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_synctty.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 09:07:34,593 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 09:07:34,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 09:07:34,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 09:07:34,609 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 09:07:34,611 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 09:07:34,612 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 09:07:34,614 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 09:07:34,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 09:07:34,616 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 09:07:34,617 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 09:07:34,618 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 09:07:34,619 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 09:07:34,620 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 09:07:34,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 09:07:34,622 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 09:07:34,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 09:07:34,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 09:07:34,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 09:07:34,628 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 09:07:34,629 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 09:07:34,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 09:07:34,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 09:07:34,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 09:07:34,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 09:07:34,635 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 09:07:34,635 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 09:07:34,636 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 09:07:34,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 09:07:34,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 09:07:34,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 09:07:34,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 09:07:34,640 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 09:07:34,641 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 09:07:34,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 09:07:34,642 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 09:07:34,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 09:07:34,643 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 09:07:34,643 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 09:07:34,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 09:07:34,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 09:07:34,648 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 09:07:34,677 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 09:07:34,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 09:07:34,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 09:07:34,679 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 09:07:34,680 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 09:07:34,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 09:07:34,680 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 09:07:34,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 09:07:34,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 09:07:34,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 09:07:34,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 09:07:34,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 09:07:34,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 09:07:34,683 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 09:07:34,683 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 09:07:34,683 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 09:07:34,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 09:07:34,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 09:07:34,684 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 09:07:34,684 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 09:07:34,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 09:07:34,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 09:07:34,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 09:07:34,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 09:07:34,685 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 09:07:34,685 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 09:07:34,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 09:07:34,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 09:07:34,686 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 09:07:34,988 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 09:07:35,004 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 09:07:35,009 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 09:07:35,011 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 09:07:35,011 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 09:07:35,012 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i [2019-10-07 09:07:35,088 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/640e728b2/adbc247f2d98440694dfb546c2d6bd1d/FLAGaf4d70844 [2019-10-07 09:07:35,990 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 09:07:35,991 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i [2019-10-07 09:07:36,027 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/640e728b2/adbc247f2d98440694dfb546c2d6bd1d/FLAGaf4d70844 [2019-10-07 09:07:36,417 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/640e728b2/adbc247f2d98440694dfb546c2d6bd1d [2019-10-07 09:07:36,428 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 09:07:36,430 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 09:07:36,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 09:07:36,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 09:07:36,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 09:07:36,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 09:07:36" (1/1) ... [2019-10-07 09:07:36,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46a202d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:07:36, skipping insertion in model container [2019-10-07 09:07:36,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 09:07:36" (1/1) ... [2019-10-07 09:07:36,448 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 09:07:36,594 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 09:07:38,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 09:07:38,589 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 09:07:38,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 09:07:39,263 INFO L192 MainTranslator]: Completed translation [2019-10-07 09:07:39,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:07:39 WrapperNode [2019-10-07 09:07:39,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 09:07:39,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 09:07:39,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 09:07:39,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 09:07:39,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:07:39" (1/1) ... [2019-10-07 09:07:39,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:07:39" (1/1) ... [2019-10-07 09:07:39,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:07:39" (1/1) ... [2019-10-07 09:07:39,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:07:39" (1/1) ... [2019-10-07 09:07:39,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:07:39" (1/1) ... [2019-10-07 09:07:39,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:07:39" (1/1) ... [2019-10-07 09:07:39,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:07:39" (1/1) ... [2019-10-07 09:07:39,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 09:07:39,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 09:07:39,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 09:07:39,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 09:07:39,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:07:39" (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 09:07:39,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 09:07:39,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 09:07:39,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-07 