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-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 12:57:55,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 12:57:55,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 12:57:55,805 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 12:57:55,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 12:57:55,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 12:57:55,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 12:57:55,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 12:57:55,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 12:57:55,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 12:57:55,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 12:57:55,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 12:57:55,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 12:57:55,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 12:57:55,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 12:57:55,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 12:57:55,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 12:57:55,840 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 12:57:55,842 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 12:57:55,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 12:57:55,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 12:57:55,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 12:57:55,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 12:57:55,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 12:57:55,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 12:57:55,859 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 12:57:55,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 12:57:55,861 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 12:57:55,862 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 12:57:55,863 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 12:57:55,864 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 12:57:55,865 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 12:57:55,866 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 12:57:55,867 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 12:57:55,868 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 12:57:55,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 12:57:55,869 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 12:57:55,869 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 12:57:55,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 12:57:55,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 12:57:55,872 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 12:57:55,872 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 12:57:55,908 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 12:57:55,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 12:57:55,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 12:57:55,910 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 12:57:55,910 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 12:57:55,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 12:57:55,910 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 12:57:55,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 12:57:55,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 12:57:55,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 12:57:55,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 12:57:55,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 12:57:55,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 12:57:55,912 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 12:57:55,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 12:57:55,912 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 12:57:55,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 12:57:55,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 12:57:55,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 12:57:55,913 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 12:57:55,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 12:57:55,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 12:57:55,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 12:57:55,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 12:57:55,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 12:57:55,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 12:57:55,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 12:57:55,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 12:57:55,915 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 12:57:56,212 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 12:57:56,231 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 12:57:56,236 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 12:57:56,238 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 12:57:56,238 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 12:57:56,239 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-07 12:57:56,316 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d83e5b6a3/d92f84ae6eaf424ea5c432ca61f67375/FLAG692756d83 [2019-10-07 12:57:57,160 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 12:57:57,160 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-07 12:57:57,209 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d83e5b6a3/d92f84ae6eaf424ea5c432ca61f67375/FLAG692756d83 [2019-10-07 12:57:57,659 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d83e5b6a3/d92f84ae6eaf424ea5c432ca61f67375 [2019-10-07 12:57:57,670 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 12:57:57,672 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 12:57:57,677 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 12:57:57,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 12:57:57,681 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 12:57:57,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:57:57" (1/1) ... [2019-10-07 12:57:57,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f41ddf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:57:57, skipping insertion in model container [2019-10-07 12:57:57,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:57:57" (1/1) ... [2019-10-07 12:57:57,694 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 12:57:57,852 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 12:57:59,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 12:57:59,814 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 12:58:00,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 12:58:00,630 INFO L192 MainTranslator]: Completed translation [2019-10-07 12:58:00,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:58:00 WrapperNode [2019-10-07 12:58:00,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 12:58:00,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 12:58:00,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 12:58:00,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 12:58:00,648 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:58:00" (1/1) ... [2019-10-07 12:58:00,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:58:00" (1/1) ... [2019-10-07 12:58:00,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:58:00" (1/1) ... [2019-10-07 12:58:00,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:58:00" (1/1) ... [2019-10-07 12:58:00,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:58:00" (1/1) ... [2019-10-07 12:58:00,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:58:00" (1/1) ... [2019-10-07 12:58:00,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:58:00" (1/1) ... [2019-10-07 12:58:00,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 12:58:00,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 12:58:00,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 12:58:00,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 12:58:00,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:58:00" (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 12:58:01,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 12:58:01,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 12:58:01,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-07 12:58:01,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2019-10-07 12:58:01,024 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-07 12:58:01,026 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-10-07 12:58:01,027 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-10-07 12:58:01,028 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-10-07 12:58:01,028 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-10-07 12:58:01,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-07 12:58:01,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-07 12:58:01,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-07 12:58:01,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-07 12:58:01,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-07 12:58:01,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-07 12:58:01,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-07 12:58:01,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-07 12:58:01,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2019-10-07 12:58:01,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-07 