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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 23:36:08,992 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 23:36:08,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 23:36:09,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 23:36:09,007 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 23:36:09,008 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 23:36:09,009 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 23:36:09,011 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 23:36:09,013 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 23:36:09,013 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 23:36:09,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 23:36:09,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 23:36:09,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 23:36:09,017 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 23:36:09,018 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 23:36:09,019 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 23:36:09,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 23:36:09,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 23:36:09,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 23:36:09,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 23:36:09,026 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 23:36:09,027 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 23:36:09,028 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 23:36:09,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 23:36:09,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 23:36:09,031 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 23:36:09,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 23:36:09,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 23:36:09,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 23:36:09,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 23:36:09,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 23:36:09,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 23:36:09,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 23:36:09,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 23:36:09,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 23:36:09,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 23:36:09,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 23:36:09,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 23:36:09,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 23:36:09,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 23:36:09,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 23:36:09,041 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-02 23:36:09,058 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 23:36:09,058 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 23:36:09,058 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-02 23:36:09,059 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-02 23:36:09,059 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-02 23:36:09,059 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-02 23:36:09,060 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-02 23:36:09,060 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-02 23:36:09,060 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-02 23:36:09,060 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-02 23:36:09,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 23:36:09,061 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 23:36:09,061 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 23:36:09,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 23:36:09,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 23:36:09,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 23:36:09,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 23:36:09,062 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 23:36:09,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 23:36:09,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 23:36:09,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 23:36:09,063 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-02 23:36:09,063 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 23:36:09,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 23:36:09,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 23:36:09,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 23:36:09,064 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-02 23:36:09,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 23:36:09,065 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 23:36:09,065 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-02 23:36:09,092 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 23:36:09,107 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 23:36:09,111 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 23:36:09,113 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 23:36:09,115 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 23:36:09,116 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2019-10-02 23:36:09,190 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80e4831a0/c636c95001e14d7986858cfa4cfca005/FLAG75b11b6aa [2019-10-02 23:36:09,951 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 23:36:09,951 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2019-10-02 23:36:09,992 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80e4831a0/c636c95001e14d7986858cfa4cfca005/FLAG75b11b6aa [2019-10-02 23:36:10,021 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80e4831a0/c636c95001e14d7986858cfa4cfca005 [2019-10-02 23:36:10,031 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 23:36:10,032 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 23:36:10,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 23:36:10,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 23:36:10,038 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 23:36:10,039 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 11:36:10" (1/1) ... [2019-10-02 23:36:10,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72a19ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:36:10, skipping insertion in model container [2019-10-02 23:36:10,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 11:36:10" (1/1) ... [2019-10-02 23:36:10,050 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 23:36:10,142 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 23:36:11,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 23:36:11,103 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 23:36:11,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 23:36:11,428 INFO L192 MainTranslator]: Completed translation [2019-10-02 23:36:11,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:36:11 WrapperNode [2019-10-02 23:36:11,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 23:36:11,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 23:36:11,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 23:36:11,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 