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-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 09:10:08,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 09:10:08,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 09:10:08,511 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 09:10:08,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 09:10:08,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 09:10:08,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 09:10:08,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 09:10:08,518 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 09:10:08,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 09:10:08,521 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 09:10:08,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 09:10:08,523 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 09:10:08,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 09:10:08,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 09:10:08,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 09:10:08,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 09:10:08,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 09:10:08,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 09:10:08,537 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 09:10:08,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 09:10:08,543 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 09:10:08,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 09:10:08,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 09:10:08,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 09:10:08,550 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 09:10:08,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 09:10:08,552 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 09:10:08,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 09:10:08,555 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 09:10:08,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 09:10:08,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 09:10:08,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 09:10:08,558 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 09:10:08,561 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 09:10:08,562 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 09:10:08,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 09:10:08,563 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 09:10:08,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 09:10:08,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 09:10:08,566 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 09:10:08,567 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 09:10:08,586 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 09:10:08,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 09:10:08,589 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 09:10:08,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 09:10:08,589 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 09:10:08,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 09:10:08,590 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 09:10:08,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 09:10:08,590 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 09:10:08,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 09:10:08,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 09:10:08,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 09:10:08,592 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 09:10:08,592 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 09:10:08,592 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 09:10:08,593 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 09:10:08,593 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 09:10:08,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 09:10:08,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 09:10:08,593 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 09:10:08,593 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 09:10:08,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 09:10:08,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 09:10:08,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 09:10:08,594 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 09:10:08,594 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 09:10:08,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 09:10:08,595 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 09:10:08,595 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 09:10:08,867 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 09:10:08,882 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 09:10:08,887 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 09:10:08,888 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 09:10:08,889 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 09:10:08,890 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i [2019-10-07 09:10:08,962 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6787fdae/75a66864c6534c5696b631117a46f77e/FLAGc15fffc30 [2019-10-07 09:10:09,706 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 09:10:09,706 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i [2019-10-07 09:10:09,745 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6787fdae/75a66864c6534c5696b631117a46f77e/FLAGc15fffc30 [2019-10-07 09:10:09,800 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6787fdae/75a66864c6534c5696b631117a46f77e [2019-10-07 09:10:09,811 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 09:10:09,812 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 09:10:09,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 09:10:09,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 09:10:09,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 09:10:09,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 09:10:09" (1/1) ... [2019-10-07 09:10:09,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76bd308c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:10:09, skipping insertion in model container [2019-10-07 09:10:09,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 09:10:09" (1/1) ... [2019-10-07 09:10:09,833 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 09:10:09,952 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 09:10:11,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 09:10:11,324 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 09:10:11,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 09:10:11,627 INFO L192 MainTranslator]: Completed translation [2019-10-07 09:10:11,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:10:11 WrapperNode [2019-10-07 09:10:11,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 09:10:11,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 09:10:11,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 09:10:11,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 