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 -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--can--can-dev.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 16:17:56,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 16:17:56,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 16:17:56,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 16:17:56,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 16:17:56,876 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 16:17:56,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 16:17:56,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 16:17:56,880 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 16:17:56,881 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 16:17:56,882 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 16:17:56,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 16:17:56,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 16:17:56,884 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 16:17:56,885 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 16:17:56,886 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 16:17:56,887 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 16:17:56,888 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 16:17:56,890 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 16:17:56,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 16:17:56,893 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 16:17:56,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 16:17:56,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 16:17:56,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 16:17:56,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-08 16:17:56,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-08 16:17:56,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-08 16:17:56,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-08 16:17:56,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-08 16:17:56,900 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-08 16:17:56,901 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 16:17:56,901 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 16:17:56,902 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 16:17:56,903 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 16:17:56,904 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 16:17:56,904 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 16:17:56,905 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 16:17:56,905 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 16:17:56,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 16:17:56,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 16:17:56,907 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 16:17:56,907 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 [2019-09-08 16:17:56,922 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 16:17:56,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 16:17:56,923 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 16:17:56,923 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 16:17:56,923 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 16:17:56,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 16:17:56,924 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 16:17:56,924 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 16:17:56,924 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 16:17:56,924 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 16:17:56,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 16:17:56,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 16:17:56,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 16:17:56,925 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 16:17:56,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 16:17:56,926 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 16:17:56,926 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 16:17:56,926 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 16:17:56,926 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 16:17:56,926 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 16:17:56,927 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 16:17:56,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 16:17:56,927 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 16:17:56,927 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 16:17:56,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 16:17:56,928 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 16:17:56,928 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 16:17:56,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 16:17:56,928 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 16:17:56,957 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 16:17:56,968 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 16:17:56,972 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 16:17:56,973 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 16:17:56,974 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 16:17:56,974 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--can--can-dev.ko-entry_point.cil.out.i [2019-09-08 16:17:57,035 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42cdf7895/12b94508dbe94b8fa3c25efecba65d82/FLAG80bc25557 [2019-09-08 16:17:57,882 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 16:17:57,883 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--can--can-dev.ko-entry_point.cil.out.i [2019-09-08 16:17:57,924 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42cdf7895/12b94508dbe94b8fa3c25efecba65d82/FLAG80bc25557 [2019-09-08 16:17:58,390 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42cdf7895/12b94508dbe94b8fa3c25efecba65d82 [2019-09-08 16:17:58,400 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 16:17:58,401 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 16:17:58,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 16:17:58,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 16:17:58,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 16:17:58,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 04:17:58" (1/1) ... [2019-09-08 16:17:58,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51b1830c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:17:58, skipping insertion in model container [2019-09-08 16:17:58,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 04:17:58" (1/1) ... [2019-09-08 16:17:58,416 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 16:17:58,538 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 16:18:00,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 16:18:00,844 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 16:18:01,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 16:18:01,577 INFO L192 MainTranslator]: Completed translation [2019-09-08 16:18:01,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:18:01 WrapperNode [2019-09-08 16:18:01,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 16:18:01,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 16:18:01,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 16:18:01,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 16:18:01,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:18:01" (1/1) ... [2019-09-08 16:18:01,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:18:01" (1/1) ... [2019-09-08 16:18:01,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:18:01" (1/1) ... [2019-09-08 16:18:01,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:18:01" (1/1) ... [2019-09-08 16:18:01,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:18:01" (1/1) ... [2019-09-08 16:18:01,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:18:01" (1/1) ... [2019-09-08 16:18:01,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:18:01" (1/1) ... [2019-09-08 16:18:01,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 16:18:01,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 16:18:01,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 16:18:01,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 16:18:01,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:18:01" (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 [2019-09-08 16:18:02,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 16:18:02,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 16:18:02,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2019-09-08 16:18:02,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-09-08 16:18:02,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-08 16:18:02,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2019-09-08 16:18:02,011 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-09-08 16:18:02,012 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-09-08 16:18:02,013 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-09-08 16:18:02,014 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2019-09-08 16:18:02,014 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_shared [2019-09-08 16:18:02,014 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2019-09-08 16:18:02,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-08 16:18:02,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-09-08 16:18:02,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-09-08 16:18:02,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-08 16:18:02,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-09-08 16:18:02,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-08 16:18:02,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-08 16:18:02,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-08 16:18:02,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-09-08 16:18:02,019 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-09-08 16:18:02,020 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2019-09-08 16:18:02,020 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_attr_size [2019-09-08 16:18:02,020 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_total_size [2019-09-08 16:18:02,020 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_data [2019-09-08 16:18:02,020 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_put_u32 [2019-09-08 16:18:02,020 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_get_u32 [2019-09-08 16:18:02,020 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_hold [2019-09-08 16:18:02,021 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_put [2019-09-08 16:18:02,021 INFO L138 BoogieDeclarations]: Found implementation of procedure can_skb_prv [2019-09-08 16:18:02,021 INFO L138 BoogieDeclarations]: Found implementation of procedure can_skb_reserve [2019-09-08 16:18:02,021 INFO L138 BoogieDeclarations]: Found implementation of procedure can_skb_destructor [2019-09-08 16:18:02,022 INFO L138 BoogieDeclarations]: Found implementation of procedure can_skb_set_owner [2019-09-08 16:18:02,022 INFO L138 BoogieDeclarations]: Found implementation of procedure can_create_echo_skb [2019-09-08 16:18:02,022 INFO L138 BoogieDeclarations]: Found implementation of procedure can_dlc2len [2019-09-08 16:18:02,022 INFO L138 BoogieDeclarations]: Found implementation of procedure can_len2dlc [2019-09-08 16:18:02,022 INFO L138 BoogieDeclarations]: Found implementation of procedure can_update_spt [2019-09-08 16:18:02,022 INFO L138 BoogieDeclarations]: Found implementation of procedure can_calc_bittiming [2019-09-08 16:18:02,022 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fixup_bittiming [2019-09-08 16:18:02,023 INFO L138 BoogieDeclarations]: Found implementation of procedure can_get_bittiming [2019-09-08 16:18:02,023 INFO L138 BoogieDeclarations]: Found implementation of procedure can_flush_echo_skb [2019-09-08 16:18:02,023 INFO L138 BoogieDeclarations]: Found implementation of procedure can_put_echo_skb [2019-09-08 16:18:02,023 INFO L138 BoogieDeclarations]: Found implementation of procedure can_get_echo_skb [2019-09-08 16:18:02,023 INFO L138 BoogieDeclarations]: Found implementation of procedure can_free_echo_skb [2019-09-08 16:18:02,023 INFO L138 BoogieDeclarations]: Found implementation of procedure can_restart [2019-09-08 16:18:02,024 INFO L138 BoogieDeclarations]: Found implementation of procedure can_restart_now [2019-09-08 16:18:02,024 INFO L138 BoogieDeclarations]: Found implementation of procedure can_bus_off [2019-09-08 16:18:02,024 INFO L138 BoogieDeclarations]: Found implementation of procedure can_setup [2019-09-08 16:18:02,024 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_can_skb [2019-09-08 16:18:02,024 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_canfd_skb [2019-09-08 16:18:02,024 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_can_err_skb [2019-09-08 16:18:02,025 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_candev [2019-09-08 16:18:02,025 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2019-09-08 16:18:02,025 INFO L138 BoogieDeclarations]: Found implementation of procedure can_change_mtu [2019-09-08 16:18:02,025 INFO L138 BoogieDeclarations]: Found implementation of procedure open_candev [2019-09-08 16:18:02,026 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2019-09-08 16:18:02,026 INFO L138 BoogieDeclarations]: Found implementation of procedure can_changelink [2019-09-08 16:18:02,026 INFO L138 BoogieDeclarations]: Found implementation of procedure