23:36:11,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:36:11" (1/1) ... [2019-10-02 23:36:11,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:36:11" (1/1) ... [2019-10-02 23:36:11,490 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:36:11" (1/1) ... [2019-10-02 23:36:11,491 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:36:11" (1/1) ... [2019-10-02 23:36:11,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:36:11" (1/1) ... [2019-10-02 23:36:11,542 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:36:11" (1/1) ... [2019-10-02 23:36:11,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:36:11" (1/1) ... [2019-10-02 23:36:11,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 23:36:11,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 23:36:11,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 23:36:11,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 23:36:11,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:36:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2019-10-02 23:36:11,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 23:36:11,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 23:36:11,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-10-02 23:36:11,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-02 23:36:11,630 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock [2019-10-02 23:36:11,630 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_sk [2019-10-02 23:36:11,630 INFO L138 BoogieDeclarations]: Found implementation of procedure register_pppox_proto [2019-10-02 23:36:11,630 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pppox_proto [2019-10-02 23:36:11,631 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_unbind_sock [2019-10-02 23:36:11,631 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_ioctl [2019-10-02 23:36:11,631 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_create [2019-10-02 23:36:11,631 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_init [2019-10-02 23:36:11,631 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_exit [2019-10-02 23:36:11,631 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 23:36:11,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-10-02 23:36:11,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-10-02 23:36:11,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-10-02 23:36:11,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-10-02 23:36:11,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-10-02 23:36:11,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-10-02 23:36:11,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-02 23:36:11,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2019-10-02 23:36:11,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2019-10-02 23:36:11,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2019-10-02 23:36:11,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-02 23:36:11,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_int [2019-10-02 23:36:11,634 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock_nested [2019-10-02 23:36:11,634 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-02 23:36:11,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_index [2019-10-02 23:36:11,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2019-10-02 23:36:11,634 INFO L138 BoogieDeclarations]: Found implementation of procedure release_sock [2019-10-02 23:36:11,635 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_register [2019-10-02 23:36:11,635 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_unregister [2019-10-02 23:36:11,635 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-02 23:36:11,635 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-02 23:36:11,635 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 23:36:11,636 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-02 23:36:11,636 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2019-10-02 23:36:11,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2019-10-02 23:36:11,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2019-10-02 23:36:11,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-10-02 23:36:11,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-10-02 23:36:11,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-10-02 23:36:11,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-10-02 23:36:11,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-10-02 23:36:11,637 INFO L130 BoogieDeclarations]: Found specification of procedure sock_register [2019-10-02 23:36:11,637 INFO L130 BoogieDeclarations]: Found specification of procedure sock_unregister [2019-10-02 23:36:11,638 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2019-10-02 23:36:11,638 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_index [2019-10-02 23:36:11,638 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock_nested [2019-10-02 23:36:11,638 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock [2019-10-02 23:36:11,638 INFO L130 BoogieDeclarations]: Found specification of procedure release_sock [2019-10-02 23:36:11,638 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_sk [2019-10-02 23:36:11,639 INFO L130 BoogieDeclarations]: Found specification of procedure register_pppox_proto [2019-10-02 23:36:11,639 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pppox_proto [2019-10-02 23:36:11,639 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_unbind_sock [2019-10-02 23:36:11,639 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_ioctl [2019-10-02 23:36:11,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-02 23:36:11,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-02 23:36:11,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 23:36:11,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 23:36:11,640 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-10-02 23:36:11,640 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_create [2019-10-02 23:36:11,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 23:36:11,641 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-02 23:36:11,641 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_init [2019-10-02 23:36:11,641 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_exit [2019-10-02 23:36:11,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-02 23:36:11,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-02 23:36:11,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 23:36:11,642 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 23:36:11,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-10-02 23:36:11,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_int [2019-10-02 23:36:11,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-02 23:36:11,642 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-02 23:36:11,643 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-02 23:36:11,643 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-02 23:36:11,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 23:36:11,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 23:36:11,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-02 