/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 -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 0.1.25-3af5e1f [2020-09-04 14:13:53,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 14:13:53,333 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 14:13:53,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 14:13:53,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 14:13:53,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 14:13:53,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 14:13:53,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 14:13:53,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 14:13:53,369 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 14:13:53,370 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 14:13:53,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 14:13:53,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 14:13:53,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 14:13:53,375 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 14:13:53,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 14:13:53,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 14:13:53,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 14:13:53,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 14:13:53,383 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 14:13:53,385 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 14:13:53,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 14:13:53,388 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 14:13:53,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 14:13:53,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 14:13:53,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 14:13:53,392 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 14:13:53,393 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 14:13:53,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 14:13:53,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 14:13:53,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 14:13:53,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 14:13:53,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 14:13:53,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 14:13:53,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 14:13:53,400 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 14:13:53,401 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 14:13:53,401 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 14:13:53,401 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 14:13:53,402 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 14:13:53,403 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 14:13:53,404 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 [2020-09-04 14:13:53,432 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 14:13:53,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 14:13:53,439 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-04 14:13:53,440 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-04 14:13:53,440 INFO L138 SettingsManager]: * Use SBE=true [2020-09-04 14:13:53,440 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 14:13:53,440 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 14:13:53,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 14:13:53,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 14:13:53,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 14:13:53,441 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 14:13:53,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 14:13:53,441 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 14:13:53,441 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 14:13:53,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 14:13:53,442 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-04 14:13:53,442 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 14:13:53,442 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 14:13:53,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 14:13:53,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 14:13:53,443 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-04 14:13:53,443 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-04 14:13:53,444 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-04 14:13:53,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-04 14:13:53,444 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 14:13:53,444 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-04 14:13:53,444 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-04 14:13:53,445 INFO L138 SettingsManager]: * To the following directory=dump/ [2020-09-04 14:13:53,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 14:13:53,922 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 14:13:53,927 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 14:13:53,929 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 14:13:53,929 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 14:13:53,931 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2020-09-04 14:13:54,016 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3a249d163/09e07281bbe049a698a4d07d73bbbbd6/FLAG43b6472cc [2020-09-04 14:13:54,888 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 14:13:54,890 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2020-09-04 14:13:54,952 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3a249d163/09e07281bbe049a698a4d07d73bbbbd6/FLAG43b6472cc [2020-09-04 14:13:55,451 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3a249d163/09e07281bbe049a698a4d07d73bbbbd6 [2020-09-04 14:13:55,468 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 14:13:55,470 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 14:13:55,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 14:13:55,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 14:13:55,479 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 14:13:55,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 02:13:55" (1/1) ... [2020-09-04 14:13:55,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@729acd32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 02:13:55, skipping insertion in model container [2020-09-04 14:13:55,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 02:13:55" (1/1) ... [2020-09-04 14:13:55,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 14:13:55,620 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 14:13:56,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 14:13:56,642 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 14:13:56,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 14:13:56,945 INFO L208 MainTranslator]: Completed translation [2020-09-04 14:13:56,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 02:13:56 WrapperNode [2020-09-04 14:13:56,947 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 14:13:56,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 14:13:56,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 14:13:56,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 14:13:56,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 02:13:56" (1/1) ... [2020-09-04 14:13:56,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 02:13:56" (1/1) ... [2020-09-04 14:13:57,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 02:13:56" (1/1) ... [2020-09-04 14:13:57,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 02:13:56" (1/1) ... [2020-09-04 14:13:57,069 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 02:13:56" (1/1) ... [2020-09-04 14:13:57,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 02:13:56" (1/1) ... [2020-09-04 14:13:57,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 02:13:56" (1/1) ... [2020-09-04 14:13:57,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 14:13:57,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 14:13:57,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 14:13:57,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 14:13:57,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 02:13:56" (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 [2020-09-04 14:13:57,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 14:13:57,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 14:13:57,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-09-04 14:13:57,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-09-04 14:13:57,171 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock [2020-09-04 14:13:57,171 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_sk [2020-09-04 14:13:57,171 INFO L138 BoogieDeclarations]: Found implementation of procedure register_pppox_proto [2020-09-04 14:13:57,171 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pppox_proto [2020-09-04 14:13:57,172 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_unbind_sock [2020-09-04 14:13:57,172 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_ioctl [2020-09-04 14:13:57,172 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_create [2020-09-04 14:13:57,172 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_init [2020-09-04 14:13:57,172 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_exit [2020-09-04 14:13:57,172 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 14:13:57,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2020-09-04 14:13:57,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2020-09-04 14:13:57,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2020-09-04 14:13:57,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2020-09-04 14:13:57,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2020-09-04 14:13:57,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2020-09-04 14:13:57,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-04 