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--ppp--ppp_async.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 09:06:53,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 09:06:53,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 09:06:53,769 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 09:06:53,770 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 09:06:53,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 09:06:53,772 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 09:06:53,774 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 09:06:53,776 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 09:06:53,776 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 09:06:53,777 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 09:06:53,779 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 09:06:53,779 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 09:06:53,780 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 09:06:53,781 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 09:06:53,782 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 09:06:53,783 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 09:06:53,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 09:06:53,785 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 09:06:53,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 09:06:53,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 09:06:53,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 09:06:53,791 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 09:06:53,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 09:06:53,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 09:06:53,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 09:06:53,794 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 09:06:53,795 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 09:06:53,796 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 09:06:53,797 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 09:06:53,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 09:06:53,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 09:06:53,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 09:06:53,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 09:06:53,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 09:06:53,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 09:06:53,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 09:06:53,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 09:06:53,802 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 09:06:53,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 09:06:53,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 09:06:53,804 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 09:06:53,830 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 09:06:53,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 09:06:53,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 09:06:53,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 09:06:53,832 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 09:06:53,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 09:06:53,833 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 09:06:53,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 09:06:53,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 09:06:53,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 09:06:53,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 09:06:53,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 09:06:53,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 09:06:53,835 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 09:06:53,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 09:06:53,836 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 09:06:53,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 09:06:53,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 09:06:53,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 09:06:53,836 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 09:06:53,837 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 09:06:53,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 09:06:53,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 09:06:53,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 09:06:53,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 09:06:53,838 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 09:06:53,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 09:06:53,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 09:06:53,838 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 09:06:54,122 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 09:06:54,142 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 09:06:54,145 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 09:06:54,146 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 09:06:54,147 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 09:06:54,148 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_async.ko-entry_point.cil.out.i [2019-10-07 09:06:54,218 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d9d1ce89/14f2328947604c7f841f52ef95c699f5/FLAG2c0d0c430 [2019-10-07 09:06:54,976 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 09:06:54,977 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_async.ko-entry_point.cil.out.i [2019-10-07 09:06:55,029 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d9d1ce89/14f2328947604c7f841f52ef95c699f5/FLAG2c0d0c430 [2019-10-07 09:06:55,045 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d9d1ce89/14f2328947604c7f841f52ef95c699f5 [2019-10-07 09:06:55,055 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 09:06:55,056 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 09:06:55,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 09:06:55,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 09:06:55,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 09:06:55,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 09:06:55" (1/1) ... [2019-10-07 09:06:55,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@532ad4f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:06:55, skipping insertion in model container [2019-10-07 09:06:55,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 09:06:55" (1/1) ... [2019-10-07 09:06:55,072 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 09:06:55,185 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 09:06:57,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 09:06:57,030 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 09:06:57,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 09:06:57,666 INFO L192 MainTranslator]: Completed translation [2019-10-07 09:06:57,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:06:57 WrapperNode [2019-10-07 09:06:57,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 09:06:57,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 09:06:57,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 09:06:57,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 09:06:57,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:06:57" (1/1) ... [2019-10-07 09:06:57,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:06:57" (1/1) ... [2019-10-07 09:06:57,784 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:06:57" (1/1) ... [2019-10-07 09:06:57,785 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:06:57" (1/1) ... [2019-10-07 09:06:57,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:06:57" (1/1) ... [2019-10-07 09:06:57,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:06:57" (1/1) ... [2019-10-07 09:06:57,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:06:57" (1/1) ... [2019-10-07 09:06:57,960 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 09:06:57,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 09:06:57,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 09:06:57,961 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 09:06:57,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:06:57" (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 09:06:58,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 09:06:58,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 09:06:58,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-07 09:06:58,032 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-07 09:06:58,032 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-10-07 09:06:58,032 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-10-07 09:06:58,032 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-10-07 09:06:58,033 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-10-07 09:06:58,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2019-10-07 09:06:58,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2019-10-07 09:06:58,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2019-10-07 09:06:58,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab16p [2019-10-07 09:06:58,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32p [2019-10-07 09:06:58,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2019-10-07 09:06:58,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __be16_to_cpup [2019-10-07 09:06:58,034 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-10-07 09:06:58,034 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-10-07 09:06:58,034 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2019-10-07 09:06:58,035 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-07 09:06:58,036 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2019-10-07 09:06:58,036 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2019-10-07 