can_get_size [2019-09-08 16:18:02,026 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fill_info [2019-09-08 16:18:02,026 INFO L138 BoogieDeclarations]: Found implementation of procedure can_get_xstats_size [2019-09-08 16:18:02,027 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fill_xstats [2019-09-08 16:18:02,027 INFO L138 BoogieDeclarations]: Found implementation of procedure can_newlink [2019-09-08 16:18:02,027 INFO L138 BoogieDeclarations]: Found implementation of procedure register_candev [2019-09-08 16:18:02,027 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_candev [2019-09-08 16:18:02,027 INFO L138 BoogieDeclarations]: Found implementation of procedure safe_candev_priv [2019-09-08 16:18:02,028 INFO L138 BoogieDeclarations]: Found implementation of procedure can_dev_init [2019-09-08 16:18:02,028 INFO L138 BoogieDeclarations]: Found implementation of procedure can_dev_exit [2019-09-08 16:18:02,028 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_init_1 [2019-09-08 16:18:02,028 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2019-09-08 16:18:02,028 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_2 [2019-09-08 16:18:02,029 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2019-09-08 16:18:02,029 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2019-09-08 16:18:02,029 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2019-09-08 16:18:02,030 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2019-09-08 16:18:02,030 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2019-09-08 16:18:02,030 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2019-09-08 16:18:02,030 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_1 [2019-09-08 16:18:02,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2019-09-08 16:18:02,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_rtnl_link_ops_4 [2019-09-08 16:18:02,031 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 16:18:02,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2019-09-08 16:18:02,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2019-09-08 16:18:02,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2019-09-08 16:18:02,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2019-09-08 16:18:02,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2019-09-08 16:18:02,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_12 [2019-09-08 16:18:02,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_14 [2019-09-08 16:18:02,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_15 [2019-09-08 16:18:02,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_16 [2019-09-08 16:18:02,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_17 [2019-09-08 16:18:02,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_18 [2019-09-08 16:18:02,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_19 [2019-09-08 16:18:02,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_20 [2019-09-08 16:18:02,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_21 [2019-09-08 16:18:02,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_22 [2019-09-08 16:18:02,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_23 [2019-09-08 16:18:02,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_24 [2019-09-08 16:18:02,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb_25 [2019-09-08 16:18:02,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_27 [2019-09-08 16:18:02,036 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_notifier_info_to_dev [2019-09-08 16:18:02,036 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2019-09-08 16:18:02,036 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_release [2019-09-08 16:18:02,036 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_can_led_init [2019-09-08 16:18:02,036 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_notifier [2019-09-08 16:18:02,036 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_notifier_init [2019-09-08 16:18:02,036 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_notifier_exit [2019-09-08 16:18:02,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_main_exported_3 [2019-09-08 16:18:02,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_35 [2019-09-08 16:18:02,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_36 [2019-09-08 16:18:02,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_37 [2019-09-08 16:18:02,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_38 [2019-09-08 16:18:02,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_41 [2019-09-08 16:18:02,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_42 [2019-09-08 16:18:02,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2019-09-08 16:18:02,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-09-08 16:18:02,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2019-09-08 16:18:02,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2019-09-08 16:18:02,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2019-09-08 16:18:02,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-09-08 16:18:02,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-09-08 16:18:02,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-09-08 16:18:02,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-09-08 16:18:02,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2019-09-08 16:18:02,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-08 16:18:02,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2019-09-08 16:18:02,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2019-09-08 16:18:02,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2019-09-08 16:18:02,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2019-09-08 16:18:02,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2019-09-08 16:18:02,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-08 16:18:02,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __devres_alloc [2019-09-08 16:18:02,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2019-09-08 16:18:02,042 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2019-09-08 16:18:02,042 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2019-09-08 16:18:02,042 INFO L138 BoogieDeclarations]: Found implementation of procedure devres_add [2019-09-08 16:18:02,043 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2019-09-08 16:18:02,043 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2019-09-08 16:18:02,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_4 [2019-09-08 16:18:02,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2019-09-08 16:18:02,047 INFO L138 BoogieDeclarations]: Found implementation of procedure led_trigger_blink_oneshot [2019-09-08 16:18:02,048 INFO L138 BoogieDeclarations]: Found implementation of procedure led_trigger_event [2019-09-08 16:18:02,048 INFO L138 BoogieDeclarations]: Found implementation of procedure led_trigger_register_simple [2019-09-08 16:18:02,049 INFO L138 BoogieDeclarations]: Found implementation of procedure led_trigger_rename_static [2019-09-08 16:18:02,056 INFO L138 BoogieDeclarations]: Found implementation of procedure led_trigger_unregister_simple [2019-09-08 16:18:02,056 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2019-09-08 16:18:02,056 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2019-09-08 16:18:02,056 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2019-09-08 16:18:02,056 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2019-09-08 16:18:02,057 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2019-09-08 16:18:02,057 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_put [2019-09-08 16:18:02,057 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-09-08 16:18:02,057 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2019-09-08 16:18:02,057 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdevice_notifier [2019-09-08 16:18:02,058 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_is_locked [2019-09-08 16:18:02,058 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_link_register [2019-09-08 16:18:02,058 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_link_unregister [2019-09-08 16:18:02,058 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_free [2019-09-08 16:18:02,059 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2019-09-08 16:18:02,059 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-09-08 16:18:02,059 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2019-09-08 16:18:02,059 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice_notifier [2019-09-08 16:18:02,059 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-08 16:18:02,059 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-08 16:18:02,059 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-08 16:18:02,060 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-09-08 16:18:02,060 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-09-08 16:18:02,060 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 16:18:02,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-08 16:18:02,060 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-09-08 16:18:02,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 16:18:02,060 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-09-08 16:18:02,061 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2019-09-08 16:18:02,061 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2019-09-08 16:18:02,061 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-09-08 16:18:02,061 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-08 16:18:02,061 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-09-08 16:18:02,061 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-09-08 16:18:02,061 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2019-09-08 16:18:02,061 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2019-09-08 16:18:02,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_23 [2019-09-08 16:18:02,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_24 [2019-09-08 16:18:02,062 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2019-09-08 16:18:02,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_27 [2019-09-08 16:18:02,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2019-09-08 16:18:02,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2019-09-08 16:18:02,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2019-09-08 16:18:02,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2019-09-08 16:18:02,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_12 [2019-09-08 16:18:02,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_14 [2019-09-08 16:18:02,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_16 [2019-09-08 16:18:02,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_17 [2019-09-08 16:18:02,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_18 [2019-09-08 16:18:02,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_19 [2019-09-08 16:18:02,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_21 [2019-09-08 16:18:02,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2019-09-08 16:18:02,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_15 [2019-09-08 16:18:02,064 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2019-09-08 16:18:02,064 INFO L130 BoogieDeclarations]: Found specification of procedure skb_shared [2019-09-08 16:18:02,064 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-09-08 16:18:02,065 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2019-09-08 16:18:02,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-08 16:18:02,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-08 16:18:02,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 16:18:02,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb_25 [2019-09-08 16:18:02,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2019-09-08 16:18:02,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2019-09-08 16:18:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2019-09-08 16:18:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-08 16:18:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-08 16:18:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-08 16:18:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-08 16:18:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-08 16:18:02,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-08 16:18:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-08 16:18:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-08 16:18:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-09-08 16:18:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-09-08 16:18:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-09-08 16:18:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-08 16:18:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-09-08 16:18:02,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-08 16:18:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-08 16:18:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-09-08 16:18:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure timer_init_1 [2019-09-08 16:18:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2019-09-08 16:18:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_2 [2019-09-08 16:18:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2019-09-08 16:18:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2019-09-08 16:18:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2019-09-08 16:18:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2019-09-08 