14:13:57,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2020-09-04 14:13:57,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2020-09-04 14:13:57,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2020-09-04 14:13:57,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-04 14:13:57,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_int [2020-09-04 14:13:57,175 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock_nested [2020-09-04 14:13:57,175 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2020-09-04 14:13:57,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_index [2020-09-04 14:13:57,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2020-09-04 14:13:57,175 INFO L138 BoogieDeclarations]: Found implementation of procedure release_sock [2020-09-04 14:13:57,176 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_register [2020-09-04 14:13:57,176 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_unregister [2020-09-04 14:13:57,176 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-04 14:13:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 14:13:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2020-09-04 14:13:57,177 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2020-09-04 14:13:57,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2020-09-04 14:13:57,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2020-09-04 14:13:57,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2020-09-04 14:13:57,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2020-09-04 14:13:57,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2020-09-04 14:13:57,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2020-09-04 14:13:57,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2020-09-04 14:13:57,178 INFO L130 BoogieDeclarations]: Found specification of procedure sock_register [2020-09-04 14:13:57,178 INFO L130 BoogieDeclarations]: Found specification of procedure sock_unregister [2020-09-04 14:13:57,178 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2020-09-04 14:13:57,179 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_index [2020-09-04 14:13:57,179 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock_nested [2020-09-04 14:13:57,179 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock [2020-09-04 14:13:57,179 INFO L130 BoogieDeclarations]: Found specification of procedure release_sock [2020-09-04 14:13:57,179 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_sk [2020-09-04 14:13:57,179 INFO L130 BoogieDeclarations]: Found specification of procedure register_pppox_proto [2020-09-04 14:13:57,180 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pppox_proto [2020-09-04 14:13:57,180 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_unbind_sock [2020-09-04 14:13:57,180 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_ioctl [2020-09-04 14:13:57,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 14:13:57,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 14:13:57,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 14:13:57,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 14:13:57,181 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-09-04 14:13:57,181 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_create [2020-09-04 14:13:57,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 14:13:57,181 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-09-04 14:13:57,181 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_init [2020-09-04 14:13:57,182 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_exit [2020-09-04 14:13:57,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-04 14:13:57,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-04 14:13:57,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 14:13:57,182 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 14:13:57,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2020-09-04 14:13:57,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_int [2020-09-04 14:13:57,183 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 14:13:57,183 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-04 14:13:57,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 14:13:57,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 14:13:57,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-04 14:13:57,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 14:13:57,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 14:13:57,567 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-04 14:13:57,656 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2020-09-04 14:13:57,657 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2020-09-04 14:13:57,657 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-09-04 14:13:57,657 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-09-04 14:13:57,658 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-04 14:13:57,722 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2020-09-04 14:13:57,722 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2020-09-04 14:13:57,813 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2020-09-04 14:13:57,935 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 14:13:57,936 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-04 14:13:57,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 02:13:57 BoogieIcfgContainer [2020-09-04 14:13:57,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 14:13:57,943 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 14:13:57,943 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 14:13:57,947 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 14:13:57,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 02:13:55" (1/3) ... [2020-09-04 14:13:57,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20fb3bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 02:13:57, skipping insertion in model container [2020-09-04 14:13:57,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 02:13:56" (2/3) ... [2020-09-04 14:13:57,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20fb3bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 02:13:57, skipping insertion in model container [2020-09-04 14:13:57,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 02:13:57" (3/3) ... [2020-09-04 14:13:57,951 INFO L109 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-pppox.ko.cil.out.i [2020-09-04 14:13:57,964 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-04 14:13:57,976 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 14:13:57,999 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 14:13:58,032 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 14:13:58,033 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 14:13:58,033 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-04 14:13:58,033 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 14:13:58,033 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 14:13:58,034 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 14:13:58,034 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 14:13:58,034 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 14:13:58,061 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states. [2020-09-04 14:13:58,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-04 14:13:58,070 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 14:13:58,071 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] [2020-09-04 14:13:58,072 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 14:13:58,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 14:13:58,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1611807670, now seen corresponding path program 1 times [2020-09-04 14:13:58,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 14:13:58,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380360666] [2020-09-04 14:13:58,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 14:13:58,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:13:58,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 14:13:58,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:13:58,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 14:13:58,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:13:58,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 14:13:58,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:13:58,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 14:13:58,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:13:58,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 14:13:58,638 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380360666] [2020-09-04 14:13:58,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 14:13:58,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 14:13:58,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837321780] [2020-09-04 14:13:58,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 14:13:58,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 14:13:58,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 14:13:58,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 14:13:58,674 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 4 states. [2020-09-04 14:13:59,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 14:13:59,333 INFO L93 Difference]: Finished difference Result 241 states and 297 transitions. [2020-09-04 14:13:59,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 14:13:59,335 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-09-04 14:13:59,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 14:13:59,351 INFO L225 Difference]: With dead ends: 241 [2020-09-04 14:13:59,351 INFO L226 Difference]: Without dead ends: 153 [2020-09-04 14:13:59,356 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 