09:10:11,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:10:11" (1/1) ... [2019-10-07 09:10:11,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:10:11" (1/1) ... [2019-10-07 09:10:11,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:10:11" (1/1) ... [2019-10-07 09:10:11,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:10:11" (1/1) ... [2019-10-07 09:10:11,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:10:11" (1/1) ... [2019-10-07 09:10:11,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:10:11" (1/1) ... [2019-10-07 09:10:11,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:10:11" (1/1) ... [2019-10-07 09:10:11,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 09:10:11,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 09:10:11,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 09:10:11,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 09:10:11,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:10:11" (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 [2019-10-07 09:10:12,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 09:10:12,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 09:10:12,068 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-10-07 09:10:12,069 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2019-10-07 09:10:12,069 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2019-10-07 09:10:12,070 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2019-10-07 09:10:12,071 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2019-10-07 09:10:12,071 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2019-10-07 09:10:12,072 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2019-10-07 09:10:12,072 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2019-10-07 09:10:12,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-07 09:10:12,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-07 09:10:12,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-07 09:10:12,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-07 09:10:12,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-07 09:10:12,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-07 09:10:12,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-07 09:10:12,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-07 09:10:12,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-07 09:10:12,079 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2019-10-07 09:10:12,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-07 09:10:12,080 INFO L138 BoogieDeclarations]: Found implementation of procedure genelink_rx_fixup [2019-10-07 09:10:12,080 INFO L138 BoogieDeclarations]: Found implementation of procedure genelink_tx_fixup [2019-10-07 09:10:12,080 INFO L138 BoogieDeclarations]: Found implementation of procedure genelink_bind [2019-10-07 09:10:12,080 INFO L138 BoogieDeclarations]: Found implementation of procedure gl620a_driver_init [2019-10-07 09:10:12,081 INFO L138 BoogieDeclarations]: Found implementation of procedure gl620a_driver_exit [2019-10-07 09:10:12,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_2 [2019-10-07 09:10:12,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2019-10-07 09:10:12,082 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 09:10:12,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2019-10-07 09:10:12,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2019-10-07 09:10:12,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2019-10-07 09:10:12,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2019-10-07 09:10:12,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2019-10-07 09:10:12,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_12 [2019-10-07 09:10:12,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_13 [2019-10-07 09:10:12,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_14 [2019-10-07 09:10:12,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2019-10-07 09:10:12,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-10-07 09:10:12,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2019-10-07 09:10:12,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2019-10-07 09:10:12,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2019-10-07 09:10:12,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-07 09:10:12,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-07 09:10:12,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-07 09:10:12,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-07 09:10:12,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2019-10-07 09:10:12,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-07 09:10:12,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2019-10-07 09:10:12,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2019-10-07 09:10:12,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2019-10-07 09:10:12,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2019-10-07 09:10:12,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2019-10-07 09:10:12,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-07 09:10:12,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2019-10-07 09:10:12,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2019-10-07 09:10:12,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2019-10-07 09:10:12,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1 [2019-10-07 09:10:12,091 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_expand [2019-10-07 09:10:12,091 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2019-10-07 09:10:12,092 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2019-10-07 09:10:12,092 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-07 09:10:12,092 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-07 09:10:12,093 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-07 09:10:12,093 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2019-10-07 09:10:12,093 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2019-10-07 09:10:12,093 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2019-10-07 09:10:12,093 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2019-10-07 09:10:12,094 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2019-10-07 09:10:12,094 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-07 09:10:12,094 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-07 09:10:12,095 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-07 09:10:12,095 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-07 09:10:12,096 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-07 09:10:12,096 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2019-10-07 09:10:12,097 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 09:10:12,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-07 09:10:12,098 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2019-10-07 09:10:12,098 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-07 09:10:12,098 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2019-10-07 09:10:12,099 