16:18:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2019-09-08 16:18:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2019-09-08 16:18:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_1 [2019-09-08 16:18:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2019-09-08 16:18:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_rtnl_link_ops_4 [2019-09-08 16:18:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-09-08 16:18:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2019-09-08 16:18:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_20 [2019-09-08 16:18:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_22 [2019-09-08 16:18:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2019-09-08 16:18:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2019-09-08 16:18:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2019-09-08 16:18:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2019-09-08 16:18:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2019-09-08 16:18:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2019-09-08 16:18:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2019-09-08 16:18:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2019-09-08 16:18:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_notifier_init [2019-09-08 16:18:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_notifier_exit [2019-09-08 16:18:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure can_dlc2len [2019-09-08 16:18:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure can_len2dlc [2019-09-08 16:18:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_candev [2019-09-08 16:18:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2019-09-08 16:18:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure safe_candev_priv [2019-09-08 16:18:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure open_candev [2019-09-08 16:18:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2019-09-08 16:18:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure can_change_mtu [2019-09-08 16:18:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure register_candev [2019-09-08 16:18:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_candev [2019-09-08 16:18:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure can_restart_now [2019-09-08 16:18:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure can_bus_off [2019-09-08 16:18:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure can_put_echo_skb [2019-09-08 16:18:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure can_get_echo_skb [2019-09-08 16:18:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure can_free_echo_skb [2019-09-08 16:18:02,073 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_can_skb [2019-09-08 16:18:02,074 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_canfd_skb [2019-09-08 16:18:02,079 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_can_err_skb [2019-09-08 16:18:02,079 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_is_locked [2019-09-08 16:18:02,079 INFO L130 BoogieDeclarations]: Found specification of procedure nla_put [2019-09-08 16:18:02,079 INFO L130 BoogieDeclarations]: Found specification of procedure nla_attr_size [2019-09-08 16:18:02,079 INFO L130 BoogieDeclarations]: Found specification of procedure nla_total_size [2019-09-08 16:18:02,083 INFO L130 BoogieDeclarations]: Found specification of procedure nla_data [2019-09-08 16:18:02,084 INFO L130 BoogieDeclarations]: Found specification of procedure nla_put_u32 [2019-09-08 16:18:02,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 16:18:02,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 16:18:02,084 INFO L130 BoogieDeclarations]: Found specification of procedure nla_get_u32 [2019-09-08 16:18:02,084 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_link_register [2019-09-08 16:18:02,084 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_link_unregister [2019-09-08 16:18:02,084 INFO L130 BoogieDeclarations]: Found specification of procedure sock_hold [2019-09-08 16:18:02,084 INFO L130 BoogieDeclarations]: Found specification of procedure sk_free [2019-09-08 16:18:02,085 INFO L130 BoogieDeclarations]: Found specification of procedure sock_put [2019-09-08 16:18:02,085 INFO L130 BoogieDeclarations]: Found specification of procedure can_skb_prv [2019-09-08 16:18:02,085 INFO L130 BoogieDeclarations]: Found specification of procedure can_skb_reserve [2019-09-08 16:18:02,085 INFO L130 BoogieDeclarations]: Found specification of procedure can_skb_destructor [2019-09-08 16:18:02,086 INFO L130 BoogieDeclarations]: Found specification of procedure can_skb_set_owner [2019-09-08 16:18:02,086 INFO L130 BoogieDeclarations]: Found specification of procedure can_create_echo_skb [2019-09-08 16:18:02,086 INFO L130 BoogieDeclarations]: Found specification of procedure can_update_spt [2019-09-08 16:18:02,086 INFO L130 BoogieDeclarations]: Found specification of procedure can_calc_bittiming [2019-09-08 16:18:02,086 INFO L130 BoogieDeclarations]: Found specification of procedure can_fixup_bittiming [2019-09-08 16:18:02,086 INFO L130 BoogieDeclarations]: Found specification of procedure can_get_bittiming [2019-09-08 16:18:02,086 INFO L130 BoogieDeclarations]: Found specification of procedure can_flush_echo_skb [2019-09-08 16:18:02,086 INFO L130 BoogieDeclarations]: Found specification of procedure can_restart [2019-09-08 16:18:02,086 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2019-09-08 16:18:02,087 INFO L130 BoogieDeclarations]: Found specification of procedure can_setup [2019-09-08 16:18:02,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-08 16:18:02,087 INFO L130 BoogieDeclarations]: Found specification of procedure can_changelink [2019-09-08 16:18:02,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-09-08 16:18:02,087 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-09-08 16:18:02,087 INFO L130 BoogieDeclarations]: Found specification of procedure can_get_size [2019-09-08 16:18:02,087 INFO L130 BoogieDeclarations]: Found specification of procedure can_fill_info [2019-09-08 16:18:02,087 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-08 16:18:02,088 INFO L130 BoogieDeclarations]: Found specification of procedure can_get_xstats_size [2019-09-08 16:18:02,088 INFO L130 BoogieDeclarations]: Found specification of procedure can_fill_xstats [2019-09-08 16:18:02,088 INFO L130 BoogieDeclarations]: Found specification of procedure can_newlink [2019-09-08 16:18:02,088 INFO L130 BoogieDeclarations]: Found specification of procedure can_dev_init [2019-09-08 16:18:02,088 INFO L130 BoogieDeclarations]: Found specification of procedure can_dev_exit [2019-09-08 16:18:02,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2019-09-08 16:18:02,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-08 16:18:02,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-08 16:18:02,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_4 [2019-09-08 16:18:02,089 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2019-09-08 16:18:02,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_main_exported_3 [2019-09-08 16:18:02,089 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 16:18:02,089 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-09-08 16:18:02,089 INFO L130 BoogieDeclarations]: Found specification of procedure __devres_alloc [2019-09-08 16:18:02,089 INFO L130 BoogieDeclarations]: Found specification of procedure devres_add [2019-09-08 16:18:02,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_36 [2019-09-08 16:18:02,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_37 [2019-09-08 16:18:02,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_38 [2019-09-08 16:18:02,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_41 [2019-09-08 16:18:02,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_42 [2019-09-08 16:18:02,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_35 [2019-09-08 16:18:02,090 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdevice_notifier [2019-09-08 16:18:02,090 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice_notifier [2019-09-08 16:18:02,090 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_notifier_info_to_dev [2019-09-08 16:18:02,090 INFO L130 BoogieDeclarations]: Found specification of procedure led_trigger_register_simple [2019-09-08 16:18:02,090 INFO L130 BoogieDeclarations]: Found specification of procedure led_trigger_unregister_simple [2019-09-08 16:18:02,090 INFO L130 BoogieDeclarations]: Found specification of procedure led_trigger_event [2019-09-08 16:18:02,091 INFO L130 BoogieDeclarations]: Found specification of procedure led_trigger_blink_oneshot [2019-09-08 16:18:02,091 INFO L130 BoogieDeclarations]: Found specification of procedure led_trigger_rename_static [2019-09-08 16:18:02,091 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2019-09-08 16:18:02,091 INFO L130 BoogieDeclarations]: Found specification of procedure devm_can_led_init [2019-09-08 16:18:02,091 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_release [2019-09-08 16:18:02,091 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_notifier [2019-09-08 16:18:02,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2019-09-08 16:18:02,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-09-08 16:18:02,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2019-09-08 16:18:02,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2019-09-08 16:18:02,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2019-09-08 16:18:02,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-09-08 16:18:02,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-09-08 16:18:02,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-09-08 16:18:02,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-09-08 16:18:02,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2019-09-08 16:18:02,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2019-09-08 16:18:02,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2019-09-08 16:18:02,093 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-08 16:18:02,093 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-08 16:18:02,093 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-08 16:18:02,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 16:18:02,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-08 16:18:02,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-08 16:18:02,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 16:18:02,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-09-08 16:18:02,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-09-08 16:18:02,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-09-08 16:18:02,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-09-08 16:18:03,193 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-08 16:18:08,184 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 16:18:08,185 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-08 16:18:08,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 04:18:08 BoogieIcfgContainer [2019-09-08 16:18:08,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 16:18:08,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 16:18:08,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 16:18:08,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 16:18:08,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 04:17:58" (1/3) ... [2019-09-08 16:18:08,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e025ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 04:18:08, skipping insertion in model container [2019-09-08 16:18:08,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:18:01" (2/3) ... [2019-09-08 16:18:08,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e025ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 04:18:08, skipping insertion in model container [2019-09-08 16:18:08,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 04:18:08" (3/3) ... [2019-09-08 16:18:08,196 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--can--can-dev.ko-entry_point.cil.out.i [2019-09-08 16:18:08,206 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 16:18:08,222 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 16:18:08,240 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 16:18:08,284 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 16:18:08,284 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 16:18:08,285 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 16:18:08,285 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 16:18:08,285 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 16:18:08,285 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 16:18:08,285 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 16:18:08,285 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 16:18:08,285 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 16:18:08,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states. [2019-09-08 16:18:08,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-09-08 16:18:08,342 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:18:08,343 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:18:08,345 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:18:08,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:18:08,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1692164695, now