09:06:58,036 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2019-10-07 09:06:58,036 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2019-10-07 09:06:58,036 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-07 09:06:58,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-07 09:06:58,037 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-07 09:06:58,037 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-07 09:06:58,037 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-07 09:06:58,037 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-07 09:06:58,037 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2019-10-07 09:06:58,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_head_init [2019-10-07 09:06:58,038 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2019-10-07 09:06:58,038 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2019-10-07 09:06:58,038 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2019-10-07 09:06:58,038 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2019-10-07 09:06:58,038 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2019-10-07 09:06:58,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-07 09:06:58,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-07 09:06:58,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-07 09:06:58,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-07 09:06:58,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-07 09:06:58,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-07 09:06:58,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-07 09:06:58,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-07 09:06:58,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-07 09:06:58,040 INFO L138 BoogieDeclarations]: Found implementation of procedure sema_init [2019-10-07 09:06:58,040 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_get_baud_rate [2019-10-07 09:06:58,040 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2019-10-07 09:06:58,040 INFO L138 BoogieDeclarations]: Found implementation of procedure crc_ccitt_byte [2019-10-07 09:06:58,041 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2019-10-07 09:06:58,041 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be32 [2019-10-07 09:06:58,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_get [2019-10-07 09:06:58,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_put [2019-10-07 09:06:58,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_asynctty_open [2019-10-07 09:06:58,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_asynctty_close [2019-10-07 09:06:58,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_asynctty_hangup [2019-10-07 09:06:58,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_asynctty_read [2019-10-07 09:06:58,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_asynctty_write [2019-10-07 09:06:58,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_asynctty_ioctl [2019-10-07 09:06:58,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_asynctty_poll [2019-10-07 09:06:58,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_asynctty_receive [2019-10-07 09:06:58,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_asynctty_wakeup [2019-10-07 09:06:58,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_async_init [2019-10-07 09:06:58,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_async_ioctl [2019-10-07 09:06:58,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_async_process [2019-10-07 09:06:58,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_async_encode [2019-10-07 09:06:58,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_async_send [2019-10-07 09:06:58,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_async_push [2019-10-07 09:06:58,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_async_flush_output [2019-10-07 09:06:58,043 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_ordinary [2019-10-07 09:06:58,043 INFO L138 BoogieDeclarations]: Found implementation of procedure process_input_packet [2019-10-07 09:06:58,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_async_input [2019-10-07 09:06:58,043 INFO L138 BoogieDeclarations]: Found implementation of procedure async_lcp_peek [2019-10-07 09:06:58,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_async_cleanup [2019-10-07 09:06:58,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_ppp_channel_ops_2 [2019-10-07 09:06:58,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_target_type_1 [2019-10-07 09:06:58,044 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 09:06:58,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2019-10-07 09:06:58,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2019-10-07 09:06:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2019-10-07 09:06:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2019-10-07 09:06:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2019-10-07 09:06:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_12 [2019-10-07 09:06:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_13 [2019-10-07 09:06:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_dequeue_14 [2019-10-07 09:06:58,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_15 [2019-10-07 09:06:58,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_16 [2019-10-07 09:06:58,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_17 [2019-10-07 09:06:58,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_18 [2019-10-07 09:06:58,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2019-10-07 09:06:58,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-10-07 09:06:58,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2019-10-07 09:06:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2019-10-07 09:06:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2019-10-07 09:06:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-07 09:06:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-07 09:06:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-07 09:06:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-07 09:06:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2019-10-07 09:06:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-07 09:06:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2019-10-07 09:06:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2019-10-07 09:06:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2019-10-07 09:06:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2019-10-07 09:06:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2019-10-07 09:06:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-07 09:06:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2019-10-07 09:06:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2019-10-07 09:06:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-07 09:06:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __tasklet_schedule [2019-10-07 09:06:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-07 09:06:58,049 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-07 09:06:58,049 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock [2019-10-07 09:06:58,049 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock [2019-10-07 09:06:58,049 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_bh [2019-10-07 09:06:58,049 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2019-10-07 09:06:58,049 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-07 09:06:58,049 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_bh [2019-10-07 09:06:58,049 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2019-10-07 09:06:58,050 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-07 09:06:58,050 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_irq [2019-10-07 09:06:58,050 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_irq [2019-10-07 09:06:58,050 INFO L138 BoogieDeclarations]: Found implementation of procedure down [2019-10-07 09:06:58,050 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2019-10-07 09:06:58,050 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-07 09:06:58,051 INFO L138 BoogieDeclarations]: Found implementation of procedure n_tty_ioctl_helper [2019-10-07 09:06:58,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_index [2019-10-07 09:06:58,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_input [2019-10-07 09:06:58,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_input_error [2019-10-07 09:06:58,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2019-10-07 09:06:58,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_channel [2019-10-07 09:06:58,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unit_number [2019-10-07 09:06:58,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2019-10-07 09:06:58,052 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-07 09:06:58,052 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2019-10-07 09:06:58,052 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2019-10-07 09:06:58,052 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-07 09:06:58,052 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2019-10-07 09:06:58,052 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2019-10-07 09:06:58,053 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2019-10-07 09:06:58,053 INFO L138 BoogieDeclarations]: Found implementation of procedure start_tty [2019-10-07 09:06:58,053 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_tty [2019-10-07 09:06:58,053 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2019-10-07 09:06:58,053 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2019-10-07 09:06:58,053 