23:36:11,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-02 23:36:11,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 23:36:11,996 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-02 23:36:12,090 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-10-02 23:36:12,090 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-10-02 23:36:12,090 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-10-02 23:36:12,091 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-10-02 23:36:12,092 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-02 23:36:12,121 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2019-10-02 23:36:12,121 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2019-10-02 23:36:12,261 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-10-02 23:36:12,391 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 23:36:12,391 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-02 23:36:12,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:36:12 BoogieIcfgContainer [2019-10-02 23:36:12,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 23:36:12,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 23:36:12,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 23:36:12,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 23:36:12,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 11:36:10" (1/3) ... [2019-10-02 23:36:12,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ccbfe00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 11:36:12, skipping insertion in model container [2019-10-02 23:36:12,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:36:11" (2/3) ... [2019-10-02 23:36:12,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ccbfe00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 11:36:12, skipping insertion in model container [2019-10-02 23:36:12,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:36:12" (3/3) ... [2019-10-02 23:36:12,402 INFO L109 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-pppox.ko.cil.out.i [2019-10-02 23:36:12,410 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 23:36:12,418 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 23:36:12,432 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 23:36:12,489 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 23:36:12,490 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-02 23:36:12,490 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 23:36:12,490 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 23:36:12,490 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 23:36:12,490 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 23:36:12,490 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 23:36:12,491 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 23:36:12,508 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states. [2019-10-02 23:36:12,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-02 23:36:12,518 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:36:12,519 INFO L411 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] [2019-10-02 23:36:12,521 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:36:12,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:36:12,525 INFO L82 PathProgramCache]: Analyzing trace with hash 331943302, now seen corresponding path program 1 times [2019-10-02 23:36:12,528 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:36:12,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:36:12,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:36:12,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:36:12,602 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:36:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:36:12,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 23:36:12,811 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:36:12,811 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 23:36:12,812 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:36:12,818 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 23:36:12,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 23:36:12,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 23:36:12,837 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 3 states. [2019-10-02 23:36:12,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:36:12,925 INFO L93 Difference]: Finished difference Result 151 states and 175 transitions. [2019-10-02 23:36:12,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 23:36:12,928 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-10-02 23:36:12,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:36:12,949 INFO L225 Difference]: With dead ends: 151 [2019-10-02 23:36:12,949 INFO L226 Difference]: Without dead ends: 135 [2019-10-02 23:36:12,962 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 23:36:12,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2019-10-02 23:36:13,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 132. [2019-10-02 23:36:13,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-10-02 23:36:13,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 154 transitions. [2019-10-02 23:36:13,032 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 154 transitions. Word has length 24 [2019-10-02 23:36:13,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:36:13,032 INFO L475 AbstractCegarLoop]: Abstraction has 132 states and 154 transitions. [2019-10-02 23:36:13,033 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 23:36:13,033 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 154 transitions. [2019-10-02 23:36:13,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-02 23:36:13,037 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:36:13,037 INFO L411 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] [2019-10-02 23:36:13,038 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:36:13,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:36:13,038 INFO L82 PathProgramCache]: Analyzing trace with hash 221804231, now seen corresponding path program 1 times [2019-10-02 23:36:13,038 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:36:13,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:36:13,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:36:13,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:36:13,048 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:36:13,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:36:13,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 23:36:13,272 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:36:13,272 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-02 23:36:13,272 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:36:13,274 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-02 23:36:13,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-02 23:36:13,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-02 23:36:13,275 INFO L87 Difference]: Start difference. First operand 132 states and 154 transitions. Second operand 7 states. [2019-10-02 23:36:13,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:36:13,343 INFO L93 Difference]: Finished difference