seen corresponding path program 1 times [2019-09-08 16:18:08,351 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:18:08,351 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:18:08,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:18:08,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:18:08,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:18:08,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:18:09,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 16:18:09,036 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:18:09,036 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:18:09,040 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:18:09,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:18:09,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:18:09,057 INFO L87 Difference]: Start difference. First operand 1127 states. Second operand 3 states. [2019-09-08 16:18:09,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:18:09,636 INFO L93 Difference]: Finished difference Result 2469 states and 3397 transitions. [2019-09-08 16:18:09,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:18:09,638 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2019-09-08 16:18:09,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:18:09,681 INFO L225 Difference]: With dead ends: 2469 [2019-09-08 16:18:09,681 INFO L226 Difference]: Without dead ends: 1605 [2019-09-08 16:18:09,694 INFO L628 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 [2019-09-08 16:18:09,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1605 states. [2019-09-08 16:18:09,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1605 to 1605. [2019-09-08 16:18:09,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1605 states. [2019-09-08 16:18:09,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1605 states to 1605 states and 2157 transitions. [2019-09-08 16:18:09,932 INFO L78 Accepts]: Start accepts. Automaton has 1605 states and 2157 transitions. Word has length 58 [2019-09-08 16:18:09,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:18:09,933 INFO L475 AbstractCegarLoop]: Abstraction has 1605 states and 2157 transitions. [2019-09-08 16:18:09,933 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:18:09,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1605 states and 2157 transitions. [2019-09-08 16:18:09,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-09-08 16:18:09,939 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:18:09,940 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:18:09,940 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:18:09,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:18:09,940 INFO L82 PathProgramCache]: Analyzing trace with hash 719836459, now seen corresponding path program 1 times [2019-09-08 16:18:09,941 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:18:09,941 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:18:09,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:18:09,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:18:09,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:18:10,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:18:10,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 16:18:10,414 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:18:10,414 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 16:18:10,416 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 16:18:10,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 16:18:10,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-08 16:18:10,417 INFO L87 Difference]: Start difference. First operand 1605 states and 2157 transitions. Second operand 6 states. [2019-09-08 16:18:11,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:18:11,885 INFO L93 Difference]: Finished difference Result 4778 states and 6509 transitions. [2019-09-08 16:18:11,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 16:18:11,887 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2019-09-08 16:18:11,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:18:11,924 INFO L225 Difference]: With dead ends: 4778 [2019-09-08 16:18:11,924 INFO L226 Difference]: Without dead ends: 3170 [2019-09-08 16:18:11,935 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-08 16:18:11,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3170 states. [2019-09-08 16:18:12,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3170 to 3170. [2019-09-08 16:18:12,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3170 states. [2019-09-08 16:18:12,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3170 states to 3170 states and 4317 transitions. [2019-09-08 16:18:12,104 INFO L78 Accepts]: Start accepts. Automaton has 3170 states and 4317 transitions. Word has length 67 [2019-09-08 16:18:12,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:18:12,105 INFO L475 AbstractCegarLoop]: Abstraction has 3170 states and 4317 transitions. [2019-09-08 16:18:12,105 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 16:18:12,105 INFO L276 IsEmpty]: Start isEmpty. Operand 3170 states and 4317 transitions. [2019-09-08 16:18:12,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-09-08 16:18:12,121 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:18:12,121 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:18:12,122 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:18:12,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:18:12,122 INFO L82 PathProgramCache]: Analyzing trace with hash 513913028, now seen corresponding path program 1 times [2019-09-08 16:18:12,122 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:18:12,123 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:18:12,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:18:12,128 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:18:12,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:18:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:18:12,536 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-09-08 16:18:12,536 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:18:12,537 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 16:18:12,539 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 16:18:12,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 16:18:12,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 16:18:12,540 INFO L87 Difference]: Start difference. First operand 3170 states and 4317 transitions. Second operand 5 states. [2019-09-08 16:18:12,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:18:12,696 INFO L93 Difference]: Finished difference Result 6343 states and 8737 transitions. [2019-09-08 16:18:12,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 16:18:12,696 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 199 [2019-09-08 16:18:12,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:18:12,722 INFO L225 Difference]: With dead ends: 6343 [2019-09-08 16:18:12,722 INFO L226 Difference]: Without dead ends: 3194 [2019-09-08 16:18:12,736 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 16:18:12,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3194 states. [2019-09-08 16:18:12,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3194 to 3190. [2019-09-08 16:18:12,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3190 states. [2019-09-08 16:18:12,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3190 states to 3190 states and 4356 transitions. [2019-09-08 16:18:12,871 INFO L78 Accepts]: Start accepts. Automaton has 3190 states and 4356 transitions. Word has length 199 [2019-09-08 16:18:12,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:18:12,872 INFO L475 AbstractCegarLoop]: Abstraction has 3190 states and 4356 transitions. [2019-09-08 16:18:12,872 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 16:18:12,872 INFO L276 IsEmpty]: Start isEmpty. Operand 3190 states and 4356 transitions. [2019-09-08 16:18:12,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-09-08 16:18:12,891 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:18:12,892 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2019-09-08 16:18:12,892 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:18:12,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:18:12,892 INFO L82 PathProgramCache]: Analyzing trace with hash -849621677, now seen corresponding path program 1 times [2019-09-08 16:18:12,892 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:18:12,893 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:18:12,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:18:12,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:18:12,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:18:12,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:18:13,183 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-08 16:18:13,184 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:18:13,184 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 16:18:13,185 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 16:18:13,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 16:18:13,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-09-08 16:18:13,185 INFO L87 Difference]: Start difference. First operand 3190 states and 4356 transitions. Second operand 7 states. [2019-09-08 16:18:28,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:18:28,380 INFO L93 Difference]: Finished difference Result 12820 states and 17675 transitions. [2019-09-08 16:18:28,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-08 16:18:28,381 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 203 [2019-09-08 16:18:28,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:18:28,441 INFO L225 Difference]: With dead ends: 12820 [2019-09-08 16:18:28,442 INFO L226 Difference]: Without dead ends: 9651 [2019-09-08 16:18:28,460 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-09-08 16:18:28,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9651 states. [2019-09-08 16:18:28,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9651 to 9575. [2019-09-08 16:18:28,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9575 states. [2019-09-08 16:18:28,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9575 states to 9575 states and 13180 transitions. [2019-09-08 16:18:28,875 INFO L78 Accepts]: Start accepts. Automaton has 9575 states and 13180 transitions. Word has length 203 [2019-09-08 16:18:28,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:18:28,875 INFO L475 AbstractCegarLoop]: Abstraction has 9575 states and 13180 transitions. [2019-09-08 16:18:28,875 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 16:18:28,875 INFO L276 IsEmpty]: Start isEmpty. Operand 9575 states and 13180 transitions. [2019-09-08 16:18:28,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-09-08 16:18:28,905 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:18:28,905 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2019-09-08 16:18:28,906 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:18:28,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:18:28,906 INFO L82 PathProgramCache]: Analyzing trace with hash 514097887, now seen corresponding path program 1 times [2019-09-08 16:18:28,906 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:18:28,907 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:18:28,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:18:28,911 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:18:28,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:18:28,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:18:29,261 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-08 16:18:29,261 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:18:29,262 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 16:18:29,262 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 16:18:29,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 16:18:29,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-09-08 16:18:29,263 INFO L87 Difference]: Start difference. First operand 9575 states and 13180 transitions. Second operand 7 states. [2019-09-08 16:18:40,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:18:40,646 INFO L93 Difference]: Finished difference Result 39034 states and 54405 transitions. [2019-09-08 16:18:40,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-08 16:18:40,647 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 205 [2019-09-08 16:18:40,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:18:40,803 INFO L225 Difference]: With dead ends: 39034 [2019-09-08 16:18:40,803 INFO L226 Difference]: Without dead ends: 29489 [2019-09-08 16:18:40,856 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-09-08 16:18:40,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29489 states. [2019-09-08 16:18:42,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29489 to 29435. [2019-09-08 16:18:42,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29435 states. [2019-09-08 16:18:43,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29435 states to 29435 states and 40988 transitions. [2019-09-08 16:18:43,103 INFO L78 Accepts]: Start accepts. Automaton has 29435 states and 40988 transitions. Word has length 205 [2019-09-08 16:18:43,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:18:43,103 INFO L475 AbstractCegarLoop]: Abstraction has 29435 states and 40988 transitions. [2019-09-08 16:18:43,103 