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 0.1.24-112bae1 [2019-09-08 16:16:24,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 16:16:24,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 16:16:24,749 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 16:16:24,750 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 16:16:24,752 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 16:16:24,754 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 16:16:24,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 16:16:24,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 16:16:24,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 16:16:24,774 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 16:16:24,775 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 16:16:24,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 16:16:24,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 16:16:24,779 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 16:16:24,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 16:16:24,783 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 16:16:24,785 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 16:16:24,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 16:16:24,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 16:16:24,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 16:16:24,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 16:16:24,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 16:16:24,793 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 16:16:24,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-08 16:16:24,795 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-08 16:16:24,796 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-08 16:16:24,796 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-08 16:16:24,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-08 16:16:24,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-08 16:16:24,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 16:16:24,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 16:16:24,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 16:16:24,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 16:16:24,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 16:16:24,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 16:16:24,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 16:16:24,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 16:16:24,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 16:16:24,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 16:16:24,804 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 16:16:24,805 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-08 16:16:24,820 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 16:16:24,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 16:16:24,821 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 16:16:24,821 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 16:16:24,822 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 16:16:24,822 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 16:16:24,822 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 16:16:24,822 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 16:16:24,823 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 16:16:24,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 16:16:24,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 16:16:24,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 16:16:24,823 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 16:16:24,824 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 16:16:24,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 16:16:24,824 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 16:16:24,824 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 16:16:24,824 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 16:16:24,825 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 16:16:24,825 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 16:16:24,825 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 16:16:24,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 16:16:24,825 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 16:16:24,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 16:16:24,826 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 16:16:24,826 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 16:16:24,826 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 16:16:24,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 16:16:24,827 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 16:16:24,860 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 16:16:24,879 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 16:16:24,883 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 16:16:24,884 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 16:16:24,884 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 16:16:24,885 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--libertas_tf--libertas_tf.ko-entry_point.cil.out.i [2019-09-08 16:16:24,952 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fb8c5540/bc02d25259994ae1a71934aa69c8451a/FLAGabebf252c [2019-09-08 16:16:25,852 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 16:16:25,853 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--libertas_tf--libertas_tf.ko-entry_point.cil.out.i [2019-09-08 16:16:25,900 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fb8c5540/bc02d25259994ae1a71934aa69c8451a/FLAGabebf252c [2019-09-08 16:16:26,310 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fb8c5540/bc02d25259994ae1a71934aa69c8451a [2019-09-08 16:16:26,322 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 16:16:26,323 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 16:16:26,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 16:16:26,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 16:16:26,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 16:16:26,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 04:16:26" (1/1) ... [2019-09-08 16:16:26,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@113cd643 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:16:26, skipping insertion in model container [2019-09-08 16:16:26,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 04:16:26" (1/1) ... [2019-09-08 16:16:26,341 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 16:16:26,539 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 16:16:29,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 16:16:29,089 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 16:16:29,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 16:16:29,941 INFO L192 MainTranslator]: Completed translation [2019-09-08 16:16:29,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:16:29 WrapperNode [2019-09-08 16:16:29,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 16:16:29,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 16:16:29,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 16:16:29,944 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 16:16:29,959 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:16:29" (1/1) ... [2019-09-08 16:16:29,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:16:29" (1/1) ... [2019-09-08 16:16:30,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:16:29" (1/1) ... [2019-09-08 16:16:30,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:16:29" (1/1) ... [2019-09-08 16:16:30,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:16:29" (1/1) ... [2019-09-08 16:16:30,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:16:29" (1/1) ... [2019-09-08 16:16:30,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:16:29" (1/1) ... [2019-09-08 16:16:30,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 16:16:30,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 16:16:30,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 16:16:30,480 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 16:16:30,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:16:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 16:16:30,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 16:16:30,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 16:16:30,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~X~~u16~0~TO~int [2019-09-08 16:16:30,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-09-08 16:16:30,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2019-09-08 16:16:30,550 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-09-08 16:16:30,550 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-09-08 16:16:30,550 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2019-09-08 16:16:30,550 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-09-08 16:16:30,550 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2019-09-08 16:16:30,551 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2019-09-08 16:16:30,551 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-09-08 16:16:30,551 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2019-09-08 16:16:30,551 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2019-09-08 16:16:30,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_head_init [2019-09-08 16:16:30,552 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2019-09-08 16:16:30,552 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2019-09-08 16:16:30,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-08 16:16:30,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-09-08 16:16:30,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successfull_zalloc [2019-09-08 16:16:30,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-09-08 16:16:30,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-08 16:16:30,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-09-08 16:16:30,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-08 16:16:30,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-08 16:16:30,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-08 16:16:30,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-09-08 16:16:30,556 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2019-09-08 16:16:30,557 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2019-09-08 16:16:30,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_has_a4 [2019-09-08 16:16:30,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_data_qos [2019-09-08 16:16:30,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_qos_ctl [2019-09-08 16:16:30,557 INFO L138 BoogieDeclarations]: Found implementation of procedure set_wiphy_dev [2019-09-08 16:16:30,557 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2019-09-08 16:16:30,557 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_RXCB [2019-09-08 16:16:30,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_tx_info_clear_status [2019-09-08 16:16:30,558 INFO L138 BoogieDeclarations]: Found implementation of procedure SET_IEEE80211_DEV [2019-09-08 16:16:30,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2019-09-08 16:16:30,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_beacon_get [2019-09-08 16:16:30,558 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_deb_hex [2019-09-08 16:16:30,559 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_cmd_work [2019-09-08 16:16:30,560 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_setup_firmware [2019-09-08 16:16:30,560 INFO L138 BoogieDeclarations]: Found implementation of procedure command_timer_fn [2019-09-08 16:16:30,560 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_init_adapter [2019-09-08 16:16:30,560 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_free_adapter [2019-09-08 16:16:30,560 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_op_tx [2019-09-08 16:16:30,561 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_tx_work [2019-09-08 16:16:30,561 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_op_start [2019-09-08 16:16:30,561 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_op_stop [2019-09-08 16:16:30,561 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_op_add_interface [2019-09-08 16:16:30,561 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_op_remove_interface [2019-09-08 16:16:30,561 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_op_config [2019-09-08 16:16:30,561 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_op_prepare_multicast [2019-09-08 16:16:30,562 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_op_configure_filter [2019-09-08 16:16:30,562 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_op_bss_info_changed [2019-09-08 16:16:30,562 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_op_get_survey [2019-09-08 16:16:30,562 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_rx [2019-09-08 16:16:30,562 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_add_card [2019-09-08 16:16:30,562 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_remove_card [2019-09-08 16:16:30,563 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_send_tx_feedback [2019-09-08 16:16:30,563 