14:13:59,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-09-04 14:13:59,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 150. [2020-09-04 14:13:59,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-09-04 14:13:59,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 176 transitions. [2020-09-04 14:13:59,436 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 176 transitions. Word has length 24 [2020-09-04 14:13:59,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 14:13:59,437 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 176 transitions. [2020-09-04 14:13:59,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 14:13:59,437 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 176 transitions. [2020-09-04 14:13:59,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-04 14:13:59,441 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 14:13:59,441 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] [2020-09-04 14:13:59,442 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 14:13:59,442 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 14:13:59,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 14:13:59,443 INFO L82 PathProgramCache]: Analyzing trace with hash 321457227, now seen corresponding path program 1 times [2020-09-04 14:13:59,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 14:13:59,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282972345] [2020-09-04 14:13:59,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 14:13:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:13:59,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 14:13:59,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:13:59,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 14:13:59,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:13:59,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 14:13:59,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:13:59,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 14:13:59,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:13:59,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-09-04 14:13:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:13:59,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 14:13:59,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:13:59,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-04 14:13:59,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:13:59,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 14:13:59,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282972345] [2020-09-04 14:13:59,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 14:13:59,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 14:13:59,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634120781] [2020-09-04 14:13:59,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 14:13:59,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 14:13:59,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 14:13:59,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 14:13:59,812 INFO L87 Difference]: Start difference. First operand 150 states and 176 transitions. Second operand 9 states. [2020-09-04 14:14:00,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 14:14:00,548 INFO L93 Difference]: Finished difference Result 269 states and 321 transitions. [2020-09-04 14:14:00,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-04 14:14:00,550 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 56 [2020-09-04 14:14:00,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 14:14:00,556 INFO L225 Difference]: With dead ends: 269 [2020-09-04 14:14:00,556 INFO L226 Difference]: Without dead ends: 139 [2020-09-04 14:14:00,561 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 [2020-09-04 14:14:00,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-09-04 14:14:00,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 126. [2020-09-04 14:14:00,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-09-04 14:14:00,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 146 transitions. [2020-09-04 14:14:00,613 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 146 transitions. Word has length 56 [2020-09-04 14:14:00,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 14:14:00,614 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 146 transitions. [2020-09-04 14:14:00,614 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 14:14:00,614 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 146 transitions. [2020-09-04 14:14:00,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-04 14:14:00,620 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 14:14:00,620 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] [2020-09-04 14:14:00,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 14:14:00,621 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 14:14:00,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 14:14:00,621 INFO L82 PathProgramCache]: Analyzing trace with hash 751196711, now seen corresponding path program 1 times [2020-09-04 14:14:00,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 14:14:00,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773588117] [2020-09-04 14:14:00,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 14:14:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:00,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 14:14:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:00,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 14:14:00,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:00,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 14:14:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:00,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 14:14:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:00,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-09-04 14:14:00,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:00,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 14:14:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:01,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 14:14:01,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:01,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-04 14:14:01,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:01,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 14:14:01,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773588117] [2020-09-04 14:14:01,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 14:14:01,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 14:14:01,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24660145] [2020-09-04 14:14:01,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 14:14:01,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 14:14:01,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 14:14:01,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-04 14:14:01,062 INFO L87 Difference]: Start difference. First operand 126 states and 146 transitions. Second operand 7 states. [2020-09-04 14:14:01,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 14:14:01,878 INFO L93 Difference]: Finished difference Result 208 states and 241 transitions. [2020-09-04 14:14:01,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-04 14:14:01,879 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 62 [2020-09-04 14:14:01,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 14:14:01,884 INFO L225 Difference]: With dead ends: 208 [2020-09-04 14:14:01,887 INFO L226 Difference]: Without dead ends: 205 [2020-09-04 14:14:01,888 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 [2020-09-04 14:14:01,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-09-04 14:14:01,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 190. [2020-09-04 14:14:01,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-09-04 14:14:01,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 224 transitions. [2020-09-04 14:14:01,938 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 224 transitions. Word has length 62 [2020-09-04 14:14:01,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 14:14:01,940 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 224 transitions. [2020-09-04 14:14:01,941 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 14:14:01,941 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 224 transitions. [2020-09-04 14:14:01,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-09-04 14:14:01,949 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 14:14:01,949 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] [2020-09-04 14:14:01,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 14:14:01,952 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 14:14:01,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 14:14:01,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1928601058, now seen corresponding path program 1 times [2020-09-04 14:14:01,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 14:14:01,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113810090] [2020-09-04 14:14:01,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 14:14:01,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:02,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 14:14:02,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:02,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 14:14:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:02,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 14:14:02,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:02,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 14:14:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:02,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-04 14:14:02,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:02,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 