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 16:18:43,103 INFO L276 IsEmpty]: Start isEmpty. Operand 29435 states and 40988 transitions. [2019-09-08 16:18:43,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-09-08 16:18:43,145 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:18:43,145 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2019-09-08 16:18:43,145 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:18:43,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:18:43,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1593460271, now seen corresponding path program 1 times [2019-09-08 16:18:43,146 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:18:43,146 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:18:43,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:18:43,151 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:18:43,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:18:43,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:18:43,485 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-08 16:18:43,486 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:18:43,486 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-08 16:18:43,487 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 16:18:43,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 16:18:43,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-08 16:18:43,487 INFO L87 Difference]: Start difference. First operand 29435 states and 40988 transitions. Second operand 8 states. [2019-09-08 16:18:44,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:18:44,404 INFO L93 Difference]: Finished difference Result 59272 states and 82971 transitions. [2019-09-08 16:18:44,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-08 16:18:44,405 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 204 [2019-09-08 16:18:44,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:18:44,538 INFO L225 Difference]: With dead ends: 59272 [2019-09-08 16:18:44,538 INFO L226 Difference]: Without dead ends: 29867 [2019-09-08 16:18:44,636 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-08 16:18:44,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29867 states. [2019-09-08 16:18:46,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29867 to 29759. [2019-09-08 16:18:46,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29759 states. [2019-09-08 16:18:47,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29759 states to 29759 states and 41348 transitions. [2019-09-08 16:18:47,052 INFO L78 Accepts]: Start accepts. Automaton has 29759 states and 41348 transitions. Word has length 204 [2019-09-08 16:18:47,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:18:47,054 INFO L475 AbstractCegarLoop]: Abstraction has 29759 states and 41348 transitions. [2019-09-08 16:18:47,054 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 16:18:47,054 INFO L276 IsEmpty]: Start isEmpty. Operand 29759 states and 41348 transitions. [2019-09-08 16:18:47,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-09-08 16:18:47,096 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:18:47,096 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2019-09-08 16:18:47,096 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:18:47,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:18:47,097 INFO L82 PathProgramCache]: Analyzing trace with hash 435125839, now seen corresponding path program 1 times [2019-09-08 16:18:47,097 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:18:47,097 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:18:47,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:18:47,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:18:47,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:18:47,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:18:47,732 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-09-08 16:18:47,733 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:18:47,733 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 16:18:47,734 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 16:18:47,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 16:18:47,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-08 16:18:47,735 INFO L87 Difference]: Start difference. First operand 29759 states and 41348 transitions. Second operand 6 states. [2019-09-08 16:18:48,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:18:48,757 INFO L93 Difference]: Finished difference Result 59589 states and 82783 transitions. [2019-09-08 16:18:48,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 16:18:48,758 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 204 [2019-09-08 16:18:48,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:18:48,892 INFO L225 Difference]: With dead ends: 59589 [2019-09-08 16:18:48,893 INFO L226 Difference]: Without dead ends: 29860 [2019-09-08 16:18:48,972 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-09-08 16:18:49,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29860 states. [2019-09-08 16:18:50,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29860 to 29849. [2019-09-08 16:18:50,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29849 states. [2019-09-08 16:18:50,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29849 states to 29849 states and 41429 transitions. [2019-09-08 16:18:50,199 INFO L78 Accepts]: Start accepts. Automaton has 29849 states and 41429 transitions. Word has length 204 [2019-09-08 16:18:50,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:18:50,200 INFO L475 AbstractCegarLoop]: Abstraction has 29849 states and 41429 transitions. [2019-09-08 16:18:50,200 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 16:18:50,200 INFO L276 IsEmpty]: Start isEmpty. Operand 29849 states and 41429 transitions. [2019-09-08 16:18:50,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-09-08 16:18:50,233 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:18:50,233 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2019-09-08 16:18:50,233 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:18:50,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:18:50,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1532057265, now seen corresponding path program 1 times [2019-09-08 16:18:50,234 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:18:50,234 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:18:50,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:18:50,238 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:18:50,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:18:50,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:18:50,454 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-08 16:18:50,454 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:18:50,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 16:18:50,456 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 16:18:50,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 16:18:50,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-09-08 16:18:50,457 INFO L87 Difference]: Start difference. First operand 29849 states and 41429 transitions. Second operand 7 states. [2019-09-08 16:19:06,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:19:06,513 INFO L93 Difference]: Finished difference Result 120966 states and 170345 transitions. [2019-09-08 16:19:06,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-08 16:19:06,513 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 206 [2019-09-08 16:19:06,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:19:07,138 INFO L225 Difference]: With dead ends: 120966 [2019-09-08 16:19:07,138 INFO L226 Difference]: Without dead ends: 91147 [2019-09-08 16:19:07,206 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-09-08 16:19:07,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91147 states. [2019-09-08 16:19:11,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91147 to 90973. [2019-09-08 16:19:11,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90973 states. [2019-09-08 16:19:11,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90973 states to 90973 states and 128011 transitions. [2019-09-08 16:19:11,326 INFO L78 Accepts]: Start accepts. Automaton has 90973 states and 128011 transitions. Word has length 206 [2019-09-08 16:19:11,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:19:11,327 INFO L475 AbstractCegarLoop]: Abstraction has 90973 states and 128011 transitions. [2019-09-08 16:19:11,327 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 16:19:11,327 INFO L276 IsEmpty]: Start isEmpty. Operand 90973 states and 128011 transitions. [2019-09-08 16:19:11,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-09-08 16:19:11,358 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:19:11,359 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2019-09-08 16:19:11,359 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:19:11,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:19:11,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1153222063, now seen corresponding path program 1 times [2019-09-08 16:19:11,359 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:19:11,360 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:19:11,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:19:11,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:19:11,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:19:12,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:19:12,573 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-09-08 16:19:12,573 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:19:12,573 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:19:12,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:19:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:19:13,349 INFO L256 TraceCheckSpWp]: Trace formula consists of 3353 conjuncts, 62 conjunts are in the unsatisfiable core [2019-09-08 16:19:13,370 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:19:13,758 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 16:19:13,816 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (2)] Exception during sending of exit command (exit): Stream closed [2019-09-08 16:19:13,829 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 16:19:13,829 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [13] total 22 [2019-09-08 16:19:13,832 INFO L454 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-09-08 16:19:13,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-09-08 16:19:13,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=413, Unknown=0, NotChecked=0, Total=462 [2019-09-08 16:19:13,833 INFO L87 Difference]: Start difference. First operand 90973 states and 128011 transitions. Second operand 22 states. [2019-09-08 16:19:18,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:19:18,231 INFO L93 Difference]: Finished difference Result 183970 states and 260529 transitions. [2019-09-08 16:19:18,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-08 16:19:18,232 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 204 [2019-09-08 16:19:18,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:19:18,837 INFO L225 Difference]: With dead ends: 183970 [2019-09-08 16:19:18,837 INFO L226 Difference]: Without dead ends: 93027 [2019-09-08 16:19:19,092 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2019-09-08 16:19:19,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93027 states. [2019-09-08 16:19:24,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93027 to 92323. [2019-09-08 16:19:24,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92323 states. [2019-09-08 16:19:24,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92323 states to 92323 states and 129577 transitions. [2019-09-08 16:19:24,632 INFO L78 Accepts]: Start accepts. Automaton has 92323 states and 129577 transitions. Word has length 204 [2019-09-08 16:19:24,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:19:24,633 INFO L475 AbstractCegarLoop]: Abstraction has 92323 states and 129577 transitions. [2019-09-08 16:19:24,633 INFO L476 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-09-08 16:19:24,633 INFO L276 IsEmpty]: Start isEmpty. Operand 92323 states and 129577 transitions. [2019-09-08 16:19:24,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2019-09-08 16:19:24,742 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:19:24,743 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:19:24,743 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:19:24,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:19:24,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1730865189, now seen corresponding path program 1 times [2019-09-08 16:19:24,744 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:19:24,744 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:19:24,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:19:24,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:19:24,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:19:24,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:19:24,958 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-09-08 16:19:24,959 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:19:24,959 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:19:24,960 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:19:24,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:19:24,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:19:24,961 