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_bcn_sent [2019-09-08 16:16:30,564 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_init_module [2019-09-08 16:16:30,564 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_exit_module [2019-09-08 16:16:30,564 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2019-09-08 16:16:30,564 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_init_1 [2019-09-08 16:16:30,564 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2019-09-08 16:16:30,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_ieee80211_ops_2 [2019-09-08 16:16:30,565 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_1 [2019-09-08 16:16:30,566 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2019-09-08 16:16:30,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2019-09-08 16:16:30,567 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2019-09-08 16:16:30,567 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 16:16:30,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2019-09-08 16:16:30,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2019-09-08 16:16:30,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2019-09-08 16:16:30,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2019-09-08 16:16:30,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2019-09-08 16:16:30,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_12 [2019-09-08 16:16:30,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_dequeue_13 [2019-09-08 16:16:30,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_dequeue_14 [2019-09-08 16:16:30,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_15 [2019-09-08 16:16:30,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_16 [2019-09-08 16:16:30,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_17 [2019-09-08 16:16:30,574 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-09-08 16:16:30,575 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2019-09-08 16:16:30,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-09-08 16:16:30,576 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-09-08 16:16:30,577 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-09-08 16:16:30,577 INFO L138 BoogieDeclarations]: Found implementation of procedure SET_IEEE80211_PERM_ADDR [2019-09-08 16:16:30,577 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_cmd_copyback [2019-09-08 16:16:30,579 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_geo_init [2019-09-08 16:16:30,579 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_update_hw_spec [2019-09-08 16:16:30,579 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_set_channel [2019-09-08 16:16:30,579 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_beacon_set [2019-09-08 16:16:30,579 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_beacon_ctrl [2019-09-08 16:16:30,579 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_queue_cmd [2019-09-08 16:16:30,580 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_submit_command [2019-09-08 16:16:30,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbtf_cleanup_and_insert_cmd [2019-09-08 16:16:30,580 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_cleanup_and_insert_cmd [2019-09-08 16:16:30,580 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_complete_command [2019-09-08 16:16:30,580 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_cmd_set_mac_multicast_addr [2019-09-08 16:16:30,580 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_set_mode [2019-09-08 16:16:30,580 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_set_bssid [2019-09-08 16:16:30,581 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_set_mac_address [2019-09-08 16:16:30,581 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_set_radio_control [2019-09-08 16:16:30,581 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_set_mac_control [2019-09-08 16:16:30,581 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_allocate_cmd_buffer [2019-09-08 16:16:30,581 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_free_cmd_buffer [2019-09-08 16:16:30,581 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_get_cmd_ctrl_node [2019-09-08 16:16:30,582 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_execute_next_command [2019-09-08 16:16:30,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbtf_cmd_async [2019-09-08 16:16:30,582 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_cmd_async [2019-09-08 16:16:30,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbtf_cmd [2019-09-08 16:16:30,582 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_cmd_response_rx [2019-09-08 16:16:30,583 INFO L138 BoogieDeclarations]: Found implementation of procedure lbtf_process_rx_command [2019-09-08 16:16:30,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2019-09-08 16:16:30,583 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-09-08 16:16:30,583 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-09-08 16:16:30,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_24 [2019-09-08 16:16:30,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_25 [2019-09-08 16:16:30,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_26 [2019-09-08 16:16:30,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_27 [2019-09-08 16:16:30,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_30 [2019-09-08 16:16:30,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_31 [2019-09-08 16:16:30,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_32 [2019-09-08 16:16:30,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2019-09-08 16:16:30,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-09-08 16:16:30,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2019-09-08 16:16:30,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2019-09-08 16:16:30,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2019-09-08 16:16:30,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-09-08 16:16:30,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-09-08 16:16:30,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-09-08 16:16:30,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-09-08 16:16:30,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2019-09-08 16:16:30,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-08 16:16:30,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2019-09-08 16:16:30,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2019-09-08 16:16:30,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2019-09-08 16:16:30,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2019-09-08 16:16:30,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2019-09-08 16:16:30,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-08 16:16:30,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_workqueue_key [2019-09-08 16:16:30,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2019-09-08 16:16:30,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-09-08 16:16:30,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2019-09-08 16:16:30,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-09-08 16:16:30,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2019-09-08 16:16:30,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-09-08 16:16:30,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-09-08 16:16:30,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-09-08 16:16:30,601 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2019-09-08 16:16:30,601 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-09-08 16:16:30,601 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2019-09-08 16:16:30,601 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-09-08 16:16:30,601 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2019-09-08 16:16:30,601 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2019-09-08 16:16:30,601 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2019-09-08 16:16:30,602 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-09-08 16:16:30,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_alloc_hw [2019-09-08 16:16:30,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_beacon_get_tim [2019-09-08 16:16:30,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2019-09-08 16:16:30,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_buffered_bc [2019-09-08 16:16:30,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_register_hw [2019-09-08 16:16:30,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_rx_irqsafe [2019-09-08 16:16:30,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_stop_queues [2019-09-08 16:16:30,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_tx_status_irqsafe [2019-09-08 16:16:30,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_unregister_hw [2019-09-08 16:16:30,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_wake_queues [2019-09-08 16:16:30,603 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-09-08 16:16:30,603 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2019-09-08 16:16:30,603 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2019-09-08 16:16:30,603 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-09-08 16:16:30,604 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-09-08 16:16:30,604 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2019-09-08 16:16:30,604 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2019-09-08 16:16:30,604 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2019-09-08 16:16:30,604 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-09-08 16:16:30,604 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2019-09-08 16:16:30,604 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-09-08 16:16:30,604 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2019-09-08 16:16:30,605 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2019-09-08 16:16:30,605 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2019-09-08 16:16:30,605 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-09-08 16:16:30,605 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-08 16:16:30,605 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-08 16:16:30,606 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-08 16:16:30,606 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-09-08 16:16:30,606 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-09-08 16:16:30,606 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2019-09-08 16:16:30,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 16:16:30,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-08 16:16:30,606 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-09-08 16:16:30,607 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2019-09-08 16:16:30,607 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-09-08 16:16:30,607 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-09-08 16:16:30,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-08 16:16:30,607 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-09-08 16:16:30,608 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-09-08 16:16:30,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-08 16:16:30,608 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-09-08 16:16:30,608 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-09-08 16:16:30,608 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-09-08 16:16:30,608 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-08 16:16:30,608 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2019-09-08 16:16:30,609 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2019-09-08 16:16:30,609 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2019-09-08 16:16:30,609 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-09-08 16:16:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2019-09-08 16:16:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-09-08 16:16:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2019-09-08 16:16:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-09-08 16:16:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-09-08 16:16:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2019-09-08 16:16:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2019-09-08 16:16:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-09-08 16:16:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-09-08 16:16:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-09-08 16:16:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2019-09-08 16:16:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_12 [2019-09-08 16:16:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_16 [2019-09-08 16:16:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2019-09-08 16:16:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_workqueue_key [2019-09-08 16:16:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2019-09-08 16:16:30,613 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2019-09-08 16:16:30,613 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2019-09-08 16:16:30,613 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2019-09-08 16:16:30,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2019-09-08 