12:58:01,035 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-07 12:58:01,035 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-07 12:58:01,035 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-07 12:58:01,035 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2019-10-07 12:58:01,036 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-07 12:58:01,036 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2019-10-07 12:58:01,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-07 12:58:01,036 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-07 12:58:01,036 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-07 12:58:01,036 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-07 12:58:01,036 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2019-10-07 12:58:01,037 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2019-10-07 12:58:01,037 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2019-10-07 12:58:01,037 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-10-07 12:58:01,037 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice [2019-10-07 12:58:01,037 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2019-10-07 12:58:01,038 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2019-10-07 12:58:01,038 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2019-10-07 12:58:01,038 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2019-10-07 12:58:01,038 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2019-10-07 12:58:01,038 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2019-10-07 12:58:01,038 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_queue_stopped [2019-10-07 12:58:01,038 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2019-10-07 12:58:01,039 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2019-10-07 12:58:01,039 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_alloc_bufs [2019-10-07 12:58:01,039 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_bufs [2019-10-07 12:58:01,039 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_realloc_bufs [2019-10-07 12:58:01,039 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_lock [2019-10-07 12:58:01,039 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_unlock [2019-10-07 12:58:01,039 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_bump [2019-10-07 12:58:01,040 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_encaps [2019-10-07 12:58:01,040 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_write_wakeup [2019-10-07 12:58:01,040 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_tx_timeout [2019-10-07 12:58:01,040 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_xmit [2019-10-07 12:58:01,040 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_close [2019-10-07 12:58:01,040 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_open [2019-10-07 12:58:01,040 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_change_mtu [2019-10-07 12:58:01,041 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_get_stats64 [2019-10-07 12:58:01,041 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_init [2019-10-07 12:58:01,041 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_uninit [2019-10-07 12:58:01,042 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_netdev [2019-10-07 12:58:01,042 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_setup [2019-10-07 12:58:01,042 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_receive_buf [2019-10-07 12:58:01,042 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_sync [2019-10-07 12:58:01,042 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_alloc [2019-10-07 12:58:01,042 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_open [2019-10-07 12:58:01,042 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_close [2019-10-07 12:58:01,043 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_hangup [2019-10-07 12:58:01,043 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_esc [2019-10-07 12:58:01,043 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_unesc [2019-10-07 12:58:01,043 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_esc6 [2019-10-07 12:58:01,043 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_unesc6 [2019-10-07 12:58:01,043 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_ioctl [2019-10-07 12:58:01,043 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_compat_ioctl [2019-10-07 12:58:01,044 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_ioctl [2019-10-07 12:58:01,045 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_init [2019-10-07 12:58:01,045 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_exit [2019-10-07 12:58:01,045 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_outfill [2019-10-07 12:58:01,046 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_keepalive [2019-10-07 12:58:01,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_target_type_3 [2019-10-07 12:58:01,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_4 [2019-10-07 12:58:01,046 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2019-10-07 12:58:01,047 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_1 [2019-10-07 12:58:01,047 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2019-10-07 12:58:01,047 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_2 [2019-10-07 12:58:01,047 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2019-10-07 12:58:01,047 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2019-10-07 12:58:01,048 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2019-10-07 12:58:01,048 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2019-10-07 12:58:01,049 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 12:58:01,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_1 [2019-10-07 12:58:01,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_2 [2019-10-07 12:58:01,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_sl_alloc_bufs_3 [2019-10-07 12:58:01,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdevice_4 [2019-10-07 12:58:01,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_5 [2019-10-07 12:58:01,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_6 [2019-10-07 12:58:01,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_7 [2019-10-07 12:58:01,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_8 [2019-10-07 12:58:01,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_9 [2019-10-07 12:58:01,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_10 [2019-10-07 12:58:01,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_11 [2019-10-07 12:58:01,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_12 [2019-10-07 12:58:01,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_13 [2019-10-07 12:58:01,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_14 [2019-10-07 12:58:01,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_15 [2019-10-07 12:58:01,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_16 [2019-10-07 12:58:01,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_17 [2019-10-07 12:58:01,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_slip_open_18 [2019-10-07 12:58:01,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-07 12:58:01,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_callback_ret_val [2019-10-07 12:58:01,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2019-10-07 12:58:01,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-07 12:58:01,052 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-07 12:58:01,052 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-07 12:58:01,052 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_bh [2019-10-07 12:58:01,053 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-07 12:58:01,053 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_bh [2019-10-07 12:58:01,053 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2019-10-07 12:58:01,053 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2019-10-07 12:58:01,053 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2019-10-07 12:58:01,054 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2019-10-07 12:58:01,054 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2019-10-07 12:58:01,054 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2019-10-07 12:58:01,054 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2019-10-07 12:58:01,054 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2019-10-07 12:58:01,055 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2019-10-07 12:58:01,056 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2019-10-07 12:58:01,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-07 12:58:01,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-07 12:58:01,056 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-07 12:58:01,056 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2019-10-07 12:58:01,056 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2019-10-07 12:58:01,057 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2019-10-07 12:58:01,057 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2019-10-07 12:58:01,058 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-07 12:58:01,061 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdevice [2019-10-07 12:58:01,061 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2019-10-07 