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_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--libertas_tf--libertas_tf.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 06:55:49,335 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 06:55:49,337 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 06:55:49,349 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 06:55:49,349 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 06:55:49,350 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 06:55:49,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 06:55:49,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 06:55:49,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 06:55:49,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 06:55:49,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 06:55:49,366 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 06:55:49,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 06:55:49,368 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 06:55:49,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 06:55:49,372 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 06:55:49,373 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 06:55:49,374 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 06:55:49,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 06:55:49,383 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 06:55:49,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 06:55:49,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 06:55:49,388 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 06:55:49,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 06:55:49,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 06:55:49,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 06:55:49,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 06:55:49,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 06:55:49,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 06:55:49,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 06:55:49,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 06:55:49,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 06:55:49,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 06:55:49,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 06:55:49,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 06:55:49,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 06:55:49,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 06:55:49,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 06:55:49,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 06:55:49,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 06:55:49,402 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 06:55:49,403 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-02 06:55:49,424 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 06:55:49,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 06:55:49,426 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-02 06:55:49,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-02 06:55:49,426 INFO L138 SettingsManager]: * Use SBE=true [2019-10-02 06:55:49,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 06:55:49,427 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 06:55:49,427 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-02 06:55:49,427 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 06:55:49,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 06:55:49,428 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 06:55:49,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 06:55:49,429 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 06:55:49,429 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 06:55:49,429 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 06:55:49,430 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-02 06:55:49,430 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 06:55:49,430 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 06:55:49,430 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 06:55:49,430 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-02 06:55:49,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-02 06:55:49,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 06:55:49,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 06:55:49,431 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 06:55:49,432 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-02 06:55:49,432 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-02 06:55:49,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 06:55:49,432 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-02 06:55:49,432 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 06:55:49,476 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 06:55:49,488 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 06:55:49,492 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 06:55:49,493 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 06:55:49,494 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 06:55:49,494 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--libertas_tf--libertas_tf.ko-entry_point.cil.out.i [2019-10-02 06:55:49,561 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76d7a4170/67a2838e0bc340a099db1439a7059583/FLAGc99334bc4 [2019-10-02 06:55:50,433 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 06:55:50,434 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--libertas_tf--libertas_tf.ko-entry_point.cil.out.i [2019-10-02 06:55:50,472 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76d7a4170/67a2838e0bc340a099db1439a7059583/FLAGc99334bc4 [2019-10-02 06:55:50,914 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76d7a4170/67a2838e0bc340a099db1439a7059583 [2019-10-02 06:55:50,927 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 06:55:50,928 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 06:55:50,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 06:55:50,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 06:55:50,932 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 06:55:50,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 06:55:50" (1/1) ... [2019-10-02 06:55:50,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@145dab92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 06:55:50, skipping insertion in model container [2019-10-02 06:55:50,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 06:55:50" (1/1) ... [2019-10-02 06:55:50,946 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 06:55:51,173 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 06:55:53,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 06:55:53,801 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 06:55:54,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 06:55:54,502 INFO L192 MainTranslator]: Completed translation [2019-10-02 06:55:54,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 06:55:54 WrapperNode [2019-10-02 06:55:54,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 06:55:54,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 06:55:54,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 06:55:54,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 06:55:54,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 06:55:54" (1/1) ... [2019-10-02 06:55:54,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 06:55:54" (1/1) ... [2019-10-02 06:55:54,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 06:55:54" (1/1) ... [2019-10-02 06:55:54,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 06:55:54" (1/1) ... [2019-10-02 06:55:54,790 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 06:55:54" (1/1) ... [2019-10-02 06:55:54,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 06:55:54" (1/1) ... [2019-10-02 06:55:54,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 06:55:54" (1/1) ... [2019-10-02 06:55:55,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 06:55:55,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 06:55:55,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 06:55:55,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 06:55:55,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 06:55:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 06:55:55,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 06:55:55,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 06:55:55,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~X~~u16~0~TO~int [2019-10-02 06:55:55,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-10-02 06:55:55,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2019-10-02 06:55:55,105 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-02 06:55:55,105 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-10-02 06:55:55,105 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2019-10-02 06:55:55,106 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-02 06:55:55,106 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2019-10-02 06:55:55,106 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2019-10-02 06:55:55,106 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-02 06:55:55,107 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2019-10-02 06:55:55,107 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2019-10-02 06:55:55,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_head_init [2019-10-02 06:55:55,108 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2019-10-02 06:55:55,110 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2019-10-02 06:55:55,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-02 06:55:55,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-02 06:55:55,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successfull_zalloc [2019-10-02 06:55:55,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-02 06:55:55,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-02 06:55:55,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-02 06:55:55,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-02 06:55:55,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-02 06:55:55,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-02 06:55:55,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-02 06:55:55,112 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2019-10-02 06:55:55,112 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2019-10-02 06:55:55,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_has_a4 [2019-10-02 06:55:55,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_data_qos [2019-10-02 06:55:55,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_qos_ctl [2019-10-02 06:55:55,113 INFO L138 BoogieDeclarations]: Found implementation of procedure set_wiphy_dev [2019-10-02 06:55:55,114 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2019-10-02 06:55:55,114 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_RXCB [2019-10-02 06:55:55,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_tx_info_clear_status [2019-10-02 06:55:55,114 INFO L138 BoogieDeclarations]: Found implementation of procedure SET_IEEE80211_DEV [2019-10-02 06:55:55,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2019-10-02 06:55:55,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_beacon_get [2019-10-02 06:55:55,115 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_deb_hex [2019-10-02 06:55:55,115 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_cmd_work [2019-10-02 06:55:55,116 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_setup_firmware [2019-10-02 06:55:55,116 INFO L138 BoogieDeclarations]: Found implementation of procedure command_timer_fn [2019-10-02 06:55:55,117 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_init_adapter [2019-10-02 06:55:55,117 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_free_adapter [2019-10-02 06:55:55,117 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_op_tx [2019-10-02 06:55:55,117 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_tx_work [2019-10-02 06:55:55,117 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_op_start [2019-10-02 06:55:55,118 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_op_stop [2019-10-02 06:55:55,118 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_op_add_interface [2019-10-02 06:55:55,118 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_op_remove_interface [2019-10-02 06:55:55,118 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_op_config [2019-10-02 06:55:55,119 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_op_prepare_multicast [2019-10-02 06:55:55,119 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_op_configure_filter [2019-10-02 06:55:55,119 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_op_bss_info_changed [2019-10-02 06:55:55,119 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_op_get_survey [2019-10-02 06:55:55,120 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_rx [2019-10-02 06:55:55,120 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_add_card [2019-10-02 06:55:55,120 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_remove_card [2019-10-02 06:55:55,121 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_send_tx_feedback [2019-10-02 06:55:55,121 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_bcn_sent [2019-10-02 06:55:55,121 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_init_module [2019-10-02 06:55:55,121 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_exit_module [2019-10-02 06:55:55,122 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2019-10-02 06:55:55,122 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_init_1 [2019-10-02 06:55:55,122 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2019-10-02 06:55:55,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_ieee80211_ops_2 [2019-10-02 06:55:55,123 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_1 [2019-10-02 06:55:55,123 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2019-10-02 06:55:55,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2019-10-02 06:55:55,124 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2019-10-02 06:55:55,124 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 06:55:55,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2019-10-02 06:55:55,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2019-10-02 06:55:55,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2019-10-02 06:55:55,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2019-10-02 06:55:55,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2019-10-02 06:55:55,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_12 [2019-10-02 06:55:55,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_dequeue_13 [2019-10-02 06:55:55,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_dequeue_14 [2019-10-02 06:55:55,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_15 [2019-10-02 06:55:55,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_16 [2019-10-02 06:55:55,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_17 [2019-10-02 06:55:55,128 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-10-02 06:55:55,128 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2019-10-02 06:55:55,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-02 06:55:55,129 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-02 06:55:55,130 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-02 06:55:55,131 INFO L138 BoogieDeclarations]: Found implementation of procedure SET_IEEE80211_PERM_ADDR [2019-10-02 06:55:55,131 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_cmd_copyback [2019-10-02 06:55:55,131 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_geo_init [2019-10-02 06:55:55,132 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_update_hw_spec [2019-10-02 06:55:55,132 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_set_channel [2019-10-02 06:55:55,132 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_beacon_set [2019-10-02 06:55:55,133 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_beacon_ctrl [2019-10-02 06:55:55,133 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_queue_cmd [2019-10-02 06:55:55,133 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_submit_command [2019-10-02 06:55:55,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbtf_cleanup_and_insert_cmd [2019-10-02 06:55:55,134 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_cleanup_and_insert_cmd [2019-10-02 06:55:55,134 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_complete_command [2019-10-02 06:55:55,134 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_cmd_set_mac_multicast_addr [2019-10-02 06:55:55,134 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_set_mode [2019-10-02 06:55:55,134 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_set_bssid [2019-10-02 06:55:55,135 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_set_mac_address [2019-10-02 06:55:55,135 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_set_radio_control [2019-10-02 06:55:55,135 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_set_mac_control [2019-10-02 06:55:55,135 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_allocate_cmd_buffer [2019-10-02 06:55:55,136 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_free_cmd_buffer [2019-10-02 06:55:55,136 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_get_cmd_ctrl_node [2019-10-02 06:55:55,136 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_execute_next_command [2019-10-02 06:55:55,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbtf_cmd_async [2019-10-02 06:55:55,137 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_cmd_async [2019-10-02 06:55:55,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbtf_cmd [2019-10-02 06:55:55,137 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_cmd_response_rx [2019-10-02 06:55:55,137 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_process_rx_command [2019-10-02 06:55:55,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2019-10-02 06:55:55,138 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-02 06:55:55,138 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-02 06:55:55,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_24 [2019-10-02 06:55:55,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_25 [2019-10-02 06:55:55,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_26 [2019-10-02 06:55:55,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_27 [2019-10-02 06:55:55,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_30 [2019-10-02 06:55:55,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_31 [2019-10-02 06:55:55,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_32 [2019-10-02 06:55:55,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2019-10-02 06:55:55,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-10-02 06:55:55,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2019-10-02 06:55:55,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2019-10-02 06:55:55,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2019-10-02 06:55:55,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-02 06:55:55,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-02 06:55:55,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-02 06:55:55,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-02 06:55:55,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2019-10-02 06:55:55,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-02 06:55:55,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2019-10-02 06:55:55,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2019-10-02 06:55:55,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2019-10-02 06:55:55,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2019-10-02 06:55:55,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2019-10-02 06:55:55,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-02 06:55:55,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_workqueue_key [2019-10-02 06:55:55,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2019-10-02 06:55:55,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-02 