INFO L87 Difference]: Start difference. First operand 92323 states and 129577 transitions. Second operand 3 states. [2019-09-08 16:19:29,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:19:29,439 INFO L93 Difference]: Finished difference Result 139266 states and 196901 transitions. [2019-09-08 16:19:29,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:19:29,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 218 [2019-09-08 16:19:29,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:19:29,964 INFO L225 Difference]: With dead ends: 139266 [2019-09-08 16:19:29,965 INFO L226 Difference]: Without dead ends: 92539 [2019-09-08 16:19:30,131 INFO L628 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 [2019-09-08 16:19:30,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92539 states. [2019-09-08 16:19:33,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92539 to 92431. [2019-09-08 16:19:33,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92431 states. [2019-09-08 16:19:33,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92431 states to 92431 states and 129685 transitions. [2019-09-08 16:19:33,661 INFO L78 Accepts]: Start accepts. Automaton has 92431 states and 129685 transitions. Word has length 218 [2019-09-08 16:19:33,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:19:33,662 INFO L475 AbstractCegarLoop]: Abstraction has 92431 states and 129685 transitions. [2019-09-08 16:19:33,662 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:19:33,662 INFO L276 IsEmpty]: Start isEmpty. Operand 92431 states and 129685 transitions. [2019-09-08 16:19:33,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2019-09-08 16:19:33,701 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:19:33,701 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:19:33,702 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:19:33,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:19:33,702 INFO L82 PathProgramCache]: Analyzing trace with hash -2103790428, now seen corresponding path program 1 times [2019-09-08 16:19:33,702 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:19:33,702 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:19:33,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:19:33,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:19:33,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:19:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:19:34,197 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-09-08 16:19:34,197 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:19:34,198 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 16:19:34,198 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 16:19:34,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 16:19:34,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-09-08 16:19:34,199 INFO L87 Difference]: Start difference. First operand 92431 states and 129685 transitions. Second operand 9 states. [2019-09-08 16:19:49,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:19:49,002 INFO L93 Difference]: Finished difference Result 204434 states and 286663 transitions. [2019-09-08 16:19:49,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-08 16:19:49,002 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 220 [2019-09-08 16:19:49,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:19:49,475 INFO L225 Difference]: With dead ends: 204434 [2019-09-08 16:19:49,476 INFO L226 Difference]: Without dead ends: 112033 [2019-09-08 16:19:49,675 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2019-09-08 16:19:49,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112033 states. [2019-09-08 16:19:56,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112033 to 109595. [2019-09-08 16:19:56,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109595 states. [2019-09-08 16:19:56,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109595 states to 109595 states and 151699 transitions. [2019-09-08 16:19:56,845 INFO L78 Accepts]: Start accepts. Automaton has 109595 states and 151699 transitions. Word has length 220 [2019-09-08 16:19:56,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:19:56,846 INFO L475 AbstractCegarLoop]: Abstraction has 109595 states and 151699 transitions. [2019-09-08 16:19:56,846 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 16:19:56,846 INFO L276 IsEmpty]: Start isEmpty. Operand 109595 states and 151699 transitions. [2019-09-08 16:19:56,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2019-09-08 16:19:56,900 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:19:56,900 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:19:56,901 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:19:56,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:19:56,901 INFO L82 PathProgramCache]: Analyzing trace with hash 193778805, now seen corresponding path program 1 times [2019-09-08 16:19:56,901 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:19:56,902 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:19:56,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:19:56,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:19:56,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:19:56,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:19:57,169 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-08 16:19:57,169 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:19:57,170 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 16:19:57,171 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 16:19:57,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 16:19:57,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-09-08 16:19:57,171 INFO L87 Difference]: Start difference. First operand 109595 states and 151699 transitions. Second operand 7 states. [2019-09-08 16:20:19,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:20:19,127 INFO L93 Difference]: Finished difference Result 444750 states and 626907 transitions. [2019-09-08 16:20:19,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-08 16:20:19,128 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 233 [2019-09-08 16:20:19,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:20:20,857 INFO L225 Difference]: With dead ends: 444750 [2019-09-08 16:20:20,857 INFO L226 Difference]: Without dead ends: 335185 [2019-09-08 16:20:21,109 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-09-08 16:20:21,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335185 states. [2019-09-08 16:20:34,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335185 to 333687. [2019-09-08 16:20:34,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333687 states. [2019-09-08 16:20:35,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333687 states to 333687 states and 468993 transitions. [2019-09-08 16:20:35,926 INFO L78 Accepts]: Start accepts. Automaton has 333687 states and 468993 transitions. Word has length 233 [2019-09-08 16:20:35,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:20:35,927 INFO L475 AbstractCegarLoop]: Abstraction has 333687 states and 468993 transitions. [2019-09-08 16:20:35,927 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 16:20:35,927 INFO L276 IsEmpty]: Start isEmpty. Operand 333687 states and 468993 transitions. [2019-09-08 16:20:36,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2019-09-08 16:20:36,011 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:20:36,012 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:20:36,012 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:20:36,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:20:36,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1648401565, now seen corresponding path program 1 times [2019-09-08 16:20:36,012 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:20:36,012 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:20:36,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:20:36,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:20:36,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:20:36,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:20:36,309 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-08 16:20:36,310 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:20:36,310 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-08 16:20:36,310 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-08 16:20:36,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-08 16:20:36,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 16:20:36,311 INFO L87 Difference]: Start difference. First operand 333687 states and 468993 transitions. Second operand 4 states. [2019-09-08 16:20:51,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:20:51,658 INFO L93 Difference]: Finished difference Result 668802 states and 947493 transitions. [2019-09-08 16:20:51,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-08 16:20:51,659 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 233 [2019-09-08 16:20:51,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:20:52,739 INFO L225 Difference]: With dead ends: 668802 [2019-09-08 16:20:52,739 INFO L226 Difference]: Without dead ends: 334173 [2019-09-08 16:20:53,331 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-08 16:20:53,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334173 states. [2019-09-08 16:21:18,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334173 to 334173. [2019-09-08 16:21:18,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334173 states. [2019-09-08 16:21:19,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334173 states to 334173 states and 469479 transitions. [2019-09-08 16:21:19,712 INFO L78 Accepts]: Start accepts. Automaton has 334173 states and 469479 transitions. Word has length 233 [2019-09-08 16:21:19,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:21:19,712 INFO L475 AbstractCegarLoop]: Abstraction has 334173 states and 469479 transitions. [2019-09-08 16:21:19,712 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-08 16:21:19,712 INFO L276 IsEmpty]: Start isEmpty. Operand 334173 states and 469479 transitions. [2019-09-08 16:21:19,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-09-08 16:21:19,770 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:21:19,771 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:21:19,771 INFO L418 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:21:19,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:21:19,771 INFO L82 PathProgramCache]: Analyzing trace with hash -135321872, now seen corresponding path program 1 times [2019-09-08 16:21:19,772 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:21:19,772 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:21:19,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:21:19,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:21:19,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:21:19,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:21:20,032 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-08 16:21:20,032 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:21:20,032 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 16:21:20,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:21:20,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:21:20,578 INFO L256 TraceCheckSpWp]: Trace formula consists of 3504 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-08 16:21:20,588 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:21:20,669 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-09-08 16:21:20,678 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:21:20,678 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2019-09-08 16:21:20,679 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 16:21:20,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 16:21:20,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-09-08 16:21:20,679 INFO L87 Difference]: Start difference. First operand 334173 states and 469479 transitions. Second operand 8 states. [2019-09-08 16:21:40,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:21:40,096 INFO L93 Difference]: Finished difference Result 669774 states and 948465 transitions. [2019-09-08 16:21:40,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 16:21:40,096 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 234 [2019-09-08 16:21:40,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:21:41,221 INFO L225 Difference]: With dead ends: 669774 [2019-09-08 16:21:41,222 INFO L226 Difference]: Without dead ends: 334659 [2019-09-08 16:21:41,812 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2019-09-08 16:21:42,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334659 states. [2019-09-08 16:22:02,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334659 to 334659. [2019-09-08 16:22:02,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334659 states. [2019-09-08 16:22:03,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334659 states to 334659 states and 469965 transitions. [2019-09-08 16:22:03,431 INFO L78 Accepts]: Start accepts. Automaton has 334659 states and 469965 transitions. Word has length 234 [2019-09-08 16:22:03,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:22:03,432 INFO L475 AbstractCegarLoop]: Abstraction has 334659 states and 469965 transitions. [2019-09-08 16:22:03,432 