12:58:01,061 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2019-10-07 12:58:01,062 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-07 12:58:01,062 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_compress [2019-10-07 12:58:01,062 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2019-10-07 12:58:01,063 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_init [2019-10-07 12:58:01,063 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_remember [2019-10-07 12:58:01,063 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_uncompress [2019-10-07 12:58:01,064 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_chars_in_buffer [2019-10-07 12:58:01,067 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_devnum [2019-10-07 12:58:01,067 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2019-10-07 12:58:01,068 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_mode_ioctl [2019-10-07 12:58:01,068 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_ldisc [2019-10-07 12:58:01,068 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_ldisc [2019-10-07 12:58:01,068 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2019-10-07 12:58:01,068 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice_queue [2019-10-07 12:58:01,068 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-07 12:58:01,068 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-07 12:58:01,069 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-07 12:58:01,069 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-07 12:58:01,069 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-07 12:58:01,069 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-07 12:58:01,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 12:58:01,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-07 12:58:01,069 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-07 12:58:01,070 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-10-07 12:58:01,070 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-10-07 12:58:01,070 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-10-07 12:58:01,070 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-10-07 12:58:01,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 12:58:01,074 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-07 12:58:01,074 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-07 12:58:01,074 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-07 12:58:01,074 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-07 12:58:01,074 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 12:58:01,074 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-07 12:58:01,074 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-07 12:58:01,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 12:58:01,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-07 12:58:01,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-07 12:58:01,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 12:58:01,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-07 12:58:01,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 12:58:01,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-07 12:58:01,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-07 12:58:01,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-07 12:58:01,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-07 12:58:01,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-07 12:58:01,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-07 12:58:01,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-07 12:58:01,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-07 12:58:01,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-07 12:58:01,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2019-10-07 12:58:01,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_callback_ret_val [2019-10-07 12:58:01,077 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-07 12:58:01,077 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-07 12:58:01,077 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2019-10-07 12:58:01,077 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-07 12:58:01,077 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-07 12:58:01,078 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-07 12:58:01,078 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_bh [2019-10-07 12:58:01,078 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-07 12:58:01,078 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_bh [2019-10-07 12:58:01,078 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-07 12:58:01,078 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-07 12:58:01,078 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2019-10-07 12:58:01,078 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-07 12:58:01,079 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2019-10-07 12:58:01,079 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2019-10-07 12:58:01,079 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2019-10-07 12:58:01,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_2 [2019-10-07 12:58:01,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_8 [2019-10-07 12:58:01,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_10 [2019-10-07 12:58:01,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_12 [2019-10-07 12:58:01,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_14 [2019-10-07 12:58:01,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_16 [2019-10-07 12:58:01,080 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2019-10-07 12:58:01,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_7 [2019-10-07 12:58:01,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_9 [2019-10-07 12:58:01,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_11 [2019-10-07 12:58:01,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_13 [2019-10-07 12:58:01,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_15 [2019-10-07 12:58:01,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_17 [2019-10-07 12:58:01,081 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2019-10-07 12:58:01,081 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2019-10-07 12:58:01,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_1 [2019-10-07 12:58:01,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_5 [2019-10-07 12:58:01,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_6 [2019-10-07 12:58:01,081 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-07 12:58:01,081 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-07 12:58:01,082 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-07 12:58:01,082 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-07 12:58:01,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_target_type_3 [2019-10-07 12:58:01,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_4 [2019-10-07 12:58:01,082 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2019-10-07 12:58:01,082 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_1 [2019-10-07 12:58:01,082 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2019-10-07 12:58:01,083 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_2 [2019-10-07 12:58:01,083 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2019-10-07 12:58:01,083 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2019-10-07 12:58:01,083 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2019-10-07 12:58:01,083 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2019-10-07 12:58:01,083 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-07 12:58:01,083 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-07 12:58:01,083 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2019-10-07 12:58:01,084 INFO L130 BoogieDeclarations]: Found specification of procedure tty_chars_in_buffer [2019-10-07 12:58:01,084 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2019-10-07 12:58:01,084 INFO L130 BoogieDeclarations]: Found specification of procedure tty_mode_ioctl [2019-10-07 12:58:01,084 INFO L130 BoogieDeclarations]: Found specification of procedure tty_devnum [2019-10-07 12:58:01,084 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_ldisc [2019-10-07 12:58:01,084 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_ldisc [2019-10-07 12:58:01,084 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2019-10-07 12:58:01,084 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-07 12:58:01,085 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2019-10-07 12:58:01,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 12:58:01,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 12:58:01,085 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2019-10-07 12:58:01,085 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2019-10-07 12:58:01,085 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2019-10-07 12:58:01,085 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-10-07 12:58:01,085 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2019-10-07 12:58:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdevice [2019-10-07 12:58:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdevice_4 [2019-10-07 12:58:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice_queue [2019-10-07 