14:14:02,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:02,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 14:14:02,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:02,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 14:14:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:02,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-04 14:14:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:02,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 14:14:02,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:02,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 14:14:02,250 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113810090] [2020-09-04 14:14:02,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 14:14:02,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 14:14:02,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060480421] [2020-09-04 14:14:02,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 14:14:02,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 14:14:02,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 14:14:02,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 14:14:02,253 INFO L87 Difference]: Start difference. First operand 190 states and 224 transitions. Second operand 9 states. [2020-09-04 14:14:02,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 14:14:02,712 INFO L93 Difference]: Finished difference Result 330 states and 390 transitions. [2020-09-04 14:14:02,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-04 14:14:02,713 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 66 [2020-09-04 14:14:02,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 14:14:02,716 INFO L225 Difference]: With dead ends: 330 [2020-09-04 14:14:02,716 INFO L226 Difference]: Without dead ends: 193 [2020-09-04 14:14:02,718 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 [2020-09-04 14:14:02,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-09-04 14:14:02,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 190. [2020-09-04 14:14:02,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-09-04 14:14:02,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 222 transitions. [2020-09-04 14:14:02,748 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 222 transitions. Word has length 66 [2020-09-04 14:14:02,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 14:14:02,749 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 222 transitions. [2020-09-04 14:14:02,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 14:14:02,750 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 222 transitions. [2020-09-04 14:14:02,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-09-04 14:14:02,753 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 14:14:02,754 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] [2020-09-04 14:14:02,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 14:14:02,754 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 14:14:02,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 14:14:02,755 INFO L82 PathProgramCache]: Analyzing trace with hash -167984647, now seen corresponding path program 1 times [2020-09-04 14:14:02,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 14:14:02,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211261786] [2020-09-04 14:14:02,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 14:14:02,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:02,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 14:14:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:02,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 14:14:02,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:02,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 14:14:02,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:02,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 14:14:02,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:02,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-04 14:14:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:03,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 14:14:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:03,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 14:14:03,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:03,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 14:14:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:03,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-04 14:14:03,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:03,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-04 14:14:03,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:03,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 14:14:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:03,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-04 14:14:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:03,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 14:14:03,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:03,203 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 14:14:03,204 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211261786] [2020-09-04 14:14:03,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 14:14:03,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 14:14:03,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579244021] [2020-09-04 14:14:03,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 14:14:03,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 14:14:03,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 14:14:03,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-04 14:14:03,208 INFO L87 Difference]: Start difference. First operand 190 states and 222 transitions. Second operand 7 states. [2020-09-04 14:14:03,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 14:14:03,825 INFO L93 Difference]: Finished difference Result 378 states and 453 transitions. [2020-09-04 14:14:03,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-04 14:14:03,826 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 81 [2020-09-04 14:14:03,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 14:14:03,831 INFO L225 Difference]: With dead ends: 378 [2020-09-04 14:14:03,831 INFO L226 Difference]: Without dead ends: 208 [2020-09-04 14:14:03,833 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 [2020-09-04 14:14:03,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-09-04 14:14:03,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 196. [2020-09-04 14:14:03,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-09-04 14:14:03,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 228 transitions. [2020-09-04 14:14:03,871 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 228 transitions. Word has length 81 [2020-09-04 14:14:03,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 14:14:03,871 INFO L479 AbstractCegarLoop]: Abstraction has 196 states and 228 transitions. [2020-09-04 14:14:03,872 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 14:14:03,872 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 228 transitions. [2020-09-04 14:14:03,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-09-04 14:14:03,873 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 14:14:03,873 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] [2020-09-04 14:14:03,873 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 14:14:03,874 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 14:14:03,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 14:14:03,874 INFO L82 PathProgramCache]: Analyzing trace with hash 275916027, now seen corresponding path program 1 times [2020-09-04 14:14:03,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 14:14:03,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192930012] [2020-09-04 14:14:03,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 14:14:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:04,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 14:14:04,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:04,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 14:14:04,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:04,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 14:14:04,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:04,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 14:14:04,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:04,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-04 14:14:04,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:04,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 14:14:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:04,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 14:14:04,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:04,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 14:14:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:04,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-04 14:14:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:04,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-04 14:14:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:04,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 14:14:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:04,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-04 14:14:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:04,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 14:14:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:04,720 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 14:14:04,720 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192930012] [2020-09-04 14:14:04,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 