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 16:22:03,432 INFO L276 IsEmpty]: Start isEmpty. Operand 334659 states and 469965 transitions. [2019-09-08 16:22:03,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2019-09-08 16:22:03,489 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:22:03,489 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:22:03,490 INFO L418 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:22:03,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:22:03,490 INFO L82 PathProgramCache]: Analyzing trace with hash -474491645, now seen corresponding path program 2 times [2019-09-08 16:22:03,490 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:22:03,490 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:22:03,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:22:03,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:22:03,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:22:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:22:03,787 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-08 16:22:03,789 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:22:03,789 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 16:22:03,814 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:22:05,926 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-08 16:22:05,927 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 16:22:05,941 INFO L256 TraceCheckSpWp]: Trace formula consists of 3510 conjuncts, 5 conjunts are in the unsatisfiable core [2019-09-08 16:22:05,947 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:22:06,014 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-09-08 16:22:06,024 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:22:06,025 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2019-09-08 16:22:06,025 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-08 16:22:06,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-08 16:22:06,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-09-08 16:22:06,026 INFO L87 Difference]: Start difference. First operand 334659 states and 469965 transitions. Second operand 10 states. [2019-09-08 16:22:25,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:22:25,531 INFO L93 Difference]: Finished difference Result 670746 states and 949437 transitions. [2019-09-08 16:22:25,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 16:22:25,532 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 235 [2019-09-08 16:22:25,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:22:26,547 INFO L225 Difference]: With dead ends: 670746 [2019-09-08 16:22:26,547 INFO L226 Difference]: Without dead ends: 335145 [2019-09-08 16:22:27,089 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2019-09-08 16:22:27,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335145 states. [2019-09-08 16:22:37,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335145 to 335145. [2019-09-08 16:22:37,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335145 states. [2019-09-08 16:22:39,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335145 states to 335145 states and 470451 transitions. [2019-09-08 16:22:39,849 INFO L78 Accepts]: Start accepts. Automaton has 335145 states and 470451 transitions. Word has length 235 [2019-09-08 16:22:39,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:22:39,850 INFO L475 AbstractCegarLoop]: Abstraction has 335145 states and 470451 transitions. [2019-09-08 16:22:39,850 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-08 16:22:39,850 INFO L276 IsEmpty]: Start isEmpty. Operand 335145 states and 470451 transitions. [2019-09-08 16:22:39,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2019-09-08 16:22:39,908 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:22:39,908 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:22:39,909 INFO L418 AbstractCegarLoop]: === Iteration 16 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:22:39,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:22:39,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1896147280, now seen corresponding path program 3 times [2019-09-08 16:22:39,909 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:22:39,909 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:22:39,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:22:39,912 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 16:22:39,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:22:40,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:22:40,176 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-08 16:22:40,176 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:22:40,176 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 16:22:40,199 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:22:42,617 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-09-08 16:22:42,617 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 16:22:42,641 INFO L256 TraceCheckSpWp]: Trace formula consists of 3498 conjuncts, 70 conjunts are in the unsatisfiable core [2019-09-08 16:22:42,649 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:22:42,939 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 16:22:43,028 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-09-08 16:22:43,040 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 16:22:43,040 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [7] total 22 [2019-09-08 16:22:43,041 INFO L454 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-09-08 16:22:43,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-09-08 16:22:43,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2019-09-08 16:22:43,042 INFO L87 Difference]: Start difference. First operand 335145 states and 470451 transitions. Second operand 22 states. [2019-09-08 16:22:59,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:22:59,231 INFO L93 Difference]: Finished difference Result 678524 states and 960131 transitions. [2019-09-08 16:22:59,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-09-08 16:22:59,232 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 236 [2019-09-08 16:22:59,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:23:00,383 INFO L225 Difference]: With dead ends: 678524 [2019-09-08 16:23:00,383 INFO L226 Difference]: Without dead ends: 342437 [2019-09-08 16:23:02,067 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=632, Unknown=0, NotChecked=0, Total=702 [2019-09-08 16:23:02,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342437 states. [2019-09-08 16:23:22,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342437 to 340815. [2019-09-08 16:23:22,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340815 states. [2019-09-08 16:23:24,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340815 states to 340815 states and 477579 transitions. [2019-09-08 16:23:24,415 INFO L78 Accepts]: Start accepts. Automaton has 340815 states and 477579 transitions. Word has length 236 [2019-09-08 16:23:24,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:23:24,415 INFO L475 AbstractCegarLoop]: Abstraction has 340815 states and 477579 transitions. [2019-09-08 16:23:24,415 INFO L476 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-09-08 16:23:24,415 INFO L276 IsEmpty]: Start isEmpty. Operand 340815 states and 477579 transitions. [2019-09-08 16:23:24,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2019-09-08 16:23:24,480 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:23:24,480 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:23:24,480 INFO L418 AbstractCegarLoop]: === Iteration 17 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:23:24,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:23:24,481 INFO L82 PathProgramCache]: Analyzing trace with hash -755261118, now seen corresponding path program 1 times [2019-09-08 16:23:24,481 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:23:24,481 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:23:24,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:23:24,484 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 16:23:24,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:23:24,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:23:24,819 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-08 16:23:24,819 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:23:24,820 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:23:24,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:23:25,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:23:25,353 INFO L256 TraceCheckSpWp]: Trace formula consists of 3528 conjuncts, 7 conjunts are in the unsatisfiable core [2019-09-08 16:23:25,361 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:23:25,458 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-09-08 16:23:25,468 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:23:25,468 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2019-09-08 16:23:25,471 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-08 16:23:25,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-08 16:23:25,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=109, Unknown=0, NotChecked=0, Total=182 [2019-09-08 16:23:25,472 INFO L87 Difference]: Start difference. First operand 340815 states and 477579 transitions. Second operand 14 states. [2019-09-08 16:23:41,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:23:41,878 INFO L93 Difference]: Finished difference Result 683058 states and 965475 transitions. [2019-09-08 16:23:41,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-08 16:23:41,878 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 237 [2019-09-08 16:23:41,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:23:42,965 INFO L225 Difference]: With dead ends: 683058 [2019-09-08 16:23:42,965 INFO L226 Difference]: Without dead ends: 341301 [2019-09-08 16:23:44,558 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2019-09-08 16:23:44,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341301 states. [2019-09-08 16:24:05,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341301 to 341301. [2019-09-08 16:24:05,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341301 states. [2019-09-08 16:24:06,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341301 states to 341301 states and 478065 transitions. [2019-09-08 16:24:06,975 INFO L78 Accepts]: Start accepts. Automaton has 341301 states and 478065 transitions. Word has length 237 [2019-09-08 16:24:06,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:24:06,976 INFO L475 AbstractCegarLoop]: Abstraction has 341301 states and 478065 transitions. [2019-09-08 16:24:06,976 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-08 16:24:06,976 INFO L276 IsEmpty]: Start isEmpty. Operand 341301 states and 478065 transitions. [2019-09-08 16:24:07,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-09-08 16:24:07,036 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:24:07,036 INFO L399 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:24:07,036 INFO L418 AbstractCegarLoop]: === Iteration 18 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:24:07,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:24:07,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1096078927, now seen corresponding path program 2 times [2019-09-08 16:24:07,037 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:24:07,037 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:24:07,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:24:07,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:24:07,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:24:07,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:24:07,446 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-08 16:24:07,446 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:24:07,446 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 16:24:07,470 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:24:08,348 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-08 16:24:08,348 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 16:24:08,363 INFO L256 TraceCheckSpWp]: Trace formula consists of 3534 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-08 16:24:08,370 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:24:08,491 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 22 proven. 