Result 129 states and 150 transitions. [2019-10-02 23:36:13,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-02 23:36:13,344 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-10-02 23:36:13,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:36:13,347 INFO L225 Difference]: With dead ends: 129 [2019-10-02 23:36:13,347 INFO L226 Difference]: Without dead ends: 129 [2019-10-02 23:36:13,348 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-02 23:36:13,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-10-02 23:36:13,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 123. [2019-10-02 23:36:13,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-10-02 23:36:13,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 143 transitions. [2019-10-02 23:36:13,366 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 143 transitions. Word has length 56 [2019-10-02 23:36:13,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:36:13,366 INFO L475 AbstractCegarLoop]: Abstraction has 123 states and 143 transitions. [2019-10-02 23:36:13,366 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-02 23:36:13,366 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 143 transitions. [2019-10-02 23:36:13,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-10-02 23:36:13,369 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:36:13,369 INFO L411 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] [2019-10-02 23:36:13,372 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:36:13,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:36:13,373 INFO L82 PathProgramCache]: Analyzing trace with hash 427901411, now seen corresponding path program 1 times [2019-10-02 23:36:13,373 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:36:13,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:36:13,383 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:36:13,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:36:13,384 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:36:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:36:13,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 23:36:13,643 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:36:13,643 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-02 23:36:13,643 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:36:13,644 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-02 23:36:13,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-02 23:36:13,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-02 23:36:13,645 INFO L87 Difference]: Start difference. First operand 123 states and 143 transitions. Second operand 7 states. [2019-10-02 23:36:14,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:36:14,134 INFO L93 Difference]: Finished difference Result 207 states and 239 transitions. [2019-10-02 23:36:14,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-02 23:36:14,135 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 62 [2019-10-02 23:36:14,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:36:14,141 INFO L225 Difference]: With dead ends: 207 [2019-10-02 23:36:14,141 INFO L226 Difference]: Without dead ends: 207 [2019-10-02 23:36:14,142 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-10-02 23:36:14,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2019-10-02 23:36:14,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 190. [2019-10-02 23:36:14,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2019-10-02 23:36:14,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 224 transitions. [2019-10-02 23:36:14,185 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 224 transitions. Word has length 62 [2019-10-02 23:36:14,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:36:14,188 INFO L475 AbstractCegarLoop]: Abstraction has 190 states and 224 transitions. [2019-10-02 23:36:14,188 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-02 23:36:14,188 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 224 transitions. [2019-10-02 23:36:14,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-10-02 23:36:14,192 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:36:14,192 INFO L411 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] [2019-10-02 23:36:14,194 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:36:14,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:36:14,195 INFO L82 PathProgramCache]: Analyzing trace with hash 2067307490, now seen corresponding path program 1 times [2019-10-02 23:36:14,195 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:36:14,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:36:14,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:36:14,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:36:14,203 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:36:14,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:36:14,312 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 23:36:14,312 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:36:14,312 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-02 23:36:14,313 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:36:14,313 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-02 23:36:14,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-02 23:36:14,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-02 23:36:14,314 INFO L87 Difference]: Start difference. First operand 190 states and 224 transitions. Second operand 7 states. [2019-10-02 23:36:14,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:36:14,348 INFO L93 Difference]: Finished difference Result 193 states and 225 transitions. [2019-10-02 23:36:14,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-02 23:36:14,349 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2019-10-02 23:36:14,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:36:14,351 INFO L225 Difference]: With dead ends: 193 [2019-10-02 23:36:14,351 INFO L226 Difference]: Without dead ends: 193 [2019-10-02 23:36:14,352 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-02 23:36:14,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2019-10-02 23:36:14,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 190. [2019-10-02 23:36:14,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2019-10-02 23:36:14,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 222 transitions. [2019-10-02 23:36:14,366 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 222 transitions. Word has length 66 [2019-10-02 23:36:14,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:36:14,367 INFO L475 AbstractCegarLoop]: Abstraction has 190 states and 222 transitions. [2019-10-02 23:36:14,367 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-02 23:36:14,367 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 222 transitions. [2019-10-02 23:36:14,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-10-02 23:36:14,369 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:36:14,369 INFO L411 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] [2019-10-02 23:36:14,370 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:36:14,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:36:14,370 