14:14:04,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-04 14:14:04,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098312594] [2020-09-04 14:14:04,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-04 14:14:04,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 14:14:04,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-04 14:14:04,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2020-09-04 14:14:04,724 INFO L87 Difference]: Start difference. First operand 196 states and 228 transitions. Second operand 15 states. [2020-09-04 14:14:06,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 14:14:06,452 INFO L93 Difference]: Finished difference Result 317 states and 360 transitions. [2020-09-04 14:14:06,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-04 14:14:06,453 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 81 [2020-09-04 14:14:06,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 14:14:06,455 INFO L225 Difference]: With dead ends: 317 [2020-09-04 14:14:06,455 INFO L226 Difference]: Without dead ends: 168 [2020-09-04 14:14:06,456 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=113, Invalid=757, Unknown=0, NotChecked=0, Total=870 [2020-09-04 14:14:06,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-09-04 14:14:06,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 148. [2020-09-04 14:14:06,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-09-04 14:14:06,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 166 transitions. [2020-09-04 14:14:06,472 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 166 transitions. Word has length 81 [2020-09-04 14:14:06,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 14:14:06,473 INFO L479 AbstractCegarLoop]: Abstraction has 148 states and 166 transitions. [2020-09-04 14:14:06,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-04 14:14:06,473 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 166 transitions. [2020-09-04 14:14:06,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-04 14:14:06,474 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 14:14:06,474 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] [2020-09-04 14:14:06,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 14:14:06,475 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 14:14:06,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 14:14:06,475 INFO L82 PathProgramCache]: Analyzing trace with hash 93135667, now seen corresponding path program 1 times [2020-09-04 14:14:06,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 14:14:06,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746960303] [2020-09-04 14:14:06,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 14:14:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:06,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 14:14:06,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:06,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 14:14:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:06,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 14:14:06,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:06,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 14:14:06,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:06,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-04 14:14:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:06,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 14:14:06,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:06,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 14:14:06,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:06,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 14:14:06,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:06,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-04 14:14:06,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:06,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-04 14:14:06,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:06,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 14:14:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:06,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-09-04 14:14:06,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:06,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 14:14:06,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:06,887 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-04 14:14:06,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746960303] [2020-09-04 14:14:06,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 14:14:06,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 14:14:06,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026355412] [2020-09-04 14:14:06,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 14:14:06,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 14:14:06,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 14:14:06,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-04 14:14:06,890 INFO L87 Difference]: Start difference. First operand 148 states and 166 transitions. Second operand 9 states. [2020-09-04 14:14:07,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 14:14:07,255 INFO L93 Difference]: Finished difference Result 150 states and 167 transitions. [2020-09-04 14:14:07,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-04 14:14:07,256 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-09-04 14:14:07,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 14:14:07,257 INFO L225 Difference]: With dead ends: 150 [2020-09-04 14:14:07,258 INFO L226 Difference]: Without dead ends: 138 [2020-09-04 14:14:07,258 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 [2020-09-04 14:14:07,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-09-04 14:14:07,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2020-09-04 14:14:07,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-09-04 14:14:07,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 155 transitions. [2020-09-04 14:14:07,271 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 155 transitions. Word has length 83 [2020-09-04 14:14:07,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 14:14:07,272 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 155 transitions. [2020-09-04 14:14:07,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 14:14:07,272 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 155 transitions. [2020-09-04 14:14:07,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-09-04 14:14:07,273 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 14:14:07,273 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] [2020-09-04 14:14:07,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-04 14:14:07,274 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 14:14:07,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 14:14:07,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1587921817, now seen corresponding path program 1 times [2020-09-04 14:14:07,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 14:14:07,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944539413] [2020-09-04 14:14:07,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 14:14:07,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:07,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 14:14:07,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:07,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 14:14:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:07,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 14:14:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:07,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 14:14:07,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:07,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-04 14:14:07,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:07,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 14:14:07,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:07,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 14:14:07,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:07,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 14:14:07,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:07,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-04 14:14:07,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:07,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-04 14:14:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:07,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 14:14:07,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:07,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-04 14:14:07,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:07,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 14:14:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:07,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 14:14:07,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:07,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 14:14:07,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:07,706 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 29 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-04 14:14:07,707 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944539413] [2020-09-04 14:14:07,707 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611152079] [2020-09-04 14:14:07,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 14:14:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 14:14:07,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 14 conjunts are in the unsatisfiable core [2020-09-04 14:14:07,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 14:14:08,063 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-04 14:14:08,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 