06:55:55,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2019-10-02 06:55:55,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-02 06:55:55,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2019-10-02 06:55:55,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-02 06:55:55,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-02 06:55:55,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-02 06:55:55,163 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2019-10-02 06:55:55,163 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-02 06:55:55,164 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2019-10-02 06:55:55,164 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-02 06:55:55,164 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2019-10-02 06:55:55,164 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2019-10-02 06:55:55,164 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2019-10-02 06:55:55,165 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-10-02 06:55:55,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_alloc_hw [2019-10-02 06:55:55,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_beacon_get_tim [2019-10-02 06:55:55,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2019-10-02 06:55:55,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_buffered_bc [2019-10-02 06:55:55,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_register_hw [2019-10-02 06:55:55,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_rx_irqsafe [2019-10-02 06:55:55,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_stop_queues [2019-10-02 06:55:55,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_tx_status_irqsafe [2019-10-02 06:55:55,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_unregister_hw [2019-10-02 06:55:55,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_wake_queues [2019-10-02 06:55:55,167 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-02 06:55:55,167 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2019-10-02 06:55:55,167 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2019-10-02 06:55:55,167 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-02 06:55:55,168 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-02 06:55:55,168 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2019-10-02 06:55:55,168 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2019-10-02 06:55:55,168 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2019-10-02 06:55:55,168 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-02 06:55:55,169 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2019-10-02 06:55:55,169 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-02 06:55:55,169 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2019-10-02 06:55:55,169 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2019-10-02 06:55:55,170 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2019-10-02 06:55:55,170 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-02 06:55:55,170 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-02 06:55:55,170 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-02 06:55:55,171 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-02 06:55:55,171 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-02 06:55:55,171 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-02 06:55:55,171 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2019-10-02 06:55:55,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 06:55:55,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-02 06:55:55,171 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-02 06:55:55,172 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2019-10-02 06:55:55,172 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-10-02 06:55:55,172 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-02 06:55:55,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-02 06:55:55,173 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-02 06:55:55,173 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-10-02 06:55:55,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-02 06:55:55,173 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-02 06:55:55,173 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-02 06:55:55,173 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-02 06:55:55,173 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-02 06:55:55,173 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2019-10-02 06:55:55,174 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2019-10-02 06:55:55,174 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2019-10-02 06:55:55,174 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-02 06:55:55,174 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2019-10-02 06:55:55,174 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-02 06:55:55,175 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2019-10-02 06:55:55,175 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-02 06:55:55,175 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-02 06:55:55,175 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2019-10-02 06:55:55,175 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2019-10-02 06:55:55,176 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-02 06:55:55,176 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-02 06:55:55,176 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-02 06:55:55,176 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2019-10-02 06:55:55,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_12 [2019-10-02 06:55:55,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_16 [2019-10-02 06:55:55,177 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2019-10-02 06:55:55,177 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_workqueue_key [2019-10-02 06:55:55,177 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2019-10-02 06:55:55,178 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2019-10-02 06:55:55,178 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2019-10-02 06:55:55,178 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2019-10-02 06:55:55,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2019-10-02 06:55:55,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2019-10-02 06:55:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2019-10-02 06:55:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2019-10-02 06:55:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_15 [2019-10-02 06:55:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_17 [2019-10-02 06:55:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2019-10-02 06:55:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2019-10-02 06:55:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_head_init [2019-10-02 06:55:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 06:55:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2019-10-02 06:55:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 06:55:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 06:55:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2019-10-02 06:55:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_dequeue_13 [2019-10-02 06:55:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_dequeue_14 [2019-10-02 06:55:55,182 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2019-10-02 06:55:55,182 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2019-10-02 06:55:55,182 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2019-10-02 06:55:55,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 06:55:55,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2019-10-02 06:55:55,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2019-10-02 06:55:55,183 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-02 06:55:55,183 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-02 06:55:55,183 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 06:55:55,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2019-10-02 06:55:55,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-02 06:55:55,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-02 06:55:55,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-02 06:55:55,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-02 06:55:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-02 06:55:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-02 06:55:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-02 06:55:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-02 06:55:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successfull_zalloc [2019-10-02 06:55:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-02 06:55:55,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-02 06:55:55,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-02 06:55:55,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-02 06:55:55,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-02 06:55:55,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-02 06:55:55,193 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2019-10-02 06:55:55,193 INFO L130 BoogieDeclarations]: Found specification of procedure timer_init_1 [2019-10-02 06:55:55,193 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2019-10-02 06:55:55,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_ieee80211_ops_2 [2019-10-02 06:55:55,198 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_1 [2019-10-02 06:55:55,199 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2019-10-02 06:55:55,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2019-10-02 06:55:55,199 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2019-10-02 06:55:55,199 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2019-10-02 06:55:55,199 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2019-10-02 06:55:55,200 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2019-10-02 06:55:55,200 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_has_a4 [2019-10-02 06:55:55,200 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_data_qos [2019-10-02 06:55:55,200 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_qos_ctl [2019-10-02 06:55:55,200 INFO L130 BoogieDeclarations]: Found specification of procedure set_wiphy_dev [2019-10-02 06:55:55,200 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2019-10-02 06:55:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_RXCB [2019-10-02 06:55:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_tx_info_clear_status [2019-10-02 06:55:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-02 06:55:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure SET_IEEE80211_DEV [2019-10-02 06:55:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2019-10-02 06:55:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_alloc_hw [2019-10-02 06:55:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_register_hw [2019-10-02 06:55:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_unregister_hw [2019-10-02 06:55:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2019-10-02 06:55:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_rx_irqsafe [2019-10-02 06:55:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_tx_status_irqsafe [2019-10-02 06:55:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_beacon_get_tim [2019-10-02 06:55:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_beacon_get [2019-10-02 06:55:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_buffered_bc [2019-10-02 06:55:55,204 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_stop_queues [2019-10-02 06:55:55,204 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_wake_queues [2019-10-02 06:55:55,204 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_deb_hex [2019-10-02 06:55:55,204 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_set_mac_control [2019-10-02 06:55:55,204 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_free_cmd_buffer [2019-10-02 06:55:55,205 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_allocate_cmd_buffer [2019-10-02 06:55:55,205 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_execute_next_command [2019-10-02 06:55:55,205 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_set_radio_control [2019-10-02 06:55:55,205 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_update_hw_spec [2019-10-02 06:55:55,205 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_cmd_set_mac_multicast_addr [2019-10-02 06:55:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_set_mode [2019-10-02 06:55:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_set_bssid [2019-10-02 06:55:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_set_mac_address [2019-10-02 06:55:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_set_channel [2019-10-02 06:55:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_beacon_set [2019-10-02 06:55:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_beacon_ctrl [2019-10-02 06:55:55,207 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_process_rx_command [2019-10-02 06:55:55,207 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_complete_command [2019-10-02 06:55:55,207 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_add_card [2019-10-02 06:55:55,207 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_remove_card [2019-10-02 06:55:55,207 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_rx [2019-10-02 06:55:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_send_tx_feedback [2019-10-02 06:55:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_bcn_sent [2019-10-02 06:55:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_cmd_work [2019-10-02 06:55:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_setup_firmware [2019-10-02 06:55:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure command_timer_fn [2019-10-02 06:55:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_init_adapter [2019-10-02 06:55:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_free_adapter [2019-10-02 06:55:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_op_tx [2019-10-02 06:55:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_tx_work [2019-10-02 06:55:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-02 06:55:55,210 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~X~~u16~0~TO~int [2019-10-02 06:55:55,210 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_op_start [2019-10-02 06:55:55,210 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-10-02 06:55:55,210 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_op_stop [2019-10-02 06:55:55,210 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_op_add_interface [2019-10-02 06:55:55,211 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_op_remove_interface [2019-10-02 06:55:55,211 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_op_config [2019-10-02 06:55:55,211 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_op_prepare_multicast [2019-10-02 06:55:55,211 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_op_configure_filter [2019-10-02 06:55:55,211 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_op_bss_info_changed [2019-10-02 06:55:55,211 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_op_get_survey [2019-10-02 06:55:55,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2019-10-02 06:55:55,212 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_init_module [2019-10-02 06:55:55,212 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_exit_module [2019-10-02 06:55:55,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-02 06:55:55,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-02 06:55:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 06:55:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2019-10-02 06:55:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-02 06:55:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-02 06:55:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-02 06:55:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-10-02 06:55:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-02 06:55:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2019-10-02 06:55:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2019-10-02 06:55:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-02 06:55:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-02 06:55:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-02 06:55:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2019-10-02 06:55:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-10-02 06:55:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-02 06:55:55,216 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-02 06:55:55,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_32 [2019-10-02 06:55:55,216 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2019-10-02 06:55:55,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_31 [2019-10-02 06:55:55,216 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2019-10-02 06:55:55,217 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-02 06:55:55,217 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-02 06:55:55,217 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-02 06:55:55,217 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-02 06:55:55,217 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-02 06:55:55,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_25 [2019-10-02 06:55:55,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_26 [2019-10-02 06:55:55,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_27 [2019-10-02 06:55:55,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_30 [2019-10-02 06:55:55,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_24 [2019-10-02 06:55:55,219 INFO L130 BoogieDeclarations]: Found specification of procedure SET_IEEE80211_PERM_ADDR [2019-10-02 06:55:55,219 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_cmd_response_rx [2019-10-02 06:55:55,219 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_cmd_async [2019-10-02 06:55:55,219 INFO L130 BoogieDeclarations]: Found specification of procedure __lbtf_cmd [2019-10-02 06:55:55,219 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_cmd_copyback [2019-10-02 06:55:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_get_cmd_ctrl_node [2019-10-02 06:55:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_geo_init [2019-10-02 06:55:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_queue_cmd [2019-10-02 06:55:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_submit_command [2019-10-02 06:55:55,221 INFO L130 BoogieDeclarations]: Found specification of procedure __lbtf_cleanup_and_insert_cmd [2019-10-02 06:55:55,221 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_cleanup_and_insert_cmd [2019-10-02 06:55:55,221 INFO L130 BoogieDeclarations]: Found specification of procedure __lbtf_cmd_async [2019-10-02 06:55:55,221 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2019-10-02 06:55:55,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2019-10-02 06:55:55,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-10-02 06:55:55,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2019-10-02 06:55:55,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2019-10-02 06:55:55,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2019-10-02 06:55:55,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-02 06:55:55,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2019-10-02 06:55:55,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2019-10-02 06:55:55,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2019-10-02 06:55:55,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2019-10-02 06:55:55,225 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-02 06:55:55,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-02 06:55:55,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-02 06:55:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-02 06:55:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 06:55:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-02 06:55:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-02 06:55:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 06:55:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-02 