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-10-07 09:10:12,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 09:10:12,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2019-10-07 09:10:12,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2019-10-07 09:10:12,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2019-10-07 09:10:12,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2019-10-07 09:10:12,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2019-10-07 09:10:12,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_12 [2019-10-07 09:10:12,101 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_expand [2019-10-07 09:10:12,101 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2019-10-07 09:10:12,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 09:10:12,101 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2019-10-07 09:10:12,101 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2019-10-07 09:10:12,102 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2019-10-07 09:10:12,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 09:10:12,102 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2019-10-07 09:10:12,102 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-07 09:10:12,102 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2019-10-07 09:10:12,102 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2019-10-07 09:10:12,102 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2019-10-07 09:10:12,103 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2019-10-07 09:10:12,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2019-10-07 09:10:12,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2019-10-07 09:10:12,103 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 09:10:12,103 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-07 09:10:12,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 09:10:12,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-07 09:10:12,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-07 09:10:12,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 09:10:12,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-07 09:10:12,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 09:10:12,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-07 09:10:12,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-07 09:10:12,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-07 09:10:12,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-07 09:10:12,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-07 09:10:12,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-07 09:10:12,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-07 09:10:12,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-07 09:10:12,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_2 [2019-10-07 09:10:12,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2019-10-07 09:10:12,107 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2019-10-07 09:10:12,107 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2019-10-07 09:10:12,107 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-07 09:10:12,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_13 [2019-10-07 09:10:12,108 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-07 09:10:12,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_14 [2019-10-07 09:10:12,109 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-07 09:10:12,109 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-07 09:10:12,109 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2019-10-07 09:10:12,109 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2019-10-07 09:10:12,110 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2019-10-07 09:10:12,110 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2019-10-07 09:10:12,111 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2019-10-07 09:10:12,115 INFO L130 BoogieDeclarations]: Found specification of procedure genelink_rx_fixup [2019-10-07 09:10:12,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 09:10:12,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-07 09:10:12,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 09:10:12,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 09:10:12,117 INFO L130 BoogieDeclarations]: Found specification of procedure genelink_tx_fixup [2019-10-07 09:10:12,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2019-10-07 09:10:12,118 INFO L130 BoogieDeclarations]: Found specification of procedure genelink_bind [2019-10-07 09:10:12,118 INFO L130 BoogieDeclarations]: Found specification of procedure gl620a_driver_init [2019-10-07 09:10:12,119 INFO L130 BoogieDeclarations]: Found specification of procedure gl620a_driver_exit [2019-10-07 09:10:12,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1 [2019-10-07 09:10:12,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2019-10-07 09:10:12,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-07 09:10:12,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-07 09:10:12,129 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 09:10:12,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-07 09:10:12,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2019-10-07 09:10:12,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-10-07 09:10:12,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2019-10-07 09:10:12,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2019-10-07 09:10:12,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2019-10-07 09:10:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-07 09:10:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-07 09:10:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-07 09:10:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-07 09:10:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2019-10-07 09:10:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2019-10-07 09:10:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2019-10-07 09:10:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2019-10-07 09:10:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-07 09:10:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 09:10:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-07 09:10:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 09:10:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 09:10:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-07 09:10:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-07 09:10:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 09:10:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-07 09:10:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-07 09:10:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-07 09:10:12,824 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-07 09:10:17,911 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 09:10:17,911 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 09:10:17,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 09:10:17 BoogieIcfgContainer [2019-10-07 