INFO L82 PathProgramCache]: Analyzing trace with hash 110369607, now seen corresponding path program 1 times [2019-10-02 23:36:14,370 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:36:14,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:36:14,375 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:36:14,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:36:14,375 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:36:14,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:36:14,592 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 23:36:14,592 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:36:14,593 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-02 23:36:14,593 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:36:14,593 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-02 23:36:14,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-02 23:36:14,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-02 23:36:14,595 INFO L87 Difference]: Start difference. First operand 190 states and 222 transitions. Second operand 5 states. [2019-10-02 23:36:14,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:36:14,682 INFO L93 Difference]: Finished difference Result 205 states and 237 transitions. [2019-10-02 23:36:14,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-02 23:36:14,683 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 81 [2019-10-02 23:36:14,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:36:14,687 INFO L225 Difference]: With dead ends: 205 [2019-10-02 23:36:14,687 INFO L226 Difference]: Without dead ends: 205 [2019-10-02 23:36:14,687 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-02 23:36:14,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2019-10-02 23:36:14,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 196. [2019-10-02 23:36:14,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2019-10-02 23:36:14,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 228 transitions. [2019-10-02 23:36:14,709 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 228 transitions. Word has length 81 [2019-10-02 23:36:14,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:36:14,710 INFO L475 AbstractCegarLoop]: Abstraction has 196 states and 228 transitions. [2019-10-02 23:36:14,710 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-02 23:36:14,710 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 228 transitions. [2019-10-02 23:36:14,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-10-02 23:36:14,715 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:36:14,715 INFO L411 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] [2019-10-02 23:36:14,715 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:36:14,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:36:14,716 INFO L82 PathProgramCache]: Analyzing trace with hash 554270281, now seen corresponding path program 1 times [2019-10-02 23:36:14,718 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:36:14,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:36:14,722 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:36:14,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:36:14,722 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:36:14,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:36:15,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 23:36:15,104 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:36:15,104 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-02 23:36:15,104 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:36:15,105 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-02 23:36:15,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-02 23:36:15,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2019-10-02 23:36:15,106 INFO L87 Difference]: Start difference. First operand 196 states and 228 transitions. Second operand 14 states. [2019-10-02 23:36:15,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:36:15,607 INFO L93 Difference]: Finished difference Result 176 states and 194 transitions. [2019-10-02 23:36:15,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-02 23:36:15,608 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 81 [2019-10-02 23:36:15,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:36:15,610 INFO L225 Difference]: With dead ends: 176 [2019-10-02 23:36:15,610 INFO L226 Difference]: Without dead ends: 168 [2019-10-02 23:36:15,611 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2019-10-02 23:36:15,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2019-10-02 23:36:15,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 148. [2019-10-02 23:36:15,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-10-02 23:36:15,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 166 transitions. [2019-10-02 23:36:15,625 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 166 transitions. Word has length 81 [2019-10-02 23:36:15,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:36:15,626 INFO L475 AbstractCegarLoop]: Abstraction has 148 states and 166 transitions. [2019-10-02 23:36:15,626 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-02 23:36:15,626 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 166 transitions. [2019-10-02 23:36:15,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-10-02 23:36:15,629 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:36:15,629 INFO L411 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] [2019-10-02 23:36:15,629 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:36:15,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:36:15,630 INFO L82 PathProgramCache]: Analyzing trace with hash -128539967, now seen corresponding path program 1 times [2019-10-02 23:36:15,630 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:36:15,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:36:15,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:36:15,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:36:15,634 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:36:15,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:36:15,853 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-02 23:36:15,854 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:36:15,854 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-02 23:36:15,854 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:36:15,854 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-02 23:36:15,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-02 23:36:15,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2019-10-02 23:36:15,855 INFO L87 Difference]: Start difference. First operand 148 states and 166 transitions. Second operand 9 states. [2019-10-02 23:36:16,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:36:16,069 INFO L93 Difference]: Finished difference Result 147 states and 164 transitions. [2019-10-02 23:36:16,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-02 23:36:16,070 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2019-10-02 23:36:16,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:36:16,074 INFO L225 