06:55:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-02 06:55:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-02 06:55:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-02 06:55:57,205 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-02 06:56:35,592 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 06:56:35,593 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-02 06:56:35,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 06:56:35 BoogieIcfgContainer [2019-10-02 06:56:35,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 06:56:35,598 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 06:56:35,599 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 06:56:35,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 06:56:35,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 06:55:50" (1/3) ... [2019-10-02 06:56:35,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f2fbf9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 06:56:35, skipping insertion in model container [2019-10-02 06:56:35,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 06:55:54" (2/3) ... [2019-10-02 06:56:35,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f2fbf9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 06:56:35, skipping insertion in model container [2019-10-02 06:56:35,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 06:56:35" (3/3) ... [2019-10-02 06:56:35,609 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--libertas_tf--libertas_tf.ko-entry_point.cil.out.i [2019-10-02 06:56:35,623 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 06:56:35,639 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 06:56:35,665 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 06:56:35,724 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-10-02 06:56:35,725 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 06:56:35,725 INFO L378 AbstractCegarLoop]: Hoare is true [2019-10-02 06:56:35,725 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 06:56:35,726 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 06:56:35,726 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 06:56:35,726 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 06:56:35,726 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 06:56:35,727 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 06:56:35,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states. [2019-10-02 06:56:35,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-10-02 06:56:35,853 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 06:56:35,855 INFO L411 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 06:56:35,858 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 06:56:35,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 06:56:35,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1632586924, now seen corresponding path program 1 times [2019-10-02 06:56:35,869 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 06:56:35,870 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 06:56:36,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:56:36,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 06:56:36,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:56:37,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 06:56:38,009 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2019-10-02 06:56:38,011 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 06:56:38,012 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-02 06:56:38,016 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-02 06:56:38,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-02 06:56:38,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-02 06:56:38,033 INFO L87 Difference]: Start difference. First operand 1991 states. Second operand 6 states. [2019-10-02 06:56:46,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 06:56:46,844 INFO L93 Difference]: Finished difference Result 3626 states and 4997 transitions. [2019-10-02 06:56:46,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 06:56:46,846 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 117 [2019-10-02 06:56:46,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 06:56:46,888 INFO L225 Difference]: With dead ends: 3626 [2019-10-02 06:56:46,889 INFO L226 Difference]: Without dead ends: 2375 [2019-10-02 06:56:46,904 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-02 06:56:46,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2375 states. [2019-10-02 06:56:47,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2375 to 2375. [2019-10-02 06:56:47,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2375 states. [2019-10-02 06:56:47,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2375 states to 2375 states and 3250 transitions. [2019-10-02 06:56:47,156 INFO L78 Accepts]: Start accepts. Automaton has 2375 states and 3250 transitions. Word has length 117 [2019-10-02 06:56:47,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 06:56:47,158 INFO L475 AbstractCegarLoop]: Abstraction has 2375 states and 3250 transitions. [2019-10-02 06:56:47,158 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-02 06:56:47,158 INFO L276 IsEmpty]: Start isEmpty. Operand 2375 states and 3250 transitions. [2019-10-02 06:56:47,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-10-02 06:56:47,184 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 06:56:47,185 INFO L411 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 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] [2019-10-02 06:56:47,185 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 06:56:47,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 06:56:47,186 INFO L82 PathProgramCache]: Analyzing trace with hash -291592071, now seen corresponding path program 1 times [2019-10-02 06:56:47,186 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 06:56:47,186 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 06:56:47,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:56:47,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 06:56:47,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:56:47,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 06:56:48,005 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2019-10-02 06:56:48,005 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 06:56:48,006 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 06:56:48,008 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 06:56:48,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 06:56:48,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 06:56:48,009 INFO L87 Difference]: Start difference. First operand 2375 states and 3250 transitions. Second operand 3 states. [2019-10-02 06:56:54,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 06:56:54,231 INFO L93 Difference]: Finished difference Result 4989 states and 6817 transitions. [2019-10-02 06:56:54,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 06:56:54,232 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 227 [2019-10-02 06:56:54,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 06:56:54,249 INFO L225 Difference]: With dead ends: 4989 [2019-10-02 06:56:54,249 INFO L226 Difference]: Without dead ends: 2646 [2019-10-02 06:56:54,262 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 06:56:54,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2646 states. [2019-10-02 06:56:54,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2646 to 2634. [2019-10-02 06:56:54,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2634 states. [2019-10-02 06:56:54,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2634 states to 2634 states and 3593 transitions. [2019-10-02 06:56:54,418 INFO L78 Accepts]: Start accepts. Automaton has 2634 states and 3593 transitions. Word has length 227 [2019-10-02 06:56:54,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 06:56:54,419 INFO L475 AbstractCegarLoop]: Abstraction has 2634 states and 3593 transitions. [2019-10-02 06:56:54,419 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 06:56:54,419 INFO L276 IsEmpty]: Start isEmpty. Operand 2634 states and 3593 transitions. [2019-10-02 06:56:54,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2019-10-02 06:56:54,440 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 06:56:54,441 INFO L411 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 06:56:54,441 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 06:56:54,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 06:56:54,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1692811639, now seen corresponding path program 1 times [2019-10-02 06:56:54,441 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 06:56:54,442 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 06:56:54,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:56:54,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 06:56:54,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:56:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 06:56:55,262 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2019-10-02 06:56:55,262 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 06:56:55,262 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 06:56:55,264 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 06:56:55,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 06:56:55,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 06:56:55,264 INFO L87 Difference]: Start difference. First operand 2634 states and 3593 transitions. Second operand 3 states. [2019-10-02 06:57:05,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 06:57:05,447 INFO L93 Difference]: Finished difference Result 6861 states and 9393 transitions. [2019-10-02 06:57:05,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 06:57:05,447 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 270 [2019-10-02 06:57:05,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 06:57:05,474 INFO L225 Difference]: With dead ends: 6861 [2019-10-02 06:57:05,475 INFO L226 Difference]: Without dead ends: 4277 [2019-10-02 06:57:05,491 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 06:57:05,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4277 states. [2019-10-02 06:57:05,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4277 to 4265. [2019-10-02 06:57:05,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4265 states. [2019-10-02 06:57:05,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4265 states to 4265 states and 5808 transitions. [2019-10-02 06:57:05,689 INFO L78 Accepts]: Start accepts. Automaton has 4265 states and 5808 transitions. Word has length 270 [2019-10-02 06:57:05,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 06:57:05,690 INFO L475 AbstractCegarLoop]: Abstraction has 4265 states and 5808 transitions. [2019-10-02 06:57:05,690 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 06:57:05,690 INFO L276 IsEmpty]: Start isEmpty. Operand 4265 states and 5808 transitions. [2019-10-02 06:57:05,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2019-10-02 06:57:05,706 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 06:57:05,706 INFO L411 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 06:57:05,706 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 06:57:05,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 06:57:05,707 INFO L82 PathProgramCache]: Analyzing trace with hash -609292287, now seen corresponding path program 1 times [2019-10-02 06:57:05,707 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 06:57:05,707 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 06:57:05,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:57:05,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 06:57:05,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:57:05,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 06:57:06,472 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2019-10-02 06:57:06,473 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 06:57:06,474 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 06:57:06,474 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 06:57:06,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 06:57:06,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 06:57:06,475 INFO L87 Difference]: Start difference. First operand 4265 states and 5808 transitions. Second operand 3 states. [2019-10-02 06:57:06,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 06:57:06,600 INFO L93 Difference]: Finished difference Result 6426 states and 8764 transitions. [2019-10-02 06:57:06,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 06:57:06,600 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 270 [2019-10-02 06:57:06,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 06:57:06,632 INFO L225 Difference]: With dead ends: 6426 [2019-10-02 06:57:06,633 INFO L226 Difference]: Without dead ends: 4273 [2019-10-02 06:57:06,648 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 06:57:06,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4273 states. [2019-10-02 06:57:06,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4273 to 4269. [2019-10-02 06:57:06,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4269 states. [2019-10-02 06:57:07,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4269 states to 4269 states and 5812 transitions. [2019-10-02 06:57:07,080 INFO L78 Accepts]: Start accepts. Automaton has 4269 states and 5812 transitions. Word has length 270 [2019-10-02 06:57:07,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 06:57:07,083 INFO L475 AbstractCegarLoop]: Abstraction has 4269 states and 5812 transitions. [2019-10-02 06:57:07,083 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 06:57:07,083 INFO L276 IsEmpty]: Start isEmpty. Operand 4269 states and 5812 transitions. [2019-10-02 06:57:07,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2019-10-02 06:57:07,100 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 06:57:07,101 INFO L411 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 06:57:07,101 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 06:57:07,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 06:57:07,102 INFO L82 PathProgramCache]: Analyzing trace with hash 27450114, now seen corresponding path program 1 times [2019-10-02 06:57:07,102 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 06:57:07,102 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 06:57:07,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:57:07,117 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 06:57:07,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:57:07,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 06:57:07,879 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2019-10-02 06:57:07,879 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 06:57:07,879 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 06:57:07,880 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 06:57:07,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 06:57:07,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 06:57:07,881 INFO L87 Difference]: Start difference. First operand 4269 states and 5812 transitions. Second operand 3 states. [2019-10-02 06:57:17,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 06:57:17,364 INFO L93 Difference]: Finished difference Result 8458 states and 11522 transitions. [2019-10-02 06:57:17,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 06:57:17,365 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 272 [2019-10-02 06:57:17,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 06:57:17,392 INFO L225 Difference]: With dead ends: 8458 [2019-10-02 06:57:17,392 INFO L226 Difference]: Without dead ends: 4148 [2019-10-02 06:57:17,411 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 06:57:17,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4148 states. [2019-10-02 06:57:17,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4148 to 4148. [2019-10-02 06:57:17,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4148 states. [2019-10-02 06:57:17,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4148 states to 4148 states and 5635 transitions. [2019-10-02 06:57:17,593 INFO L78 Accepts]: Start accepts. Automaton has 4148 states and 5635 transitions. Word has length 272 [2019-10-02 06:57:17,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 06:57:17,593 INFO L475 AbstractCegarLoop]: Abstraction has 4148 states and 5635 transitions. [2019-10-02 06:57:17,593 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 06:57:17,594 INFO L276 IsEmpty]: Start isEmpty. Operand 4148 states and 5635 transitions. [2019-10-02 06:57:17,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2019-10-02 06:57:17,607 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 06:57:17,608 INFO L411 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 06:57:17,608 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 06:57:17,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 06:57:17,609 INFO L82 PathProgramCache]: Analyzing trace with hash 194718293, now seen corresponding path program 1 times [2019-10-02 06:57:17,609 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 06:57:17,609 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 06:57:17,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:57:17,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 06:57:17,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:57:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 06:57:18,519 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2019-10-02 06:57:18,520 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 06:57:18,520 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-02 06:57:18,520 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-02 06:57:18,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-02 06:57:18,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-02 06:57:18,521 INFO L87 Difference]: Start difference. First operand 4148 states and 5635 transitions. Second operand 5 states. [2019-10-02 06:57:27,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 06:57:27,659 INFO L93 Difference]: Finished difference Result 8251 states and 11219 transitions. [2019-10-02 06:57:27,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-02 06:57:27,660 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 273 [2019-10-02 06:57:27,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 06:57:27,685 INFO L225 Difference]: With dead ends: 8251 [2019-10-02 06:57:27,685 INFO L226 Difference]: Without dead ends: 4148 [2019-10-02 06:57:27,703 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-02 06:57:27,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4148 states. [2019-10-02 06:57:27,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4148 to 4148. [2019-10-02 06:57:27,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4148 states. [2019-10-02 06:57:27,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4148 states to 4148 states and 5634 transitions. [2019-10-02 06:57:27,919 INFO L78 Accepts]: Start accepts. Automaton has 4148 states and 5634 transitions. Word has length 273 [2019-10-02 06:57:27,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 06:57:27,919 INFO L475 AbstractCegarLoop]: Abstraction has 4148 states and 5634 transitions. [2019-10-02 06:57:27,920 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-02 06:57:27,920 INFO L276 IsEmpty]: Start isEmpty. Operand 4148 states and 5634 transitions. [2019-10-02 06:57:27,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2019-10-02 06:57:27,941 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 06:57:27,941 INFO L411 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 06:57:27,942 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 06:57:27,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 06:57:27,942 INFO L82 PathProgramCache]: Analyzing trace with hash 11027186, now seen corresponding path program 1 times [2019-10-02 06:57:27,942 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 06:57:27,943 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 