09:07:39,573 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-07 09:07:39,573 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-10-07 09:07:39,574 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-10-07 09:07:39,574 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-10-07 09:07:39,574 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-10-07 09:07:39,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2019-10-07 09:07:39,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab16p [2019-10-07 09:07:39,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __be16_to_cpup [2019-10-07 09:07:39,579 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-10-07 09:07:39,579 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-10-07 09:07:39,580 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2019-10-07 09:07:39,580 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-07 09:07:39,580 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2019-10-07 09:07:39,582 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2019-10-07 09:07:39,583 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2019-10-07 09:07:39,583 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2019-10-07 09:07:39,584 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-07 09:07:39,584 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_trylock_bh [2019-10-07 09:07:39,585 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2019-10-07 09:07:39,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-07 09:07:39,585 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-07 09:07:39,585 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-07 09:07:39,587 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-07 09:07:39,587 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-07 09:07:39,587 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2019-10-07 09:07:39,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_head_init [2019-10-07 09:07:39,587 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2019-10-07 09:07:39,588 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2019-10-07 09:07:39,588 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2019-10-07 09:07:39,588 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2019-10-07 09:07:39,588 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2019-10-07 09:07:39,588 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2019-10-07 09:07:39,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-07 09:07:39,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-07 09:07:39,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-07 09:07:39,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-07 09:07:39,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-07 09:07:39,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-07 09:07:39,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-07 09:07:39,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-07 09:07:39,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-07 09:07:39,590 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_get_baud_rate [2019-10-07 09:07:39,590 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2019-10-07 09:07:39,590 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2019-10-07 09:07:39,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_print_buffer [2019-10-07 09:07:39,590 INFO L138 BoogieDeclarations]: Found implementation of procedure sp_get [2019-10-07 09:07:39,590 INFO L138 BoogieDeclarations]: Found implementation of procedure sp_put [2019-10-07 09:07:39,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_open [2019-10-07 09:07:39,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_close [2019-10-07 09:07:39,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_hangup [2019-10-07 09:07:39,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_read [2019-10-07 09:07:39,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_write [2019-10-07 09:07:39,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_synctty_ioctl [2019-10-07 09:07:39,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_poll [2019-10-07 09:07:39,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_receive [2019-10-07 09:07:39,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_wakeup [2019-10-07 09:07:39,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_init [2019-10-07 09:07:39,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_ioctl [2019-10-07 09:07:39,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_process [2019-10-07 09:07:39,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_txmunge [2019-10-07 09:07:39,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_send [2019-10-07 09:07:39,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_push [2019-10-07 09:07:39,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_flush_output [2019-10-07 09:07:39,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_input [2019-10-07 09:07:39,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_cleanup [2019-10-07 09:07:39,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_ppp_channel_ops_2 [2019-10-07 09:07:39,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_target_type_1 [2019-10-07 09:07:39,593 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 09:07:39,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2019-10-07 09:07:39,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2019-10-07 09:07:39,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2019-10-07 09:07:39,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2019-10-07 09:07:39,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2019-10-07 09:07:39,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_12 [2019-10-07 09:07:39,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_13 [2019-10-07 09:07:39,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_dequeue_14 [2019-10-07 09:07:39,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_15 [2019-10-07 09:07:39,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_16 [2019-10-07 09:07:39,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_17 [2019-10-07 09:07:39,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_18 [2019-10-07 09:07:39,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_19 [2019-10-07 09:07:39,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_20 [2019-10-07 09:07:39,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2019-10-07 09:07:39,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-10-07 09:07:39,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2019-10-07 09:07:39,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2019-10-07 09:07:39,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2019-10-07 09:07:39,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-07 09:07:39,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-07 09:07:39,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-07 09:07:39,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-07 09:07:39,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2019-10-07 09:07:39,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-07 09:07:39,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2019-10-07 09:07:39,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2019-10-07 09:07:39,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2019-10-07 09:07:39,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2019-10-07 09:07:39,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2019-10-07 09:07:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-07 09:07:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2019-10-07 09:07:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2019-10-07 09:07:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-07 09:07:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-07 09:07:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __tasklet_schedule [2019-10-07 09:07:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-07 09:07:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-07 09:07:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock [2019-10-07 09:07:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock [2019-10-07 09:07:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_bh [2019-10-07 09:07:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2019-10-07 09:07:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-07 09:07:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_trylock_bh [2019-10-07 09:07:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_bh [2019-10-07 09:07:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2019-10-07 09:07:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-07 09:07:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_irq [2019-10-07 09:07:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_irq [2019-10-07 09:07:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2019-10-07 09:07:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-07 09:07:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure n_tty_ioctl_helper [2019-10-07 09:07:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_index [2019-10-07 09:07:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_input [2019-10-07 09:07:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_input_error [2019-10-07 09:07:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2019-10-07 09:07:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_channel [2019-10-07 09:07:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unit_number [2019-10-07 09:07:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2019-10-07 09:07:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2019-10-07 09:07:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-07 09:07:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2019-10-07 09:07:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2019-10-07 09:07:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-07 09:07:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2019-10-07 09:07:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2019-10-07 09:07:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2019-10-07 09:07:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2019-10-07 09:07:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2019-10-07 09:07:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_mode_ioctl [2019-10-07 09:07:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_ldisc [2019-10-07 09:07:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_termios_baud_rate [2019-10-07 09:07:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_ldisc [2019-10-07 09:07:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unthrottle [2019-10-07 09:07:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2019-10-07 09:07:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-07 09:07:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-07 09:07:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-07 09:07:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-07 09:07:39,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 09:07:39,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-07 09:07:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-07 09:07:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-10-07 09:07:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-10-07 09:07:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-10-07 09:07:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-10-07 09:07:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 09:07:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2019-10-07 09:07:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure __swab16p [2019-10-07 09:07:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure __be16_to_cpup [2019-10-07 09:07:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-07 09:07:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2019-10-07 09:07:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-07 09:07:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-07 09:07:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-10-07 09:07:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 09:07:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-10-07 09:07:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2019-10-07 09:07:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-07 09:07:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_bh [2019-10-07 09:07:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2019-10-07 09:07:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-07 09:07:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_trylock_bh [2019-10-07 09:07:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_bh [2019-10-07 09:07:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2019-10-07 09:07:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-07 09:07:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock [2019-10-07 09:07:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_irq [2019-10-07 09:07:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock [2019-10-07 09:07:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_irq [2019-10-07 09:07:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-07 09:07:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2019-10-07 09:07:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2019-10-07 09:07:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2019-10-07 09:07:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2019-10-07 09:07:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-07 09:07:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure spin_trylock_bh [2019-10-07 09:07:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 09:07:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-07 09:07:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2019-10-07 09:07:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 09:07:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 09:07:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2019-10-07 09:07:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2019-10-07 09:07:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-07 09:07:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-07 09:07:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-07 09:07:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-07 09:07:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-07 09:07:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-07 09:07:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-07 09:07:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2019-10-07 09:07:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2019-10-07 09:07:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-07 09:07:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-07 09:07:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2019-10-07 09:07:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2019-10-07 09:07:39,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2019-10-07 09:07:39,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2019-10-07 09:07:39,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_12 [2019-10-07 09:07:39,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_13 [2019-10-07 09:07:39,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_16 [2019-10-07 09:07:39,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_19 [2019-10-07 09:07:39,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_20 [2019-10-07 09:07:39,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2019-10-07 09:07:39,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_17 [2019-10-07 09:07:39,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_18 [2019-10-07 09:07:39,614 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2019-10-07 09:07:39,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 09:07:39,614 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_head_init [2019-10-07 09:07:39,614 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2019-10-07 09:07:39,614 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2019-10-07 09:07:39,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_dequeue_14 [2019-10-07 09:07:39,615 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2019-10-07 09:07:39,615 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-07 09:07:39,615 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2019-10-07 09:07:39,615 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2019-10-07 