12:58:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice [2019-10-07 12:58:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2019-10-07 12:58:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2019-10-07 12:58:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2019-10-07 12:58:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2019-10-07 12:58:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2019-10-07 12:58:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2019-10-07 12:58:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2019-10-07 12:58:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2019-10-07 12:58:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 12:58:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2019-10-07 12:58:01,088 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_queue_stopped [2019-10-07 12:58:01,088 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2019-10-07 12:58:01,088 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2019-10-07 12:58:01,088 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2019-10-07 12:58:01,088 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2019-10-07 12:58:01,088 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2019-10-07 12:58:01,088 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2019-10-07 12:58:01,089 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2019-10-07 12:58:01,089 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2019-10-07 12:58:01,089 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_init [2019-10-07 12:58:01,089 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2019-10-07 12:58:01,089 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_compress [2019-10-07 12:58:01,089 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_uncompress [2019-10-07 12:58:01,089 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_remember [2019-10-07 12:58:01,089 INFO L130 BoogieDeclarations]: Found specification of procedure slip_esc [2019-10-07 12:58:01,090 INFO L130 BoogieDeclarations]: Found specification of procedure slip_unesc [2019-10-07 12:58:01,090 INFO L130 BoogieDeclarations]: Found specification of procedure slip_esc6 [2019-10-07 12:58:01,090 INFO L130 BoogieDeclarations]: Found specification of procedure slip_unesc6 [2019-10-07 12:58:01,090 INFO L130 BoogieDeclarations]: Found specification of procedure sl_keepalive [2019-10-07 12:58:01,090 INFO L130 BoogieDeclarations]: Found specification of procedure sl_outfill [2019-10-07 12:58:01,090 INFO L130 BoogieDeclarations]: Found specification of procedure sl_ioctl [2019-10-07 12:58:01,090 INFO L130 BoogieDeclarations]: Found specification of procedure sl_alloc_bufs [2019-10-07 12:58:01,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_sl_alloc_bufs_3 [2019-10-07 12:58:01,091 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_bufs [2019-10-07 12:58:01,091 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-07 12:58:01,091 INFO L130 BoogieDeclarations]: Found specification of procedure sl_realloc_bufs [2019-10-07 12:58:01,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-07 12:58:01,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 12:58:01,091 INFO L130 BoogieDeclarations]: Found specification of procedure sl_lock [2019-10-07 12:58:01,091 INFO L130 BoogieDeclarations]: Found specification of procedure sl_unlock [2019-10-07 12:58:01,092 INFO L130 BoogieDeclarations]: Found specification of procedure sl_bump [2019-10-07 12:58:01,092 INFO L130 BoogieDeclarations]: Found specification of procedure sl_encaps [2019-10-07 12:58:01,092 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-07 12:58:01,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 12:58:01,092 INFO L130 BoogieDeclarations]: Found specification of procedure slip_write_wakeup [2019-10-07 12:58:01,092 INFO L130 BoogieDeclarations]: Found specification of procedure sl_tx_timeout [2019-10-07 12:58:01,092 INFO L130 BoogieDeclarations]: Found specification of procedure sl_xmit [2019-10-07 12:58:01,093 INFO L130 BoogieDeclarations]: Found specification of procedure sl_close [2019-10-07 12:58:01,093 INFO L130 BoogieDeclarations]: Found specification of procedure sl_open [2019-10-07 12:58:01,093 INFO L130 BoogieDeclarations]: Found specification of procedure sl_change_mtu [2019-10-07 12:58:01,093 INFO L130 BoogieDeclarations]: Found specification of procedure sl_get_stats64 [2019-10-07 12:58:01,093 INFO L130 BoogieDeclarations]: Found specification of procedure sl_init [2019-10-07 12:58:01,093 INFO L130 BoogieDeclarations]: Found specification of procedure sl_uninit [2019-10-07 12:58:01,093 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_netdev [2019-10-07 12:58:01,094 INFO L130 BoogieDeclarations]: Found specification of procedure sl_setup [2019-10-07 12:58:01,094 INFO L130 BoogieDeclarations]: Found specification of procedure slip_receive_buf [2019-10-07 12:58:01,094 INFO L130 BoogieDeclarations]: Found specification of procedure sl_sync [2019-10-07 12:58:01,094 INFO L130 BoogieDeclarations]: Found specification of procedure sl_alloc [2019-10-07 12:58:01,094 INFO L130 BoogieDeclarations]: Found specification of procedure slip_open [2019-10-07 12:58:01,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_slip_open_18 [2019-10-07 12:58:01,094 INFO L130 BoogieDeclarations]: Found specification of procedure slip_close [2019-10-07 12:58:01,094 INFO L130 BoogieDeclarations]: Found specification of procedure slip_hangup [2019-10-07 12:58:01,095 INFO L130 BoogieDeclarations]: Found specification of procedure slip_ioctl [2019-10-07 12:58:01,095 INFO L130 BoogieDeclarations]: Found specification of procedure slip_compat_ioctl [2019-10-07 12:58:01,095 INFO L130 BoogieDeclarations]: Found specification of procedure slip_init [2019-10-07 12:58:01,095 INFO L130 BoogieDeclarations]: Found specification of procedure slip_exit [2019-10-07 12:58:01,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-07 12:58:01,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-07 12:58:01,095 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2019-10-07 12:58:01,095 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 12:58:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-07 12:58:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-07 12:58:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-07 12:58:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 12:58:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 12:58:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-07 12:58:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 12:58:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 12:58:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-07 12:58:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-07 12:58:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-07 12:58:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-07 12:58:02,174 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-07 12:58:12,975 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 12:58:12,975 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-07 12:58:12,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:58:12 BoogieIcfgContainer [2019-10-07 12:58:12,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 12:58:12,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 12:58:12,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 12:58:12,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 12:58:12,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 12:57:57" (1/3) ... [2019-10-07 12:58:12,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@338da7d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:58:12, skipping insertion in model container [2019-10-07 12:58:12,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:58:00" (2/3) ... [2019-10-07 12:58:12,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@338da7d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:58:12, skipping insertion in model container [2019-10-07 12:58:12,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:58:12" (3/3) ... [2019-10-07 12:58:12,984 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-07 12:58:12,992 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 12:58:13,001 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 12:58:13,010 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 12:58:13,096 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 12:58:13,096 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 12:58:13,096 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 12:58:13,096 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 12:58:13,096 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 12:58:13,096 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 12:58:13,097 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 12:58:13,097 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 12:58:13,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states. [2019-10-07 12:58:13,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-10-07 12:58:13,158 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:58:13,159 INFO L385 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:58:13,161 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:58:13,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:58:13,167 