06:57:27,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:57:27,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 06:57:27,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:57:28,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 06:57:28,816 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2019-10-02 06:57:28,816 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 06:57:28,816 INFO L224 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 [2019-10-02 06:57:30,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 06:57:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 06:57:38,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 10595 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-02 06:57:38,156 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 06:57:38,305 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2019-10-02 06:57:38,448 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 06:57:38,448 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2019-10-02 06:57:38,449 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-02 06:57:38,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-02 06:57:38,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-02 06:57:38,450 INFO L87 Difference]: Start difference. First operand 4148 states and 5634 transitions. Second operand 6 states. [2019-10-02 06:57:38,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 06:57:38,643 INFO L93 Difference]: Finished difference Result 8314 states and 11354 transitions. [2019-10-02 06:57:38,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-02 06:57:38,644 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 275 [2019-10-02 06:57:38,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 06:57:38,683 INFO L225 Difference]: With dead ends: 8314 [2019-10-02 06:57:38,684 INFO L226 Difference]: Without dead ends: 4157 [2019-10-02 06:57:38,704 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-02 06:57:38,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4157 states. [2019-10-02 06:57:38,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4157 to 4153. [2019-10-02 06:57:38,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4153 states. [2019-10-02 06:57:38,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4153 states to 4153 states and 5637 transitions. [2019-10-02 06:57:38,917 INFO L78 Accepts]: Start accepts. Automaton has 4153 states and 5637 transitions. Word has length 275 [2019-10-02 06:57:38,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 06:57:38,917 INFO L475 AbstractCegarLoop]: Abstraction has 4153 states and 5637 transitions. [2019-10-02 06:57:38,918 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-02 06:57:38,918 INFO L276 IsEmpty]: Start isEmpty. Operand 4153 states and 5637 transitions. [2019-10-02 06:57:38,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2019-10-02 06:57:38,938 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 06:57:38,938 INFO L411 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 06:57:38,938 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 06:57:38,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 06:57:38,939 INFO L82 PathProgramCache]: Analyzing trace with hash -474658912, now seen corresponding path program 1 times [2019-10-02 06:57:38,939 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 06:57:38,939 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 06:57:38,959 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:57:38,959 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 06:57:38,959 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:57:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 06:57:41,121 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2019-10-02 06:57:41,122 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 06:57:41,122 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-02 06:57:41,124 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-02 06:57:41,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-02 06:57:41,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-10-02 06:57:41,125 INFO L87 Difference]: Start difference. First operand 4153 states and 5637 transitions. Second operand 9 states. [2019-10-02 06:58:05,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 06:58:05,943 INFO L93 Difference]: Finished difference Result 9045 states and 12281 transitions. [2019-10-02 06:58:05,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-02 06:58:05,944 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 316 [2019-10-02 06:58:05,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 06:58:05,971 INFO L225 Difference]: With dead ends: 9045 [2019-10-02 06:58:05,971 INFO L226 Difference]: Without dead ends: 5077 [2019-10-02 06:58:05,986 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2019-10-02 06:58:05,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5077 states. [2019-10-02 06:58:06,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5077 to 4987. [2019-10-02 06:58:06,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4987 states. [2019-10-02 06:58:06,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4987 states to 4987 states and 6732 transitions. [2019-10-02 06:58:06,170 INFO L78 Accepts]: Start accepts. Automaton has 4987 states and 6732 transitions. Word has length 316 [2019-10-02 06:58:06,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 06:58:06,171 INFO L475 AbstractCegarLoop]: Abstraction has 4987 states and 6732 transitions. [2019-10-02 06:58:06,171 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-02 06:58:06,171 INFO L276 IsEmpty]: Start isEmpty. Operand 4987 states and 6732 transitions. [2019-10-02 06:58:06,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2019-10-02 06:58:06,191 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 06:58:06,191 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 06:58:06,192 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 06:58:06,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 06:58:06,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1297597066, now seen corresponding path program 1 times [2019-10-02 06:58:06,192 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 06:58:06,193 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 06:58:06,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:58:06,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 06:58:06,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:58:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 06:58:07,183 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2019-10-02 06:58:07,184 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 06:58:07,184 INFO L224 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) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 06:58:08,163 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 06:58:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 06:58:17,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 11515 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-02 06:58:17,138 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 06:58:17,296 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 206 proven. 1 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2019-10-02 06:58:17,392 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 06:58:17,393 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 7 [2019-10-02 06:58:17,394 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-02 06:58:17,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-02 06:58:17,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-02 06:58:17,395 INFO L87 Difference]: Start difference. First operand 4987 states and 6732 transitions. Second operand 7 states. [2019-10-02 06:58:17,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 06:58:17,754 INFO L93 Difference]: Finished difference Result 10190 states and 13893 transitions. [2019-10-02 06:58:17,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 06:58:17,755 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 460 [2019-10-02 06:58:17,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 06:58:17,777 INFO L225 Difference]: With dead ends: 10190 [2019-10-02 06:58:17,777 INFO L226 Difference]: Without dead ends: 5234 [2019-10-02 06:58:17,792 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 459 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-10-02 06:58:17,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5234 states. [2019-10-02 06:58:17,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5234 to 5006. [2019-10-02 06:58:17,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5006 states. [2019-10-02 06:58:17,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5006 states to 5006 states and 6751 transitions. [2019-10-02 06:58:17,987 INFO L78 Accepts]: Start accepts. Automaton has 5006 states and 6751 transitions. Word has length 460 [2019-10-02 06:58:17,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 06:58:17,988 INFO L475 AbstractCegarLoop]: Abstraction has 5006 states and 6751 transitions. [2019-10-02 06:58:17,988 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-02 06:58:17,988 INFO L276 IsEmpty]: Start isEmpty. Operand 5006 states and 6751 transitions. [2019-10-02 06:58:18,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2019-10-02 06:58:18,010 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 06:58:18,010 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 06:58:18,010 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 06:58:18,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 06:58:18,011 INFO L82 PathProgramCache]: Analyzing trace with hash 504130060, now seen corresponding path program 1 times [2019-10-02 06:58:18,011 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 06:58:18,011 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 06:58:18,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:58:18,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 06:58:18,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:58:18,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 06:58:18,998 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2019-10-02 06:58:18,999 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 06:58:18,999 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-02 06:58:19,000 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-02 06:58:19,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-02 06:58:19,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-02 06:58:19,001 INFO L87 Difference]: Start difference. First operand 5006 states and 6751 transitions. Second operand 5 states. [2019-10-02 06:58:19,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 06:58:19,131 INFO L93 Difference]: Finished difference Result 9844 states and 13317 transitions. [2019-10-02 06:58:19,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-02 06:58:19,131 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 467 [2019-10-02 06:58:19,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 06:58:19,165 INFO L225 Difference]: With dead ends: 9844 [2019-10-02 06:58:19,165 INFO L226 Difference]: Without dead ends: 5024 [2019-10-02 06:58:19,177 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-02 06:58:19,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5024 states. [2019-10-02 06:58:19,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5024 to 5020. [2019-10-02 06:58:19,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5020 states. [2019-10-02 06:58:19,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5020 states to 5020 states and 6765 transitions. [2019-10-02 06:58:19,353 INFO L78 Accepts]: Start accepts. Automaton has 5020 states and 6765 transitions. Word has length 467 [2019-10-02 06:58:19,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 06:58:19,354 INFO L475 AbstractCegarLoop]: Abstraction has 5020 states and 6765 transitions. [2019-10-02 06:58:19,354 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-02 06:58:19,354 INFO L276 IsEmpty]: Start isEmpty. Operand 5020 states and 6765 transitions. [2019-10-02 06:58:19,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2019-10-02 06:58:19,371 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 06:58:19,372 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 6, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 06:58:19,372 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 06:58:19,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 06:58:19,373 INFO L82 PathProgramCache]: Analyzing trace with hash 893191478, now seen corresponding path program 1 times [2019-10-02 06:58:19,373 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 06:58:19,373 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 06:58:19,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:58:19,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 06:58:19,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:58:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 06:58:20,867 INFO L134 CoverageAnalysis]: Checked inductivity of 585 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2019-10-02 06:58:20,868 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 06:58:20,868 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-02 06:58:20,869 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-02 06:58:20,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-02 06:58:20,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-02 06:58:20,869 INFO L87 Difference]: Start difference. First operand 5020 states and 6765 transitions. Second operand 6 states. [2019-10-02 06:58:21,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 06:58:21,041 INFO L93 Difference]: Finished difference Result 9898 states and 13372 transitions. [2019-10-02 06:58:21,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-02 06:58:21,042 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 472 [2019-10-02 06:58:21,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 06:58:21,064 INFO L225 Difference]: With dead ends: 9898 [2019-10-02 06:58:21,065 INFO L226 Difference]: Without dead ends: 5064 [2019-10-02 06:58:21,076 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-02 06:58:21,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5064 states. [2019-10-02 06:58:21,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5064 to 5042. [2019-10-02 06:58:21,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5042 states. [2019-10-02 06:58:21,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5042 states to 5042 states and 6793 transitions. [2019-10-02 06:58:21,263 INFO L78 Accepts]: Start accepts. Automaton has 5042 states and 6793 transitions. Word has length 472 [2019-10-02 06:58:21,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 06:58:21,264 INFO L475 AbstractCegarLoop]: Abstraction has 5042 states and 6793 transitions. [2019-10-02 06:58:21,264 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-02 06:58:21,265 INFO L276 IsEmpty]: Start isEmpty. Operand 5042 states and 6793 transitions. [2019-10-02 06:58:21,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2019-10-02 06:58:21,289 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 06:58:21,292 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 6, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 06:58:21,292 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 06:58:21,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 06:58:21,293 INFO L82 PathProgramCache]: Analyzing trace with hash -514111917, now seen corresponding path program 1 times [2019-10-02 06:58:21,293 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 06:58:21,293 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 06:58:21,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:58:21,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 06:58:21,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:58:21,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 06:58:22,317 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 571 trivial. 0 not checked. [2019-10-02 06:58:22,317 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 06:58:22,317 INFO L224 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) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 06:58:23,027 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 06:58:31,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 06:58:32,079 INFO L256 TraceCheckSpWp]: Trace formula consists of 11962 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-02 06:58:32,098 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 06:58:32,357 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 246 proven. 3 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2019-10-02 06:58:32,542 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 06:58:32,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 9 [2019-10-02 06:58:32,545 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-02 06:58:32,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-02 06:58:32,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-10-02 06:58:32,546 INFO L87 Difference]: Start difference. First operand 5042 states and 6793 transitions. Second operand 9 states. [2019-10-02 06:58:51,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 06:58:51,919 INFO L93 Difference]: Finished difference Result 10053 states and 13632 transitions. [2019-10-02 06:58:51,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-02 06:58:51,919 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 547 [2019-10-02 06:58:51,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 06:58:51,939 INFO L225 Difference]: With dead ends: 10053 [2019-10-02 06:58:51,939 INFO L226 Difference]: Without dead ends: 5043 [2019-10-02 06:58:51,952 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 553 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2019-10-02 06:58:51,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5043 states. [2019-10-02 06:58:52,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5043 to 5043. [2019-10-02 06:58:52,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5043 states. [2019-10-02 06:58:52,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5043 states to 5043 states and 6780 transitions. [2019-10-02 06:58:52,159 INFO L78 Accepts]: Start accepts. Automaton has 5043 states and 6780 transitions. Word has length 547 [2019-10-02 06:58:52,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 06:58:52,159 INFO L475 AbstractCegarLoop]: Abstraction has 5043 states and 6780 transitions. [2019-10-02 06:58:52,159 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-02 06:58:52,159 INFO L276 IsEmpty]: Start isEmpty. Operand 5043 states and 6780 transitions. [2019-10-02 06:58:52,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2019-10-02 06:58:52,179 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 06:58:52,179 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 06:58:52,180 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 06:58:52,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 06:58:52,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1669586213, now seen corresponding path program 1 times [2019-10-02 06:58:52,180 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 06:58:52,180 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 06:58:52,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:58:52,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 06:58:52,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:58:52,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 06:58:53,252 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2019-10-02 06:58:53,253 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 06:58:53,253 INFO L224 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) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 06:58:53,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 06:59:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 06:59:03,762 INFO L256 TraceCheckSpWp]: Trace formula consists of 11982 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-02 06:59:03,774 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 06:59:04,019 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 260 proven. 