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_mode_ioctl [2019-10-07 09:06:58,053 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_ldisc [2019-10-07 09:06:58,054 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_termios_baud_rate [2019-10-07 09:06:58,054 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_ldisc [2019-10-07 09:06:58,054 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unthrottle [2019-10-07 09:06:58,054 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2019-10-07 09:06:58,054 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-07 09:06:58,054 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-07 09:06:58,055 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-07 09:06:58,055 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-07 09:06:58,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 09:06:58,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-07 09:06:58,055 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-07 09:06:58,055 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-10-07 09:06:58,056 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-10-07 09:06:58,056 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-10-07 09:06:58,056 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-10-07 09:06:58,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 09:06:58,056 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2019-10-07 09:06:58,056 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2019-10-07 09:06:58,056 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2019-10-07 09:06:58,057 INFO L130 BoogieDeclarations]: Found specification of procedure __swab16p [2019-10-07 09:06:58,057 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32p [2019-10-07 09:06:58,057 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2019-10-07 09:06:58,057 INFO L130 BoogieDeclarations]: Found specification of procedure __be16_to_cpup [2019-10-07 09:06:58,057 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-07 09:06:58,057 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-07 09:06:58,057 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-07 09:06:58,058 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-10-07 09:06:58,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 09:06:58,058 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-10-07 09:06:58,058 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2019-10-07 09:06:58,058 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2019-10-07 09:06:58,058 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-07 09:06:58,058 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_bh [2019-10-07 09:06:58,058 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2019-10-07 09:06:58,059 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-07 09:06:58,059 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_bh [2019-10-07 09:06:58,059 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2019-10-07 09:06:58,059 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-07 09:06:58,059 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock [2019-10-07 09:06:58,059 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_irq [2019-10-07 09:06:58,059 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock [2019-10-07 09:06:58,060 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_irq [2019-10-07 09:06:58,060 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-07 09:06:58,060 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2019-10-07 09:06:58,060 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2019-10-07 09:06:58,060 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2019-10-07 09:06:58,060 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2019-10-07 09:06:58,060 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-07 09:06:58,061 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-07 09:06:58,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-07 09:06:58,061 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-07 09:06:58,061 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-07 09:06:58,061 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-07 09:06:58,061 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-07 09:06:58,061 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-07 09:06:58,062 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2019-10-07 09:06:58,062 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2019-10-07 09:06:58,062 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-07 09:06:58,062 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-07 09:06:58,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2019-10-07 09:06:58,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2019-10-07 09:06:58,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2019-10-07 09:06:58,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2019-10-07 09:06:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_12 [2019-10-07 09:06:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_13 [2019-10-07 09:06:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_16 [2019-10-07 09:06:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_17 [2019-10-07 09:06:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2019-10-07 09:06:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_15 [2019-10-07 09:06:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2019-10-07 09:06:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 09:06:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_head_init [2019-10-07 09:06:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 09:06:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2019-10-07 09:06:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 09:06:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 09:06:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2019-10-07 09:06:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_dequeue_14 [2019-10-07 09:06:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2019-10-07 09:06:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-07 09:06:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2019-10-07 09:06:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2019-10-07 09:06:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2019-10-07 09:06:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2019-10-07 09:06:58,066 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2019-10-07 09:06:58,066 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2019-10-07 09:06:58,066 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2019-10-07 09:06:58,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_18 [2019-10-07 09:06:58,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2019-10-07 09:06:58,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2019-10-07 09:06:58,066 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 09:06:58,067 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-07 09:06:58,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 09:06:58,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_size_t [2019-10-07 09:06:58,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-07 09:06:58,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-07 09:06:58,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-07 09:06:58,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 09:06:58,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 09:06:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-07 09:06:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-07 09:06:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-07 09:06:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-07 09:06:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-07 09:06:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-07 09:06:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-07 09:06:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-07 09:06:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_ppp_channel_ops_2 [2019-10-07 09:06:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_target_type_1 [2019-10-07 09:06:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure sema_init [2019-10-07 09:06:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure down [2019-10-07 09:06:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure up [2019-10-07 09:06:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure stop_tty [2019-10-07 09:06:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure start_tty [2019-10-07 09:06:58,070 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unthrottle [2019-10-07 09:06:58,070 INFO L130 BoogieDeclarations]: Found specification of procedure tty_termios_baud_rate [2019-10-07 09:06:58,070 INFO L130 BoogieDeclarations]: Found specification of procedure tty_get_baud_rate [2019-10-07 09:06:58,070 INFO L130 BoogieDeclarations]: Found specification of procedure tty_mode_ioctl [2019-10-07 09:06:58,070 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_ldisc [2019-10-07 09:06:58,070 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_ldisc [2019-10-07 09:06:58,071 INFO L130 BoogieDeclarations]: Found specification of procedure n_tty_ioctl_helper [2019-10-07 09:06:58,071 INFO L130 BoogieDeclarations]: Found specification of procedure __tasklet_schedule [2019-10-07 09:06:58,071 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2019-10-07 09:06:58,071 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2019-10-07 09:06:58,071 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2019-10-07 09:06:58,071 INFO L130 BoogieDeclarations]: Found specification of procedure crc_ccitt_byte [2019-10-07 09:06:58,071 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2019-10-07 