14:14:08,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 8 [2020-09-04 14:14:08,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951225026] [2020-09-04 14:14:08,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 14:14:08,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 14:14:08,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 14:14:08,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-04 14:14:08,066 INFO L87 Difference]: Start difference. First operand 138 states and 155 transitions. Second operand 6 states. [2020-09-04 14:14:08,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 14:14:08,227 INFO L93 Difference]: Finished difference Result 138 states and 155 transitions. [2020-09-04 14:14:08,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-04 14:14:08,228 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 112 [2020-09-04 14:14:08,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 14:14:08,229 INFO L225 Difference]: With dead ends: 138 [2020-09-04 14:14:08,229 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 14:14:08,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 149 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-09-04 14:14:08,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 14:14:08,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 14:14:08,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 14:14:08,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 14:14:08,231 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 112 [2020-09-04 14:14:08,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 14:14:08,232 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 14:14:08,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 14:14:08,232 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 14:14:08,232 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 14:14:08,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2020-09-04 14:14:08,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 14:14:09,919 INFO L268 CegarLoopResult]: For program point L4992-2(lines 4989 4998) no Hoare annotation was computed. [2020-09-04 14:14:09,920 INFO L268 CegarLoopResult]: For program point L4992(lines 4992 4995) no Hoare annotation was computed. [2020-09-04 14:14:09,920 INFO L268 CegarLoopResult]: For program point ldv_module_getEXIT(lines 4989 4998) no Hoare annotation was computed. [2020-09-04 14:14:09,920 INFO L268 CegarLoopResult]: For program point ldv_module_getENTRY(lines 4989 4998) no Hoare annotation was computed. [2020-09-04 14:14:09,920 INFO L268 CegarLoopResult]: For program point kfreeEXIT(lines 5114 5116) no Hoare annotation was computed. [2020-09-04 14:14:09,920 INFO L268 CegarLoopResult]: For program point kfreeENTRY(lines 5114 5116) no Hoare annotation was computed. [2020-09-04 14:14:09,920 INFO L268 CegarLoopResult]: For program point kfreeFINAL(lines 5114 5116) no Hoare annotation was computed. [2020-09-04 14:14:09,920 INFO L268 CegarLoopResult]: For program point might_faultFINAL(lines 5093 5095) no Hoare annotation was computed. [2020-09-04 14:14:09,921 INFO L268 CegarLoopResult]: For program point might_faultEXIT(lines 5093 5095) no Hoare annotation was computed. [2020-09-04 14:14:09,921 INFO L268 CegarLoopResult]: For program point lock_sockENTRY(lines 4708 4716) no Hoare annotation was computed. [2020-09-04 14:14:09,921 INFO L268 CegarLoopResult]: For program point lock_sockFINAL(lines 4708 4716) no Hoare annotation was computed. [2020-09-04 14:14:09,921 INFO L268 CegarLoopResult]: For program point L4712(line 4712) no Hoare annotation was computed. [2020-09-04 14:14:09,921 INFO L268 CegarLoopResult]: For program point lock_sockEXIT(lines 4708 4716) no Hoare annotation was computed. [2020-09-04 14:14:09,921 INFO L268 CegarLoopResult]: For program point L4788-1(lines 4783 4859) no Hoare annotation was computed. [2020-09-04 14:14:09,921 INFO L268 CegarLoopResult]: For program point L4788(line 4788) no Hoare annotation was computed. [2020-09-04 14:14:09,922 INFO L268 CegarLoopResult]: For program point L4797(lines 4797 4800) no Hoare annotation was computed. [2020-09-04 14:14:09,922 INFO L268 CegarLoopResult]: For program point L4793(lines 4792 4853) no Hoare annotation was computed. [2020-09-04 14:14:09,922 INFO L268 CegarLoopResult]: For program point pppox_ioctlFINAL(lines 4774 4860) no Hoare annotation was computed. [2020-09-04 14:14:09,922 INFO L268 CegarLoopResult]: For program point L4794(lines 4794 4852) no Hoare annotation was computed. [2020-09-04 14:14:09,922 INFO L268 CegarLoopResult]: For program point L4856(line 4856) no Hoare annotation was computed. [2020-09-04 14:14:09,922 INFO L268 CegarLoopResult]: For program point L4786(line 4786) no Hoare annotation was computed. [2020-09-04 14:14:09,922 INFO L268 CegarLoopResult]: For program point L4786-1(line 4786) no Hoare annotation was computed. [2020-09-04 14:14:09,922 INFO L268 CegarLoopResult]: For program point L4807(lines 4807 4831) no Hoare annotation was computed. [2020-09-04 14:14:09,923 INFO L268 CegarLoopResult]: For program point pppox_ioctlEXIT(lines 4774 4860) no Hoare annotation was computed. [2020-09-04 14:14:09,923 INFO L268 CegarLoopResult]: For program point L4803(line 4803) no Hoare annotation was computed. [2020-09-04 14:14:09,923 INFO L268 CegarLoopResult]: For program point L4803-1(line 4803) no Hoare annotation was computed. [2020-09-04 14:14:09,923 INFO L268 CegarLoopResult]: For program point pppox_ioctlENTRY(lines 4774 4860) no Hoare annotation was computed. [2020-09-04 14:14:09,923 INFO L268 CegarLoopResult]: For program point L4832(lines 4794 4851) no Hoare annotation was computed. [2020-09-04 14:14:09,923 INFO L268 CegarLoopResult]: For program point L4791(lines 4790 4853) no Hoare annotation was computed. [2020-09-04 14:14:09,923 INFO L268 CegarLoopResult]: For program point L4845(line 4845) no Hoare annotation was computed. [2020-09-04 14:14:09,924 INFO L268 CegarLoopResult]: For program point L4845-1(line 4845) no Hoare annotation was computed. [2020-09-04 14:14:09,924 INFO L268 CegarLoopResult]: For program point L4841(lines 4841 4850) no Hoare annotation was computed. [2020-09-04 14:14:09,924 INFO L268 CegarLoopResult]: For program point L4804-1(line 4804) no Hoare annotation was computed. [2020-09-04 14:14:09,924 INFO L268 CegarLoopResult]: For program point L4804(line 4804) no Hoare annotation was computed. [2020-09-04 14:14:09,924 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 4922 4980) no Hoare annotation was computed. [2020-09-04 14:14:09,924 INFO L268 CegarLoopResult]: For program point L4945(lines 4945 4959) no Hoare annotation was computed. [2020-09-04 14:14:09,924 INFO L268 CegarLoopResult]: For program point L4976(line 4976) no Hoare annotation was computed. [2020-09-04 14:14:09,925 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 4922 4980) no Hoare annotation was computed. [2020-09-04 14:14:09,925 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))) [2020-09-04 14:14:09,925 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))) [2020-09-04 14:14:09,925 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))) [2020-09-04 14:14:09,926 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))) [2020-09-04 14:14:09,926 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))) [2020-09-04 14:14:09,926 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))) [2020-09-04 14:14:09,926 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))) [2020-09-04 14:14:09,926 INFO L268 CegarLoopResult]: For program point L4952(line 4952) no Hoare annotation was computed. [2020-09-04 14:14:09,926 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))) [2020-09-04 14:14:09,927 INFO L268 CegarLoopResult]: For program point L4934(line 4934) no Hoare annotation was computed. [2020-09-04 14:14:09,927 INFO L268 CegarLoopResult]: For program point L4936(lines 4936 4939) no Hoare annotation was computed. [2020-09-04 14:14:09,927 INFO L268 CegarLoopResult]: For program point L4965(lines 4965 4969) no Hoare annotation was computed. [2020-09-04 14:14:09,927 INFO L268 CegarLoopResult]: For program point L5006(lines 5006 5011) no Hoare annotation was computed. [2020-09-04 14:14:09,927 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))) [2020-09-04 14:14:09,927 INFO L268 CegarLoopResult]: For program point L5004-1(line 5004) no Hoare annotation was computed. [2020-09-04 14:14:09,928 INFO L268 CegarLoopResult]: For program point L5002(lines 5002 5013) no Hoare annotation was computed. [2020-09-04 14:14:09,928 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))) [2020-09-04 14:14:09,928 INFO L268 CegarLoopResult]: For program point ldv_try_module_getFINAL(lines 4999 5016) no Hoare annotation was computed. [2020-09-04 14:14:09,928 INFO L268 CegarLoopResult]: For program point ldv_try_module_getEXIT(lines 4999 5016) no Hoare annotation was computed. [2020-09-04 14:14:09,928 INFO L268 CegarLoopResult]: For program point lock_sock_nestedFINAL(lines 5090 5092) no Hoare annotation was computed. [2020-09-04 14:14:09,928 INFO L268 CegarLoopResult]: For program point lock_sock_nestedENTRY(lines 5090 5092) no Hoare annotation was computed. [2020-09-04 14:14:09,928 INFO L268 CegarLoopResult]: For program point lock_sock_nestedEXIT(lines 5090 5092) no Hoare annotation was computed. [2020-09-04 14:14:09,929 INFO L268 CegarLoopResult]: For program point ##fun~$Pointer$~X~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-09-04 14:14:09,929 INFO L268 CegarLoopResult]: For program point ##fun~$Pointer$~X~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-09-04 14:14:09,929 INFO L268 CegarLoopResult]: For program point ##fun~$Pointer$~X~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-09-04 14:14:09,929 INFO