09:10:17,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 09:10:17,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 09:10:17,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 09:10:17,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 09:10:17,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 09:10:09" (1/3) ... [2019-10-07 09:10:17,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ea59f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 09:10:17, skipping insertion in model container [2019-10-07 09:10:17,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:10:11" (2/3) ... [2019-10-07 09:10:17,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ea59f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 09:10:17, skipping insertion in model container [2019-10-07 09:10:17,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 09:10:17" (3/3) ... [2019-10-07 09:10:17,927 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i [2019-10-07 09:10:17,938 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 09:10:17,952 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 09:10:17,965 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 09:10:18,013 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 09:10:18,013 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 09:10:18,013 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 09:10:18,013 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 09:10:18,014 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 09:10:18,014 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 09:10:18,014 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 09:10:18,014 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 09:10:18,053 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states. [2019-10-07 09:10:18,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-07 09:10:18,075 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:10:18,076 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 09:10:18,079 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:10:18,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:10:18,085 INFO L82 PathProgramCache]: Analyzing trace with hash -76993048, now seen corresponding path program 1 times [2019-10-07 09:10:18,095 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:10:18,095 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:10:18,095 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:10:18,096 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:10:18,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:10:18,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:10:18,797 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-07 09:10:18,798 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:10:18,799 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 09:10:18,799 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 09:10:18,806 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 09:10:18,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 09:10:18,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 09:10:18,824 INFO L87 Difference]: Start difference. First operand 316 states. Second operand 3 states. [2019-10-07 09:10:20,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:10:20,628 INFO L93 Difference]: Finished difference Result 831 states and 1059 transitions. [2019-10-07 09:10:20,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 09:10:20,635 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2019-10-07 09:10:20,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:10:20,669 INFO L225 Difference]: With dead ends: 831 [2019-10-07 09:10:20,669 INFO L226 Difference]: Without dead ends: 527 [2019-10-07 09:10:20,684 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 09:10:20,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2019-10-07 09:10:20,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2019-10-07 09:10:20,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2019-10-07 09:10:20,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 657 transitions. [2019-10-07 09:10:20,809 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 657 transitions. Word has length 59 [2019-10-07 09:10:20,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:10:20,810 INFO L462 AbstractCegarLoop]: Abstraction has 527 states and 657 transitions. [2019-10-07 09:10:20,810 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 09:10:20,810 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 657 transitions. [2019-10-07 09:10:20,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-10-07 09:10:20,817 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:10:20,817 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 09:10:20,817 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:10:20,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:10:20,818 INFO L82 PathProgramCache]: Analyzing trace with hash -912083698, now seen corresponding path program 1 times [2019-10-07 09:10:20,818 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:10:20,818 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:10:20,818 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:10:20,819 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:10:20,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:10:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:10:21,067 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-07 09:10:21,067 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:10:21,068 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 09:10:21,068 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 09:10:21,071 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 09:10:21,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 09:10:21,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-07 09:10:21,072 INFO L87 Difference]: Start difference. First operand 527 states and 657 transitions. Second operand 6 states. [2019-10-07 09:10:22,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:10:22,012 INFO L93 Difference]: Finished difference Result 1036 states and 1300 transitions. [2019-10-07 09:10:22,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 09:10:22,013 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 73 [2019-10-07 09:10:22,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:10:22,024 INFO L225 Difference]: With dead ends: 1036 [2019-10-07 09:10:22,024 INFO L226 Difference]: Without dead ends: 1015 [2019-10-07 09:10:22,026 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-07 09:10:22,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2019-10-07 09:10:22,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 1015. [2019-10-07 09:10:22,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2019-10-07 09:10:22,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1277 transitions. [2019-10-07 09:10:22,094 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1277 transitions. Word has length 73 [2019-10-07 09:10:22,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:10:22,095 