09:07:39,615 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2019-10-07 09:07:39,615 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2019-10-07 09:07:39,615 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2019-10-07 09:07:39,616 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2019-10-07 09:07:39,616 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2019-10-07 09:07:39,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_15 [2019-10-07 09:07:39,616 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2019-10-07 09:07:39,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-07 09:07:39,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2019-10-07 09:07:39,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2019-10-07 09:07:39,617 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 09:07:39,617 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-07 09:07:39,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 09:07:39,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_size_t [2019-10-07 09:07:39,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-07 09:07:39,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-07 09:07:39,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-07 09:07:39,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 09:07:39,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 09:07:39,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-07 09:07:39,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-07 09:07:39,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-07 09:07:39,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-07 09:07:39,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-07 09:07:39,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-07 09:07:39,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-07 09:07:39,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-07 09:07:39,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_ppp_channel_ops_2 [2019-10-07 09:07:39,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_target_type_1 [2019-10-07 09:07:39,619 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unthrottle [2019-10-07 09:07:39,619 INFO L130 BoogieDeclarations]: Found specification of procedure tty_termios_baud_rate [2019-10-07 09:07:39,620 INFO L130 BoogieDeclarations]: Found specification of procedure tty_get_baud_rate [2019-10-07 09:07:39,620 INFO L130 BoogieDeclarations]: Found specification of procedure tty_mode_ioctl [2019-10-07 09:07:39,620 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_ldisc [2019-10-07 09:07:39,620 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_ldisc [2019-10-07 09:07:39,620 INFO L130 BoogieDeclarations]: Found specification of procedure n_tty_ioctl_helper [2019-10-07 09:07:39,620 INFO L130 BoogieDeclarations]: Found specification of procedure __tasklet_schedule [2019-10-07 09:07:39,620 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2019-10-07 09:07:39,621 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2019-10-07 09:07:39,621 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2019-10-07 09:07:39,621 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2019-10-07 09:07:39,621 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_input [2019-10-07 09:07:39,621 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_input_error [2019-10-07 09:07:39,621 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_channel [2019-10-07 09:07:39,622 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2019-10-07 09:07:39,622 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_index [2019-10-07 09:07:39,622 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unit_number [2019-10-07 09:07:39,622 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2019-10-07 09:07:39,622 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_txmunge [2019-10-07 09:07:39,622 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_send [2019-10-07 09:07:39,622 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_ioctl [2019-10-07 09:07:39,623 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_process [2019-10-07 09:07:39,623 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_push [2019-10-07 09:07:39,623 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_flush_output [2019-10-07 09:07:39,623 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_input [2019-10-07 09:07:39,623 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_print_buffer [2019-10-07 09:07:39,623 INFO L130 BoogieDeclarations]: Found specification of procedure sp_get [2019-10-07 09:07:39,624 INFO L130 BoogieDeclarations]: Found specification of procedure sp_put [2019-10-07 09:07:39,624 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_open [2019-10-07 09:07:39,624 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_close [2019-10-07 09:07:39,624 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_hangup [2019-10-07 09:07:39,624 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_read [2019-10-07 09:07:39,624 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_write [2019-10-07 09:07:39,624 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_synctty_ioctl [2019-10-07 09:07:39,624 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_poll [2019-10-07 09:07:39,625 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_receive [2019-10-07 09:07:39,625 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_wakeup [2019-10-07 09:07:39,625 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_init [2019-10-07 09:07:39,625 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-07 09:07:39,625 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_cleanup [2019-10-07 09:07:39,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-07 09:07:39,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-07 09:07:39,626 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 09:07:39,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2019-10-07 09:07:39,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-10-07 09:07:39,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2019-10-07 09:07:39,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2019-10-07 09:07:39,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2019-10-07 09:07:39,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-07 09:07:39,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-07 09:07:39,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-07 09:07:39,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-07 09:07:39,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2019-10-07 09:07:39,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2019-10-07 09:07:39,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2019-10-07 09:07:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2019-10-07 09:07:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-07 09:07:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 09:07:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 09:07:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-07 09:07:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 09:07:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 09:07:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-07 09:07:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-07 09:07:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-07 09:07:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-07 09:07:40,407 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-07 09:07:49,964 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 09:07:49,965 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 09:07:49,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 09:07:49 BoogieIcfgContainer [2019-10-07 09:07:49,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 09:07:49,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 09:07:49,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 09:07:49,972 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 09:07:49,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 09:07:36" (1/3) ... [2019-10-07 09:07:49,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a7f3d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 09:07:49, skipping insertion in model container [2019-10-07 