16:16:30,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2019-09-08 16:16:30,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2019-09-08 16:16:30,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2019-09-08 16:16:30,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_15 [2019-09-08 16:16:30,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_17 [2019-09-08 16:16:30,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2019-09-08 16:16:30,614 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2019-09-08 16:16:30,614 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_head_init [2019-09-08 16:16:30,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 16:16:30,614 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2019-09-08 16:16:30,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 16:16:30,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 16:16:30,614 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2019-09-08 16:16:30,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_dequeue_13 [2019-09-08 16:16:30,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_dequeue_14 [2019-09-08 16:16:30,615 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2019-09-08 16:16:30,615 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2019-09-08 16:16:30,615 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2019-09-08 16:16:30,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 16:16:30,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2019-09-08 16:16:30,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2019-09-08 16:16:30,616 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-08 16:16:30,616 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-08 16:16:30,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-08 16:16:30,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2019-09-08 16:16:30,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-08 16:16:30,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-08 16:16:30,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-08 16:16:30,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-08 16:16:30,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-08 16:16:30,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-08 16:16:30,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-09-08 16:16:30,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-09-08 16:16:30,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successfull_zalloc [2019-09-08 16:16:30,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-09-08 16:16:30,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-08 16:16:30,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-09-08 16:16:30,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-08 16:16:30,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-08 16:16:30,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-09-08 16:16:30,623 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2019-09-08 16:16:30,623 INFO L130 BoogieDeclarations]: Found specification of procedure timer_init_1 [2019-09-08 16:16:30,623 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2019-09-08 16:16:30,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_ieee80211_ops_2 [2019-09-08 16:16:30,624 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_1 [2019-09-08 16:16:30,624 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2019-09-08 16:16:30,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2019-09-08 16:16:30,625 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2019-09-08 16:16:30,625 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2019-09-08 16:16:30,625 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2019-09-08 16:16:30,625 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2019-09-08 16:16:30,625 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_has_a4 [2019-09-08 16:16:30,625 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_data_qos [2019-09-08 16:16:30,625 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_qos_ctl [2019-09-08 16:16:30,625 INFO L130 BoogieDeclarations]: Found specification of procedure set_wiphy_dev [2019-09-08 16:16:30,626 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2019-09-08 16:16:30,626 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_RXCB [2019-09-08 16:16:30,626 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_tx_info_clear_status [2019-09-08 16:16:30,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-08 16:16:30,626 INFO L130 BoogieDeclarations]: Found specification of procedure SET_IEEE80211_DEV [2019-09-08 16:16:30,626 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2019-09-08 16:16:30,626 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_alloc_hw [2019-09-08 16:16:30,626 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_register_hw [2019-09-08 16:16:30,627 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_unregister_hw [2019-09-08 16:16:30,627 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2019-09-08 16:16:30,627 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_rx_irqsafe [2019-09-08 16:16:30,627 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_tx_status_irqsafe [2019-09-08 16:16:30,627 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_beacon_get_tim [2019-09-08 16:16:30,627 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_beacon_get [2019-09-08 16:16:30,627 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_buffered_bc [2019-09-08 16:16:30,627 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_stop_queues [2019-09-08 16:16:30,628 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_wake_queues [2019-09-08 16:16:30,628 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_deb_hex [2019-09-08 16:16:30,628 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_set_mac_control [2019-09-08 16:16:30,628 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_free_cmd_buffer [2019-09-08 16:16:30,628 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_allocate_cmd_buffer [2019-09-08 16:16:30,628 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_execute_next_command [2019-09-08 16:16:30,628 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_set_radio_control [2019-09-08 16:16:30,628 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_update_hw_spec [2019-09-08 16:16:30,629 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_cmd_set_mac_multicast_addr [2019-09-08 16:16:30,629 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_set_mode [2019-09-08 16:16:30,629 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_set_bssid [2019-09-08 16:16:30,629 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_set_mac_address [2019-09-08 16:16:30,629 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_set_channel [2019-09-08 16:16:30,629 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_beacon_set [2019-09-08 16:16:30,629 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_beacon_ctrl [2019-09-08 16:16:30,629 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_process_rx_command [2019-09-08 16:16:30,629 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_complete_command [2019-09-08 16:16:30,630 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_add_card [2019-09-08 16:16:30,630 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_remove_card [2019-09-08 16:16:30,630 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_rx [2019-09-08 16:16:30,630 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_send_tx_feedback [2019-09-08 16:16:30,630 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_bcn_sent [2019-09-08 16:16:30,630 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_cmd_work [2019-09-08 16:16:30,631 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_setup_firmware [2019-09-08 16:16:30,631 INFO L130 BoogieDeclarations]: Found specification of procedure command_timer_fn [2019-09-08 16:16:30,632 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_init_adapter [2019-09-08 16:16:30,632 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_free_adapter [2019-09-08 16:16:30,632 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_op_tx [2019-09-08 16:16:30,632 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_tx_work [2019-09-08 16:16:30,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-09-08 16:16:30,632 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~X~~u16~0~TO~int [2019-09-08 16:16:30,632 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_op_start [2019-09-08 16:16:30,632 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-09-08 16:16:30,633 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_op_stop [2019-09-08 16:16:30,633 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_op_add_interface [2019-09-08 16:16:30,633 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_op_remove_interface [2019-09-08 16:16:30,633 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_op_config [2019-09-08 16:16:30,633 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_op_prepare_multicast [2019-09-08 16:16:30,633 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_op_configure_filter [2019-09-08 16:16:30,633 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_op_bss_info_changed [2019-09-08 16:16:30,633 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_op_get_survey [2019-09-08 16:16:30,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2019-09-08 16:16:30,634 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_init_module [2019-09-08 16:16:30,634 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_exit_module [2019-09-08 16:16:30,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-08 16:16:30,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-08 16:16:30,634 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 16:16:30,634 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2019-09-08 16:16:30,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-09-08 16:16:30,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-09-08 16:16:30,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-09-08 16:16:30,635 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-09-08 16:16:30,635 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-09-08 16:16:30,635 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2019-09-08 16:16:30,635 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2019-09-08 16:16:30,635 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-09-08 16:16:30,635 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-09-08 16:16:30,636 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-09-08 16:16:30,636 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2019-09-08 16:16:30,636 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-09-08 16:16:30,636 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-09-08 16:16:30,636 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-09-08 16:16:30,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_32 [2019-09-08 16:16:30,636 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2019-09-08 16:16:30,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_31 [2019-09-08 16:16:30,637 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2019-09-08 16:16:30,637 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-08 16:16:30,637 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-09-08 16:16:30,637 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-09-08 16:16:30,637 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-09-08 16:16:30,637 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-09-08 16:16:30,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_25 [2019-09-08 16:16:30,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_26 [2019-09-08 16:16:30,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_27 [2019-09-08 16:16:30,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_30 [2019-09-08 16:16:30,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_24 [2019-09-08 16:16:30,638 INFO L130 BoogieDeclarations]: Found specification of procedure SET_IEEE80211_PERM_ADDR [2019-09-08 16:16:30,638 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_cmd_response_rx [2019-09-08 16:16:30,638 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_cmd_async [2019-09-08 16:16:30,638 INFO L130 BoogieDeclarations]: Found specification of procedure __lbtf_cmd [2019-09-08 16:16:30,638 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_cmd_copyback [2019-09-08 16:16:30,638 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_get_cmd_ctrl_node [2019-09-08 16:16:30,638 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_geo_init [2019-09-08 16:16:30,639 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_queue_cmd [2019-09-08 16:16:30,639 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_submit_command [2019-09-08 16:16:30,639 INFO L130 BoogieDeclarations]: Found specification of procedure __lbtf_cleanup_and_insert_cmd [2019-09-08 16:16:30,639 INFO L130 BoogieDeclarations]: Found specification of procedure lbtf_cleanup_and_insert_cmd [2019-09-08 16:16:30,639 INFO L130 BoogieDeclarations]: Found specification of procedure __lbtf_cmd_async [2019-09-08 16:16:30,639 