6 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2019-10-02 06:59:04,131 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 06:59:04,131 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 10 [2019-10-02 06:59:04,133 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-02 06:59:04,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-02 06:59:04,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-02 06:59:04,134 INFO L87 Difference]: Start difference. First operand 5043 states and 6780 transitions. Second operand 10 states. [2019-10-02 06:59:20,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 06:59:20,194 INFO L93 Difference]: Finished difference Result 10054 states and 13605 transitions. [2019-10-02 06:59:20,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-02 06:59:20,194 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 552 [2019-10-02 06:59:20,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 06:59:20,211 INFO L225 Difference]: With dead ends: 10054 [2019-10-02 06:59:20,212 INFO L226 Difference]: Without dead ends: 5044 [2019-10-02 06:59:20,222 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 557 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2019-10-02 06:59:20,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5044 states. [2019-10-02 06:59:20,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5044 to 5044. [2019-10-02 06:59:20,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5044 states. [2019-10-02 06:59:20,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5044 states to 5044 states and 6767 transitions. [2019-10-02 06:59:20,420 INFO L78 Accepts]: Start accepts. Automaton has 5044 states and 6767 transitions. Word has length 552 [2019-10-02 06:59:20,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 06:59:20,420 INFO L475 AbstractCegarLoop]: Abstraction has 5044 states and 6767 transitions. [2019-10-02 06:59:20,420 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-02 06:59:20,421 INFO L276 IsEmpty]: Start isEmpty. Operand 5044 states and 6767 transitions. [2019-10-02 06:59:20,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2019-10-02 06:59:20,431 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 06:59:20,432 INFO L411 BasicCegarLoop]: trace histogram [12, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 06:59:20,432 INFO L418 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 06:59:20,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 06:59:20,433 INFO L82 PathProgramCache]: Analyzing trace with hash -2098447533, now seen corresponding path program 1 times [2019-10-02 06:59:20,433 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 06:59:20,433 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 06:59:20,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:59:20,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 06:59:20,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:59:20,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 06:59:21,395 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2019-10-02 06:59:21,395 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 06:59:21,395 INFO L224 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 [2019-10-02 06:59:22,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 06:59:31,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 06:59:31,832 INFO L256 TraceCheckSpWp]: Trace formula consists of 12002 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-02 06:59:31,843 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 06:59:32,080 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 278 proven. 10 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2019-10-02 06:59:32,184 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 06:59:32,184 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8] total 11 [2019-10-02 06:59:32,185 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-02 06:59:32,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-02 06:59:32,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2019-10-02 06:59:32,186 INFO L87 Difference]: Start difference. First operand 5044 states and 6767 transitions. Second operand 11 states. [2019-10-02 06:59:52,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 06:59:52,035 INFO L93 Difference]: Finished difference Result 10055 states and 13578 transitions. [2019-10-02 06:59:52,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-02 06:59:52,054 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 557 [2019-10-02 06:59:52,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 06:59:52,075 INFO L225 Difference]: With dead ends: 10055 [2019-10-02 06:59:52,075 INFO L226 Difference]: Without dead ends: 5045 [2019-10-02 06:59:52,088 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 577 GetRequests, 561 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2019-10-02 06:59:52,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5045 states. [2019-10-02 06:59:52,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5045 to 5045. [2019-10-02 06:59:52,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5045 states. [2019-10-02 06:59:52,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5045 states to 5045 states and 6754 transitions. [2019-10-02 06:59:52,332 INFO L78 Accepts]: Start accepts. Automaton has 5045 states and 6754 transitions. Word has length 557 [2019-10-02 06:59:52,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 06:59:52,333 INFO L475 AbstractCegarLoop]: Abstraction has 5045 states and 6754 transitions. [2019-10-02 06:59:52,333 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-02 06:59:52,333 INFO L276 IsEmpty]: Start isEmpty. Operand 5045 states and 6754 transitions. [2019-10-02 06:59:52,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 563 [2019-10-02 06:59:52,348 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 06:59:52,348 INFO L411 BasicCegarLoop]: trace histogram [15, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 06:59:52,349 INFO L418 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 06:59:52,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 06:59:52,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1812111405, now seen corresponding path program 1 times [2019-10-02 06:59:52,349 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 06:59:52,349 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 06:59:52,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:59:52,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 06:59:52,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 06:59:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 06:59:53,518 INFO L134 CoverageAnalysis]: Checked inductivity of 712 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2019-10-02 06:59:53,518 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 06:59:53,518 INFO L224 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) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 06:59:54,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 07:00:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:00:03,438 INFO L256 TraceCheckSpWp]: Trace formula consists of 12022 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-02 07:00:03,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 07:00:03,980 INFO L134 CoverageAnalysis]: Checked inductivity of 712 backedges. 300 proven. 15 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2019-10-02 07:00:04,085 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 07:00:04,085 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9] total 12 [2019-10-02 07:00:04,086 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-02 07:00:04,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-02 07:00:04,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2019-10-02 07:00:04,087 INFO L87 Difference]: Start difference. First operand 5045 states and 6754 transitions. Second operand 12 states. [2019-10-02 07:00:22,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 07:00:22,677 INFO L93 Difference]: Finished difference Result 9852 states and 13295 transitions. [2019-10-02 07:00:22,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-02 07:00:22,678 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 562 [2019-10-02 07:00:22,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 07:00:22,698 INFO L225 Difference]: With dead ends: 9852 [2019-10-02 07:00:22,698 INFO L226 Difference]: Without dead ends: 4842 [2019-10-02 07:00:22,711 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 583 GetRequests, 565 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2019-10-02 07:00:22,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4842 states. [2019-10-02 07:00:22,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4842 to 4842. [2019-10-02 07:00:22,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4842 states. [2019-10-02 07:00:22,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4842 states to 4842 states and 6485 transitions. [2019-10-02 07:00:22,925 INFO L78 Accepts]: Start accepts. Automaton has 4842 states and 6485 transitions. Word has length 562 [2019-10-02 07:00:22,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 07:00:22,925 INFO L475 AbstractCegarLoop]: Abstraction has 4842 states and 6485 transitions. [2019-10-02 07:00:22,925 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-02 07:00:22,925 INFO L276 IsEmpty]: Start isEmpty. Operand 4842 states and 6485 transitions. [2019-10-02 07:00:22,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2019-10-02 07:00:22,936 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 07:00:22,937 INFO L411 BasicCegarLoop]: trace histogram [18, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 07:00:22,937 INFO L418 AbstractCegarLoop]: === Iteration 16 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 07:00:22,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 07:00:22,938 INFO L82 PathProgramCache]: Analyzing trace with hash -187682779, now seen corresponding path program 1 times [2019-10-02 07:00:22,938 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 07:00:22,938 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 07:00:22,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:00:22,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 07:00:22,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:00:23,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:00:24,868 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 752 trivial. 0 not checked. [2019-10-02 07:00:24,869 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 07:00:24,869 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-02 07:00:24,870 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-02 07:00:24,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-02 07:00:24,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-02 07:00:24,871 INFO L87 Difference]: Start difference. First operand 4842 states and 6485 transitions. Second operand 9 states. [2019-10-02 07:00:34,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 07:00:34,915 INFO L93 Difference]: Finished difference Result 12045 states and 16150 transitions. [2019-10-02 07:00:34,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-02 07:00:34,916 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 565 [2019-10-02 07:00:34,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 07:00:34,940 INFO L225 Difference]: With dead ends: 12045 [2019-10-02 07:00:34,941 INFO L226 Difference]: Without dead ends: 7341 [2019-10-02 07:00:34,954 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2019-10-02 07:00:34,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7341 states. [2019-10-02 07:00:35,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7341 to 4868. [2019-10-02 07:00:35,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4868 states. [2019-10-02 07:00:35,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4868 states to 4868 states and 6521 transitions. [2019-10-02 07:00:35,178 INFO L78 Accepts]: Start accepts. Automaton has 4868 states and 6521 transitions. Word has length 565 [2019-10-02 07:00:35,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 07:00:35,179 INFO L475 AbstractCegarLoop]: Abstraction has 4868 states and 6521 transitions. [2019-10-02 07:00:35,179 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-02 07:00:35,179 INFO L276 IsEmpty]: Start isEmpty. Operand 4868 states and 6521 transitions. [2019-10-02 07:00:35,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 589 [2019-10-02 07:00:35,189 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 07:00:35,189 INFO L411 BasicCegarLoop]: trace histogram [18, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 07:00:35,189 INFO L418 AbstractCegarLoop]: === Iteration 17 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 07:00:35,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 07:00:35,190 INFO L82 PathProgramCache]: Analyzing trace with hash -144221366, now seen corresponding path program 1 times [2019-10-02 07:00:35,190 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 07:00:35,190 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 07:00:35,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:00:35,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 07:00:35,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:00:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:00:36,196 INFO L134 CoverageAnalysis]: Checked inductivity of 934 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 917 trivial. 0 not checked. [2019-10-02 07:00:36,196 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 07:00:36,196 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-02 07:00:36,197 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-02 07:00:36,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-02 07:00:36,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-02 07:00:36,198 INFO L87 Difference]: Start difference. First operand 4868 states and 6521 transitions. Second operand 6 states. [2019-10-02 07:00:36,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 07:00:36,449 INFO L93 Difference]: Finished difference Result 9620 states and 12920 transitions. [2019-10-02 07:00:36,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-02 07:00:36,449 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 588 [2019-10-02 07:00:36,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 07:00:36,470 INFO L225 Difference]: With dead ends: 9620 [2019-10-02 07:00:36,471 INFO L226 Difference]: Without dead ends: 4890 [2019-10-02 07:00:36,483 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-02 07:00:36,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4890 states. [2019-10-02 07:00:36,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4890 to 4890. [2019-10-02 07:00:36,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4890 states. [2019-10-02 07:00:36,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4890 states to 4890 states and 6549 transitions. [2019-10-02 07:00:36,733 INFO L78 Accepts]: Start accepts. Automaton has 4890 states and 6549 transitions. Word has length 588 [2019-10-02 07:00:36,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 07:00:36,734 INFO L475 AbstractCegarLoop]: Abstraction has 4890 states and 6549 transitions. [2019-10-02 07:00:36,734 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-02 07:00:36,735 INFO L276 IsEmpty]: Start isEmpty. Operand 4890 states and 6549 transitions. [2019-10-02 07:00:36,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2019-10-02 07:00:36,745 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 07:00:36,746 INFO L411 BasicCegarLoop]: trace histogram [18, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 07:00:36,746 INFO L418 AbstractCegarLoop]: === Iteration 18 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 07:00:36,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 07:00:36,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1260148012, now seen corresponding path program 1 times [2019-10-02 07:00:36,747 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 07:00:36,747 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 07:00:36,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:00:36,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 07:00:36,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:00:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:00:39,441 INFO L134 CoverageAnalysis]: Checked inductivity of 939 backedges. 17 proven. 70 refuted. 0 times theorem prover too weak. 852 trivial. 0 not checked. [2019-10-02 07:00:39,442 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 07:00:39,442 INFO L224 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 [2019-10-02 07:00:40,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 07:00:50,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:00:50,370 INFO L256 TraceCheckSpWp]: Trace formula consists of 12298 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-02 07:00:50,383 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 07:00:50,978 INFO L134 CoverageAnalysis]: Checked inductivity of 939 backedges. 326 proven. 21 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2019-10-02 07:00:51,072 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 07:00:51,073 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 10] total 28 [2019-10-02 07:00:51,074 INFO L454 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-02 07:00:51,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-02 07:00:51,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2019-10-02 07:00:51,075 INFO L87 Difference]: Start difference. First operand 4890 states and 6549 transitions. Second operand 28 states. [2019-10-02 07:00:52,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 07:00:52,632 INFO L93 Difference]: Finished difference Result 10185 states and 13818 transitions. [2019-10-02 07:00:52,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-10-02 07:00:52,633 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 616 [2019-10-02 07:00:52,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 07:00:52,669 INFO L225 Difference]: With dead ends: 10185 [2019-10-02 07:00:52,670 INFO L226 Difference]: Without dead ends: 5335 [2019-10-02 07:00:52,693 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 653 GetRequests, 610 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=187, Invalid=1793, Unknown=0, NotChecked=0, Total=1980 [2019-10-02 07:00:52,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5335 states. [2019-10-02 07:00:52,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5335 to 4973. [2019-10-02 07:00:52,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4973 states. [2019-10-02 07:00:52,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4973 states to 4973 states and 6662 transitions. [2019-10-02 07:00:52,917 INFO L78 Accepts]: Start accepts. Automaton has 4973 states and 6662 transitions. Word has length 616 [2019-10-02 07:00:52,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 07:00:52,918 INFO L475 AbstractCegarLoop]: Abstraction has 4973 states and 6662 transitions. [2019-10-02 07:00:52,918 INFO L476 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-02 07:00:52,918 INFO L276 IsEmpty]: Start isEmpty. Operand 4973 states and 6662 transitions. [2019-10-02 07:00:52,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2019-10-02 07:00:52,929 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 07:00:52,930 INFO L411 BasicCegarLoop]: trace histogram [20, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 07:00:52,930 INFO L418 AbstractCegarLoop]: === Iteration 19 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 07:00:52,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 07:00:52,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1297300510, now seen corresponding path program 1 times [2019-10-02 07:00:52,930 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 07:00:52,931 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 07:00:52,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:00:52,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 07:00:52,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:00:53,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:00:55,118 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 17 proven. 