09:07:49,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:07:39" (2/3) ... [2019-10-07 09:07:49,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a7f3d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 09:07:49, skipping insertion in model container [2019-10-07 09:07:49,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 09:07:49" (3/3) ... [2019-10-07 09:07:49,978 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i [2019-10-07 09:07:49,990 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 09:07:50,004 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 09:07:50,016 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 09:07:50,061 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 09:07:50,061 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 09:07:50,061 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 09:07:50,061 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 09:07:50,061 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 09:07:50,061 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 09:07:50,062 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 09:07:50,062 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 09:07:50,110 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states. [2019-10-07 09:07:50,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-10-07 09:07:50,141 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:07:50,142 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 09:07:50,145 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:07:50,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:07:50,152 INFO L82 PathProgramCache]: Analyzing trace with hash 978774204, now seen corresponding path program 1 times [2019-10-07 09:07:50,161 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:07:50,162 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:50,162 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:50,162 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:50,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:07:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:07:50,722 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 09:07:50,723 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:50,724 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 09:07:50,724 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 09:07:50,728 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 09:07:50,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 09:07:50,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 09:07:50,746 INFO L87 Difference]: Start difference. First operand 812 states. Second operand 3 states. [2019-10-07 09:07:51,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:07:51,015 INFO L93 Difference]: Finished difference Result 2188 states and 2811 transitions. [2019-10-07 09:07:51,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 09:07:51,017 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2019-10-07 09:07:51,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:07:51,060 INFO L225 Difference]: With dead ends: 2188 [2019-10-07 09:07:51,060 INFO L226 Difference]: Without dead ends: 1438 [2019-10-07 09:07:51,073 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 09:07:51,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2019-10-07 09:07:51,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 1438. [2019-10-07 09:07:51,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1438 states. [2019-10-07 09:07:51,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 1795 transitions. [2019-10-07 09:07:51,348 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 1795 transitions. Word has length 95 [2019-10-07 09:07:51,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:07:51,349 INFO L462 AbstractCegarLoop]: Abstraction has 1438 states and 1795 transitions. [2019-10-07 09:07:51,350 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 09:07:51,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 1795 transitions. [2019-10-07 09:07:51,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-07 09:07:51,357 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:07:51,357 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 09:07:51,358 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:07:51,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:07:51,358 INFO L82 PathProgramCache]: Analyzing trace with hash -2098059860, now seen corresponding path program 1 times [2019-10-07 09:07:51,358 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:07:51,359 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:51,359 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:51,359 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:51,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:07:51,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:07:51,717 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 09:07:51,723 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:51,723 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 09:07:51,724 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 09:07:51,728 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 09:07:51,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 09:07:51,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-07 09:07:51,729 INFO L87 Difference]: Start difference. First operand 1438 states and 1795 transitions. Second operand 6 states. [2019-10-07 09:07:52,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:07:52,944 INFO L93 Difference]: Finished difference Result 2852 states and 3614 transitions. [2019-10-07 09:07:52,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 09:07:52,945 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 98 [2019-10-07 09:07:52,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:07:52,966 INFO L225 Difference]: With dead ends: 2852 [2019-10-07 09:07:52,966 INFO L226 Difference]: Without dead ends: 2834 [2019-10-07 09:07:52,969 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 09:07:52,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2834 states. [2019-10-07 09:07:53,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2834 to 2834. [2019-10-07 09:07:53,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2834 states. [2019-10-07 09:07:53,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2834 states to 2834 states and 3594 transitions. [2019-10-07 09:07:53,130 INFO L78 Accepts]: Start accepts. Automaton has 2834 states and 3594 transitions. Word has length 98 [2019-10-07 09:07:53,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:07:53,130 INFO L462 AbstractCegarLoop]: Abstraction has 2834 states and 3594 transitions. [2019-10-07 09:07:53,131 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 09:07:53,131 INFO L276 IsEmpty]: Start isEmpty. Operand 2834 states and 3594 transitions. [2019-10-07 09:07:53,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-07 09:07:53,143 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:07:53,143 INFO L385 BasicCegarLoop]: trace histogram [10, 10, 10, 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] [2019-10-07 09:07:53,143 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:07:53,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:07:53,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1252515599, now seen corresponding path program 1 times [2019-10-07 09:07:53,144 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:07:53,144 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:53,144 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:53,145 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:53,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:07:53,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:07:53,409 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2019-10-07 09:07:53,409 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:53,409 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 09:07:53,410 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 09:07:53,411 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 09:07:53,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 09:07:53,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 09:07:53,412 INFO L87 Difference]: Start