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2019-09-08 16:16:30,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2019-09-08 16:16:30,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-09-08 16:16:30,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2019-09-08 16:16:30,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2019-09-08 16:16:30,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2019-09-08 16:16:30,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-09-08 16:16:30,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2019-09-08 16:16:30,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2019-09-08 16:16:30,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2019-09-08 16:16:30,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2019-09-08 16:16:30,641 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-08 16:16:30,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-08 16:16:30,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-09-08 16:16:30,642 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-08 16:16:30,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 16:16:30,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-08 16:16:30,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-08 16:16:30,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 16:16:30,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-09-08 16:16:30,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-09-08 16:16:30,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-09-08 16:16:30,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-09-08 16:16:32,316 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-08 16:17:14,115 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 16:17:14,116 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-08 16:17:14,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 04:17:14 BoogieIcfgContainer [2019-09-08 16:17:14,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 16:17:14,120 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 16:17:14,120 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 16:17:14,124 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 16:17:14,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 04:16:26" (1/3) ... [2019-09-08 16:17:14,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc3e7fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 04:17:14, skipping insertion in model container [2019-09-08 16:17:14,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:16:29" (2/3) ... [2019-09-08 16:17:14,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc3e7fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 04:17:14, skipping insertion in model container [2019-09-08 16:17:14,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 04:17:14" (3/3) ... [2019-09-08 16:17:14,130 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 [2019-09-08 16:17:14,141 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 16:17:14,153 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 16:17:14,175 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 16:17:14,223 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 16:17:14,224 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 16:17:14,225 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 16:17:14,226 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 16:17:14,226 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 16:17:14,226 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 16:17:14,226 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 16:17:14,226 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 16:17:14,226 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 16:17:14,292 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states. [2019-09-08 16:17:14,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-09-08 16:17:14,320 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:17:14,321 INFO L399 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] [2019-09-08 16:17:14,323 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:17:14,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:17:14,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1632586924, now seen corresponding path program 1 times [2019-09-08 16:17:14,331 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:17:14,332 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:17:14,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:17:14,442 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:17:14,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:17:15,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:17:16,111 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2019-09-08 16:17:16,113 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:17:16,114 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 16:17:16,118 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 16:17:16,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 16:17:16,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-08 16:17:16,135 INFO L87 Difference]: Start difference. First operand 1991 states. Second operand 6 states. [2019-09-08 16:17:27,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:17:27,873 INFO L93 Difference]: Finished difference Result 3626 states and 4997 transitions. [2019-09-08 16:17:27,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-08 16:17:27,875 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 117 [2019-09-08 16:17:27,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:17:27,927 INFO L225 Difference]: With dead ends: 3626 [2019-09-08 16:17:27,927 INFO L226 Difference]: Without dead ends: 2375 [2019-09-08 16:17:27,945 INFO L628 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 [2019-09-08 16:17:27,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2375 states. [2019-09-08 16:17:28,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2375 to 2375. [2019-09-08 16:17:28,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2375 states. [2019-09-08 16:17:28,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2375 states to 2375 states and 3250 transitions. [2019-09-08 16:17:28,190 INFO L78 Accepts]: Start accepts. Automaton has 2375 states and 3250 transitions. Word has length 117 [2019-09-08 16:17:28,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:17:28,191 INFO L475 AbstractCegarLoop]: Abstraction has 2375 states and 3250 transitions. [2019-09-08 16:17:28,191 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 16:17:28,191 INFO L276 IsEmpty]: Start isEmpty. Operand 2375 states and 3250 transitions. [2019-09-08 16:17:28,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-09-08 16:17:28,212 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:17:28,212 INFO L399 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] [2019-09-08 16:17:28,213 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:17:28,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:17:28,213 INFO L82 PathProgramCache]: Analyzing trace with hash -291592071, now seen corresponding path program 1 times [2019-09-08 16:17:28,214 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:17:28,214 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:17:28,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:17:28,220 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:17:28,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:17:28,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:17:29,174 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2019-09-08 16:17:29,174 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:17:29,175 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:17:29,177 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:17:29,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:17:29,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:17:29,177 INFO L87 Difference]: Start difference. First operand 2375 states and 3250 transitions. Second operand 3 states. [2019-09-08 16:17:35,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:17:35,595 INFO L93 Difference]: Finished difference Result 4989 states and 6817 transitions. [2019-09-08 16:17:35,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:17:35,596 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 227 [2019-09-08 16:17:35,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:17:35,631 INFO L225 Difference]: With dead ends: 4989 [2019-09-08 16:17:35,631 INFO L226 Difference]: Without dead ends: 2646 [2019-09-08 16:17:35,644 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:17:35,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2646 states. [2019-09-08 16:17:35,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2646 to 2634. [2019-09-08 16:17:35,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2634 states. [2019-09-08 16:17:35,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2634 states to 2634 states and 3593 transitions. [2019-09-08 16:17:35,843 INFO L78 Accepts]: Start accepts. Automaton has 2634 states and 3593 transitions. Word has length 227 [2019-09-08 16:17:35,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:17:35,845 INFO L475 AbstractCegarLoop]: Abstraction has 2634 states and 3593 transitions. [2019-09-08 16:17:35,845 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:17:35,845 INFO L276 IsEmpty]: Start isEmpty. Operand 2634 states and 3593 transitions. [2019-09-08 16:17:35,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2019-09-08 16:17:35,869 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:17:35,870 INFO L399 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] [2019-09-08 16:17:35,870 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:17:35,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:17:35,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1692811639, now seen corresponding path program 1 times [2019-09-08 16:17:35,871 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:17:35,871 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:17:35,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:17:35,882 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:17:35,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:17:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:17:36,736 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2019-09-08 16:17:36,737 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:17:36,737 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:17:36,739 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:17:36,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:17:36,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:17:36,740 INFO L87 Difference]: Start difference. First operand 2634 states and 3593 transitions. Second operand 3 states. [2019-09-08 16:17:46,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:17:46,540 INFO L93 Difference]: Finished difference Result 6861 states and 9393 transitions. [2019-09-08 16:17:46,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:17:46,541 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 270 [2019-09-08 16:17:46,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:17:46,584 INFO L225 Difference]: With dead ends: 6861 [2019-09-08 16:17:46,584 INFO L226 Difference]: Without dead ends: 4277 [2019-09-08 16:17:46,600 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:17:46,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4277 states. [2019-09-08 16:17:46,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4277 to 4265. [2019-09-08 16:17:46,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4265 states. [2019-09-08 16:17:46,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4265 states to 4265 states and 5808 transitions. [2019-09-08 16:17:46,905 INFO L78 Accepts]: Start accepts. Automaton has 4265 states and 5808 transitions. Word has length 270 [2019-09-08 16:17:46,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:17:46,906 INFO L475 AbstractCegarLoop]: Abstraction has 4265 states and 5808 transitions. [2019-09-08 16:17:46,906 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:17:46,906 INFO L276 IsEmpty]: Start isEmpty. Operand 4265 states and 5808 transitions. [2019-09-08 16:17:46,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2019-09-08 16:17:46,926 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:17:46,926 INFO L399 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] [2019-09-08 16:17:46,927 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:17:46,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:17:46,927 INFO L82 PathProgramCache]: Analyzing trace with hash -609292287, now seen corresponding path program 1 times [2019-09-08 16:17:46,928 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:17:46,928 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:17:46,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:17:46,933 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:17:46,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:17:47,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:17:47,736 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2019-09-08 