15 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-09-08 16:24:08,511 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:24:08,511 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2019-09-08 16:24:08,513 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-08 16:24:08,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-08 16:24:08,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=144, Unknown=0, NotChecked=0, Total=240 [2019-09-08 16:24:08,514 INFO L87 Difference]: Start difference. First operand 341301 states and 478065 transitions. Second operand 16 states. [2019-09-08 16:24:24,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:24:24,886 INFO L93 Difference]: Finished difference Result 684030 states and 966447 transitions. [2019-09-08 16:24:24,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-08 16:24:24,886 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 238 [2019-09-08 16:24:24,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:24:26,007 INFO L225 Difference]: With dead ends: 684030 [2019-09-08 16:24:26,007 INFO L226 Difference]: Without dead ends: 341787 [2019-09-08 16:24:26,602 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2019-09-08 16:24:26,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341787 states. [2019-09-08 16:24:48,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341787 to 341787. [2019-09-08 16:24:48,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341787 states. [2019-09-08 16:24:50,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341787 states to 341787 states and 478551 transitions. [2019-09-08 16:24:50,333 INFO L78 Accepts]: Start accepts. Automaton has 341787 states and 478551 transitions. Word has length 238 [2019-09-08 16:24:50,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:24:50,334 INFO L475 AbstractCegarLoop]: Abstraction has 341787 states and 478551 transitions. [2019-09-08 16:24:50,334 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-08 16:24:50,334 INFO L276 IsEmpty]: Start isEmpty. Operand 341787 states and 478551 transitions. [2019-09-08 16:24:50,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-09-08 16:24:50,394 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:24:50,395 INFO L399 BasicCegarLoop]: trace histogram [6, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:24:50,395 INFO L418 AbstractCegarLoop]: === Iteration 19 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:24:50,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:24:50,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1641921822, now seen corresponding path program 3 times [2019-09-08 16:24:50,395 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:24:50,396 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:24:50,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:24:50,398 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 16:24:50,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:24:50,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:24:50,866 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-08 16:24:50,868 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:24:50,868 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:24:50,915 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-08 16:24:53,953 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-09-08 16:24:53,953 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 16:24:53,978 INFO L256 TraceCheckSpWp]: Trace formula consists of 3504 conjuncts, 88 conjunts are in the unsatisfiable core [2019-09-08 16:24:53,984 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:24:54,551 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-08 16:24:54,565 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 16:24:54,565 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [10] total 28 [2019-09-08 16:24:54,566 INFO L454 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-09-08 16:24:54,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-09-08 16:24:54,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2019-09-08 16:24:54,567 INFO L87 Difference]: Start difference. First operand 341787 states and 478551 transitions. Second operand 28 states. [2019-09-08 16:25:16,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:25:16,514 INFO L93 Difference]: Finished difference Result 695696 states and 985339 transitions. [2019-09-08 16:25:16,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-09-08 16:25:16,515 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 239 [2019-09-08 16:25:16,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:25:17,896 INFO L225 Difference]: With dead ends: 695696 [2019-09-08 16:25:17,897 INFO L226 Difference]: Without dead ends: 352967 [2019-09-08 16:25:18,512 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=99, Invalid=893, Unknown=0, NotChecked=0, Total=992 [2019-09-08 16:25:18,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352967 states. [2019-09-08 16:25:30,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352967 to 344217. [2019-09-08 16:25:30,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344217 states. [2019-09-08 16:25:32,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344217 states to 344217 states and 480981 transitions. [2019-09-08 16:25:32,417 INFO L78 Accepts]: Start accepts. Automaton has 344217 states and 480981 transitions. Word has length 239 [2019-09-08 16:25:32,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:25:32,417 INFO L475 AbstractCegarLoop]: Abstraction has 344217 states and 480981 transitions. [2019-09-08 16:25:32,418 INFO L476 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-09-08 16:25:32,418 INFO L276 IsEmpty]: Start isEmpty. Operand 344217 states and 480981 transitions. [2019-09-08 16:25:32,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2019-09-08 16:25:32,522 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:25:32,522 INFO L399 BasicCegarLoop]: trace histogram [7, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:25:32,522 INFO L418 AbstractCegarLoop]: === Iteration 20 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:25:32,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:25:32,522 INFO L82 PathProgramCache]: Analyzing trace with hash 385823059, now seen corresponding path program 1 times [2019-09-08 16:25:32,523 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:25:32,523 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:25:32,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:25:32,525 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 16:25:32,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:25:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:25:32,878 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-09-08 16:25:32,879 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:25:32,879 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 16:25:32,879 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 16:25:32,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 16:25:32,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-09-08 16:25:32,880 INFO L87 Difference]: Start difference. First operand 344217 states and 480981 transitions. Second operand 9 states. [2019-09-08 16:26:08,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:26:08,889 INFO L93 Difference]: Finished difference Result 663342 states and 951201 transitions. [2019-09-08 16:26:08,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-08 16:26:08,890 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 258 [2019-09-08 16:26:08,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:26:11,923 INFO L225 Difference]: With dead ends: 663342 [2019-09-08 16:26:11,923 INFO L226 Difference]: Without dead ends: 463203 [2019-09-08 16:26:12,348 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2019-09-08 16:26:12,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463203 states. [2019-09-08 16:26:39,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463203 to 409017. [2019-09-08 16:26:39,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409017 states. [2019-09-08 16:26:40,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409017 states to 409017 states and 561333 transitions. [2019-09-08 16:26:40,769 INFO L78 Accepts]: Start accepts. Automaton has 409017 states and 561333 transitions. Word has length 258 [2019-09-08 16:26:40,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:26:40,769 INFO L475 AbstractCegarLoop]: Abstraction has 409017 states and 561333 transitions. [2019-09-08 16:26:40,769 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 16:26:40,769 INFO L276 IsEmpty]: Start isEmpty. Operand 409017 states and 561333 transitions. [2019-09-08 16:26:40,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2019-09-08 16:26:40,858 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:26:40,858 INFO L399 BasicCegarLoop]: trace histogram [7, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:26:40,858 INFO L418 AbstractCegarLoop]: === Iteration 21 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:26:40,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:26:40,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1862080402, now seen corresponding path program 1 times [2019-09-08 16:26:40,858 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:26:40,859 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:26:40,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:26:40,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:26:40,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:26:40,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:26:41,053 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-09-08 16:26:41,053 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:26:41,053 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-08 16:26:41,054 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-08 16:26:41,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-08 16:26:41,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 16:26:41,054 INFO L87 Difference]: Start difference. First operand 409017 states and 561333 transitions. Second operand 4 states. [2019-09-08 16:27:02,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:27:02,643 INFO L93 Difference]: Finished difference Result 675414 states and 928485 transitions. [2019-09-08 16:27:02,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 16:27:02,644 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 260 [2019-09-08 16:27:02,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:27:03,990 INFO L225 Difference]: With dead ends: 675414 [2019-09-08 16:27:03,990 INFO L226 Difference]: Without dead ends: 410475 [2019-09-08 16:27:04,461 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-08 16:27:04,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410475 states. [2019-09-08 16:27:19,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410475 to 409503. [2019-09-08 16:27:19,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409503 states. [2019-09-08 16:27:21,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409503 states to 409503 states and 561981 transitions. [2019-09-08 16:27:21,504 INFO L78 Accepts]: Start accepts. Automaton has 409503 states and 561981 transitions. Word has length 260 [2019-09-08 16:27:21,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:27:21,504 INFO L475 AbstractCegarLoop]: Abstraction has 409503 states and 561981 transitions. [2019-09-08 16:27:21,504 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-08 16:27:21,504 INFO L276 IsEmpty]: Start isEmpty. Operand 409503 states and 561981 transitions. [2019-09-08 16:27:21,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2019-09-08 16:27:21,657 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:27:21,658 INFO L399 BasicCegarLoop]: trace histogram [7, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:27:21,658 INFO L418 AbstractCegarLoop]: === Iteration 22 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:27:21,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:27:21,658 INFO L82 PathProgramCache]: Analyzing trace with hash -1900400387, now seen corresponding path program 1 times [2019-09-08 16:27:21,658 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:27:21,659 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:27:21,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:27:21,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:27:21,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:27:22,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:27:22,281 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-08 16:27:22,282 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:27:22,282 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:27:22,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:27:22,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:27:22,937 INFO L256 TraceCheckSpWp]: Trace formula consists of 3652 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-08 16:27:22,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:27:23,047 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 22 proven. 28 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-09-08 16:27:23,056 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:27:23,056 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2019-09-08 16:27:23,057 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-08 16:27:23,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-08 16:27:23,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=229, Unknown=0, NotChecked=0, Total=380 [2019-09-08 16:27:23,058 INFO L87 Difference]: Start difference. First operand 409503 states and 561981 transitions. Second operand 20 states. [2019-09-08 16:27:42,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:27:42,704 INFO L93 Difference]: Finished difference Result 821406 states and 1138329 transitions. [2019-09-08 16:27:42,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-08 16:27:42,707 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 263 [2019-09-08 16:27:42,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:27:44,795 INFO L225 Difference]: With dead ends: 821406 [2019-09-08 16:27:44,796 INFO L226 Difference]: Without dead ends: 410313 [2019-09-08 16:27:45,488 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=163, Invalid=257, Unknown=0, NotChecked=0, Total=420 [2019-09-08 16:27:45,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410313 states.