difference. First operand 2834 states and 3594 transitions. Second operand 3 states. [2019-10-07 09:07:53,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:07:53,651 INFO L93 Difference]: Finished difference Result 7034 states and 8901 transitions. [2019-10-07 09:07:53,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 09:07:53,651 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2019-10-07 09:07:53,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:07:53,681 INFO L225 Difference]: With dead ends: 7034 [2019-10-07 09:07:53,681 INFO L226 Difference]: Without dead ends: 4232 [2019-10-07 09:07:53,692 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 09:07:53,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4232 states. [2019-10-07 09:07:53,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4232 to 4212. [2019-10-07 09:07:53,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4212 states. [2019-10-07 09:07:53,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4212 states to 4212 states and 5326 transitions. [2019-10-07 09:07:53,888 INFO L78 Accepts]: Start accepts. Automaton has 4212 states and 5326 transitions. Word has length 157 [2019-10-07 09:07:53,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:07:53,888 INFO L462 AbstractCegarLoop]: Abstraction has 4212 states and 5326 transitions. [2019-10-07 09:07:53,889 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 09:07:53,889 INFO L276 IsEmpty]: Start isEmpty. Operand 4212 states and 5326 transitions. [2019-10-07 09:07:53,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-10-07 09:07:53,900 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:07:53,900 INFO L385 BasicCegarLoop]: trace histogram [10, 10, 10, 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] [2019-10-07 09:07:53,901 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:07:53,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:07:53,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1374047328, now seen corresponding path program 1 times [2019-10-07 09:07:53,901 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:07:53,902 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:53,902 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:53,902 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:53,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:07:53,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:07:54,136 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2019-10-07 09:07:54,137 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:54,137 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 09:07:54,137 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 09:07:54,139 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 09:07:54,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 09:07:54,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 09:07:54,140 INFO L87 Difference]: Start difference. First operand 4212 states and 5326 transitions. Second operand 3 states. [2019-10-07 09:07:54,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:07:54,425 INFO L93 Difference]: Finished difference Result 10322 states and 12999 transitions. [2019-10-07 09:07:54,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 09:07:54,426 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175 [2019-10-07 09:07:54,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:07:54,480 INFO L225 Difference]: With dead ends: 10322 [2019-10-07 09:07:54,480 INFO L226 Difference]: Without dead ends: 6142 [2019-10-07 09:07:54,501 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 09:07:54,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6142 states. [2019-10-07 09:07:54,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6142 to 6124. [2019-10-07 09:07:54,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6124 states. [2019-10-07 09:07:54,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6124 states to 6124 states and 7690 transitions. [2019-10-07 09:07:54,875 INFO L78 Accepts]: Start accepts. Automaton has 6124 states and 7690 transitions. Word has length 175 [2019-10-07 09:07:54,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:07:54,876 INFO L462 AbstractCegarLoop]: Abstraction has 6124 states and 7690 transitions. [2019-10-07 09:07:54,876 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 09:07:54,877 INFO L276 IsEmpty]: Start isEmpty. Operand 6124 states and 7690 transitions. [2019-10-07 09:07:54,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-07 09:07:54,902 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:07:54,902 INFO L385 BasicCegarLoop]: trace histogram [12, 12, 12, 3, 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] [2019-10-07 09:07:54,902 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:07:54,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:07:54,903 INFO L82 PathProgramCache]: Analyzing trace with hash 727239341, now seen corresponding path program 1 times [2019-10-07 09:07:54,903 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:07:54,904 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:54,904 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:54,904 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:54,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:07:54,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:07:55,047 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2019-10-07 09:07:55,047 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:55,048 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 09:07:55,048 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 09:07:55,048 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 09:07:55,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 09:07:55,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 09:07:55,049 INFO L87 Difference]: Start difference. First operand 6124 states and 7690 transitions. Second operand 3 states. [2019-10-07 09:07:55,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:07:55,510 INFO L93 Difference]: Finished difference Result 15002 states and 18841 transitions. [2019-10-07 09:07:55,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 09:07:55,511 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-10-07 09:07:55,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:07:55,563 INFO L225 Difference]: With dead ends: 15002 [2019-10-07 09:07:55,563 INFO L226 Difference]: Without dead ends: 8918 [2019-10-07 09:07:55,584 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 09:07:55,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8918 states. [2019-10-07 09:07:55,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8918 to 8898. [2019-10-07 09:07:55,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8898 states. [2019-10-07 09:07:55,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8898 states to 8898 states and 11078 transitions. [2019-10-07 09:07:55,956 INFO L78 Accepts]: Start accepts. Automaton has 8898 states and 11078 transitions. Word has length 190 [2019-10-07 09:07:55,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:07:55,957 INFO L462 AbstractCegarLoop]: Abstraction has 8898 states and 11078 transitions. [2019-10-07 09:07:55,957 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 09:07:55,957 INFO L276 IsEmpty]: Start isEmpty. Operand 8898 states and 11078 transitions. [2019-10-07 09:07:55,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-07 09:07:55,975 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:07:55,975 INFO L385 BasicCegarLoop]: trace histogram [12, 12, 12, 3, 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] [2019-10-07 09:07:55,976 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:07:55,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:07:55,976 INFO L82 PathProgramCache]: Analyzing trace with hash -693603727, now seen corresponding path program 1 times [2019-10-07 09:07:55,976 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:07:55,977 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:55,977 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:55,977 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:55,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:07:56,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:07:56,100 