09:06:58,072 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_input [2019-10-07 09:06:58,072 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_input_error [2019-10-07 09:06:58,072 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_channel [2019-10-07 09:06:58,072 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2019-10-07 09:06:58,072 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_index [2019-10-07 09:06:58,072 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unit_number [2019-10-07 09:06:58,072 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2019-10-07 09:06:58,073 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be32 [2019-10-07 09:06:58,073 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_async_encode [2019-10-07 09:06:58,073 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_async_send [2019-10-07 09:06:58,073 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_async_push [2019-10-07 09:06:58,073 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_async_flush_output [2019-10-07 09:06:58,073 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_async_input [2019-10-07 09:06:58,073 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_async_ioctl [2019-10-07 09:06:58,074 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_async_process [2019-10-07 09:06:58,074 INFO L130 BoogieDeclarations]: Found specification of procedure async_lcp_peek [2019-10-07 09:06:58,074 INFO L130 BoogieDeclarations]: Found specification of procedure ap_get [2019-10-07 09:06:58,074 INFO L130 BoogieDeclarations]: Found specification of procedure ap_put [2019-10-07 09:06:58,074 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_asynctty_open [2019-10-07 09:06:58,074 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_asynctty_close [2019-10-07 09:06:58,074 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_asynctty_hangup [2019-10-07 09:06:58,075 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_asynctty_read [2019-10-07 09:06:58,075 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_asynctty_write [2019-10-07 09:06:58,075 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_asynctty_ioctl [2019-10-07 09:06:58,075 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_asynctty_poll [2019-10-07 09:06:58,075 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_asynctty_receive [2019-10-07 09:06:58,075 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_asynctty_wakeup [2019-10-07 09:06:58,075 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_async_init [2019-10-07 09:06:58,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-07 09:06:58,076 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-07 09:06:58,076 INFO L130 BoogieDeclarations]: Found specification of procedure scan_ordinary [2019-10-07 09:06:58,076 INFO L130 BoogieDeclarations]: Found specification of procedure process_input_packet [2019-10-07 09:06:58,076 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_async_cleanup [2019-10-07 09:06:58,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-07 09:06:58,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-07 09:06:58,076 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 09:06:58,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2019-10-07 09:06:58,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-10-07 09:06:58,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2019-10-07 09:06:58,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2019-10-07 09:06:58,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2019-10-07 09:06:58,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-07 09:06:58,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-07 09:06:58,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-07 09:06:58,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-07 09:06:58,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2019-10-07 09:06:58,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2019-10-07 09:06:58,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2019-10-07 09:06:58,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2019-10-07 09:06:58,078 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-07 09:06:58,078 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 09:06:58,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 09:06:58,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-07 09:06:58,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 09:06:58,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 09:06:58,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-07 09:06:58,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-07 09:06:58,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-07 09:06:58,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-07 09:06:59,257 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-07 09:07:06,800 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 09:07:06,800 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 09:07:06,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 09:07:06 BoogieIcfgContainer [2019-10-07 09:07:06,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 09:07:06,803 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 09:07:06,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 09:07:06,806 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 09:07:06,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 09:06:55" (1/3) ... [2019-10-07 09:07:06,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e4153e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 09:07:06, skipping insertion in model container [2019-10-07 09:07:06,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:06:57" (2/3) ... [2019-10-07 09:07:06,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e4153e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 09:07:06, skipping insertion in model container [2019-10-07 09:07:06,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 09:07:06" (3/3) ... [2019-10-07 09:07:06,810 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_async.ko-entry_point.cil.out.i [2019-10-07 09:07:06,819 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 09:07:06,830 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 09:07:06,841 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 09:07:06,880 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 09:07:06,880 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 09:07:06,880 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 09:07:06,880 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 09:07:06,880 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 09:07:06,880 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 09:07:06,880 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 09:07:06,881 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 09:07:06,925 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states. [2019-10-07 09:07:06,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-10-07 09:07:06,940 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:07:06,941 INFO L385 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:07:06,943 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:07:06,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:07:06,949 INFO L82 PathProgramCache]: Analyzing trace with hash 469378667, now seen corresponding path program 1 times [2019-10-07 09:07:06,958 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:07:06,958 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:06,958 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:06,958 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:06,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:07:07,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:07:07,467 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2019-10-07 09:07:07,468 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:07,469 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 09:07:07,469 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 09:07:07,473 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 09:07:07,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 09:07:07,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 09:07:07,489 INFO L87 Difference]: Start difference. First operand 870 states. Second operand 3 states. [2019-10-07 09:07:07,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:07:07,748 INFO L93 Difference]: Finished difference Result 2377 states and 3088 transitions. [2019-10-07 09:07:07,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 09:07:07,750 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2019-10-07 09:07:07,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:07:07,795 INFO L225 Difference]: With dead ends: 2377 [2019-10-07 09:07:07,795 INFO L226 Difference]: Without dead ends: 1564 [2019-10-07 09:07:07,808 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 09:07:07,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2019-10-07 09:07:07,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 1564. [2019-10-07 09:07:07,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1564 states. [2019-10-07 09:07:07,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 1985 transitions. [2019-10-07 09:07:07,998 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 1985 transitions. Word has length 95 [2019-10-07 09:07:07,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:07:07,999 INFO L462 AbstractCegarLoop]: Abstraction has 1564 states and 1985 transitions. [2019-10-07 09:07:07,999 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 09:07:07,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 