16:17:47,736 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:17:47,737 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:17:47,737 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:17:47,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:17:47,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:17:47,738 INFO L87 Difference]: Start difference. First operand 4265 states and 5808 transitions. Second operand 3 states. [2019-09-08 16:17:47,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:17:47,842 INFO L93 Difference]: Finished difference Result 6426 states and 8764 transitions. [2019-09-08 16:17:47,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:17:47,843 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 270 [2019-09-08 16:17:47,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:17:47,874 INFO L225 Difference]: With dead ends: 6426 [2019-09-08 16:17:47,874 INFO L226 Difference]: Without dead ends: 4273 [2019-09-08 16:17:47,887 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:17:47,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4273 states. [2019-09-08 16:17:48,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4273 to 4269. [2019-09-08 16:17:48,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4269 states. [2019-09-08 16:17:48,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4269 states to 4269 states and 5812 transitions. [2019-09-08 16:17:48,123 INFO L78 Accepts]: Start accepts. Automaton has 4269 states and 5812 transitions. Word has length 270 [2019-09-08 16:17:48,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:17:48,125 INFO L475 AbstractCegarLoop]: Abstraction has 4269 states and 5812 transitions. [2019-09-08 16:17:48,125 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:17:48,125 INFO L276 IsEmpty]: Start isEmpty. Operand 4269 states and 5812 transitions. [2019-09-08 16:17:48,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2019-09-08 16:17:48,148 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:17:48,149 INFO L399 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] [2019-09-08 16:17:48,149 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:17:48,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:17:48,150 INFO L82 PathProgramCache]: Analyzing trace with hash 27450114, now seen corresponding path program 1 times [2019-09-08 16:17:48,150 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:17:48,150 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:17:48,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:17:48,159 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:17:48,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:17:48,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:17:48,986 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2019-09-08 16:17:48,987 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:17:48,987 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:17:48,988 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:17:48,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:17:48,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:17:48,989 INFO L87 Difference]: Start difference. First operand 4269 states and 5812 transitions. Second operand 3 states. [2019-09-08 16:17:59,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:17:59,908 INFO L93 Difference]: Finished difference Result 8458 states and 11522 transitions. [2019-09-08 16:17:59,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:17:59,908 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 272 [2019-09-08 16:17:59,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:17:59,938 INFO L225 Difference]: With dead ends: 8458 [2019-09-08 16:17:59,938 INFO L226 Difference]: Without dead ends: 4148 [2019-09-08 16:17:59,959 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:18:00,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4148 states. [2019-09-08 16:18:00,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4148 to 4148. [2019-09-08 16:18:00,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4148 states. [2019-09-08 16:18:00,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4148 states to 4148 states and 5635 transitions. [2019-09-08 16:18:00,314 INFO L78 Accepts]: Start accepts. Automaton has 4148 states and 5635 transitions. Word has length 272 [2019-09-08 16:18:00,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:18:00,315 INFO L475 AbstractCegarLoop]: Abstraction has 4148 states and 5635 transitions. [2019-09-08 16:18:00,315 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:18:00,315 INFO L276 IsEmpty]: Start isEmpty. Operand 4148 states and 5635 transitions. [2019-09-08 16:18:00,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2019-09-08 16:18:00,334 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:18:00,334 INFO L399 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] [2019-09-08 16:18:00,335 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:18:00,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:18:00,335 INFO L82 PathProgramCache]: Analyzing trace with hash 194718293, now seen corresponding path program 1 times [2019-09-08 16:18:00,335 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:18:00,336 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:18:00,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:18:00,342 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:18:00,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:18:00,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:18:01,247 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2019-09-08 16:18:01,247 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:18:01,248 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:18:01,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:18:09,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:18:09,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 10593 conjuncts, 3 conjunts are in the unsatisfiable core [2019-09-08 16:18:09,485 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:18:09,600 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2019-09-08 16:18:09,716 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 16:18:09,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2019-09-08 16:18:09,717 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 16:18:09,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 16:18:09,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-08 16:18:09,718 INFO L87 Difference]: Start difference. First operand 4148 states and 5635 transitions. Second operand 6 states. [2019-09-08 16:18:09,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:18:09,969 INFO L93 Difference]: Finished difference Result 8314 states and 11356 transitions. [2019-09-08 16:18:09,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 16:18:09,969 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 273 [2019-09-08 16:18:09,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:18:10,004 INFO L225 Difference]: With dead ends: 8314 [2019-09-08 16:18:10,004 INFO L226 Difference]: Without dead ends: 4157 [2019-09-08 16:18:10,027 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-08 16:18:10,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4157 states. [2019-09-08 16:18:11,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4157 to 4153. [2019-09-08 16:18:11,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4153 states. [2019-09-08 16:18:11,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4153 states to 4153 states and 5638 transitions. [2019-09-08 16:18:11,129 INFO L78 Accepts]: Start accepts. Automaton has 4153 states and 5638 transitions. Word has length 273 [2019-09-08 16:18:11,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:18:11,130 INFO L475 AbstractCegarLoop]: Abstraction has 4153 states and 5638 transitions. [2019-09-08 16:18:11,130 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 16:18:11,130 INFO L276 IsEmpty]: Start isEmpty. Operand 4153 states and 5638 transitions. [2019-09-08 16:18:11,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2019-09-08 16:18:11,147 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:18:11,147 INFO L399 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] [2019-09-08 16:18:11,148 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:18:11,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:18:11,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1899681731, now seen corresponding path program 1 times [2019-09-08 16:18:11,148 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:18:11,148 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:18:11,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:18:11,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:18:11,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:18:11,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:18:12,115 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2019-09-08 16:18:12,115 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:18:12,115 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 16:18:12,116 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 16:18:12,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 16:18:12,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 16:18:12,117 INFO L87 Difference]: Start difference. First operand 4153 states and 5638 transitions. Second operand 5 states. [2019-09-08 16:18:22,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:18:22,076 INFO L93 Difference]: Finished difference Result 8260 states and 11225 transitions. [2019-09-08 16:18:22,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 16:18:22,077 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 314 [2019-09-08 16:18:22,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:18:22,115 INFO L225 Difference]: With dead ends: 8260 [2019-09-08 16:18:22,115 INFO L226 Difference]: Without dead ends: 4153 [2019-09-08 16:18:22,134 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 16:18:22,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4153 states. [2019-09-08 16:18:22,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4153 to 4153. [2019-09-08 16:18:22,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4153 states. [2019-09-08 16:18:22,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4153 states to 4153 states and 5637 transitions. [2019-09-08 16:18:22,341 INFO L78 Accepts]: Start accepts. Automaton has 4153 states and 5637 transitions. Word has length 314 [2019-09-08 16:18:22,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:18:22,343 INFO L475 AbstractCegarLoop]: Abstraction has 4153 states and 5637 transitions. [2019-09-08 16:18:22,343 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 16:18:22,343 INFO L276 IsEmpty]: Start isEmpty. Operand 4153 states and 5637 transitions. [2019-09-08 16:18:22,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2019-09-08 16:18:22,360 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:18:22,360 INFO L399 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] [2019-09-08 16:18:22,360 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:18:22,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:18:22,361 INFO L82 PathProgramCache]: Analyzing trace with hash -474658912, now seen corresponding path program 1 times [2019-09-08 16:18:22,361 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:18:22,361 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:18:22,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:18:22,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:18:22,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:18:22,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:18:23,562 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2019-09-08 16:18:23,563 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:18:23,563 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 16:18:23,565 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 16:18:23,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 16:18:23,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-09-08 16:18:23,566 INFO L87 Difference]: Start difference. First operand 4153 states and 5637 transitions. Second operand 9 states. [2019-09-08 16:18:47,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:18:47,937 INFO L93 Difference]: Finished difference Result 9045 states and 12281 transitions. [2019-09-08 16:18:47,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-08 16:18:47,938 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 316 [2019-09-08 16:18:47,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:18:47,963 INFO L225 Difference]: With dead ends: 9045 [2019-09-08 16:18:47,964 INFO L226 Difference]: Without dead ends: 5077 [2019-09-08 16:18:47,983 INFO L628 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 [2019-09-08 16:18:47,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5077 states. [2019-09-08 16:18:48,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5077 to 4987. [2019-09-08 16:18:48,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4987 states. [2019-09-08 