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2019-10-07 09:07:56,101 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:56,101 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 09:07:56,101 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 09:07:56,102 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 09:07:56,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 09:07:56,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 09:07:56,102 INFO L87 Difference]: Start difference. First operand 8898 states and 11078 transitions. Second operand 3 states. [2019-10-07 09:07:56,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:07:56,419 INFO L93 Difference]: Finished difference Result 13408 states and 16914 transitions. [2019-10-07 09:07:56,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 09:07:56,419 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2019-10-07 09:07:56,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:07:56,476 INFO L225 Difference]: With dead ends: 13408 [2019-10-07 09:07:56,476 INFO L226 Difference]: Without dead ends: 8938 [2019-10-07 09:07:56,495 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 09:07:56,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8938 states. [2019-10-07 09:07:56,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8938 to 8918. [2019-10-07 09:07:56,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8918 states. [2019-10-07 09:07:56,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8918 states to 8918 states and 11098 transitions. [2019-10-07 09:07:56,874 INFO L78 Accepts]: Start accepts. Automaton has 8918 states and 11098 transitions. Word has length 194 [2019-10-07 09:07:56,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:07:56,875 INFO L462 AbstractCegarLoop]: Abstraction has 8918 states and 11098 transitions. [2019-10-07 09:07:56,875 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 09:07:56,875 INFO L276 IsEmpty]: Start isEmpty. Operand 8918 states and 11098 transitions. [2019-10-07 09:07:56,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-07 09:07:56,893 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:07:56,893 INFO L385 BasicCegarLoop]: trace histogram [12, 12, 12, 3, 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] [2019-10-07 09:07:56,894 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:07:56,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:07:56,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1578012143, now seen corresponding path program 1 times [2019-10-07 09:07:56,894 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:07:56,894 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:56,894 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:56,895 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:56,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:07:56,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:07:57,193 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2019-10-07 09:07:57,194 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:57,194 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 09:07:57,194 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 09:07:57,195 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 09:07:57,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 09:07:57,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-10-07 09:07:57,196 INFO L87 Difference]: Start difference. First operand 8918 states and 11098 transitions. Second operand 9 states. [2019-10-07 09:08:16,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:08:16,566 INFO L93 Difference]: Finished difference Result 20504 states and 25998 transitions. [2019-10-07 09:08:16,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 09:08:16,566 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 195 [2019-10-07 09:08:16,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:08:16,641 INFO L225 Difference]: With dead ends: 20504 [2019-10-07 09:08:16,641 INFO L226 Difference]: Without dead ends: 11626 [2019-10-07 09:08:16,675 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2019-10-07 09:08:16,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11626 states. [2019-10-07 09:08:17,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11626 to 11190. [2019-10-07 09:08:17,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11190 states. [2019-10-07 09:08:17,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11190 states to 11190 states and 14074 transitions. [2019-10-07 09:08:17,257 INFO L78 Accepts]: Start accepts. Automaton has 11190 states and 14074 transitions. Word has length 195 [2019-10-07 09:08:17,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:08:17,259 INFO L462 AbstractCegarLoop]: Abstraction has 11190 states and 14074 transitions. [2019-10-07 09:08:17,260 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 09:08:17,260 INFO L276 IsEmpty]: Start isEmpty. Operand 11190 states and 14074 transitions. [2019-10-07 09:08:17,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2019-10-07 09:08:17,293 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:08:17,293 INFO L385 BasicCegarLoop]: trace histogram [14, 14, 14, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:08:17,294 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:08:17,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:08:17,294 INFO L82 PathProgramCache]: Analyzing trace with hash 601308471, now seen corresponding path program 1 times [2019-10-07 09:08:17,294 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:08:17,295 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:08:17,295 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:08:17,295 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:08:17,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:08:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:08:17,611 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2019-10-07 09:08:17,611 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:08:17,612 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 09:08:17,612 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 09:08:17,613 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 09:08:17,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 09:08:17,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 09:08:17,613 INFO L87 Difference]: Start difference. First operand 11190 states and 14074 transitions. Second operand 5 states. [2019-10-07 09:08:17,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:08:17,913 INFO L93 Difference]: Finished difference Result 22474 states and 28519 transitions. [2019-10-07 09:08:17,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 09:08:17,913 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 260 [2019-10-07 09:08:17,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:08:17,977 INFO L225 Difference]: With dead ends: 22474 [2019-10-07 09:08:17,978 INFO L226 Difference]: Without dead ends: 11324 [2019-10-07 09:08:18,024 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 09:08:18,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11324 states. [2019-10-07 09:08:18,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11324 to 11278. [2019-10-07 09:08:18,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11278 states. [2019-10-07 09:08:18,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11278 states to 11278 states and 14170 transitions. [2019-10-07 09:08:18,469 INFO L78 Accepts]: Start accepts. Automaton has 11278 states and 14170 transitions. Word has length 260 [2019-10-07 09:08:18,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:08:18,634 INFO L462 AbstractCegarLoop]: Abstraction has 11278 states and 14170 transitions. [2019-10-07 09:08:18,634 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 09:08:18,634 INFO L276 IsEmpty]: Start isEmpty. Operand 11278 states and 14170 transitions. [2019-10-07 09:08:18,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2019-10-07 09:08:18,666 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:08:18,667 INFO L385 BasicCegarLoop]: trace histogram [14, 14, 13, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:08:18,667 