INFO L82 PathProgramCache]: Analyzing trace with hash 2060249647, now seen corresponding path program 1 times [2019-10-07 12:58:13,176 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:58:13,176 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:58:13,177 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:58:13,177 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:58:13,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:58:13,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:58:13,887 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2019-10-07 12:58:13,887 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:58:13,888 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:58:13,888 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 12:58:13,893 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 12:58:13,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 12:58:13,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 12:58:13,909 INFO L87 Difference]: Start difference. First operand 1150 states. Second operand 3 states. [2019-10-07 12:58:14,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:58:14,318 INFO L93 Difference]: Finished difference Result 2852 states and 3787 transitions. [2019-10-07 12:58:14,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 12:58:14,320 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 140 [2019-10-07 12:58:14,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:58:14,352 INFO L225 Difference]: With dead ends: 2852 [2019-10-07 12:58:14,352 INFO L226 Difference]: Without dead ends: 1654 [2019-10-07 12:58:14,366 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 12:58:14,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2019-10-07 12:58:14,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1654. [2019-10-07 12:58:14,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1654 states. [2019-10-07 12:58:14,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2178 transitions. [2019-10-07 12:58:14,579 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2178 transitions. Word has length 140 [2019-10-07 12:58:14,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:58:14,582 INFO L462 AbstractCegarLoop]: Abstraction has 1654 states and 2178 transitions. [2019-10-07 12:58:14,582 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 12:58:14,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2178 transitions. [2019-10-07 12:58:14,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-07 12:58:14,601 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:58:14,602 INFO L385 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2019-10-07 12:58:14,604 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:58:14,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:58:14,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1710487695, now seen corresponding path program 1 times [2019-10-07 12:58:14,604 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:58:14,605 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:58:14,605 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:58:14,605 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:58:14,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:58:14,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:58:15,024 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2019-10-07 12:58:15,025 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:58:15,025 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:58:15,025 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 12:58:15,027 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 12:58:15,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 12:58:15,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 12:58:15,028 INFO L87 Difference]: Start difference. First operand 1654 states and 2178 transitions. Second operand 10 states. [2019-10-07 12:58:15,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:58:15,224 INFO L93 Difference]: Finished difference Result 3273 states and 4310 transitions. [2019-10-07 12:58:15,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 12:58:15,225 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 195 [2019-10-07 12:58:15,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:58:15,237 INFO L225 Difference]: With dead ends: 3273 [2019-10-07 12:58:15,238 INFO L226 Difference]: Without dead ends: 1656 [2019-10-07 12:58:15,314 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 12:58:15,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2019-10-07 12:58:15,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1654. [2019-10-07 12:58:15,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1654 states. [2019-10-07 12:58:15,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2176 transitions. [2019-10-07 12:58:15,426 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2176 transitions. Word has length 195 [2019-10-07 12:58:15,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:58:15,428 INFO L462 AbstractCegarLoop]: Abstraction has 1654 states and 2176 transitions. [2019-10-07 12:58:15,428 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 12:58:15,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2176 transitions. [2019-10-07 12:58:15,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-07 12:58:15,435 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:58:15,435 INFO L385 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2019-10-07 12:58:15,436 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:58:15,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:58:15,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1492523137, now seen corresponding path program 1 times [2019-10-07 12:58:15,436 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:58:15,436 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:58:15,437 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:58:15,437 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:58:15,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:58:15,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:58:15,801 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2019-10-07 12:58:15,801 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:58:15,801 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:58:15,802 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 12:58:15,802 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 12:58:15,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 12:58:15,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 12:58:15,803 INFO L87 Difference]: Start difference. First operand 1654 states and 2176 transitions. Second operand 7 states. [2019-10-07 12:58:15,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:58:15,909 INFO L93 Difference]: Finished difference Result 1667 states and 2189 transitions. [2019-10-07 12:58:15,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 12:58:15,910 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 201 [2019-10-07 12:58:15,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:58:15,920 INFO L225 Difference]: With dead ends: 1667 [2019-10-07 12:58:15,921 INFO L226 Difference]: Without dead ends: 1664 [2019-10-07 12:58:15,922 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-07 12:58:15,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2019-10-07 12:58:15,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1662. [2019-10-07 12:58:15,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1662 states. [2019-10-07 12:58:15,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1662 states to 1662 states and 2184 transitions. [2019-10-07 12:58:15,994 INFO L78 Accepts]: Start accepts. Automaton has 1662 states and 2184 transitions. Word has length 201 [2019-10-07 12:58:15,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:58:15,996 INFO L462 AbstractCegarLoop]: Abstraction has 1662 states and 2184 transitions. [2019-10-07 12:58:15,996 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 12:58:15,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1662 states and 2184 transitions. [2019-10-07 12:58:16,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-10-07 12:58:16,006 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:58:16,006 INFO L385 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2019-10-07 12:58:16,007 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:58:16,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:58:16,007 INFO L82 PathProgramCache]: Analyzing trace with hash 561078519, now seen corresponding path program 1 times [2019-10-07 12:58:16,007 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:58:16,007 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:58:16,008 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:58:16,008 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:58:16,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:58:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:58:16,296 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2019-10-07 12:58:16,297 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:58:16,297 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:58:16,297 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 12:58:16,298 