16:18:48,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4987 states to 4987 states and 6732 transitions. [2019-09-08 16:18:48,205 INFO L78 Accepts]: Start accepts. Automaton has 4987 states and 6732 transitions. Word has length 316 [2019-09-08 16:18:48,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:18:48,206 INFO L475 AbstractCegarLoop]: Abstraction has 4987 states and 6732 transitions. [2019-09-08 16:18:48,207 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 16:18:48,207 INFO L276 IsEmpty]: Start isEmpty. Operand 4987 states and 6732 transitions. [2019-09-08 16:18:48,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2019-09-08 16:18:48,228 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:18:48,229 INFO L399 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] [2019-09-08 16:18:48,230 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:18:48,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:18:48,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1297597066, now seen corresponding path program 1 times [2019-09-08 16:18:48,230 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:18:48,230 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:18:48,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:18:48,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:18:48,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:18:48,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:18:49,420 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2019-09-08 16:18:49,421 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:18:49,421 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:18:49,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:18:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:18:59,354 INFO L256 TraceCheckSpWp]: Trace formula consists of 11515 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-08 16:18:59,379 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:18:59,544 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 206 proven. 1 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2019-09-08 16:18:59,650 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:18:59,651 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 7 [2019-09-08 16:18:59,652 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 16:18:59,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 16:18:59,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-08 16:18:59,652 INFO L87 Difference]: Start difference. First operand 4987 states and 6732 transitions. Second operand 7 states. [2019-09-08 16:19:00,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:19:00,009 INFO L93 Difference]: Finished difference Result 10190 states and 13893 transitions. [2019-09-08 16:19:00,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-08 16:19:00,010 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 460 [2019-09-08 16:19:00,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:19:00,037 INFO L225 Difference]: With dead ends: 10190 [2019-09-08 16:19:00,037 INFO L226 Difference]: Without dead ends: 5234 [2019-09-08 16:19:00,059 INFO L628 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 [2019-09-08 16:19:00,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5234 states. [2019-09-08 16:19:00,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5234 to 5006. [2019-09-08 16:19:00,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5006 states. [2019-09-08 16:19:00,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5006 states to 5006 states and 6751 transitions. [2019-09-08 16:19:00,275 INFO L78 Accepts]: Start accepts. Automaton has 5006 states and 6751 transitions. Word has length 460 [2019-09-08 16:19:00,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:19:00,276 INFO L475 AbstractCegarLoop]: Abstraction has 5006 states and 6751 transitions. [2019-09-08 16:19:00,276 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 16:19:00,276 INFO L276 IsEmpty]: Start isEmpty. Operand 5006 states and 6751 transitions. [2019-09-08 16:19:00,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2019-09-08 16:19:00,298 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:19:00,300 INFO L399 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] [2019-09-08 16:19:00,300 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:19:00,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:19:00,301 INFO L82 PathProgramCache]: Analyzing trace with hash 504130060, now seen corresponding path program 1 times [2019-09-08 16:19:00,301 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:19:00,301 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:19:00,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:19:00,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:19:00,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:19:00,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:19:01,185 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2019-09-08 16:19:01,186 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:19:01,186 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 16:19:01,187 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 16:19:01,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 16:19:01,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 16:19:01,188 INFO L87 Difference]: Start difference. First operand 5006 states and 6751 transitions. Second operand 5 states. [2019-09-08 16:19:01,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:19:01,333 INFO L93 Difference]: Finished difference Result 9844 states and 13317 transitions. [2019-09-08 16:19:01,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 16:19:01,333 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 467 [2019-09-08 16:19:01,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:19:01,369 INFO L225 Difference]: With dead ends: 9844 [2019-09-08 16:19:01,369 INFO L226 Difference]: Without dead ends: 5024 [2019-09-08 16:19:01,382 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 16:19:01,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5024 states. [2019-09-08 16:19:01,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5024 to 5020. [2019-09-08 16:19:01,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5020 states. [2019-09-08 16:19:01,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5020 states to 5020 states and 6765 transitions. [2019-09-08 16:19:01,601 INFO L78 Accepts]: Start accepts. Automaton has 5020 states and 6765 transitions. Word has length 467 [2019-09-08 16:19:01,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:19:01,603 INFO L475 AbstractCegarLoop]: Abstraction has 5020 states and 6765 transitions. [2019-09-08 16:19:01,603 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 16:19:01,603 INFO L276 IsEmpty]: Start isEmpty. Operand 5020 states and 6765 transitions. [2019-09-08 16:19:01,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2019-09-08 16:19:01,627 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:19:01,628 INFO L399 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] [2019-09-08 16:19:01,628 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:19:01,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:19:01,629 INFO L82 PathProgramCache]: Analyzing trace with hash 893191478, now seen corresponding path program 1 times [2019-09-08 16:19:01,629 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:19:01,629 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:19:01,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:19:01,635 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:19:01,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:19:02,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:19:02,833 INFO L134 CoverageAnalysis]: Checked inductivity of 585 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2019-09-08 16:19:02,834 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:19:02,834 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 16:19:02,834 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 16:19:02,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 16:19:02,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-08 16:19:02,836 INFO L87 Difference]: Start difference. First operand 5020 states and 6765 transitions. Second operand 6 states. [2019-09-08 16:19:03,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:19:03,021 INFO L93 Difference]: Finished difference Result 9898 states and 13372 transitions. [2019-09-08 16:19:03,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 16:19:03,022 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 472 [2019-09-08 16:19:03,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:19:03,049 INFO L225 Difference]: With dead ends: 9898 [2019-09-08 16:19:03,049 INFO L226 Difference]: Without dead ends: 5064 [2019-09-08 16:19:03,063 INFO L628 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 [2019-09-08 16:19:03,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5064 states. [2019-09-08 16:19:03,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5064 to 5042. [2019-09-08 16:19:03,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5042 states. [2019-09-08 16:19:03,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5042 states to 5042 states and 6793 transitions. [2019-09-08 16:19:03,393 INFO L78 Accepts]: Start accepts. Automaton has 5042 states and 6793 transitions. Word has length 472 [2019-09-08 16:19:03,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:19:03,394 INFO L475 AbstractCegarLoop]: Abstraction has 5042 states and 6793 transitions. [2019-09-08 16:19:03,394 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 16:19:03,394 INFO L276 IsEmpty]: Start isEmpty. Operand 5042 states and 6793 transitions. [2019-09-08 16:19:03,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2019-09-08 16:19:03,409 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:19:03,411 INFO L399 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] [2019-09-08 16:19:03,411 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:19:03,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:19:03,412 INFO L82 PathProgramCache]: Analyzing trace with hash -514111917, now seen corresponding path program 1 times [2019-09-08 16:19:03,412 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:19:03,412 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:19:03,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:19:03,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:19:03,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:19:03,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:19:04,464 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 571 trivial. 0 not checked. [2019-09-08 16:19:04,464 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:19:04,464 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:19:04,503 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:19:13,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:19:13,773 INFO L256 TraceCheckSpWp]: Trace formula consists of 11962 conjuncts, 5 conjunts are in the unsatisfiable core [2019-09-08 16:19:13,799 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:19:14,005 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 246 proven. 3 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2019-09-08 16:19:14,147 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:19:14,147 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 9 [2019-09-08 16:19:14,150 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 16:19:14,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 16:19:14,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-09-08 16:19:14,151 INFO L87 Difference]: Start difference. First operand 5042 states and 6793 transitions. Second operand 9 states. [2019-09-08 16:19:33,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:19:33,344 INFO L93 Difference]: Finished difference Result 10053 states and 13632 transitions. [2019-09-08 16:19:33,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-08 16:19:33,345 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 547 [2019-09-08 16:19:33,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:19:33,366 INFO L225 Difference]: With dead ends: 10053 [2019-09-08 16:19:33,366 INFO L226 Difference]: Without dead ends: 5043 [2019-09-08 16:19:33,379 INFO L628 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 [2019-09-08 16:19:33,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5043 states. [2019-09-08 16:19:33,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5043 to 5043. [2019-09-08 16:19:33,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5043 states. [2019-09-08 16:19:33,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5043 states to 5043 states and 6780 transitions. [2019-09-08 16:19:33,589 INFO L78 Accepts]: Start accepts. Automaton has 5043 states and 6780 transitions. Word has length 547 [2019-09-08 16:19:33,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:19:33,590 INFO L475 AbstractCegarLoop]: Abstraction has 5043 states and 6780 transitions. [2019-09-08 16:19:33,590 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 16:19:33,591 INFO L276 IsEmpty]: Start isEmpty. Operand 5043 states and 6780 transitions. [2019-09-08 16:19:33,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2019-09-08 16:19:33,610 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:19:33,611 INFO L399 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] [2019-09-08 16:19:33,611 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:19:33,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:19:33,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1669586213, now seen corresponding path program 1 times [2019-09-08 16:19:33,612 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:19:33,612 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:19:33,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:19:33,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:19:33,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:19:33,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:19:34,822 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2019-09-08 16:19:34,823 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:19:34,823 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:19:34,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:19:44,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:19:44,311 INFO L256 TraceCheckSpWp]: Trace formula consists of 11982 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-08 16:19:44,329 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:19:44,754 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 260 proven. 