67 refuted. 0 times theorem prover too weak. 889 trivial. 0 not checked. [2019-10-02 07:00:55,119 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 07:00:55,119 INFO L224 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 [2019-10-02 07:00:55,869 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 07:01:05,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:01:05,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 12394 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-02 07:01:05,406 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 07:01:05,863 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 348 proven. 28 refuted. 0 times theorem prover too weak. 597 trivial. 0 not checked. [2019-10-02 07:01:05,956 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 07:01:05,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 11] total 29 [2019-10-02 07:01:05,957 INFO L454 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-10-02 07:01:05,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-10-02 07:01:05,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2019-10-02 07:01:05,958 INFO L87 Difference]: Start difference. First operand 4973 states and 6662 transitions. Second operand 29 states. [2019-10-02 07:01:07,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 07:01:07,531 INFO L93 Difference]: Finished difference Result 10358 states and 14063 transitions. [2019-10-02 07:01:07,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2019-10-02 07:01:07,532 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 636 [2019-10-02 07:01:07,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 07:01:07,551 INFO L225 Difference]: With dead ends: 10358 [2019-10-02 07:01:07,551 INFO L226 Difference]: Without dead ends: 5422 [2019-10-02 07:01:07,568 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 674 GetRequests, 629 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=214, Invalid=1948, Unknown=0, NotChecked=0, Total=2162 [2019-10-02 07:01:07,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5422 states. [2019-10-02 07:01:07,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5422 to 4980. [2019-10-02 07:01:07,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4980 states. [2019-10-02 07:01:07,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4980 states to 4980 states and 6669 transitions. [2019-10-02 07:01:07,757 INFO L78 Accepts]: Start accepts. Automaton has 4980 states and 6669 transitions. Word has length 636 [2019-10-02 07:01:07,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 07:01:07,757 INFO L475 AbstractCegarLoop]: Abstraction has 4980 states and 6669 transitions. [2019-10-02 07:01:07,757 INFO L476 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-10-02 07:01:07,757 INFO L276 IsEmpty]: Start isEmpty. Operand 4980 states and 6669 transitions. [2019-10-02 07:01:07,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2019-10-02 07:01:07,770 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 07:01:07,771 INFO L411 BasicCegarLoop]: trace histogram [22, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 07:01:07,771 INFO L418 AbstractCegarLoop]: === Iteration 20 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 07:01:07,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 07:01:07,772 INFO L82 PathProgramCache]: Analyzing trace with hash -795538220, now seen corresponding path program 1 times [2019-10-02 07:01:07,772 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 07:01:07,772 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 07:01:07,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:01:07,783 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 07:01:07,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:01:08,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:01:09,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1006 backedges. 17 proven. 37 refuted. 0 times theorem prover too weak. 952 trivial. 0 not checked. [2019-10-02 07:01:09,189 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 07:01:09,189 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 07:01:09,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 07:01:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:01:18,800 INFO L256 TraceCheckSpWp]: Trace formula consists of 12457 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-02 07:01:18,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 07:01:19,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1006 backedges. 237 proven. 36 refuted. 0 times theorem prover too weak. 733 trivial. 0 not checked. [2019-10-02 07:01:19,308 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 07:01:19,308 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 12] total 15 [2019-10-02 07:01:19,310 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-02 07:01:19,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-02 07:01:19,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2019-10-02 07:01:19,311 INFO L87 Difference]: Start difference. First operand 4980 states and 6669 transitions. Second operand 15 states. [2019-10-02 07:01:19,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 07:01:19,904 INFO L93 Difference]: Finished difference Result 9928 states and 13510 transitions. [2019-10-02 07:01:19,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-10-02 07:01:19,904 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 645 [2019-10-02 07:01:19,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 07:01:19,918 INFO L225 Difference]: With dead ends: 9928 [2019-10-02 07:01:19,919 INFO L226 Difference]: Without dead ends: 5076 [2019-10-02 07:01:19,927 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 659 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2019-10-02 07:01:19,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5076 states. [2019-10-02 07:01:20,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5076 to 5010. [2019-10-02 07:01:20,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5010 states. [2019-10-02 07:01:20,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5010 states to 5010 states and 6699 transitions. [2019-10-02 07:01:20,114 INFO L78 Accepts]: Start accepts. Automaton has 5010 states and 6699 transitions. Word has length 645 [2019-10-02 07:01:20,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 07:01:20,115 INFO L475 AbstractCegarLoop]: Abstraction has 5010 states and 6699 transitions. [2019-10-02 07:01:20,115 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-02 07:01:20,115 INFO L276 IsEmpty]: Start isEmpty. Operand 5010 states and 6699 transitions. [2019-10-02 07:01:20,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 647 [2019-10-02 07:01:20,128 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 07:01:20,128 INFO L411 BasicCegarLoop]: trace histogram [23, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 07:01:20,129 INFO L418 AbstractCegarLoop]: === Iteration 21 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 07:01:20,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 07:01:20,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1578885922, now seen corresponding path program 1 times [2019-10-02 07:01:20,129 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 07:01:20,129 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 07:01:20,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:01:20,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 07:01:20,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:01:20,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:01:21,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1047 backedges. 17 proven. 54 refuted. 0 times theorem prover too weak. 976 trivial. 0 not checked. [2019-10-02 07:01:21,645 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 07:01:21,645 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 07:01:22,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 07:01:31,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:01:31,644 INFO L256 TraceCheckSpWp]: Trace formula consists of 12426 conjuncts, 12 conjunts are in the unsatisfiable core [2019-10-02 07:01:31,659 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 07:01:32,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1047 backedges. 253 proven. 45 refuted. 0 times theorem prover too weak. 749 trivial. 0 not checked. [2019-10-02 07:01:32,502 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 07:01:32,502 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2019-10-02 07:01:32,503 INFO L454 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-02 07:01:32,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-02 07:01:32,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=462, Unknown=0, NotChecked=0, Total=552 [2019-10-02 07:01:32,504 INFO L87 Difference]: Start difference. First operand 5010 states and 6699 transitions. Second operand 24 states. [2019-10-02 07:01:33,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 07:01:33,618 INFO L93 Difference]: Finished difference Result 10271 states and 13910 transitions. [2019-10-02 07:01:33,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-10-02 07:01:33,618 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 646 [2019-10-02 07:01:33,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 07:01:33,637 INFO L225 Difference]: With dead ends: 10271 [2019-10-02 07:01:33,637 INFO L226 Difference]: Without dead ends: 5389 [2019-10-02 07:01:33,649 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 672 GetRequests, 636 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=236, Invalid=1170, Unknown=0, NotChecked=0, Total=1406 [2019-10-02 07:01:33,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5389 states. [2019-10-02 07:01:33,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5389 to 5276. [2019-10-02 07:01:33,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5276 states. [2019-10-02 07:01:33,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5276 states to 5276 states and 7101 transitions. [2019-10-02 07:01:33,939 INFO L78 Accepts]: Start accepts. Automaton has 5276 states and 7101 transitions. Word has length 646 [2019-10-02 07:01:33,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 07:01:33,940 INFO L475 AbstractCegarLoop]: Abstraction has 5276 states and 7101 transitions. [2019-10-02 07:01:33,940 INFO L476 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-02 07:01:33,940 INFO L276 IsEmpty]: Start isEmpty. Operand 5276 states and 7101 transitions. [2019-10-02 07:01:33,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2019-10-02 07:01:33,953 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 07:01:33,954 INFO L411 BasicCegarLoop]: trace histogram [24, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 07:01:33,954 INFO L418 AbstractCegarLoop]: === Iteration 22 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 07:01:33,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 07:01:33,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1753113664, now seen corresponding path program 1 times [2019-10-02 07:01:33,955 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 07:01:33,955 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 07:01:33,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:01:33,970 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 07:01:33,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:01:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:01:35,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 17 proven. 51 refuted. 0 times theorem prover too weak. 996 trivial. 0 not checked. [2019-10-02 07:01:35,931 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 07:01:35,931 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 07:01:36,675 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 07:01:45,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:01:46,112 INFO L256 TraceCheckSpWp]: Trace formula consists of 12516 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-02 07:01:46,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 07:01:46,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 269 proven. 55 refuted. 0 times theorem prover too weak. 740 trivial. 0 not checked. [2019-10-02 07:01:46,901 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 07:01:46,902 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 25 [2019-10-02 07:01:46,903 INFO L454 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-10-02 07:01:46,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-10-02 07:01:46,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=498, Unknown=0, NotChecked=0, Total=600 [2019-10-02 07:01:46,903 INFO L87 Difference]: Start difference. First operand 5276 states and 7101 transitions. Second operand 25 states. [2019-10-02 07:01:48,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 07:01:48,081 INFO L93 Difference]: Finished difference Result 10738 states and 14628 transitions. [2019-10-02 07:01:48,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2019-10-02 07:01:48,084 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 665 [2019-10-02 07:01:48,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 07:01:48,106 INFO L225 Difference]: With dead ends: 10738 [2019-10-02 07:01:48,106 INFO L226 Difference]: Without dead ends: 5590 [2019-10-02 07:01:48,119 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 692 GetRequests, 654 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=272, Invalid=1288, Unknown=0, NotChecked=0, Total=1560 [2019-10-02 07:01:48,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5590 states. [2019-10-02 07:01:48,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5590 to 5256. [2019-10-02 07:01:48,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5256 states. [2019-10-02 07:01:48,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5256 states to 5256 states and 7069 transitions. [2019-10-02 07:01:48,415 INFO L78 Accepts]: Start accepts. Automaton has 5256 states and 7069 transitions. Word has length 665 [2019-10-02 07:01:48,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 07:01:48,416 INFO L475 AbstractCegarLoop]: Abstraction has 5256 states and 7069 transitions. [2019-10-02 07:01:48,416 INFO L476 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-10-02 07:01:48,416 INFO L276 IsEmpty]: Start isEmpty. Operand 5256 states and 7069 transitions. [2019-10-02 07:01:48,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 675 [2019-10-02 07:01:48,428 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 07:01:48,429 INFO L411 BasicCegarLoop]: trace histogram [36, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 07:01:48,429 INFO L418 AbstractCegarLoop]: === Iteration 23 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 07:01:48,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 07:01:48,432 INFO L82 PathProgramCache]: Analyzing trace with hash -641570848, now seen corresponding path program 1 times [2019-10-02 07:01:48,432 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 07:01:48,433 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 07:01:48,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:01:48,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 07:01:48,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:01:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:01:52,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1511 backedges. 17 proven. 66 refuted. 0 times theorem prover too weak. 1428 trivial. 0 not checked. [2019-10-02 07:01:52,476 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 07:01:52,476 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 07:01:53,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 07:02:01,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:02:02,005 INFO L256 TraceCheckSpWp]: Trace formula consists of 12590 conjuncts, 14 conjunts are in the unsatisfiable core [2019-10-02 07:02:02,017 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 07:02:02,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1511 backedges. 630 proven. 66 refuted. 0 times theorem prover too weak. 815 trivial. 0 not checked. [2019-10-02 07:02:02,925 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 07:02:02,926 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15] total 30 [2019-10-02 07:02:02,927 INFO L454 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-10-02 07:02:02,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-10-02 07:02:02,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=747, Unknown=0, NotChecked=0, Total=870 [2019-10-02 07:02:02,929 INFO L87 Difference]: Start difference. First operand 5256 states and 7069 transitions. Second operand 30 states. [2019-10-02 07:02:04,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 07:02:04,321 INFO L93 Difference]: Finished difference Result 10573 states and 14340 transitions. [2019-10-02 07:02:04,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-02 07:02:04,321 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 674 [2019-10-02 07:02:04,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 07:02:04,338 INFO L225 Difference]: With dead ends: 10573 [2019-10-02 07:02:04,338 INFO L226 Difference]: Without dead ends: 5445 [2019-10-02 07:02:04,348 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 710 GetRequests, 663 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=331, Invalid=2021, Unknown=0, NotChecked=0, Total=2352 [2019-10-02 07:02:04,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2019-10-02 07:02:04,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5340. [2019-10-02 07:02:04,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5340 states. [2019-10-02 07:02:04,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5340 states to 5340 states and 7183 transitions. [2019-10-02 07:02:04,640 INFO L78 Accepts]: Start accepts. Automaton has 5340 states and 7183 transitions. Word has length 674 [2019-10-02 07:02:04,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 07:02:04,641 INFO L475 AbstractCegarLoop]: Abstraction has 5340 states and 7183 transitions. [2019-10-02 07:02:04,641 INFO L476 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-10-02 07:02:04,641 INFO L276 IsEmpty]: Start isEmpty. Operand 5340 states and 7183 transitions. [2019-10-02 07:02:04,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 679 [2019-10-02 07:02:04,654 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 07:02:04,654 INFO L411 BasicCegarLoop]: trace histogram [26, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 07:02:04,655 INFO L418 AbstractCegarLoop]: === Iteration 24 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 07:02:04,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 07:02:04,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1132646808, now seen corresponding path program 1 times [2019-10-02 07:02:04,655 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 07:02:04,655 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 07:02:04,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:02:04,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 07:02:04,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:02:05,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:02:05,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 17 proven. 37 refuted. 0 times theorem prover too weak. 1071 trivial. 0 not checked. [2019-10-02 07:02:05,943 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 07:02:05,944 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 07:02:06,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 07:02:15,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:02:15,607 INFO L256 TraceCheckSpWp]: Trace formula consists of 12583 conjuncts, 15 conjunts are in the unsatisfiable core [2019-10-02 07:02:15,617 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 07:02:15,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 301 proven. 