INFO L462 AbstractCegarLoop]: Abstraction has 1015 states and 1277 transitions. [2019-10-07 09:10:22,095 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 09:10:22,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1277 transitions. [2019-10-07 09:10:22,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-07 09:10:22,113 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:10:22,113 INFO L385 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 09:10:22,114 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:10:22,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:10:22,115 INFO L82 PathProgramCache]: Analyzing trace with hash -989621794, now seen corresponding path program 1 times [2019-10-07 09:10:22,115 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:10:22,115 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:10:22,116 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:10:22,116 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:10:22,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:10:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:10:22,371 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-07 09:10:22,371 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:10:22,371 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 09:10:22,372 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 09:10:22,373 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 09:10:22,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 09:10:22,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 09:10:22,374 INFO L87 Difference]: Start difference. First operand 1015 states and 1277 transitions. Second operand 3 states. [2019-10-07 09:10:22,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:10:22,490 INFO L93 Difference]: Finished difference Result 2293 states and 2898 transitions. [2019-10-07 09:10:22,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 09:10:22,491 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2019-10-07 09:10:22,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:10:22,499 INFO L225 Difference]: With dead ends: 2293 [2019-10-07 09:10:22,500 INFO L226 Difference]: Without dead ends: 1300 [2019-10-07 09:10:22,503 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 09:10:22,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1300 states. [2019-10-07 09:10:22,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1300 to 1279. [2019-10-07 09:10:22,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1279 states. [2019-10-07 09:10:22,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 1623 transitions. [2019-10-07 09:10:22,577 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 1623 transitions. Word has length 138 [2019-10-07 09:10:22,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:10:22,577 INFO L462 AbstractCegarLoop]: Abstraction has 1279 states and 1623 transitions. [2019-10-07 09:10:22,577 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 09:10:22,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 1623 transitions. [2019-10-07 09:10:22,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-10-07 09:10:22,584 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:10:22,584 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 09:10:22,584 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:10:22,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:10:22,585 INFO L82 PathProgramCache]: Analyzing trace with hash 892569057, now seen corresponding path program 1 times [2019-10-07 09:10:22,585 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:10:22,585 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:10:22,585 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:10:22,585 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:10:22,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:10:22,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:10:22,757 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2019-10-07 09:10:22,757 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:10:22,758 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 09:10:22,758 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 09:10:22,758 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 09:10:22,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 09:10:22,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 09:10:22,759 INFO L87 Difference]: Start difference. First operand 1279 states and 1623 transitions. Second operand 3 states. [2019-10-07 09:10:23,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:10:23,309 INFO L93 Difference]: Finished difference Result 3417 states and 4330 transitions. [2019-10-07 09:10:23,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 09:10:23,309 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2019-10-07 09:10:23,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:10:23,327 INFO L225 Difference]: With dead ends: 3417 [2019-10-07 09:10:23,327 INFO L226 Difference]: Without dead ends: 2168 [2019-10-07 09:10:23,333 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 09:10:23,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2168 states. [2019-10-07 09:10:23,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2168 to 2147. [2019-10-07 09:10:23,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2147 states. [2019-10-07 09:10:23,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2147 states to 2147 states and 2693 transitions. [2019-10-07 09:10:23,477 INFO L78 Accepts]: Start accepts. Automaton has 2147 states and 2693 transitions. Word has length 170 [2019-10-07 09:10:23,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:10:23,479 INFO L462 AbstractCegarLoop]: Abstraction has 2147 states and 2693 transitions. [2019-10-07 09:10:23,479 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 09:10:23,479 INFO L276 IsEmpty]: Start isEmpty. Operand 2147 states and 2693 transitions. [2019-10-07 09:10:23,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-10-07 09:10:23,525 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:10:23,525 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 09:10:23,527 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:10:23,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:10:23,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1140267243, now seen corresponding path program 1 times [2019-10-07 09:10:23,528 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:10:23,528 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:10:23,528 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:10:23,528 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:10:23,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:10:23,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:10:23,727 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2019-10-07 09:10:23,727 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:10:23,728 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 09:10:23,728 