6 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2019-09-08 16:19:44,895 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:19:44,896 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 10 [2019-09-08 16:19:44,897 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-08 16:19:44,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-08 16:19:44,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-09-08 16:19:44,898 INFO L87 Difference]: Start difference. First operand 5043 states and 6780 transitions. Second operand 10 states. [2019-09-08 16:20:03,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:20:03,368 INFO L93 Difference]: Finished difference Result 10054 states and 13605 transitions. [2019-09-08 16:20:03,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-08 16:20:03,369 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 552 [2019-09-08 16:20:03,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:20:03,387 INFO L225 Difference]: With dead ends: 10054 [2019-09-08 16:20:03,387 INFO L226 Difference]: Without dead ends: 5044 [2019-09-08 16:20:03,400 INFO L628 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 [2019-09-08 16:20:03,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5044 states. [2019-09-08 16:20:03,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5044 to 5044. [2019-09-08 16:20:03,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5044 states. [2019-09-08 16:20:03,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5044 states to 5044 states and 6767 transitions. [2019-09-08 16:20:03,616 INFO L78 Accepts]: Start accepts. Automaton has 5044 states and 6767 transitions. Word has length 552 [2019-09-08 16:20:03,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:20:03,617 INFO L475 AbstractCegarLoop]: Abstraction has 5044 states and 6767 transitions. [2019-09-08 16:20:03,617 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-08 16:20:03,617 INFO L276 IsEmpty]: Start isEmpty. Operand 5044 states and 6767 transitions. [2019-09-08 16:20:03,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2019-09-08 16:20:03,627 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:20:03,628 INFO L399 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] [2019-09-08 16:20:03,628 INFO L418 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:20:03,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:20:03,628 INFO L82 PathProgramCache]: Analyzing trace with hash -2098447533, now seen corresponding path program 1 times [2019-09-08 16:20:03,629 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:20:03,629 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:20:03,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:20:03,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:20:03,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:20:03,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:20:04,724 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2019-09-08 16:20:04,725 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:20:04,725 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:20:04,763 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:20:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:20:13,747 INFO L256 TraceCheckSpWp]: Trace formula consists of 12002 conjuncts, 7 conjunts are in the unsatisfiable core [2019-09-08 16:20:13,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:20:13,973 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 278 proven. 10 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2019-09-08 16:20:14,071 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:20:14,072 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8] total 11 [2019-09-08 16:20:14,073 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-08 16:20:14,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-08 16:20:14,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2019-09-08 16:20:14,074 INFO L87 Difference]: Start difference. First operand 5044 states and 6767 transitions. Second operand 11 states. [2019-09-08 16:20:36,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:20:36,523 INFO L93 Difference]: Finished difference Result 10055 states and 13578 transitions. [2019-09-08 16:20:36,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-08 16:20:36,524 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 557 [2019-09-08 16:20:36,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:20:36,544 INFO L225 Difference]: With dead ends: 10055 [2019-09-08 16:20:36,544 INFO L226 Difference]: Without dead ends: 5045 [2019-09-08 16:20:36,559 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 577 GetRequests, 561 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2019-09-08 16:20:36,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5045 states. [2019-09-08 16:20:36,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5045 to 5045. [2019-09-08 16:20:36,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5045 states. [2019-09-08 16:20:36,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5045 states to 5045 states and 6754 transitions. [2019-09-08 16:20:36,810 INFO L78 Accepts]: Start accepts. Automaton has 5045 states and 6754 transitions. Word has length 557 [2019-09-08 16:20:36,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:20:36,811 INFO L475 AbstractCegarLoop]: Abstraction has 5045 states and 6754 transitions. [2019-09-08 16:20:36,811 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-08 16:20:36,811 INFO L276 IsEmpty]: Start isEmpty. Operand 5045 states and 6754 transitions. [2019-09-08 16:20:36,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 563 [2019-09-08 16:20:36,828 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:20:36,829 INFO L399 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] [2019-09-08 16:20:36,829 INFO L418 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:20:36,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:20:36,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1812111405, now seen corresponding path program 1 times [2019-09-08 16:20:36,830 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:20:36,830 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:20:36,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:20:36,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:20:36,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:20:37,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:20:37,819 INFO L134 CoverageAnalysis]: Checked inductivity of 712 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2019-09-08 16:20:37,819 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:20:37,819 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:20:37,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:20:46,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:20:47,043 INFO L256 TraceCheckSpWp]: Trace formula consists of 12022 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-08 16:20:47,061 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:20:47,275 INFO L134 CoverageAnalysis]: Checked inductivity of 712 backedges. 300 proven. 15 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2019-09-08 16:20:47,386 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:20:47,387 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9] total 12 [2019-09-08 16:20:47,388 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-08 16:20:47,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-08 16:20:47,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2019-09-08 16:20:47,388 INFO L87 Difference]: Start difference. First operand 5045 states and 6754 transitions. Second operand 12 states. [2019-09-08 16:21:07,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:21:07,112 INFO L93 Difference]: Finished difference Result 9852 states and 13295 transitions. [2019-09-08 16:21:07,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-08 16:21:07,113 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 562 [2019-09-08 16:21:07,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:21:07,129 INFO L225 Difference]: With dead ends: 9852 [2019-09-08 16:21:07,129 INFO L226 Difference]: Without dead ends: 4842 [2019-09-08 16:21:07,139 INFO L628 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 [2019-09-08 16:21:07,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4842 states. [2019-09-08 16:21:07,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4842 to 4842. [2019-09-08 16:21:07,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4842 states. [2019-09-08 16:21:07,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4842 states to 4842 states and 6485 transitions. [2019-09-08 16:21:07,357 INFO L78 Accepts]: Start accepts. Automaton has 4842 states and 6485 transitions. Word has length 562 [2019-09-08 16:21:07,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:21:07,357 INFO L475 AbstractCegarLoop]: Abstraction has 4842 states and 6485 transitions. [2019-09-08 16:21:07,357 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-08 16:21:07,357 INFO L276 IsEmpty]: Start isEmpty. Operand 4842 states and 6485 transitions. [2019-09-08 16:21:07,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2019-09-08 16:21:07,367 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:21:07,368 INFO L399 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] [2019-09-08 16:21:07,368 INFO L418 AbstractCegarLoop]: === Iteration 16 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:21:07,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:21:07,369 INFO L82 PathProgramCache]: Analyzing trace with hash -187682779, now seen corresponding path program 1 times [2019-09-08 16:21:07,369 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:21:07,369 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:21:07,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:21:07,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:21:07,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:21:07,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:21:08,772 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 752 trivial. 