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 12:58:16,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 12:58:16,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 12:58:16,299 INFO L87 Difference]: Start difference. First operand 1662 states and 2184 transitions. Second operand 8 states. [2019-10-07 12:58:16,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:58:16,462 INFO L93 Difference]: Finished difference Result 1695 states and 2223 transitions. [2019-10-07 12:58:16,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 12:58:16,463 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 216 [2019-10-07 12:58:16,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:58:16,474 INFO L225 Difference]: With dead ends: 1695 [2019-10-07 12:58:16,474 INFO L226 Difference]: Without dead ends: 1692 [2019-10-07 12:58:16,475 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-07 12:58:16,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states. [2019-10-07 12:58:16,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 1664. [2019-10-07 12:58:16,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1664 states. [2019-10-07 12:58:16,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1664 states to 1664 states and 2187 transitions. [2019-10-07 12:58:16,548 INFO L78 Accepts]: Start accepts. Automaton has 1664 states and 2187 transitions. Word has length 216 [2019-10-07 12:58:16,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:58:16,549 INFO L462 AbstractCegarLoop]: Abstraction has 1664 states and 2187 transitions. [2019-10-07 12:58:16,549 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 12:58:16,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1664 states and 2187 transitions. [2019-10-07 12:58:16,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2019-10-07 12:58:16,624 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:58:16,624 INFO L385 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2019-10-07 12:58:16,625 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:58:16,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:58:16,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1907033541, now seen corresponding path program 1 times [2019-10-07 12:58:16,625 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:58:16,625 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:58:16,626 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:58:16,626 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:58:16,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:58:16,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:58:16,917 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2019-10-07 12:58:16,917 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:58:16,917 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:58:16,917 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 12:58:16,918 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 12:58:16,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 12:58:16,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 12:58:16,919 INFO L87 Difference]: Start difference. First operand 1664 states and 2187 transitions. Second operand 4 states. [2019-10-07 12:58:19,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:58:19,444 INFO L93 Difference]: Finished difference Result 3829 states and 5033 transitions. [2019-10-07 12:58:19,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 12:58:19,445 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 244 [2019-10-07 12:58:19,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:58:19,459 INFO L225 Difference]: With dead ends: 3829 [2019-10-07 12:58:19,459 INFO L226 Difference]: Without dead ends: 2210 [2019-10-07 12:58:19,465 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 12:58:19,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2210 states. [2019-10-07 12:58:19,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2210 to 2209. [2019-10-07 12:58:19,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2209 states. [2019-10-07 12:58:19,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 2896 transitions. [2019-10-07 12:58:19,574 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 2896 transitions. Word has length 244 [2019-10-07 12:58:19,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:58:19,575 INFO L462 AbstractCegarLoop]: Abstraction has 2209 states and 2896 transitions. [2019-10-07 12:58:19,575 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 12:58:19,575 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 2896 transitions. [2019-10-07 12:58:19,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-10-07 12:58:19,587 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:58:19,588 INFO L385 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2019-10-07 12:58:19,588 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:58:19,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:58:19,588 INFO L82 PathProgramCache]: Analyzing trace with hash -631311840, now seen corresponding path program 1 times [2019-10-07 12:58:19,589 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:58:19,589 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:58:19,589 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:58:19,589 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:58:19,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:58:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:58:19,901 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2019-10-07 12:58:19,901 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:58:19,901 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:58:19,902 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 12:58:19,902 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 12:58:19,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 12:58:19,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 12:58:19,903 INFO L87 Difference]: Start difference. First operand 2209 states and 2896 transitions. Second operand 5 states. [2019-10-07 12:58:20,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:58:20,049 INFO L93 Difference]: Finished difference Result 3836 states and 5038 transitions. [2019-10-07 12:58:20,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 12:58:20,049 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 246 [2019-10-07 12:58:20,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:58:20,066 INFO L225 Difference]: With dead ends: 3836 [2019-10-07 12:58:20,066 INFO L226 Difference]: Without dead ends: 2217 [2019-10-07 12:58:20,073 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 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 12:58:20,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2217 states. [2019-10-07 12:58:20,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2217 to 2213. [2019-10-07 12:58:20,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2213 states. [2019-10-07 12:58:20,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2213 states to 2213 states and 2900 transitions. [2019-10-07 12:58:20,197 INFO L78 Accepts]: Start accepts. Automaton has 2213 states and 2900 transitions. Word has length 246 [2019-10-07 12:58:20,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:58:20,197 INFO L462 AbstractCegarLoop]: Abstraction has 2213 states and 2900 transitions. [2019-10-07 12:58:20,198 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 12:58:20,198 INFO L276 IsEmpty]: Start isEmpty. Operand 2213 states and 2900 transitions. [2019-10-07 12:58:20,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2019-10-07 12:58:20,213 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:58:20,213 INFO L385 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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 12:58:20,214 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:58:20,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:58:20,214 INFO L82 PathProgramCache]: Analyzing trace with hash -730919617, now seen corresponding path program 1 times [2019-10-07 12:58:20,214 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:58:20,215 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:58:20,215 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:58:20,215 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:58:20,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:58:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:58:20,563 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2019-10-07 12:58:20,563 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:58:20,565 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:58:20,565 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 12:58:20,567 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 12:58:20,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 12:58:20,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 12:58:20,571 INFO L87 Difference]: Start difference. First operand 2213 states and 2900 transitions. Second operand 3 states. [2019-10-07 12:58:20,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:58:20,728 INFO L93 Difference]: Finished difference Result 3839 states and 5043 transitions. [2019-10-07 12:58:20,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 12:58:20,730 