78 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2019-10-02 07:02:16,092 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 07:02:16,092 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 16] total 20 [2019-10-02 07:02:16,094 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-02 07:02:16,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-02 07:02:16,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2019-10-02 07:02:16,095 INFO L87 Difference]: Start difference. First operand 5340 states and 7183 transitions. Second operand 20 states. [2019-10-02 07:02:16,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 07:02:16,714 INFO L93 Difference]: Finished difference Result 10732 states and 14666 transitions. [2019-10-02 07:02:16,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-10-02 07:02:16,714 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 678 [2019-10-02 07:02:16,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 07:02:16,728 INFO L225 Difference]: With dead ends: 10732 [2019-10-02 07:02:16,728 INFO L226 Difference]: Without dead ends: 5520 [2019-10-02 07:02:16,738 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 698 GetRequests, 665 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=327, Invalid=795, Unknown=0, NotChecked=0, Total=1122 [2019-10-02 07:02:16,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5520 states. [2019-10-02 07:02:16,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5520 to 5394. [2019-10-02 07:02:16,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5394 states. [2019-10-02 07:02:16,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5394 states to 5394 states and 7261 transitions. [2019-10-02 07:02:16,966 INFO L78 Accepts]: Start accepts. Automaton has 5394 states and 7261 transitions. Word has length 678 [2019-10-02 07:02:16,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 07:02:16,967 INFO L475 AbstractCegarLoop]: Abstraction has 5394 states and 7261 transitions. [2019-10-02 07:02:16,967 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-10-02 07:02:16,968 INFO L276 IsEmpty]: Start isEmpty. Operand 5394 states and 7261 transitions. [2019-10-02 07:02:16,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 682 [2019-10-02 07:02:16,979 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 07:02:16,980 INFO L411 BasicCegarLoop]: trace histogram [27, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 07:02:16,980 INFO L418 AbstractCegarLoop]: === Iteration 25 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 07:02:16,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 07:02:16,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1124724081, now seen corresponding path program 1 times [2019-10-02 07:02:16,981 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 07:02:16,981 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 07:02:16,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:02:16,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 07:02:16,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:02:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:02:22,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1137 trivial. 0 not checked. [2019-10-02 07:02:22,877 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 07:02:22,877 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 07:02:22,878 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 07:02:22,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 07:02:22,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 07:02:22,878 INFO L87 Difference]: Start difference. First operand 5394 states and 7261 transitions. Second operand 3 states. [2019-10-02 07:02:23,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 07:02:23,108 INFO L93 Difference]: Finished difference Result 10690 states and 14434 transitions. [2019-10-02 07:02:23,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 07:02:23,109 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 681 [2019-10-02 07:02:23,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 07:02:23,120 INFO L225 Difference]: With dead ends: 10690 [2019-10-02 07:02:23,120 INFO L226 Difference]: Without dead ends: 5436 [2019-10-02 07:02:23,127 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 07:02:23,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5436 states. [2019-10-02 07:02:23,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5436 to 5402. [2019-10-02 07:02:23,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5402 states. [2019-10-02 07:02:23,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5402 states to 5402 states and 7271 transitions. [2019-10-02 07:02:23,322 INFO L78 Accepts]: Start accepts. Automaton has 5402 states and 7271 transitions. Word has length 681 [2019-10-02 07:02:23,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 07:02:23,322 INFO L475 AbstractCegarLoop]: Abstraction has 5402 states and 7271 transitions. [2019-10-02 07:02:23,322 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 07:02:23,322 INFO L276 IsEmpty]: Start isEmpty. Operand 5402 states and 7271 transitions. [2019-10-02 07:02:23,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 684 [2019-10-02 07:02:23,334 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 07:02:23,335 INFO L411 BasicCegarLoop]: trace histogram [27, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 07:02:23,335 INFO L418 AbstractCegarLoop]: === Iteration 26 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 07:02:23,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 07:02:23,336 INFO L82 PathProgramCache]: Analyzing trace with hash 524666642, now seen corresponding path program 1 times [2019-10-02 07:02:23,336 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 07:02:23,336 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 07:02:23,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:02:23,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 07:02:23,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:02:25,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:02:25,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1137 trivial. 0 not checked. [2019-10-02 07:02:25,956 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 07:02:25,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 07:02:25,956 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 07:02:25,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 07:02:25,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 07:02:25,957 INFO L87 Difference]: Start difference. First operand 5402 states and 7271 transitions. Second operand 3 states. [2019-10-02 07:02:26,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 07:02:26,094 INFO L93 Difference]: Finished difference Result 10682 states and 14418 transitions. [2019-10-02 07:02:26,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 07:02:26,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 683 [2019-10-02 07:02:26,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 07:02:26,109 INFO L225 Difference]: With dead ends: 10682 [2019-10-02 07:02:26,109 INFO L226 Difference]: Without dead ends: 5420 [2019-10-02 07:02:26,119 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 07:02:26,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5420 states. [2019-10-02 07:02:26,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5420 to 5404. [2019-10-02 07:02:26,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5404 states. [2019-10-02 07:02:26,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5404 states to 5404 states and 7273 transitions. [2019-10-02 07:02:26,295 INFO L78 Accepts]: Start accepts. Automaton has 5404 states and 7273 transitions. Word has length 683 [2019-10-02 07:02:26,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 07:02:26,295 INFO L475 AbstractCegarLoop]: Abstraction has 5404 states and 7273 transitions. [2019-10-02 07:02:26,295 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 07:02:26,295 INFO L276 IsEmpty]: Start isEmpty. Operand 5404 states and 7273 transitions. [2019-10-02 07:02:26,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 686 [2019-10-02 07:02:26,305 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 07:02:26,306 INFO L411 BasicCegarLoop]: trace histogram [27, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 07:02:26,306 INFO L418 AbstractCegarLoop]: === Iteration 27 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 07:02:26,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 07:02:26,306 INFO L82 PathProgramCache]: Analyzing trace with hash 467655441, now seen corresponding path program 1 times [2019-10-02 07:02:26,306 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 07:02:26,306 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 07:02:26,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:02:26,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 07:02:26,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:02:30,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:02:31,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1137 trivial. 0 not checked. [2019-10-02 07:02:31,425 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 07:02:31,425 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 07:02:31,425 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 07:02:31,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 07:02:31,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 07:02:31,426 INFO L87 Difference]: Start difference. First operand 5404 states and 7273 transitions. Second operand 3 states. [2019-10-02 07:02:31,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 07:02:31,650 INFO L93 Difference]: Finished difference Result 10664 states and 14392 transitions. [2019-10-02 07:02:31,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 07:02:31,651 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 685 [2019-10-02 07:02:31,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 07:02:31,668 INFO L225 Difference]: With dead ends: 10664 [2019-10-02 07:02:31,668 INFO L226 Difference]: Without dead ends: 5400 [2019-10-02 07:02:31,679 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 07:02:31,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5400 states. [2019-10-02 07:02:31,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5400 to 5400. [2019-10-02 07:02:31,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5400 states. [2019-10-02 07:02:31,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5400 states to 5400 states and 7265 transitions. [2019-10-02 07:02:31,861 INFO L78 Accepts]: Start accepts. Automaton has 5400 states and 7265 transitions. Word has length 685 [2019-10-02 07:02:31,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 07:02:31,861 INFO L475 AbstractCegarLoop]: Abstraction has 5400 states and 7265 transitions. [2019-10-02 07:02:31,862 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 07:02:31,862 INFO L276 IsEmpty]: Start isEmpty. Operand 5400 states and 7265 transitions. [2019-10-02 07:02:31,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 686 [2019-10-02 07:02:31,873 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 07:02:31,874 INFO L411 BasicCegarLoop]: trace histogram [27, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 07:02:31,874 INFO L418 AbstractCegarLoop]: === Iteration 28 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 07:02:31,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 07:02:31,875 INFO L82 PathProgramCache]: Analyzing trace with hash -624810671, now seen corresponding path program 1 times [2019-10-02 07:02:31,875 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 07:02:31,875 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 07:02:31,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:02:31,885 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 07:02:31,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:02:42,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:02:42,874 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 245 proven. 91 refuted. 0 times theorem prover too weak. 818 trivial. 0 not checked. [2019-10-02 07:02:42,874 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 07:02:42,874 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 07:02:43,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 07:02:54,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:02:54,404 INFO L256 TraceCheckSpWp]: Trace formula consists of 12615 conjuncts, 16 conjunts are in the unsatisfiable core [2019-10-02 07:02:54,417 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 07:02:54,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 317 proven. 91 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2019-10-02 07:02:54,954 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 07:02:54,954 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2019-10-02 07:02:54,955 INFO L454 AbstractCegarLoop]: Interpolant automaton has 32 states [2019-10-02 07:02:54,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2019-10-02 07:02:54,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=388, Invalid=604, Unknown=0, NotChecked=0, Total=992 [2019-10-02 07:02:54,956 INFO L87 Difference]: Start difference. First operand 5400 states and 7265 transitions. Second operand 32 states. [2019-10-02 07:02:55,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 07:02:55,918 INFO L93 Difference]: Finished difference Result 10771 states and 14586 transitions. [2019-10-02 07:02:55,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-10-02 07:02:55,918 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 685 [2019-10-02 07:02:55,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 07:02:55,931 INFO L225 Difference]: With dead ends: 10771 [2019-10-02 07:02:55,931 INFO L226 Difference]: Without dead ends: 5499 [2019-10-02 07:02:55,941 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 729 GetRequests, 671 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 958 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1349, Invalid=2191, Unknown=0, NotChecked=0, Total=3540 [2019-10-02 07:02:55,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5499 states. [2019-10-02 07:02:56,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5499 to 5442. [2019-10-02 07:02:56,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5442 states. [2019-10-02 07:02:56,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5442 states to 5442 states and 7309 transitions. [2019-10-02 07:02:56,357 INFO L78 Accepts]: Start accepts. Automaton has 5442 states and 7309 transitions. Word has length 685 [2019-10-02 07:02:56,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 07:02:56,358 INFO L475 AbstractCegarLoop]: Abstraction has 5442 states and 7309 transitions. [2019-10-02 07:02:56,358 INFO L476 AbstractCegarLoop]: Interpolant automaton has 32 states. [2019-10-02 07:02:56,358 INFO L276 IsEmpty]: Start isEmpty. Operand 5442 states and 7309 transitions. [2019-10-02 07:02:56,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 687 [2019-10-02 07:02:56,370 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 07:02:56,370 INFO L411 BasicCegarLoop]: trace histogram [28, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 07:02:56,371 INFO L418 AbstractCegarLoop]: === Iteration 29 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 07:02:56,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 07:02:56,371 INFO L82 PathProgramCache]: Analyzing trace with hash -7173443, now seen corresponding path program 2 times [2019-10-02 07:02:56,371 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 07:02:56,371 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 07:02:56,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:02:56,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 07:02:56,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:03:01,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:03:02,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1184 backedges. 261 proven. 105 refuted. 0 times theorem prover too weak. 818 trivial. 0 not checked. [2019-10-02 07:03:02,322 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 07:03:02,322 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 07:03:03,106 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-10-02 07:03:19,110 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-02 07:03:19,110 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 07:03:19,937 INFO L256 TraceCheckSpWp]: Trace formula consists of 12621 conjuncts, 17 conjunts are in the unsatisfiable core [2019-10-02 07:03:19,949 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 07:03:20,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1184 backedges. 333 proven. 105 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2019-10-02 07:03:20,705 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 07:03:20,706 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2019-10-02 07:03:20,707 INFO L454 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-10-02 07:03:20,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-10-02 07:03:20,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=438, Invalid=684, Unknown=0, NotChecked=0, Total=1122 [2019-10-02 07:03:20,707 INFO L87 Difference]: Start difference. First operand 5442 states and 7309 transitions. Second operand 34 states. [2019-10-02 07:03:21,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 07:03:21,768 INFO L93 Difference]: Finished difference Result 10834 states and 14652 transitions. [2019-10-02 07:03:21,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2019-10-02 07:03:21,769 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 686 [2019-10-02 07:03:21,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 07:03:21,781 INFO L225 Difference]: With dead ends: 10834 [2019-10-02 07:03:21,781 INFO L226 Difference]: Without dead ends: 5516 [2019-10-02 07:03:21,792 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 733 GetRequests, 671 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1102 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1535, Invalid=2497, Unknown=0, NotChecked=0, Total=4032 [2019-10-02 07:03:21,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5516 states. [2019-10-02 07:03:22,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5516 to 5450. [2019-10-02 07:03:22,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5450 states. [2019-10-02 07:03:22,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 7317 transitions. [2019-10-02 07:03:22,102 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 7317 transitions. Word has length 686 [2019-10-02 07:03:22,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 07:03:22,102 INFO L475 AbstractCegarLoop]: Abstraction has 5450 states and 7317 transitions. [2019-10-02 07:03:22,103 INFO L476 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-10-02 07:03:22,103 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 7317 transitions. [2019-10-02 07:03:22,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 688 [2019-10-02 07:03:22,120 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 07:03:22,120 INFO L411 BasicCegarLoop]: trace histogram [29, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 07:03:22,120 INFO L418 AbstractCegarLoop]: === Iteration 30 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 07:03:22,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 07:03:22,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1959711441, now seen corresponding path program 3 times [2019-10-02 07:03:22,121 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 07:03:22,121 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 07:03:22,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:03:22,136 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 07:03:22,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:03:49,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:03:50,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1215 backedges. 277 proven. 120 refuted. 0 times theorem prover too weak. 818 trivial. 