1985 transitions. [2019-10-07 09:07:08,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-07 09:07:08,006 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:07:08,006 INFO L385 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:07:08,007 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:07:08,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:07:08,007 INFO L82 PathProgramCache]: Analyzing trace with hash -827239716, now seen corresponding path program 1 times [2019-10-07 09:07:08,008 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:07:08,008 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:08,008 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:08,008 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:08,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:07:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:07:08,288 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2019-10-07 09:07:08,289 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:08,289 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 09:07:08,289 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 09:07:08,292 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 09:07:08,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 09:07:08,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-07 09:07:08,293 INFO L87 Difference]: Start difference. First operand 1564 states and 1985 transitions. Second operand 6 states. [2019-10-07 09:07:09,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:07:09,486 INFO L93 Difference]: Finished difference Result 3104 states and 3986 transitions. [2019-10-07 09:07:09,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 09:07:09,486 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 98 [2019-10-07 09:07:09,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:07:09,507 INFO L225 Difference]: With dead ends: 3104 [2019-10-07 09:07:09,507 INFO L226 Difference]: Without dead ends: 3086 [2019-10-07 09:07:09,510 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-07 09:07:09,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3086 states. [2019-10-07 09:07:09,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3086 to 3086. [2019-10-07 09:07:09,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3086 states. [2019-10-07 09:07:09,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3086 states to 3086 states and 3966 transitions. [2019-10-07 09:07:09,736 INFO L78 Accepts]: Start accepts. Automaton has 3086 states and 3966 transitions. Word has length 98 [2019-10-07 09:07:09,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:07:09,738 INFO L462 AbstractCegarLoop]: Abstraction has 3086 states and 3966 transitions. [2019-10-07 09:07:09,738 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 09:07:09,738 INFO L276 IsEmpty]: Start isEmpty. Operand 3086 states and 3966 transitions. [2019-10-07 09:07:09,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-07 09:07:09,770 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:07:09,771 INFO L385 BasicCegarLoop]: trace histogram [10, 10, 10, 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 09:07:09,771 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:07:09,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:07:09,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1976508298, now seen corresponding path program 1 times [2019-10-07 09:07:09,772 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:07:09,772 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:09,772 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:09,773 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:09,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:07:09,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:07:09,989 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2019-10-07 09:07:09,989 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:09,990 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 09:07:09,990 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 09:07:09,991 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 09:07:09,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 09:07:09,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 09:07:09,991 INFO L87 Difference]: Start difference. First operand 3086 states and 3966 transitions. Second operand 3 states. [2019-10-07 09:07:10,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:07:10,196 INFO L93 Difference]: Finished difference Result 7430 states and 9557 transitions. [2019-10-07 09:07:10,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 09:07:10,196 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2019-10-07 09:07:10,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:07:10,232 INFO L225 Difference]: With dead ends: 7430 [2019-10-07 09:07:10,232 INFO L226 Difference]: Without dead ends: 4376 [2019-10-07 09:07:10,246 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 09:07:10,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4376 states. [2019-10-07 09:07:10,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4376 to 4356. [2019-10-07 09:07:10,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4356 states. [2019-10-07 09:07:10,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4356 states to 4356 states and 5610 transitions. [2019-10-07 09:07:10,698 INFO L78 Accepts]: Start accepts. Automaton has 4356 states and 5610 transitions. Word has length 174 [2019-10-07 09:07:10,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:07:10,700 INFO L462 AbstractCegarLoop]: Abstraction has 4356 states and 5610 transitions. [2019-10-07 09:07:10,700 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 09:07:10,700 INFO L276 IsEmpty]: Start isEmpty. Operand 4356 states and 5610 transitions. [2019-10-07 09:07:10,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-07 09:07:10,714 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:07:10,714 INFO L385 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 09:07:10,715 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:07:10,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:07:10,716 INFO L82 PathProgramCache]: Analyzing trace with hash -276466131, now seen corresponding path program 1 times [2019-10-07 09:07:10,716 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:07:10,716 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:10,716 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:10,717 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:10,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:07:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:07:10,927 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2019-10-07 09:07:10,927 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:10,927 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 09:07:10,927 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 09:07:10,928 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 09:07:10,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 09:07:10,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 09:07:10,929 INFO L87 Difference]: Start difference. First operand 4356 states and 5610 transitions. Second operand 3 states. [2019-10-07 09:07:11,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:07:11,149 INFO L93 Difference]: Finished difference Result 11026 states and 14117 transitions. [2019-10-07 09:07:11,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 09:07:11,149 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2019-10-07 09:07:11,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:07:11,190 INFO L225 Difference]: With dead ends: 11026 [2019-10-07 09:07:11,190 INFO L226 Difference]: Without dead ends: 6702 [2019-10-07 09:07:11,208 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 09:07:11,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6702 states. [2019-10-07 09:07:11,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6702 to 6684. [2019-10-07 09:07:11,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6684 states. [2019-10-07 09:07:11,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6684 states to 6684 states and 8524 transitions. [2019-10-07 09:07:11,557 INFO L78 Accepts]: Start accepts. Automaton has 6684 states and 8524 transitions. Word has length 193 [2019-10-07 09:07:11,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:07:11,558 INFO L462 AbstractCegarLoop]: Abstraction has 6684 states and 8524 transitions. [2019-10-07 09:07:11,558 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 09:07:11,558 INFO L276 IsEmpty]: Start isEmpty. Operand 6684 states and 8524 transitions. [2019-10-07 09:07:11,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-07 09:07:11,711 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:07:11,712 INFO L385 BasicCegarLoop]: trace histogram [12, 12, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 09:07:11,712 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:07:11,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:07:11,712 INFO L82 PathProgramCache]: Analyzing trace with hash 783819149, now seen corresponding path program 1 times [2019-10-07 09:07:11,713 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:07:11,713 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:11,713 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:11,713 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:11,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:07:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:07:11,848 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2019-10-07 09:07:11,848 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:11,849 