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:08:18,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:08:18,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1636118679, now seen corresponding path program 1 times [2019-10-07 09:08:18,668 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:08:18,668 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:08:18,668 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:08:18,669 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:08:18,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:08:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:08:19,047 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2019-10-07 09:08:19,047 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:08:19,047 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 09:08:19,048 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 09:08:19,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:08:19,555 INFO L256 TraceCheckSpWp]: Trace formula consists of 1870 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-07 09:08:19,574 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 09:08:19,639 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 09:08:19,795 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 181 proven. 21 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2019-10-07 09:08:19,795 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 09:08:20,036 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 09:08:20,200 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2019-10-07 09:08:20,201 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 09:08:20,245 INFO L162 IcfgInterpreter]: Started Sifa with 187 locations of interest [2019-10-07 09:08:20,245 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 09:08:20,253 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 09:08:20,262 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 09:08:20,263 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 09:08:26,942 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 519 [2019-10-07 09:08:28,618 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-10-07 09:08:28,771 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 508 [2019-10-07 09:08:29,020 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 507 [2019-10-07 09:08:29,252 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 506 [2019-10-07 09:08:29,389 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 506 [2019-10-07 09:08:29,519 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 506 [2019-10-07 09:08:29,765 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 582 [2019-10-07 09:08:30,510 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 582 [2019-10-07 09:08:30,755 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 582 [2019-10-07 09:08:31,011 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 582 [2019-10-07 09:08:31,424 WARN L191 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 584 DAG size of output: 582 [2019-10-07 09:08:31,625 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 582 [2019-10-07 09:08:31,845 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 582 [2019-10-07 09:08:32,007 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 582 [2019-10-07 09:08:32,162 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 582 [2019-10-07 09:08:32,315 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 582 [2019-10-07 09:08:32,330 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 193 for LOIs [2019-10-07 09:08:32,708 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 582 [2019-10-07 09:08:32,710 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 598 for LOIs [2019-10-07 09:08:32,853 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 598 [2019-10-07 09:08:32,987 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 598 [2019-10-07 09:08:33,146 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 636 [2019-10-07 09:08:33,746 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 606 [2019-10-07 09:08:33,893 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 606 [2019-10-07 09:08:34,072 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 09:08:34,421 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 09:08:34,422 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: ~tmp~9.base, ~tmp~9.offset := #t~malloc89.base, #t~malloc89.offset;~p~1.base, ~p~1.offset := ~tmp~9.base, ~tmp~9.offset;assume 0 != (if 0 != (~p~1.base + ~p~1.offset) % 4294967296 then 1 else 0);#res.base, #res.offset := ~p~1.base, ~p~1.offset; 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: ~tmp~9.base, ~tmp~9.offset := #t~malloc89.base, #t~malloc89.offset;~p~1.base, ~p~1.offset := ~tmp~9.base, ~tmp~9.offset;assume 0 != (if 0 != (~p~1.base + ~p~1.offset) % 4294967296 then 1 else 0);#res.base, #res.offset := ~p~1.base, ~p~1.offset; 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 09:08:34,431 INFO L168 Benchmark]: Toolchain (without parser) took 58001.86 ms. Allocated memory was 145.2 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 93.6 MB in the beginning and 839.7 MB in the end (delta: -746.1 MB). Peak memory consumption was 318.7 MB. Max. memory is 7.1 GB. [2019-10-07 09:08:34,432 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.2 MB. Free memory is still 121.5 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-07 09:08:34,434 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2833.13 ms. Allocated memory was 145.2 MB in the beginning and 254.8 MB in the end (delta: 109.6 MB). Free memory was 93.4 MB in the beginning and 210.6 MB in the end (delta: -117.2 MB). Peak memory consumption was 116.8 MB. Max. memory is 7.1 GB. [2019-10-07 09:08:34,435 INFO L168 Benchmark]: Boogie Preprocessor took 245.46 ms. Allocated memory is still 254.8 MB. Free memory was 210.6 MB in the beginning and 197.3 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2019-10-07 09:08:34,436 INFO L168 Benchmark]: RCFGBuilder took 10456.96 ms. Allocated memory was 254.8 MB in the beginning and 329.3 MB in the end (delta: 74.4 MB). Free memory was 197.3 MB in the beginning and 178.4 MB in the end (delta: 19.0 MB). Peak memory consumption was 195.3 MB. Max. memory is 7.1 GB. [2019-10-07 09:08:34,444 INFO L168 Benchmark]: TraceAbstraction took 44461.16 ms. Allocated memory was 329.3 MB in the beginning and 1.2 GB in the end (delta: 880.8 MB). Free memory was 178.4 MB in the beginning and 839.7 MB in the end (delta: -661.3 MB). Peak memory consumption was 219.5 MB. Max. memory is 7.1 GB. [2019-10-07 09:08:34,453 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 145.2 MB. Free memory is still 121.5 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2833.13 ms. Allocated memory was 145.2 MB in the beginning and 254.8 MB in the end (delta: 109.6 MB). Free memory was 93.4 MB in the beginning and 210.6 MB in the end (delta: -117.2 MB). Peak memory consumption was 116.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 245.46 ms. Allocated memory is still 254.8 MB. Free memory was 210.6 MB in the beginning and 197.3 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10456.96 ms. Allocated memory was 254.8 MB in the beginning and 329.3 MB in the end (delta: 74.4 MB). Free memory was 197.3 MB in the beginning and 178.4 MB in the end (delta: 19.0 MB). Peak memory consumption was 195.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 44461.16 ms. Allocated memory was 329.3 MB in the beginning and 1.2 GB in the end (delta: 880.8 MB). Free memory was 178.4 MB in the beginning and 839.7 MB in the end (delta: -661.3 MB). Peak memory consumption was 219.5 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: ~tmp~9.base, ~tmp~9.offset := #t~malloc89.base, #t~malloc89.offset;~p~1.base, ~p~1.offset := ~tmp~9.base, ~tmp~9.offset;assume 0 != (if 0 != (~p~1.base + ~p~1.offset) % 4294967296 then 1 else 0);#res.base, #res.offset := ~p~1.base, ~p~1.offset; de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ~tmp~9.base, ~tmp~9.offset := #t~malloc89.base, #t~malloc89.offset;~p~1.base, ~p~1.offset := ~tmp~9.base, ~tmp~9.offset;assume 0 != (if 0 != (~p~1.base + ~p~1.offset) % 4294967296 then 1 else 0);#res.base, #res.offset := ~p~1.base, ~p~1.offset;: 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...