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 09:10:23,730 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 09:10:23,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 09:10:23,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 09:10:23,731 INFO L87 Difference]: Start difference. First operand 2147 states and 2693 transitions. Second operand 5 states. [2019-10-07 09:10:23,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:10:23,830 INFO L93 Difference]: Finished difference Result 4318 states and 5459 transitions. [2019-10-07 09:10:23,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 09:10:23,830 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2019-10-07 09:10:23,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:10:23,845 INFO L225 Difference]: With dead ends: 4318 [2019-10-07 09:10:23,845 INFO L226 Difference]: Without dead ends: 2201 [2019-10-07 09:10:23,852 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 09:10:23,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2201 states. [2019-10-07 09:10:23,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2201 to 2187. [2019-10-07 09:10:23,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2187 states. [2019-10-07 09:10:23,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2187 states to 2187 states and 2741 transitions. [2019-10-07 09:10:23,970 INFO L78 Accepts]: Start accepts. Automaton has 2187 states and 2741 transitions. Word has length 170 [2019-10-07 09:10:23,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:10:23,973 INFO L462 AbstractCegarLoop]: Abstraction has 2187 states and 2741 transitions. [2019-10-07 09:10:23,973 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 09:10:23,974 INFO L276 IsEmpty]: Start isEmpty. Operand 2187 states and 2741 transitions. [2019-10-07 09:10:23,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-07 09:10:23,984 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:10:23,984 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 09:10:23,985 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:10:23,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:10:23,986 INFO L82 PathProgramCache]: Analyzing trace with hash -43516539, now seen corresponding path program 1 times [2019-10-07 09:10:23,986 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:10:23,986 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:10:23,986 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:10:23,987 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:10:23,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:10:24,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:10:24,352 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2019-10-07 09:10:24,352 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:10:24,352 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 09:10:24,355 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 09:10:24,355 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 09:10:24,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 09:10:24,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 09:10:24,356 INFO L87 Difference]: Start difference. First operand 2187 states and 2741 transitions. Second operand 4 states. [2019-10-07 09:10:24,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:10:24,473 INFO L93 Difference]: Finished difference Result 4352 states and 5459 transitions. [2019-10-07 09:10:24,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 09:10:24,473 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 174 [2019-10-07 09:10:24,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:10:24,493 INFO L225 Difference]: With dead ends: 4352 [2019-10-07 09:10:24,493 INFO L226 Difference]: Without dead ends: 2188 [2019-10-07 09:10:24,499 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 09:10:24,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2188 states. [2019-10-07 09:10:24,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2188 to 2188. [2019-10-07 09:10:24,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2188 states. [2019-10-07 09:10:24,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2188 states to 2188 states and 2742 transitions. [2019-10-07 09:10:24,586 INFO L78 Accepts]: Start accepts. Automaton has 2188 states and 2742 transitions. Word has length 174 [2019-10-07 09:10:24,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:10:24,586 INFO L462 AbstractCegarLoop]: Abstraction has 2188 states and 2742 transitions. [2019-10-07 09:10:24,587 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 09:10:24,587 INFO L276 IsEmpty]: Start isEmpty. Operand 2188 states and 2742 transitions. [2019-10-07 09:10:24,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-07 09:10:24,593 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:10:24,593 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 09:10:24,594 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:10:24,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:10:24,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1783710495, now seen corresponding path program 1 times [2019-10-07 09:10:24,594 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:10:24,594 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:10:24,595 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:10:24,595 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:10:24,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:10:24,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:10:24,935 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2019-10-07 09:10:24,935 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:10:24,936 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 09:10:24,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2019-10-07 09:10:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:10:25,658 INFO L256 TraceCheckSpWp]: Trace formula consists of 1847 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 09:10:25,674 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 09:10:25,771 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 38 proven. 1 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-07 09:10:25,772 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 09:10:26,177 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2019-10-07 09:10:26,178 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 09:10:26,217 INFO L162 IcfgInterpreter]: Started Sifa with 136 locations of interest [2019-10-07 09:10:26,217 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 09:10:26,225 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 09:10:26,234 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 09:10:26,235 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 09:12:33,092 WARN L191 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 963 [2019-10-07 09:16:24,330 WARN L160 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string66.base| |#t~string79.base|) [2019-10-07 09:17:58,076 WARN L191 SmtUtils]: Spent 879.