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 268 [2019-10-07 12:58:20,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:58:20,743 INFO L225 Difference]: With dead ends: 3839 [2019-10-07 12:58:20,743 INFO L226 Difference]: Without dead ends: 2216 [2019-10-07 12:58:20,750 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 12:58:20,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2216 states. [2019-10-07 12:58:20,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2216 to 2214. [2019-10-07 12:58:20,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2214 states. [2019-10-07 12:58:20,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2214 states to 2214 states and 2901 transitions. [2019-10-07 12:58:20,861 INFO L78 Accepts]: Start accepts. Automaton has 2214 states and 2901 transitions. Word has length 268 [2019-10-07 12:58:20,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:58:20,862 INFO L462 AbstractCegarLoop]: Abstraction has 2214 states and 2901 transitions. [2019-10-07 12:58:20,862 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 12:58:20,863 INFO L276 IsEmpty]: Start isEmpty. Operand 2214 states and 2901 transitions. [2019-10-07 12:58:20,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2019-10-07 12:58:20,875 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:58:20,875 INFO L385 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1] [2019-10-07 12:58:20,876 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:58:20,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:58:20,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1518582705, now seen corresponding path program 1 times [2019-10-07 12:58:20,876 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:58:20,876 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:58:20,877 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:58:20,877 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:58:20,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:58:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:58:21,108 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2019-10-07 12:58:21,108 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:58:21,108 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:58:21,109 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 12:58:21,110 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 12:58:21,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 12:58:21,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 12:58:21,111 INFO L87 Difference]: Start difference. First operand 2214 states and 2901 transitions. Second operand 3 states. [2019-10-07 12:58:21,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:58:21,225 INFO L93 Difference]: Finished difference Result 3829 states and 5030 transitions. [2019-10-07 12:58:21,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 12:58:21,227 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 269 [2019-10-07 12:58:21,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:58:21,244 INFO L225 Difference]: With dead ends: 3829 [2019-10-07 12:58:21,244 INFO L226 Difference]: Without dead ends: 2205 [2019-10-07 12:58:21,253 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 12:58:21,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2205 states. [2019-10-07 12:58:21,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2205 to 2201. [2019-10-07 12:58:21,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2201 states. [2019-10-07 12:58:21,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2201 states to 2201 states and 2883 transitions. [2019-10-07 12:58:21,394 INFO L78 Accepts]: Start accepts. Automaton has 2201 states and 2883 transitions. Word has length 269 [2019-10-07 12:58:21,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:58:21,395 INFO L462 AbstractCegarLoop]: Abstraction has 2201 states and 2883 transitions. [2019-10-07 12:58:21,395 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 12:58:21,395 INFO L276 IsEmpty]: Start isEmpty. Operand 2201 states and 2883 transitions. [2019-10-07 12:58:21,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2019-10-07 12:58:21,409 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:58:21,409 INFO L385 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:58:21,409 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:58:21,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:58:21,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1633386451, now seen corresponding path program 1 times [2019-10-07 12:58:21,410 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:58:21,410 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:58:21,410 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:58:21,410 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:58:21,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:58:21,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:58:21,962 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2019-10-07 12:58:21,963 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:58:21,963 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:58:21,963 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 12:58:21,964 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 12:58:21,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 12:58:21,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-07 12:58:21,964 INFO L87 Difference]: Start difference. First operand 2201 states and 2883 transitions. Second operand 7 states. [2019-10-07 12:58:27,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:58:27,203 INFO L93 Difference]: Finished difference Result 3823 states and 5021 transitions. [2019-10-07 12:58:27,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 12:58:27,204 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 278 [2019-10-07 12:58:27,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:58:27,217 INFO L225 Difference]: With dead ends: 3823 [2019-10-07 12:58:27,217 INFO L226 Difference]: Without dead ends: 2212 [2019-10-07 12:58:27,224 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-07 12:58:27,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2212 states. [2019-10-07 12:58:27,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2212 to 2202. [2019-10-07 12:58:27,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2202 states. [2019-10-07 12:58:27,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 2884 transitions. [2019-10-07 12:58:27,321 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 2884 transitions. Word has length 278 [2019-10-07 12:58:27,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:58:27,322 INFO L462 AbstractCegarLoop]: Abstraction has 2202 states and 2884 transitions. [2019-10-07 12:58:27,322 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 12:58:27,322 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 2884 transitions. [2019-10-07 12:58:27,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2019-10-07 12:58:27,334 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:58:27,334 INFO L385 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:58:27,334 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:58:27,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:58:27,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1539494461, now seen corresponding path program 1 times [2019-10-07 12:58:27,335 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:58:27,335 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:58:27,335 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:58:27,336 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:58:27,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:58:27,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:58:27,914 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2019-10-07 12:58:27,914 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:58:27,914 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 12:58:27,914 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 12:58:29,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:58:29,637 INFO L256 TraceCheckSpWp]: Trace formula consists of 2499 conjuncts, 15 conjunts are in the unsatisfiable core [2019-10-07 12:58:29,659 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 12:58:29,723 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 12:58:29,823 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2019-10-07 12:58:29,824 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 12:58:30,133 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 12:58:30,196 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 12:58:30,338 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2019-10-07 12:58:30,338 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 12:58:30,339 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 11 [2019-10-07 12:58:30,339 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 12:58:30,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 12:58:30,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2019-10-07 12:58:30,340 INFO L87 Difference]: Start difference. First operand 2202 states and 2884 transitions. Second operand 6 states. [2019-10-07 12:58:30,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:58:30,564 INFO L93 Difference]: Finished difference