L271 CegarLoopResult]: At program point sock_unregisterENTRY(lines 5110 5112) the Hoare annotation is: true [2020-09-04 14:14:09,929 INFO L268 CegarLoopResult]: For program point sock_unregisterEXIT(lines 5110 5112) no Hoare annotation was computed. [2020-09-04 14:14:09,929 INFO L268 CegarLoopResult]: For program point sock_unregisterFINAL(lines 5110 5112) no Hoare annotation was computed. [2020-09-04 14:14:09,929 INFO L268 CegarLoopResult]: For program point pppox_skEXIT(lines 4718 4723) no Hoare annotation was computed. [2020-09-04 14:14:09,930 INFO L268 CegarLoopResult]: For program point pppox_skENTRY(lines 4718 4723) no Hoare annotation was computed. [2020-09-04 14:14:09,930 INFO L268 CegarLoopResult]: For program point pppox_skFINAL(lines 4718 4723) no Hoare annotation was computed. [2020-09-04 14:14:09,930 INFO L271 CegarLoopResult]: At program point ldv_undefined_intENTRY(lines 5087 5089) the Hoare annotation is: true [2020-09-04 14:14:09,930 INFO L268 CegarLoopResult]: For program point ldv_undefined_intEXIT(lines 5087 5089) no Hoare annotation was computed. [2020-09-04 14:14:09,930 INFO L268 CegarLoopResult]: For program point ldv_undefined_intFINAL(lines 5087 5089) no Hoare annotation was computed. [2020-09-04 14:14:09,930 INFO L268 CegarLoopResult]: For program point __request_moduleEXIT(lines 5080 5082) no Hoare annotation was computed. [2020-09-04 14:14:09,930 INFO L268 CegarLoopResult]: For program point __request_moduleENTRY(lines 5080 5082) no Hoare annotation was computed. [2020-09-04 14:14:09,930 INFO L268 CegarLoopResult]: For program point __request_moduleFINAL(lines 5080 5082) no Hoare annotation was computed. [2020-09-04 14:14:09,931 INFO L264 CegarLoopResult]: At program point L4895(lines 4864 4897) the Hoare annotation is: (or (= ~ldv_module_refcounter~0 |old(~ldv_module_refcounter~0)|) (not (= |old(~ldv_module_refcounter~0)| 1))) [2020-09-04 14:14:09,931 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$.offset| .cse2) .cse3))) (<= (+ .cse0 .cse1) (+ (* 18446744073709551616 (div (+ .cse0 .cse1 (- 1)) 18446744073709551616)) 18446744073709551615))))) (<= .cse5 ~ldv_module_refcounter~0) (not (= pppox_create_~tmp~2 0)) (<= ~ldv_module_refcounter~0 .cse5)))) [2020-09-04 14:14:09,931 INFO L268 CegarLoopResult]: For program point L4893-1(line 4893) no Hoare annotation was computed. [2020-09-04 14:14:09,931 INFO L268 CegarLoopResult]: For program point pppox_createFINAL(lines 4861 4898) no Hoare annotation was computed. [2020-09-04 14:14:09,931 INFO L268 CegarLoopResult]: For program point L4869(lines 4869 4872) no Hoare annotation was computed. [2020-09-04 14:14:09,931 INFO L268 CegarLoopResult]: For program point L4892-1(line 4892) no Hoare annotation was computed. [2020-09-04 14:14:09,932 INFO L264 CegarLoopResult]: At program point pppox_createENTRY(lines 4861 4898) the Hoare annotation is: (or (= ~ldv_module_refcounter~0 1) (not (= |old(~ldv_module_refcounter~0)| 1))) [2020-09-04 14:14:09,932 INFO L264 CegarLoopResult]: At program point L4892(line 4892) the Hoare annotation is: (or (not (= |old(~ldv_module_refcounter~0)| 1)) (let ((.cse5 (+ |old(~ldv_module_refcounter~0)| 1))) (and (let ((.cse4 (+ (* pppox_create_~protocol 8) |~#pppox_protos~0.offset|))) (let ((.cse2 (select (select |#memory_$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$.offset| .cse2) .cse3))) (<= (+ .cse0 .cse1) (+ (* 18446744073709551616 (div (+ .cse0 .cse1 (- 1)) 18446744073709551616)) 18446744073709551615))))) (<= .cse5 ~ldv_module_refcounter~0) (not (= pppox_create_~tmp~2 0)) (<= ~ldv_module_refcounter~0 .cse5)))) [2020-09-04 14:14:09,932 INFO L268 CegarLoopResult]: For program point L4886(lines 4886 4889) no Hoare annotation was computed. [2020-09-04 14:14:09,932 INFO L268 CegarLoopResult]: For program point L4884-1(line 4884) no Hoare annotation was computed. [2020-09-04 14:14:09,932 INFO L264 CegarLoopResult]: At program point L4884(line 4884) the Hoare annotation is: (or (not (= |old(~ldv_module_refcounter~0)| 1)) (let ((.cse2 (+ (* pppox_create_~protocol 8) |~#pppox_protos~0.offset|))) (let ((.cse0 (select (select |#memory_$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$.offset| .cse0) .cse1)) (= ~ldv_module_refcounter~0 1))))) [2020-09-04 14:14:09,933 INFO L268 CegarLoopResult]: For program point L4880(lines 4880 4890) no Hoare annotation was computed. [2020-09-04 14:14:09,933 INFO L268 CegarLoopResult]: For program point L4874(lines 4874 4879) no Hoare annotation was computed. [2020-09-04 14:14:09,933 INFO L268 CegarLoopResult]: For program point pppox_createEXIT(lines 4861 4898) no Hoare annotation was computed. [2020-09-04 14:14:09,933 INFO L268 CegarLoopResult]: For program point L4874-2(lines 4874 4879) no Hoare annotation was computed. [2020-09-04 14:14:09,933 INFO L268 CegarLoopResult]: For program point L4866(lines 4866 4872) no Hoare annotation was computed. [2020-09-04 14:14:09,933 INFO L271 CegarLoopResult]: At program point ldv_initializeFINAL(lines 5083 5085) the Hoare annotation is: true [2020-09-04 14:14:09,933 INFO L268 CegarLoopResult]: For program point ldv_initializeEXIT(lines 5083 5085) no Hoare annotation was computed. [2020-09-04 14:14:09,934 INFO L268 CegarLoopResult]: For program point ##fun~$Pointer$~X~$Pointer$~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-09-04 14:14:09,934 INFO L271 CegarLoopResult]: At program point ##fun~$Pointer$~X~$Pointer$~TO~intENTRY(line -1) the Hoare annotation is: true [2020-09-04 14:14:09,934 INFO L268 CegarLoopResult]: For program point ##fun~$Pointer$~X~$Pointer$~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-09-04 14:14:09,934 INFO L268 CegarLoopResult]: For program point ldv_module_put_and_exitEXIT(lines 5033 5042) no Hoare annotation was computed. [2020-09-04 14:14:09,934 INFO L268 CegarLoopResult]: For program point L5037(lines 5035 5041) no Hoare annotation was computed. [2020-09-04 14:14:09,934 INFO L268 CegarLoopResult]: For program point ldv_module_put_and_exitENTRY(lines 5033 5042) no Hoare annotation was computed. [2020-09-04 14:14:09,934 INFO L268 CegarLoopResult]: For program point unregister_pppox_protoEXIT(lines 4747 4759) no Hoare annotation was computed. [2020-09-04 14:14:09,934 INFO L268 CegarLoopResult]: For program point unregister_pppox_protoENTRY(lines 4747 4759) no Hoare annotation was computed. [2020-09-04 14:14:09,935 INFO L268 CegarLoopResult]: For program point L4751(lines 4751 4754) no Hoare annotation was computed. [2020-09-04 14:14:09,935 INFO L268 CegarLoopResult]: For program point L4750(lines 4750 4756) no Hoare annotation was computed. [2020-09-04 14:14:09,935 INFO L268 CegarLoopResult]: For program point L4750-1(lines 4747 4759) no Hoare annotation was computed. [2020-09-04 14:14:09,935 INFO L268 CegarLoopResult]: For program point pppox_exitEXIT(lines 4909 4917) no Hoare annotation was computed. [2020-09-04 14:14:09,935 INFO L271 CegarLoopResult]: At program point pppox_exitENTRY(lines 4909 4917) the Hoare annotation is: true [2020-09-04 14:14:09,935 INFO L268 CegarLoopResult]: For program point pppox_exitFINAL(lines 4909 4917) no Hoare annotation was computed. [2020-09-04 14:14:09,935 INFO L268 CegarLoopResult]: For program point pppox_unbind_sockEXIT(lines 4760 4773) no Hoare annotation was computed. [2020-09-04 14:14:09,935 INFO L268 CegarLoopResult]: For program point L4766(line 4766) no Hoare annotation was computed. [2020-09-04 14:14:09,936 INFO L268 CegarLoopResult]: For program point pppox_unbind_sockENTRY(lines 4760 4773) no Hoare annotation was computed. [2020-09-04 14:14:09,936 INFO L268 CegarLoopResult]: For program point L4763(lines 4763 4770) no Hoare annotation was computed. [2020-09-04 14:14:09,936 INFO L268 CegarLoopResult]: For program point L4765(line 4765) no Hoare annotation was computed. [2020-09-04 14:14:09,936 INFO L268 CegarLoopResult]: For program point L4766-1(line 4766) no Hoare annotation was computed. [2020-09-04 14:14:09,936 INFO L268 CegarLoopResult]: For program point L4765-1(line 4765) no Hoare annotation was computed. [2020-09-04 14:14:09,936 INFO L268 CegarLoopResult]: For program point L4763-2(lines 4760 4773) no Hoare annotation was computed. [2020-09-04 14:14:09,936 INFO L268 CegarLoopResult]: For program point ldv_module_refcountFINAL(lines 5043 5048) no Hoare annotation was computed. [2020-09-04 14:14:09,936 INFO L268 CegarLoopResult]: For program point ldv_module_refcountENTRY(lines 5043 5048) no Hoare annotation was computed. [2020-09-04 14:14:09,937 INFO L268 CegarLoopResult]: For program point ldv_module_refcountEXIT(lines 5043 5048) no Hoare annotation was computed. [2020-09-04 14:14:09,937 INFO L268 CegarLoopResult]: For program point release_sockENTRY(lines 5103 5105) no Hoare annotation was computed. [2020-09-04 14:14:09,937 INFO L268 CegarLoopResult]: For program point release_sockEXIT(lines 5103 5105) no Hoare annotation was computed. [2020-09-04 14:14:09,937 INFO L268 CegarLoopResult]: For program point release_sockFINAL(lines 5103 5105) no Hoare annotation was computed. [2020-09-04 14:14:09,937 INFO L268 CegarLoopResult]: For program point L4735(lines 4735 4738) no Hoare annotation was computed. [2020-09-04 14:14:09,937 INFO L268 CegarLoopResult]: For program point L4732(lines 4732 4738) no Hoare annotation was computed. [2020-09-04 14:14:09,937 INFO L268 CegarLoopResult]: For program point register_pppox_protoEXIT(lines 4729 4746) no Hoare annotation was computed. [2020-09-04 14:14:09,937 INFO L268 CegarLoopResult]: For program point register_pppox_protoENTRY(lines 4729 4746) no Hoare annotation was computed. [2020-09-04 14:14:09,938 INFO L268 CegarLoopResult]: For program point L4739(lines 4739 4742) no Hoare annotation was computed. [2020-09-04 14:14:09,938 INFO L268 CegarLoopResult]: For