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 09:07:11,849 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 09:07:11,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 09:07:11,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 09:07:11,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 09:07:11,850 INFO L87 Difference]: Start difference. First operand 6684 states and 8524 transitions. Second operand 3 states. [2019-10-07 09:07:12,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:07:12,326 INFO L93 Difference]: Finished difference Result 16054 states and 20481 transitions. [2019-10-07 09:07:12,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 09:07:12,326 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 207 [2019-10-07 09:07:12,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:07:12,395 INFO L225 Difference]: With dead ends: 16054 [2019-10-07 09:07:12,395 INFO L226 Difference]: Without dead ends: 9410 [2019-10-07 09:07:12,427 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 09:07:12,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9410 states. [2019-10-07 09:07:13,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9410 to 9390. [2019-10-07 09:07:13,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9390 states. [2019-10-07 09:07:13,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9390 states to 9390 states and 11884 transitions. [2019-10-07 09:07:13,097 INFO L78 Accepts]: Start accepts. Automaton has 9390 states and 11884 transitions. Word has length 207 [2019-10-07 09:07:13,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:07:13,098 INFO L462 AbstractCegarLoop]: Abstraction has 9390 states and 11884 transitions. [2019-10-07 09:07:13,098 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 09:07:13,098 INFO L276 IsEmpty]: Start isEmpty. Operand 9390 states and 11884 transitions. [2019-10-07 09:07:13,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-10-07 09:07:13,125 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:07:13,126 INFO L385 BasicCegarLoop]: trace histogram [12, 12, 12, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:07:13,126 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:07:13,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:07:13,126 INFO L82 PathProgramCache]: Analyzing trace with hash 564113598, now seen corresponding path program 1 times [2019-10-07 09:07:13,127 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:07:13,127 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:13,127 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:13,127 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:13,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:07:13,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:07:13,342 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2019-10-07 09:07:13,342 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:13,342 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 09:07:13,343 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 09:07:13,343 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 09:07:13,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 09:07:13,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 09:07:13,344 INFO L87 Difference]: Start difference. First operand 9390 states and 11884 transitions. Second operand 3 states. [2019-10-07 09:07:13,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:07:13,668 INFO L93 Difference]: Finished difference Result 14150 states and 18122 transitions. [2019-10-07 09:07:13,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 09:07:13,669 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 226 [2019-10-07 09:07:13,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:07:13,747 INFO L225 Difference]: With dead ends: 14150 [2019-10-07 09:07:13,747 INFO L226 Difference]: Without dead ends: 9430 [2019-10-07 09:07:13,767 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 09:07:13,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9430 states. [2019-10-07 09:07:14,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9430 to 9410. [2019-10-07 09:07:14,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9410 states. [2019-10-07 09:07:14,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9410 states to 9410 states and 11904 transitions. [2019-10-07 09:07:14,285 INFO L78 Accepts]: Start accepts. Automaton has 9410 states and 11904 transitions. Word has length 226 [2019-10-07 09:07:14,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:07:14,286 INFO L462 AbstractCegarLoop]: Abstraction has 9410 states and 11904 transitions. [2019-10-07 09:07:14,286 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 09:07:14,287 INFO L276 IsEmpty]: Start isEmpty. Operand 9410 states and 11904 transitions. [2019-10-07 09:07:14,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-10-07 09:07:14,309 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:07:14,310 INFO L385 BasicCegarLoop]: trace histogram [12, 12, 12, 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, 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 09:07:14,310 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:07:14,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:07:14,311 INFO L82 PathProgramCache]: Analyzing trace with hash 386681372, now seen corresponding path program 1 times [2019-10-07 09:07:14,311 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:07:14,311 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:14,311 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:14,311 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:14,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:07:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:07:14,924 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2019-10-07 09:07:14,925 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:14,925 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 09:07:14,925 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 09:07:15,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:07:15,492 INFO L256 TraceCheckSpWp]: Trace formula consists of 1457 conjuncts, 19 conjunts are in the unsatisfiable core [2019-10-07 09:07:15,529 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 09:07:15,743 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 89 proven. 5 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2019-10-07 09:07:15,743 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 09:07:17,201 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2019-10-07 09:07:18,062 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 09:07:18,205 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 09:07:18,282 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 09:07:18,321 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 09:07:18,353 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 09:07:18,437 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 09:07:18,492 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 09:07:18,524 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 09:07:18,547 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 09:07:18,552 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 09:07:18,557 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 09:07:18,563 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 09:07:18,568 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 09:07:18,739 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2019-10-07 09:07:18,740 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 09:07:18,792 INFO L162 IcfgInterpreter]: Started Sifa with 152 locations of interest [2019-10-07 09:07:18,792 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 09:07:18,810 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 09:07:18,820 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 09:07:18,820 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 09:07:20,211 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 434 [2019-10-07 09:07:20,919 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 421 [2019-10-07 09:07:21,424 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 419 [2019-10-07 09:07:21,585 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 481 [2019-10-07 09:07:21,762 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 481 [2019-10-07 09:07:21,917 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 481 [2019-10-07 09:07:22,074 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 481 [2019-10-07 09:07:22,363 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 483 DAG size of output: 481 [2019-10-07 09:07:22,501 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 481 [2019-10-07 09:07:22,690 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 481 [2019-10-07 09:07:22,870 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 481 [2019-10-07 09:07:23,017 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 481 [2019-10-07 09:07:23,163 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 481 [2019-10-07 09:07:23,179 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 148 for LOIs [2019-10-07 09:07:23,474 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 491 [2019-10-07 09:07:23,475 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 499 for LOIs [2019-10-07 09:07:23,650 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 499 [2019-10-07 09:07:23,792 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 499 [2019-10-07 09:07:23,998 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 535 [2019-10-07 09:07:24,325 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 507 [2019-10-07 09:07:24,591 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 09:07:24,740 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 507 [2019-10-07 09:07:24,853 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 507 [2019-10-07 09:07:24,999 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 09:07:25,223 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 550 DAG size of output: 507 [2019-10-07 09:07:25,334 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 507 [2019-10-07 09:07:25,474 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 09:07:26,852 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 09:07:30,229 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 09:07:30,762 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 09:07:31,561 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 09:07:33,848 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 09:07:34,115 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 09:07:39,337 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 09:07:47,755 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 09:07:51,478 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 09:07:51,586 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 09:07:51,807 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-07 09:07:52,942 WARN L191 SmtUtils]: Spent 849.