0 not checked. [2019-10-02 07:03:50,544 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 07:03:50,545 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 07:03:51,299 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-10-02 07:05:58,488 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2019-10-02 07:05:58,489 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 07:05:59,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 12627 conjuncts, 18 conjunts are in the unsatisfiable core [2019-10-02 07:05:59,679 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 07:06:00,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1215 backedges. 349 proven. 120 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2019-10-02 07:06:00,282 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 07:06:00,282 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 36 [2019-10-02 07:06:00,283 INFO L454 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-10-02 07:06:00,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-10-02 07:06:00,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=491, Invalid=769, Unknown=0, NotChecked=0, Total=1260 [2019-10-02 07:06:00,284 INFO L87 Difference]: Start difference. First operand 5450 states and 7317 transitions. Second operand 36 states. [2019-10-02 07:06:01,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 07:06:01,411 INFO L93 Difference]: Finished difference Result 10859 states and 14680 transitions. [2019-10-02 07:06:01,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2019-10-02 07:06:01,412 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 687 [2019-10-02 07:06:01,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 07:06:01,427 INFO L225 Difference]: With dead ends: 10859 [2019-10-02 07:06:01,428 INFO L226 Difference]: Without dead ends: 5533 [2019-10-02 07:06:01,438 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 737 GetRequests, 671 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1256 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1733, Invalid=2823, Unknown=0, NotChecked=0, Total=4556 [2019-10-02 07:06:01,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5533 states. [2019-10-02 07:06:01,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5533 to 5458. [2019-10-02 07:06:01,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5458 states. [2019-10-02 07:06:01,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 7325 transitions. [2019-10-02 07:06:01,605 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 7325 transitions. Word has length 687 [2019-10-02 07:06:01,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 07:06:01,605 INFO L475 AbstractCegarLoop]: Abstraction has 5458 states and 7325 transitions. [2019-10-02 07:06:01,605 INFO L476 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-10-02 07:06:01,605 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 7325 transitions. [2019-10-02 07:06:01,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 689 [2019-10-02 07:06:01,612 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 07:06:01,613 INFO L411 BasicCegarLoop]: trace histogram [30, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 07:06:01,613 INFO L418 AbstractCegarLoop]: === Iteration 31 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 07:06:01,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 07:06:01,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1491366595, now seen corresponding path program 4 times [2019-10-02 07:06:01,614 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 07:06:01,614 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 07:06:01,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:06:01,625 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 07:06:01,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:06:07,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:06:08,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1247 backedges. 293 proven. 136 refuted. 0 times theorem prover too weak. 818 trivial. 0 not checked. [2019-10-02 07:06:08,283 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 07:06:08,283 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 07:06:09,055 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-10-02 07:06:17,881 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-10-02 07:06:17,881 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 07:06:18,178 INFO L256 TraceCheckSpWp]: Trace formula consists of 12633 conjuncts, 19 conjunts are in the unsatisfiable core [2019-10-02 07:06:18,189 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 07:06:18,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1247 backedges. 365 proven. 136 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2019-10-02 07:06:18,895 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 07:06:18,896 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 38 [2019-10-02 07:06:18,897 INFO L454 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-10-02 07:06:18,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-10-02 07:06:18,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=547, Invalid=859, Unknown=0, NotChecked=0, Total=1406 [2019-10-02 07:06:18,898 INFO L87 Difference]: Start difference. First operand 5458 states and 7325 transitions. Second operand 38 states. [2019-10-02 07:06:20,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 07:06:20,178 INFO L93 Difference]: Finished difference Result 10884 states and 14708 transitions. [2019-10-02 07:06:20,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2019-10-02 07:06:20,179 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 688 [2019-10-02 07:06:20,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 07:06:20,193 INFO L225 Difference]: With dead ends: 10884 [2019-10-02 07:06:20,193 INFO L226 Difference]: Without dead ends: 5550 [2019-10-02 07:06:20,203 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 741 GetRequests, 671 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1420 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1943, Invalid=3169, Unknown=0, NotChecked=0, Total=5112 [2019-10-02 07:06:20,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5550 states. [2019-10-02 07:06:20,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5550 to 5466. [2019-10-02 07:06:20,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5466 states. [2019-10-02 07:06:20,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 7333 transitions. [2019-10-02 07:06:20,375 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 7333 transitions. Word has length 688 [2019-10-02 07:06:20,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 07:06:20,375 INFO L475 AbstractCegarLoop]: Abstraction has 5466 states and 7333 transitions. [2019-10-02 07:06:20,375 INFO L476 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-10-02 07:06:20,375 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 7333 transitions. [2019-10-02 07:06:20,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 690 [2019-10-02 07:06:20,383 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 07:06:20,383 INFO L411 BasicCegarLoop]: trace histogram [31, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 07:06:20,383 INFO L418 AbstractCegarLoop]: === Iteration 32 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 07:06:20,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 07:06:20,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1100603311, now seen corresponding path program 5 times [2019-10-02 07:06:20,384 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 07:06:20,384 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 07:06:20,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:06:20,393 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 07:06:20,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:06:27,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:06:28,562 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 309 proven. 153 refuted. 0 times theorem prover too weak. 818 trivial. 0 not checked. [2019-10-02 07:06:28,563 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 07:06:28,563 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 07:06:29,358 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-10-02 07:06:45,221 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2019-10-02 07:06:45,222 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 07:06:45,241 INFO L256 TraceCheckSpWp]: Trace formula consists of 1564 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-02 07:06:45,255 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 07:06:45,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 1150 trivial. 0 not checked. [2019-10-02 07:06:45,550 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 07:06:45,551 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [21] total 24 [2019-10-02 07:06:45,551 INFO L454 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-02 07:06:45,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-02 07:06:45,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=337, Unknown=0, NotChecked=0, Total=552 [2019-10-02 07:06:45,552 INFO L87 Difference]: Start difference. First operand 5466 states and 7333 transitions. Second operand 24 states. [2019-10-02 07:06:46,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 07:06:46,235 INFO L93 Difference]: Finished difference Result 10846 states and 14748 transitions. [2019-10-02 07:06:46,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-02 07:06:46,236 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 689 [2019-10-02 07:06:46,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 07:06:46,249 INFO L225 Difference]: With dead ends: 10846 [2019-10-02 07:06:46,249 INFO L226 Difference]: Without dead ends: 5438 [2019-10-02 07:06:46,259 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 712 GetRequests, 688 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=240, Invalid=410, Unknown=0, NotChecked=0, Total=650 [2019-10-02 07:06:46,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5438 states. [2019-10-02 07:06:46,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5438 to 5438. [2019-10-02 07:06:46,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5438 states. [2019-10-02 07:06:46,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5438 states to 5438 states and 7281 transitions. [2019-10-02 07:06:46,539 INFO L78 Accepts]: Start accepts. Automaton has 5438 states and 7281 transitions. Word has length 689 [2019-10-02 07:06:46,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 07:06:46,539 INFO L475 AbstractCegarLoop]: Abstraction has 5438 states and 7281 transitions. [2019-10-02 07:06:46,539 INFO L476 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-02 07:06:46,539 INFO L276 IsEmpty]: Start isEmpty. Operand 5438 states and 7281 transitions. [2019-10-02 07:06:46,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 692 [2019-10-02 07:06:46,547 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 07:06:46,547 INFO L411 BasicCegarLoop]: trace histogram [32, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 07:06:46,548 INFO L418 AbstractCegarLoop]: === Iteration 33 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 07:06:46,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 07:06:46,548 INFO L82 PathProgramCache]: Analyzing trace with hash 890137171, now seen corresponding path program 1 times [2019-10-02 07:06:46,548 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 07:06:46,548 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 07:06:46,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:06:46,558 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 07:06:46,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:06:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:06:49,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1314 backedges. 325 proven. 171 refuted. 0 times theorem prover too weak. 818 trivial. 0 not checked. [2019-10-02 07:06:49,934 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 07:06:49,934 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 07:06:50,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 07:07:00,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:07:01,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 12652 conjuncts, 21 conjunts are in the unsatisfiable core [2019-10-02 07:07:01,129 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 07:07:01,634 INFO L134 CoverageAnalysis]: Checked inductivity of 1314 backedges. 397 proven. 171 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2019-10-02 07:07:01,743 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 07:07:01,743 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 42 [2019-10-02 07:07:01,744 INFO L454 AbstractCegarLoop]: Interpolant automaton has 42 states [2019-10-02 07:07:01,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2019-10-02 07:07:01,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=668, Invalid=1054, Unknown=0, NotChecked=0, Total=1722 [2019-10-02 07:07:01,745 INFO L87 Difference]: Start difference. First operand 5438 states and 7281 transitions. Second operand 42 states. [2019-10-02 07:07:03,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 07:07:03,153 INFO L93 Difference]: Finished difference Result 10880 states and 14668 transitions. [2019-10-02 07:07:03,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2019-10-02 07:07:03,153 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 691 [2019-10-02 07:07:03,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 07:07:03,167 INFO L225 Difference]: With dead ends: 10880 [2019-10-02 07:07:03,167 INFO L226 Difference]: Without dead ends: 5554 [2019-10-02 07:07:03,177 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 750 GetRequests, 672 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1778 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2399, Invalid=3921, Unknown=0, NotChecked=0, Total=6320 [2019-10-02 07:07:03,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5554 states. [2019-10-02 07:07:03,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5554 to 5452. [2019-10-02 07:07:03,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5452 states. [2019-10-02 07:07:03,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5452 states to 5452 states and 7295 transitions. [2019-10-02 07:07:03,351 INFO L78 Accepts]: Start accepts. Automaton has 5452 states and 7295 transitions. Word has length 691 [2019-10-02 07:07:03,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 07:07:03,351 INFO L475 AbstractCegarLoop]: Abstraction has 5452 states and 7295 transitions. [2019-10-02 07:07:03,351 INFO L476 AbstractCegarLoop]: Interpolant automaton has 42 states. [2019-10-02 07:07:03,351 INFO L276 IsEmpty]: Start isEmpty. Operand 5452 states and 7295 transitions. [2019-10-02 07:07:03,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2019-10-02 07:07:03,358 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 07:07:03,359 INFO L411 BasicCegarLoop]: trace histogram [33, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 07:07:03,359 INFO L418 AbstractCegarLoop]: === Iteration 34 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 07:07:03,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 07:07:03,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1537208641, now seen corresponding path program 2 times [2019-10-02 07:07:03,359 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 07:07:03,360 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 07:07:03,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:07:03,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 07:07:03,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:07:21,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:07:21,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1349 backedges. 341 proven. 190 refuted. 0 times theorem prover too weak. 818 trivial. 0 not checked. [2019-10-02 07:07:21,998 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 07:07:21,998 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 07:07:22,786 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-10-02 07:07:38,630 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-02 07:07:38,630 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 07:07:39,360 INFO L256 TraceCheckSpWp]: Trace formula consists of 12658 conjuncts, 22 conjunts are in the unsatisfiable core [2019-10-02 07:07:39,378 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 07:07:39,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1349 backedges. 413 proven. 190 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2019-10-02 07:07:40,106 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 07:07:40,106 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 44 [2019-10-02 07:07:40,107 INFO L454 AbstractCegarLoop]: Interpolant automaton has 44 states [2019-10-02 07:07:40,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2019-10-02 07:07:40,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=733, Invalid=1159, Unknown=0, NotChecked=0, Total=1892 [2019-10-02 07:07:40,108 INFO L87 Difference]: Start difference. First operand 5452 states and 7295 transitions. Second operand 44 states. [2019-10-02 07:07:41,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 07:07:41,697 INFO L93 Difference]: Finished difference Result 10899 states and 14684 transitions. [2019-10-02 07:07:41,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2019-10-02 07:07:41,698 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 692 [2019-10-02 07:07:41,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 07:07:41,709 INFO L225 Difference]: With dead ends: 10899 [2019-10-02 07:07:41,709 INFO L226 Difference]: Without dead ends: 5571 [2019-10-02 07:07:41,717 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 754 GetRequests, 672 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1972 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2645, Invalid=4327, Unknown=0, NotChecked=0, Total=6972 [2019-10-02 07:07:41,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5571 states. [2019-10-02 07:07:41,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5571 to 5460. [2019-10-02 07:07:41,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5460 states. [2019-10-02 07:07:41,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5460 states to 5460 states and 7303 transitions. [2019-10-02 07:07:41,879 INFO L78 Accepts]: Start accepts. Automaton has 5460 states and 7303 transitions. Word has length 692 [2019-10-02 07:07:41,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 07:07:41,880 INFO L475 AbstractCegarLoop]: Abstraction has 5460 states and 7303 transitions. [2019-10-02 07:07:41,880 INFO L476 AbstractCegarLoop]: Interpolant automaton has 44 states. [2019-10-02 07:07:41,880 INFO L276 IsEmpty]: Start isEmpty. Operand 5460 states and 7303 transitions. [2019-10-02 07:07:41,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 694 [2019-10-02 07:07:41,887 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 07:07:41,888 INFO L411 BasicCegarLoop]: trace histogram [34, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 07:07:41,888 INFO L418 AbstractCegarLoop]: === Iteration 35 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 07:07:41,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 07:07:41,889 INFO L82 PathProgramCache]: Analyzing trace with hash 524482515, now seen corresponding path program 3 times [2019-10-02 07:07:41,889 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 07:07:41,889 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 07:07:41,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:07:41,901 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 07:07:41,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 07:07:51,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 07:07:52,723 INFO L134 CoverageAnalysis]: Checked inductivity of 1385 backedges. 357 proven. 210 refuted. 0 times theorem prover too weak. 818 trivial. 0 not checked. [2019-10-02 07:07:52,723 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 07:07:52,723 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 07:07:53,473 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2