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 153 [2019-10-07 09:17:58,467 WARN L191 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 986 [2019-10-07 09:17:59,458 WARN L191 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 982 [2019-10-07 09:18:00,246 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 978 [2019-10-07 09:18:00,771 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 974 [2019-10-07 09:18:01,393 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 970 [2019-10-07 09:18:01,905 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 966 [2019-10-07 09:18:02,317 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 962 [2019-10-07 09:18:02,733 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 958 [2019-10-07 09:18:03,098 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 954 [2019-10-07 09:18:03,859 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 950 [2019-10-07 09:18:04,684 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 946 [2019-10-07 09:18:05,375 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 942 [2019-10-07 09:18:06,009 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 938 [2019-10-07 09:18:06,381 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 934 [2019-10-07 09:18:07,013 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 930 [2019-10-07 09:18:07,371 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 926 [2019-10-07 09:18:07,644 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 922 [2019-10-07 09:18:07,940 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 918 [2019-10-07 09:18:08,230 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 914 [2019-10-07 09:18:08,473 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 910 [2019-10-07 09:18:08,704 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 906 [2019-10-07 09:18:08,912 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 902 [2019-10-07 09:18:09,118 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 898 [2019-10-07 09:18:09,357 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 894 [2019-10-07 09:18:09,542 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 890 [2019-10-07 09:18:09,737 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 887 [2019-10-07 09:18:09,937 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 884 [2019-10-07 09:18:10,695 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 883 [2019-10-07 09:18:25,106 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 09:18:25,108 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.UnsupportedOperationException: need numeric sort at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.UnsupportedOperationException: need numeric sort at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.numericEquality(SmtUtils.java:698) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.binaryEquality(SmtUtils.java:628) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.QuantifierUtils.applyDerOperator(QuantifierUtils.java:103) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ArrayIndexEqualityManager.constructDerRelation(ArrayIndexEqualityManager.java:297) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ArrayIndexEqualityManager.constructNestedStoreUpdateConstraintForOnePosition(ArrayIndexEqualityManager.java:415) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ArrayIndexEqualityManager.constructNestedStoreUpdateConstraint(ArrayIndexEqualityManager.java:448) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.Elim1Store.constructWriteConstraints2(Elim1Store.java:888) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:302) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:361) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.quantifier(PartialQuantifierElimination.java:146) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:275) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:263) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:237) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:216) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 09:18:25,114 INFO L168 Benchmark]: Toolchain (without parser) took 495301.70 ms. Allocated memory was 145.2 MB in the beginning and 800.6 MB in the end (delta: 655.4 MB). Free memory was 94.9 MB in the beginning and 623.9 MB in the end (delta: -528.9 MB). Peak memory consumption was 679.2 MB. Max. memory is 7.1 GB. [2019-10-07 09:18:25,115 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-07 09:18:25,116 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1815.17 ms. Allocated memory was 145.2 MB in the beginning and 208.1 MB in the end (delta: 62.9 MB). Free memory was 94.5 MB in the beginning and 98.4 MB in the end (delta: -3.8 MB). Peak memory consumption was 67.1 MB. Max. memory is 7.1 GB. [2019-10-07 09:18:25,116 INFO L168 Benchmark]: Boogie Preprocessor took 317.41 ms. Allocated memory was 208.1 MB in the beginning and 240.6 MB in the end (delta: 32.5 MB). Free memory was 98.4 MB in the beginning and 192.8 MB in the end (delta: -94.4 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. [2019-10-07 09:18:25,117 INFO L168 Benchmark]: RCFGBuilder took 5965.68 ms. Allocated memory was 240.6 MB in the beginning and 340.8 MB in the end (delta: 100.1 MB). Free memory was 192.8 MB in the beginning and 205.1 MB in the end (delta: -12.3 MB). Peak memory consumption was 211.7 MB. Max. memory is 7.1 GB. [2019-10-07 09:18:25,118 INFO L168 Benchmark]: TraceAbstraction took 487198.34 ms. Allocated memory was 340.8 MB in the beginning and 800.6 MB in the end (delta: 459.8 MB). Free memory was 205.1 MB in the beginning and 623.9 MB in the end (delta: -418.8 MB). Peak memory consumption was 593.8 MB. Max. memory is 7.1 GB. [2019-10-07 09:18:25,122 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1815.17 ms. Allocated memory was 145.2 MB in the beginning and 208.1 MB in the end (delta: 62.9 MB). Free memory was 94.5 MB in the beginning and 98.4 MB in the end (delta: -3.8 MB). Peak memory consumption was 67.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 317.41 ms. Allocated memory was 208.1 MB in the beginning and 240.6 MB in the end (delta: 32.5 MB). Free memory was 98.4 MB in the beginning and 192.8 MB in the end (delta: -94.4 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5965.68 ms. Allocated memory was 240.6 MB in the beginning and 340.8 MB in the end (delta: 100.1 MB). Free memory was 192.8 MB in the beginning and 205.1 MB in the end (delta: -12.3 MB). Peak memory consumption was 211.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 487198.34 ms. Allocated memory was 340.8 MB in the beginning and 800.6 MB in the end (delta: 459.8 MB). Free memory was 205.1 MB in the beginning and 623.9 MB in the end (delta: -418.8 MB). Peak memory consumption was 593.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.UnsupportedOperationException: need numeric sort de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.UnsupportedOperationException: need numeric sort: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...