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2019-10-07 09:07:53,109 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 09:07:53,308 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 09:07:53,585 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 09:07:53,793 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 09:07:53,919 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 09:07:55,054 WARN L191 SmtUtils]: Spent 838.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2019-10-07 09:07:55,196 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 09:07:55,381 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 09:07:55,649 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 09:07:55,876 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 578 DAG size of output: 565 [2019-10-07 09:07:55,980 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-07 09:07:56,115 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 09:07:56,310 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 567 DAG size of output: 563 [2019-10-07 09:07:56,424 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-07 09:07:56,551 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 09:07:56,668 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 578 [2019-10-07 09:07:56,782 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 578 [2019-10-07 09:07:56,929 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 584 [2019-10-07 09:07:58,041 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2019-10-07 09:07:58,189 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 09:07:58,399 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 09:07:58,635 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 09:07:58,758 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 584 [2019-10-07 09:07:58,873 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 584 [2019-10-07 09:07:59,021 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 592 [2019-10-07 09:08:00,122 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2019-10-07 09:08:00,296 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 09:08:00,467 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 09:08:00,704 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 09:08:00,952 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 594 DAG size of output: 586 [2019-10-07 09:08:01,076 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 586 [2019-10-07 09:08:01,382 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 592 [2019-10-07 09:08:01,747 WARN L191 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 588 DAG size of output: 584 [2019-10-07 09:08:01,860 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 584 [2019-10-07 09:08:01,997 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 592 [2019-10-07 09:08:02,134 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 09:08:02,255 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 09:08:02,400 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 600 [2019-10-07 09:08:03,507 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2019-10-07 09:08:03,709 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 09:08:03,879 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 09:08:04,115 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 09:08:04,244 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 602 [2019-10-07 09:08:04,369 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 602 [2019-10-07 09:08:04,522 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 608 [2019-10-07 09:08:05,621 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2019-10-07 09:08:05,771 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 09:08:05,958 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 09:08:06,195 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 09:08:06,433 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 610 DAG size of output: 600 [2019-10-07 09:08:06,578 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 600 [2019-10-07 09:08:06,733 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 608 [2019-10-07 09:08:06,950 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 604 DAG size of output: 600 [2019-10-07 09:08:07,074 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 600 [2019-10-07 09:08:07,225 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 608 [2019-10-07 09:08:07,361 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 619 [2019-10-07 09:08:07,495 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 619 [2019-10-07 09:08:07,661 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 628 [2019-10-07 09:08:08,763 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2019-10-07 09:08:08,903 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 09:08:09,073 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 09:08:09,301 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 09:08:09,445 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 09:08:09,585 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 09:08:09,760 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 636 [2019-10-07 09:08:10,867 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2019-10-07 09:08:11,006 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 09:08:11,177 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 09:08:11,415 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 09:08:11,679 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 638 DAG size of output: 625 [2019-10-07 09:08:11,816 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 625 [2019-10-07 09:08:11,997 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 636 [2019-10-07 09:08:12,247 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 629 DAG size of output: 625 [2019-10-07 09:08:12,384 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 625 [2019-10-07 09:08:12,555 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 636 [2019-10-07 09:08:12,706 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 640 [2019-10-07 09:08:12,853 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 640 [2019-10-07 09:08:13,055 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 09:08:14,120 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2019-10-07 09:08:14,263 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 625 [2019-10-07 09:08:14,432 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 594 [2019-10-07 09:08:14,677 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 09:08:14,834 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 09:08:14,983 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 09:08:15,169 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 652 [2019-10-07 09:08:16,258 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2019-10-07 09:08:16,396 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 625 [2019-10-07 09:08:16,556 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 594 [2019-10-07 09:08:16,796 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 09:08:17,075 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 654 DAG size of output: 648 [2019-10-07 09:08:17,229 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 09:08:17,418 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 652 [2019-10-07 09:08:17,678 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 650 DAG size of output: 644 [2019-10-07 09:08:17,829 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 09:08:18,014 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 652 [2019-10-07 09:08:18,178 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 652 [2019-10-07 09:08:18,336 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 652 [2019-10-07 09:08:18,529 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 09:08:19,683 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2019-10-07 09:08:19,823 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 625 [2019-10-07 09:08:19,990 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 594 [2019-10-07 09:08:20,244 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 09:08:20,406 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 656 [2019-10-07 09:08:20,576 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 656 [2019-10-07 09:08:20,778 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 668 [2019-10-07 09:08:21,887 