program point register_pppox_protoFINAL(lines 4729 4746) no Hoare annotation was computed. [2020-09-04 14:14:09,938 INFO L268 CegarLoopResult]: For program point pppox_initFINAL(lines 4900 4908) no Hoare annotation was computed. [2020-09-04 14:14:09,938 INFO L268 CegarLoopResult]: For program point L4904-1(line 4904) no Hoare annotation was computed. [2020-09-04 14:14:09,938 INFO L271 CegarLoopResult]: At program point pppox_initENTRY(lines 4900 4908) the Hoare annotation is: true [2020-09-04 14:14:09,938 INFO L271 CegarLoopResult]: At program point L4904(line 4904) the Hoare annotation is: true [2020-09-04 14:14:09,938 INFO L268 CegarLoopResult]: For program point pppox_initEXIT(lines 4900 4908) no Hoare annotation was computed. [2020-09-04 14:14:09,939 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-04 14:14:09,939 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |~#pppox_protos~0.offset| |old(~#pppox_protos~0.offset)|) (= |old(#length)| |#length|) (= |old(#t~string32.offset)| |#t~string32.offset|) (= ~ldv_module_refcounter~0 |old(~ldv_module_refcounter~0)|) (= |old(~#pppox_protos~0.base)| |~#pppox_protos~0.base|) (= |old(#t~string32.base)| |#t~string32.base|) (= |~#pppox_proto_family~0.offset| |old(~#pppox_proto_family~0.offset)|) (= |old(~LDV_IN_INTERRUPT~0)| ~LDV_IN_INTERRUPT~0) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |old(~#pppox_proto_family~0.base)| |~#pppox_proto_family~0.base|)) [2020-09-04 14:14:09,939 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-04 14:14:09,939 INFO L271 CegarLoopResult]: At program point ldv_check_final_stateENTRY(lines 5049 5060) the Hoare annotation is: true [2020-09-04 14:14:09,939 INFO L264 CegarLoopResult]: At program point L5054(line 5054) the Hoare annotation is: (not (= ~ldv_module_refcounter~0 1)) [2020-09-04 14:14:09,939 INFO L268 CegarLoopResult]: For program point L5052(lines 5049 5060) no Hoare annotation was computed. [2020-09-04 14:14:09,940 INFO L268 CegarLoopResult]: For program point ldv_check_final_stateEXIT(lines 5049 5060) no Hoare annotation was computed. [2020-09-04 14:14:09,940 INFO L268 CegarLoopResult]: For program point ppp_unregister_channelEXIT(lines 5100 5102) no Hoare annotation was computed. [2020-09-04 14:14:09,940 INFO L268 CegarLoopResult]: For program point ppp_unregister_channelENTRY(lines 5100 5102) no Hoare annotation was computed. [2020-09-04 14:14:09,940 INFO L268 CegarLoopResult]: For program point ppp_unregister_channelFINAL(lines 5100 5102) no Hoare annotation was computed. [2020-09-04 14:14:09,940 INFO L268 CegarLoopResult]: For program point ppp_channel_indexENTRY(lines 5097 5099) no Hoare annotation was computed. [2020-09-04 14:14:09,940 INFO L268 CegarLoopResult]: For program point ppp_channel_indexEXIT(lines 5097 5099) no Hoare annotation was computed. [2020-09-04 14:14:09,940 INFO L268 CegarLoopResult]: For program point ppp_channel_indexFINAL(lines 5097 5099) no Hoare annotation was computed. [2020-09-04 14:14:09,941 INFO L268 CegarLoopResult]: For program point ldv_try_module_get_1FINAL(lines 5061 5069) no Hoare annotation was computed. [2020-09-04 14:14:09,941 INFO L268 CegarLoopResult]: For program point ldv_try_module_get_1EXIT(lines 5061 5069) no Hoare annotation was computed. [2020-09-04 14:14:09,941 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))) [2020-09-04 14:14:09,941 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))) [2020-09-04 14:14:09,941 INFO L268 CegarLoopResult]: For program point L5065-1(line 5065) no Hoare annotation was computed. [2020-09-04 14:14:09,941 INFO L271 CegarLoopResult]: At program point sock_registerENTRY(lines 5107 5109) the Hoare annotation is: true [2020-09-04 14:14:09,942 INFO L268 CegarLoopResult]: For program point sock_registerEXIT(lines 5107 5109) no Hoare annotation was computed. [2020-09-04 14:14:09,942 INFO L268 CegarLoopResult]: For program point sock_registerFINAL(lines 5107 5109) no Hoare annotation was computed. [2020-09-04 14:14:09,942 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-04 14:14:09,942 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (= ~ldv_module_refcounter~0 1) [2020-09-04 14:14:09,942 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 14:14:09,942 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-04 14:14:09,942 INFO L264 CegarLoopResult]: At program point L5023(line 5023) the Hoare annotation is: (not (<= 2 |old(~ldv_module_refcounter~0)|)) [2020-09-04 14:14:09,943 INFO L268 CegarLoopResult]: For program point L5020-2(lines 5017 5032) no Hoare annotation was computed. [2020-09-04 14:14:09,943 INFO L268 CegarLoopResult]: For program point L5021(lines 5021 5026) no Hoare annotation was computed. [2020-09-04 14:14:09,943 INFO L268 CegarLoopResult]: For program point L5020(lines 5020 5029) no Hoare annotation was computed. [2020-09-04 14:14:09,943 INFO L268 CegarLoopResult]: For program point L5021-1(lines 5021 5026) no Hoare annotation was computed. [2020-09-04 14:14:09,943 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)|)) [2020-09-04 14:14:09,943 INFO L268 CegarLoopResult]: For program point ldv_module_putEXIT(lines 5017 5032) no Hoare annotation was computed. [2020-09-04 14:14:09,943 INFO L271 CegarLoopResult]: At program point ldv_blast_assertENTRY(lines 4981 4986) the Hoare annotation is: true [2020-09-04 14:14:09,943 INFO L268 CegarLoopResult]: For program point ldv_blast_assertEXIT(lines 4981 4986) no Hoare annotation was computed. [2020-09-04 14:14:09,944 INFO L268 CegarLoopResult]: For program point ldv_blast_assertFINAL(lines 4981 4986) no Hoare annotation was computed. [2020-09-04 14:14:09,944 INFO L268 CegarLoopResult]: For program point ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4984) no Hoare annotation was computed. [2020-09-04 14:14:09,944 INFO L268 CegarLoopResult]: For program point ldv_module_put_2FINAL(lines 5070 5078) no Hoare annotation was computed. [2020-09-04 14:14:09,944 INFO L268 CegarLoopResult]: For program point ldv_module_put_2EXIT(lines 5070 5078) no Hoare annotation was computed. [2020-09-04 14:14:09,944 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)|)) [2020-09-04 14:14:09,944 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)|))) [2020-09-04 14:14:09,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 02:14:09 BoogieIcfgContainer [2020-09-04 14:14:09,964 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 14:14:09,968 INFO L168 Benchmark]: Toolchain (without parser) took 14496.77 ms. Allocated memory was 139.5 MB in the beginning and 418.9 MB in the end (delta: 279.4 MB). Free memory was 96.3 MB in the beginning and 329.1 MB in the end (delta: -232.8 MB). Peak memory consumption was 296.2 MB. Max. memory is 7.1 GB. [2020-09-04 14:14:09,969 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 14:14:09,970 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1473.38 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 96.1 MB in the beginning and 127.4 MB in the end (delta: -31.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. [2020-09-04 14:14:09,970 INFO L168 Benchmark]: Boogie Preprocessor took 137.12 ms. Allocated memory is still 204.5 MB. Free memory was 127.4 MB in the beginning and 123.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2020-09-04 14:14:09,971 INFO L168 Benchmark]: RCFGBuilder took 856.35 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 123.7 MB in the beginning and 176.0 MB in the end (delta: -52.3 MB). Peak memory consumption was 51.8 MB. Max. memory is 7.1 GB. [2020-09-04 14:14:09,972 INFO L168 Benchmark]: TraceAbstraction took 12021.52 ms. Allocated memory was 237.5 MB in the beginning and 418.9 MB in the end (delta: 181.4 MB). Free memory was 176.0 MB in the beginning and 329.1 MB in the end (delta: -153.1 MB). Peak memory consumption was 277.8 MB. Max. memory is 7.1 GB. [2020-09-04 14:14:09,976 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1473.38 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 96.1 MB in the beginning and 127.4 MB in the end (delta: -31.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 137.12 ms. Allocated memory is still 204.5 MB. Free memory was 127.4 MB in the beginning and 123.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 856.35 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 123.7 MB in the beginning and 176.0 MB in the end (delta: -52.3 MB). Peak memory consumption was 51.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12021.52 ms. Allocated memory was 237.5 MB in the beginning and 418.9 MB in the end (delta: 181.4 MB). Free memory was 176.0 MB in the beginning and 329.1 MB in the end (delta: -153.1 MB). Peak memory consumption was 277.8 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 == \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) - 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: 10.4s, OverallIterations: 8, TraceHistogramMax: 2, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 647 SDtfs, 896 SDslu, 1104 SDs, 0 SdLazy, 2709 SolverSat, 389 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 386 GetRequests, 297 SyntacticMatches, 2 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 2.0s 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, 254 NumberOfFragments, 551 HoareAnnotationTreeSize, 234 FomulaSimplifications, 3048 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 35 FomulaSimplificationsInter, 1597 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 677 NumberOfCodeBlocks, 677 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 668 ConstructedInterpolants, 0 QuantifiedInterpolants, 184712 SizeOfPredicates, 4 NumberOfNonLiveVariables, 566 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 85/88 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...