Result 4383 states and 5749 transitions. [2019-10-07 12:58:30,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 12:58:30,565 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 279 [2019-10-07 12:58:30,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:58:30,576 INFO L225 Difference]: With dead ends: 4383 [2019-10-07 12:58:30,576 INFO L226 Difference]: Without dead ends: 2203 [2019-10-07 12:58:30,584 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 551 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2019-10-07 12:58:30,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2203 states. [2019-10-07 12:58:30,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2203 to 2203. [2019-10-07 12:58:30,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2203 states. [2019-10-07 12:58:30,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2203 states to 2203 states and 2885 transitions. [2019-10-07 12:58:30,701 INFO L78 Accepts]: Start accepts. Automaton has 2203 states and 2885 transitions. Word has length 279 [2019-10-07 12:58:30,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:58:30,701 INFO L462 AbstractCegarLoop]: Abstraction has 2203 states and 2885 transitions. [2019-10-07 12:58:30,702 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 12:58:30,702 INFO L276 IsEmpty]: Start isEmpty. Operand 2203 states and 2885 transitions. [2019-10-07 12:58:30,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2019-10-07 12:58:30,715 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:58:30,717 INFO L385 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:58:30,939 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 12:58:30,939 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:58:30,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:58:30,940 INFO L82 PathProgramCache]: Analyzing trace with hash 567502791, now seen corresponding path program 1 times [2019-10-07 12:58:30,940 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:58:30,940 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:58:30,940 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:58:30,940 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:58:30,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:58:31,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:58:31,777 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2019-10-07 12:58:31,778 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:58:31,778 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 12:58:31,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 12:58:34,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:58:34,304 INFO L256 TraceCheckSpWp]: Trace formula consists of 2541 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-07 12:58:34,314 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 12:58:34,444 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 120 proven. 1 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2019-10-07 12:58:34,444 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 12:58:34,762 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 12:58:34,809 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 12:58:34,810 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 12:58:34,811 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 12:58:35,025 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-07 12:58:35,272 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2019-10-07 12:58:35,273 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 12:58:35,308 INFO L162 IcfgInterpreter]: Started Sifa with 194 locations of interest [2019-10-07 12:58:35,308 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 12:58:35,314 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 12:58:35,320 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 12:58:35,321 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 12:58:42,243 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 723 [2019-10-07 12:58:43,952 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 703 [2019-10-07 12:58:44,170 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 703 [2019-10-07 12:58:44,407 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 703 [2019-10-07 12:58:44,957 WARN L191 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 805 [2019-10-07 12:58:45,325 WARN L191 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 805 [2019-10-07 12:58:45,548 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 805 [2019-10-07 12:58:45,774 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 805 [2019-10-07 12:58:46,299 WARN L191 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 807 DAG size of output: 805 [2019-10-07 12:58:46,496 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 805 [2019-10-07 12:58:46,743 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 805 [2019-10-07 12:58:47,013 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 805 [2019-10-07 12:58:47,213 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 805 [2019-10-07 12:58:47,508 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 805 [2019-10-07 12:58:47,526 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 235 for LOIs [2019-10-07 12:58:47,739 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 707 [2019-10-07 12:58:47,877 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 707 [2019-10-07 12:58:48,091 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 809 [2019-10-07 12:58:48,093 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 829 for LOIs [2019-10-07 12:58:48,299 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 829 [2019-10-07 12:58:48,501 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 829 [2019-10-07 12:58:48,878 WARN L191 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 903 [2019-10-07 12:58:49,237 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 899 [2019-10-07 12:58:49,463 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 899 [2019-10-07 12:58:49,858 WARN L191 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 987 [2019-10-07 13:00:34,959 WARN L191 SmtUtils]: Spent 6.75 s on a formula simplification that was a NOOP. DAG size: 1223 [2019-10-07 13:00:36,096 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1763 [2019-10-07 13:00:39,370 WARN L191 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 113 [2019-10-07 13:00:40,319 WARN L191 SmtUtils]: Spent 942.00 ms on a formula simplification that was a NOOP. DAG size: 1796 [2019-10-07 13:00:40,627 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:00:40,628 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 13:00:40,635 INFO L168 Benchmark]: Toolchain (without parser) took 162963.39 ms. Allocated memory was 138.4 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 93.2 MB in the beginning and 464.2 MB in the end (delta: -371.1 MB). Peak memory consumption was 761.4 MB. Max. memory is 7.1 GB. [2019-10-07 13:00:40,638 INFO L168 Benchmark]: CDTParser took 1.28 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-10-07 13:00:40,638 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2953.73 ms. Allocated memory was 138.4 MB in the beginning and 252.2 MB in the end (delta: 113.8 MB). Free memory was 92.7 MB in the beginning and 163.6 MB in the end (delta: -70.9 MB). Peak memory consumption was 121.2 MB. Max. memory is 7.1 GB. [2019-10-07 13:00:40,639 INFO L168 Benchmark]: Boogie Preprocessor took 316.68 ms. Allocated memory is still 252.2 MB. Free memory was 163.6 MB in the beginning and 144.1 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. [2019-10-07 13:00:40,648 INFO L168 Benchmark]: RCFGBuilder took 12028.73 ms. Allocated memory was 252.2 MB in the beginning and 388.0 MB in the end (delta: 135.8 MB). Free memory was 144.1 MB in the beginning and 64.6 MB in the end (delta: 79.5 MB). Peak memory consumption was 233.4 MB. Max. memory is 7.1 GB. [2019-10-07 13:00:40,649 INFO L168 Benchmark]: TraceAbstraction took 147655.34 ms. Allocated memory was 388.0 MB in the beginning and 1.3 GB in the end (delta: 882.9 MB). Free memory was 64.6 MB in the beginning and 464.2 MB in the end (delta: -399.6 MB). Peak memory consumption was 483.3 MB. Max. memory is 7.1 GB. [2019-10-07 13:00:40,660 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.28 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2953.73 ms. Allocated memory was 138.4 MB in the beginning and 252.2 MB in the end (delta: 113.8 MB). Free memory was 92.7 MB in the beginning and 163.6 MB in the end (delta: -70.9 MB). Peak memory consumption was 121.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 316.68 ms. Allocated memory is still 252.2 MB. Free memory was 163.6 MB in the beginning and 144.1 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12028.73 ms. Allocated memory was 252.2 MB in the beginning and 388.0 MB in the end (delta: 135.8 MB). Free memory was 144.1 MB in the beginning and 64.6 MB in the end (delta: 79.5 MB). Peak memory consumption was 233.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 147655.34 ms. Allocated memory was 388.0 MB in the beginning and 1.3 GB in the end (delta: 882.9 MB). Free memory was 64.6 MB in the beginning and 464.2 MB in the end (delta: -399.6 MB). Peak memory consumption was 483.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...