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2019-10-07 09:08:22,027 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 625 [2019-10-07 09:08:22,192 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 594 [2019-10-07 09:08:22,424 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 09:08:22,713 WARN L191 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 670 DAG size of output: 660 [2019-10-07 09:08:22,874 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 09:08:23,086 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 668 [2019-10-07 09:08:23,371 WARN L191 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 662 DAG size of output: 656 [2019-10-07 09:08:23,537 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 656 [2019-10-07 09:08:23,738 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 668 [2019-10-07 09:08:23,913 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 668 [2019-10-07 09:08:24,080 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 668 [2019-10-07 09:08:24,288 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 676 [2019-10-07 09:08:25,378 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2019-10-07 09:08:25,515 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 09:08:25,679 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 09:08:25,910 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 09:08:26,086 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 09:08:26,263 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 09:08:26,481 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 684 [2019-10-07 09:08:27,570 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2019-10-07 09:08:27,709 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 09:08:27,870 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2019-10-07 09:08:28,098 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 09:08:28,394 WARN L191 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 686 DAG size of output: 674 [2019-10-07 09:08:28,565 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 09:08:28,789 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 684 [2019-10-07 09:08:28,975 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 09:08:29,147 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 09:08:29,362 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 684 [2019-10-07 09:08:29,533 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 09:08:29,703 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 09:08:29,919 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 684 [2019-10-07 09:08:30,101 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 686 [2019-10-07 09:08:30,283 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 686 [2019-10-07 09:08:30,512 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 692 [2019-10-07 09:08:31,579 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2019-10-07 09:08:31,719 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 625 [2019-10-07 09:08:31,891 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 594 [2019-10-07 09:08:32,148 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 09:08:32,336 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 690 [2019-10-07 09:08:32,519 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 690 [2019-10-07 09:08:32,750 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 700 [2019-10-07 09:08:33,832 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2019-10-07 09:08:33,972 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 625 [2019-10-07 09:08:34,148 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 594 [2019-10-07 09:08:34,375 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 09:08:34,698 WARN L191 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 702 DAG size of output: 694 [2019-10-07 09:08:34,883 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 694 [2019-10-07 09:08:35,120 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 700 [2019-10-07 09:08:35,448 WARN L191 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 696 DAG size of output: 690 [2019-10-07 09:08:35,642 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 690 [2019-10-07 09:08:35,874 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 700 [2019-10-07 09:08:36,073 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 707 [2019-10-07 09:08:36,269 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 707 [2019-10-07 09:08:36,509 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 711 [2019-10-07 09:08:37,624 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2019-10-07 09:08:37,762 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 625 [2019-10-07 09:08:37,937 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 594 [2019-10-07 09:08:38,168 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 09:08:38,378 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 715 [2019-10-07 09:08:38,580 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 715 [2019-10-07 09:08:38,828 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 719 [2019-10-07 09:08:39,910 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2019-10-07 09:08:40,048 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 625 [2019-10-07 09:08:40,209 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 594 [2019-10-07 09:08:40,439 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 09:08:40,810 WARN L191 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 721 DAG size of output: 713 [2019-10-07 09:08:41,018 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 713 [2019-10-07 09:08:41,269 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 719 [2019-10-07 09:08:41,631 WARN L191 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 717 DAG size of output: 713 [2019-10-07 09:08:41,830 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 713 [2019-10-07 09:08:42,077 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 719 [2019-10-07 09:08:42,289 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 726 [2019-10-07 09:08:42,502 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 726 [2019-10-07 09:08:42,765 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 730 [2019-10-07 09:08:43,844 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2019-10-07 09:08:43,977 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 613 [2019-10-07 09:08:44,136 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 582 [2019-10-07 09:08:44,373 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 534 [2019-10-07 09:08:44,581 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 09:08:44,582 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε 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.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) 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 09:08:44,589 INFO L168 Benchmark]: Toolchain (without parser) took 109532.72 ms. Allocated memory was 144.7 MB in the beginning and 1.6 GB in the end (delta: 1.4 GB). Free memory was 93.3 MB in the beginning and 697.7 MB in the end (delta: -604.5 MB). Peak memory consumption was 805.9 MB. Max. memory is 7.1 GB. [2019-10-07 09:08:44,589 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 144.7 MB. Free memory is still 120.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-07 09:08:44,589 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2610.29 ms. Allocated memory was 144.7 MB in the beginning and 259.0 MB in the end (delta: 114.3 MB). Free memory was 92.8 MB in the beginning and 197.4 MB in the end (delta: -104.5 MB). Peak memory consumption was 117.0 MB. Max. memory is 7.1 GB. [2019-10-07 09:08:44,590 INFO L168 Benchmark]: Boogie Preprocessor took 292.80 ms. Allocated memory is still 259.0 MB. Free memory was 197.4 MB in the beginning and 181.9 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. [2019-10-07 09:08:44,590 INFO L168 Benchmark]: RCFGBuilder took 8841.04 ms. Allocated memory was 259.0 MB in the beginning and 385.4 MB in the end (delta: 126.4 MB). Free memory was 181.9 MB in the beginning and 303.5 MB in the end (delta: -121.6 MB). Peak memory consumption was 187.7 MB. Max. memory is 7.1 GB. [2019-10-07 09:08:44,590 INFO L168 Benchmark]: TraceAbstraction took 97784.09 ms. Allocated memory was 385.4 MB in the beginning and 1.6 GB in the end (delta: 1.2 GB). Free memory was 303.5 MB in the beginning and 697.7 MB in the end (delta: -394.2 MB). Peak memory consumption was 775.4 MB. Max. memory is 7.1 GB. [2019-10-07 09:08:44,592 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 144.7 MB. Free memory is still 120.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2610.29 ms. Allocated memory was 144.7 MB in the beginning and 259.0 MB in the end (delta: 114.3 MB). Free memory was 92.8 MB in the beginning and 197.4 MB in the end (delta: -104.5 MB). Peak memory consumption was 117.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 292.80 ms. Allocated memory is still 259.0 MB. Free memory was 197.4 MB in the beginning and 181.9 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8841.04 ms. Allocated memory was 259.0 MB in the beginning and 385.4 MB in the end (delta: 126.4 MB). Free memory was 181.9 MB in the beginning and 303.5 MB in the end (delta: -121.6 MB). Peak memory consumption was 187.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 97784.09 ms. Allocated memory was 385.4 MB in the beginning and 1.6 GB in the end (delta: 1.2 GB). Free memory was 303.5 MB in the beginning and 697.7 MB in the end (delta: -394.2 MB). Peak memory consumption was 775.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: 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...