Difference]: With dead ends: 147 [2019-10-02 23:36:16,074 INFO L226 Difference]: Without dead ends: 138 [2019-10-02 23:36:16,075 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2019-10-02 23:36:16,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2019-10-02 23:36:16,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2019-10-02 23:36:16,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-10-02 23:36:16,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 155 transitions. [2019-10-02 23:36:16,082 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 155 transitions. Word has length 83 [2019-10-02 23:36:16,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:36:16,083 INFO L475 AbstractCegarLoop]: Abstraction has 138 states and 155 transitions. [2019-10-02 23:36:16,083 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-02 23:36:16,083 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 155 transitions. [2019-10-02 23:36:16,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-02 23:36:16,090 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:36:16,090 INFO L411 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] [2019-10-02 23:36:16,091 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:36:16,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:36:16,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1482509601, now seen corresponding path program 1 times [2019-10-02 23:36:16,092 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:36:16,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:36:16,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:36:16,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:36:16,098 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:36:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:36:16,237 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-02 23:36:16,238 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:36:16,238 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-02 23:36:16,238 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:36:16,239 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-02 23:36:16,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-02 23:36:16,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-02 23:36:16,240 INFO L87 Difference]: Start difference. First operand 138 states and 155 transitions. Second operand 6 states. [2019-10-02 23:36:16,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:36:16,415 INFO L93 Difference]: Finished difference Result 135 states and 152 transitions. [2019-10-02 23:36:16,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-02 23:36:16,417 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 112 [2019-10-02 23:36:16,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:36:16,418 INFO L225 Difference]: With dead ends: 135 [2019-10-02 23:36:16,418 INFO L226 Difference]: Without dead ends: 0 [2019-10-02 23:36:16,419 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-10-02 23:36:16,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-02 23:36:16,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-02 23:36:16,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-02 23:36:16,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-02 23:36:16,422 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 112 [2019-10-02 23:36:16,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:36:16,422 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-02 23:36:16,422 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-02 23:36:16,422 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-02 23:36:16,423 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-02 23:36:16,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 11:36:16 BoogieIcfgContainer [2019-10-02 23:36:16,429 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 23:36:16,433 INFO L168 Benchmark]: Toolchain (without parser) took 6398.60 ms. Allocated memory was 133.2 MB in the beginning and 361.8 MB in the end (delta: 228.6 MB). Free memory was 82.7 MB in the beginning and 239.5 MB in the end (delta: -156.8 MB). Peak memory consumption was 71.8 MB. Max. memory is 7.1 GB. [2019-10-02 23:36:16,434 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 133.2 MB. Free memory was 107.4 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-02 23:36:16,437 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1395.18 ms. Allocated memory was 133.2 MB in the beginning and 216.5 MB in the end (delta: 83.4 MB). Free memory was 82.5 MB in the beginning and 137.7 MB in the end (delta: -55.3 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. [2019-10-02 23:36:16,438 INFO L168 Benchmark]: Boogie Preprocessor took 131.80 ms. Allocated memory is still 216.5 MB. Free memory was 137.7 MB in the beginning and 134.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2019-10-02 23:36:16,439 INFO L168 Benchmark]: RCFGBuilder took 831.61 ms. Allocated memory is still 216.5 MB. Free memory was 134.3 MB in the beginning and 79.1 MB in the end (delta: 55.2 MB). Peak memory consumption was 55.2 MB. Max. memory is 7.1 GB. [2019-10-02 23:36:16,441 INFO L168 Benchmark]: TraceAbstraction took 4034.73 ms. Allocated memory was 216.5 MB in the beginning and 361.8 MB in the end (delta: 145.2 MB). Free memory was 79.1 MB in the beginning and 239.5 MB in the end (delta: -160.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-02 23:36:16,449 INFO L335 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 133.2 MB. Free memory was 107.4 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1395.18 ms. Allocated memory was 133.2 MB in the beginning and 216.5 MB in the end (delta: 83.4 MB). Free memory was 82.5 MB in the beginning and 137.7 MB in the end (delta: -55.3 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 131.80 ms. Allocated memory is still 216.5 MB. Free memory was 137.7 MB in the beginning and 134.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 831.61 ms. Allocated memory is still 216.5 MB. Free memory was 134.3 MB in the beginning and 79.1 MB in the end (delta: 55.2 MB). Peak memory consumption was 55.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4034.73 ms. Allocated memory was 216.5 MB in the beginning and 361.8 MB in the end (delta: 145.2 MB). Free memory was 79.1 MB in the beginning and 239.5 MB in the end (delta: -160.4 MB). There was no memory consumed. 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 175 locations, 1 error locations. SAFE Result, 3.9s OverallTime, 8 OverallIterations, 2 TraceHistogramMax, 1.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 750 SDtfs, 602 SDslu, 2545 SDs, 0 SdLazy, 667 SolverSat, 223 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.7s 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 AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 58 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 565 NumberOfCodeBlocks, 565 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 557 ConstructedInterpolants, 0 QuantifiedInterpolants, 145000 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 48/48 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...