156.2 MB). Free memory was 177.8 MB in the beginning and 292.2 MB in the end (delta: -114.4 MB). Peak memory consumption was 252.6 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: 8.8s, OverallIterations: 8, TraceHistogramMax: 2, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 643 SDtfs, 901 SDslu, 1060 SDs, 0 SdLazy, 2801 SolverSat, 392 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 277 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1.9s 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, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s 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...