0 not checked. [2019-09-08 16:21:08,772 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:21:08,772 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 16:21:08,773 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 16:21:08,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 16:21:08,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-08 16:21:08,774 INFO L87 Difference]: Start difference. First operand 4842 states and 6485 transitions. Second operand 9 states. [2019-09-08 16:21:19,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:21:19,786 INFO L93 Difference]: Finished difference Result 12045 states and 16150 transitions. [2019-09-08 16:21:19,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-08 16:21:19,787 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 565 [2019-09-08 16:21:19,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:21:19,816 INFO L225 Difference]: With dead ends: 12045 [2019-09-08 16:21:19,816 INFO L226 Difference]: Without dead ends: 7341 [2019-09-08 16:21:19,830 INFO L628 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 [2019-09-08 16:21:19,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7341 states. [2019-09-08 16:21:20,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7341 to 4868. [2019-09-08 16:21:20,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4868 states. [2019-09-08 16:21:20,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4868 states to 4868 states and 6521 transitions. [2019-09-08 16:21:20,083 INFO L78 Accepts]: Start accepts. Automaton has 4868 states and 6521 transitions. Word has length 565 [2019-09-08 16:21:20,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:21:20,084 INFO L475 AbstractCegarLoop]: Abstraction has 4868 states and 6521 transitions. [2019-09-08 16:21:20,084 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 16:21:20,084 INFO L276 IsEmpty]: Start isEmpty. Operand 4868 states and 6521 transitions. [2019-09-08 16:21:20,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 589 [2019-09-08 16:21:20,093 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:21:20,093 INFO L399 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] [2019-09-08 16:21:20,094 INFO L418 AbstractCegarLoop]: === Iteration 17 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:21:20,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:21:20,094 INFO L82 PathProgramCache]: Analyzing trace with hash -144221366, now seen corresponding path program 1 times [2019-09-08 16:21:20,094 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:21:20,094 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:21:20,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:21:20,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:21:20,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:21:20,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:21:21,161 INFO L134 CoverageAnalysis]: Checked inductivity of 934 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 917 trivial. 0 not checked. [2019-09-08 16:21:21,162 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:21:21,162 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 16:21:21,163 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 16:21:21,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 16:21:21,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-08 16:21:21,163 INFO L87 Difference]: Start difference. First operand 4868 states and 6521 transitions. Second operand 6 states. [2019-09-08 16:21:21,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:21:21,401 INFO L93 Difference]: Finished difference Result 9620 states and 12920 transitions. [2019-09-08 16:21:21,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 16:21:21,401 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 588 [2019-09-08 16:21:21,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:21:21,418 INFO L225 Difference]: With dead ends: 9620 [2019-09-08 16:21:21,419 INFO L226 Difference]: Without dead ends: 4890 [2019-09-08 16:21:21,429 INFO L628 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 [2019-09-08 16:21:21,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4890 states. [2019-09-08 16:21:21,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4890 to 4890. [2019-09-08 16:21:21,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4890 states. [2019-09-08 16:21:21,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4890 states to 4890 states and 6549 transitions. [2019-09-08 16:21:21,757 INFO L78 Accepts]: Start accepts. Automaton has 4890 states and 6549 transitions. Word has length 588 [2019-09-08 16:21:21,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:21:21,758 INFO L475 AbstractCegarLoop]: Abstraction has 4890 states and 6549 transitions. [2019-09-08 16:21:21,758 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 16:21:21,759 INFO L276 IsEmpty]: Start isEmpty. Operand 4890 states and 6549 transitions. [2019-09-08 16:21:21,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2019-09-08 16:21:21,772 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:21:21,773 INFO L399 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] [2019-09-08 16:21:21,773 INFO L418 AbstractCegarLoop]: === Iteration 18 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:21:21,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:21:21,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1260148012, now seen corresponding path program 1 times [2019-09-08 16:21:21,774 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:21:21,774 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:21:21,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:21:21,781 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:21:21,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:21:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:21:23,601 INFO L134 CoverageAnalysis]: Checked inductivity of 939 backedges. 17 proven. 70 refuted. 0 times theorem prover too weak. 852 trivial. 0 not checked. [2019-09-08 16:21:23,602 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:21:23,602 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:21:23,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:21:32,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:21:32,830 INFO L256 TraceCheckSpWp]: Trace formula consists of 12298 conjuncts, 9 conjunts are in the unsatisfiable core [2019-09-08 16:21:32,843 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:21:33,258 INFO L134 CoverageAnalysis]: Checked inductivity of 939 backedges. 326 proven. 21 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2019-09-08 16:21:33,376 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:21:33,376 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 10] total 28 [2019-09-08 16:21:33,378 INFO L454 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-09-08 16:21:33,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-09-08 16:21:33,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2019-09-08 16:21:33,380 INFO L87 Difference]: Start difference. First operand 4890 states and 6549 transitions. Second operand 28 states. [2019-09-08 16:21:34,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:21:34,833 INFO L93 Difference]: Finished difference Result 10185 states and 13818 transitions. [2019-09-08 16:21:34,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-09-08 16:21:34,833 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 616 [2019-09-08 16:21:34,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:21:34,855 INFO L225 Difference]: With dead ends: 10185 [2019-09-08 16:21:34,855 INFO L226 Difference]: Without dead ends: 5335 [2019-09-08 16:21:34,883 INFO L628 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 [2019-09-08 16:21:34,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5335 states. [2019-09-08 16:21:35,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5335 to 4973. [2019-09-08 16:21:35,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4973 states. [2019-09-08 16:21:35,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4973 states to 4973 states and 6662 transitions. [2019-09-08 16:21:35,131 INFO L78 Accepts]: Start accepts. Automaton has 4973 states and 6662 transitions. Word has length 616 [2019-09-08 16:21:35,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:21:35,131 INFO L475 AbstractCegarLoop]: Abstraction has 4973 states and 6662 transitions. [2019-09-08 16:21:35,131 INFO L476 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-09-08 16:21:35,132 INFO L276 IsEmpty]: Start isEmpty. Operand 4973 states and 6662 transitions. [2019-09-08 16:21:35,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2019-09-08 16:21:35,143 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:21:35,143 INFO L399 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] [2019-09-08 16:21:35,144 INFO L418 AbstractCegarLoop]: === Iteration 19 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:21:35,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:21:35,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1297300510, now seen corresponding path program 1 times [2019-09-08 16:21:35,144 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:21:35,145 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:21:35,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:21:35,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:21:35,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:21:35,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:21:37,311 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 17 proven. 67 refuted. 0 times theorem prover too weak. 889 trivial. 0 not checked. [2019-09-08 16:21:37,311 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:21:37,311 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:21:37,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:21:45,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:21:46,050 INFO L256 TraceCheckSpWp]: Trace formula consists of 12394 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-08 16:21:46,064 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:21:46,537 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 348 proven. 28 refuted. 0 times theorem prover too weak. 597 trivial. 0 not checked. [2019-09-08 16:21:46,648 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:21:46,649 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 11] total 29 [2019-09-08 16:21:46,650 INFO L454 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-09-08 16:21:46,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-09-08 16:21:46,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2019-09-08 16:21:46,651 INFO L87 Difference]: Start difference. First operand 4973 states and 6662 transitions. Second operand 29 states. [2019-09-08 16:21:48,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:21:48,523 INFO L93 Difference]: Finished difference Result 10358 states and 14063 transitions. [2019-09-08 16:21:48,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2019-09-08 16:21:48,524 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 636 [2019-09-08 16:21:48,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:21:48,541 INFO L225 Difference]: With dead ends: 10358 [2019-09-08 16:21:48,542 INFO L226 Difference]: Without dead ends: 5422 [2019-09-08 16:21:48,555 INFO L628 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 [2019-09-08 16:21:48,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5422 states. [2019-09-08 16:21:48,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5422 to 4980. [2019-09-08 16:21:48,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4980 states. [2019-09-08 16:21:48,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4980 states to 4980 states and 6669 transitions. [2019-09-08 16:21:48,773 INFO L78 Accepts]: Start accepts. Automaton has 4980 states and 6669 transitions. Word has length 636 [2019-09-08 16:21:48,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:21:48,773 INFO L475 AbstractCegarLoop]: Abstraction has 4980 states and 6669 transitions. [2019-09-08 16:21:48,773 INFO L476 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-09-08 16:21:48,773 INFO L276 IsEmpty]: Start isEmpty. Operand 4980 states and 6669 transitions. [2019-09-08 16:21:48,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2019-09-08 16:21:48,787 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:21:48,788 INFO L399 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] [2019-09-08 16:21:48,788 INFO L418 AbstractCegarLoop]: === Iteration 20 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:21:48,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:21:48,789 INFO L82 PathProgramCache]: Analyzing trace with hash -795538220, now seen corresponding path program 1 times [2019-09-08 16:21:48,789 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:21:48,789 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:21:48,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:21:48,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:21:48,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:21:49,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:21:49,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1006 backedges. 17 proven. 37 refuted. 0 times theorem prover too weak. 952 trivial. 0 not checked. [2019-09-08 16:21:49,994 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:21:49,994 INFO L223 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 [2019-09-08 16:21:50,041 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:21:58,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:21:58,770 INFO L256 TraceCheckSpWp]: Trace formula consists of 12457 conjuncts, 11 conjunts are in the unsatisfiable core [2019-09-08 16:21:58,782 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:21:59,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1006 backedges. 237 proven. 36 refuted. 0 times theorem prover too weak. 733 trivial. 0 not checked. [2019-09-08 16:21:59,649 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:21:59,650 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 12] total 15 [2019-09-08 16:21:59,652 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-09-08 16:21:59,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-09-08 16:21:59,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2019-09-08 16:21:59,652 INFO L87 Difference]: Start difference. First operand 4980 states and 6669 transitions. Second operand 15 states. [2019-09-08 16:22:00,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:22:00,089 INFO L93 Difference]: Finished difference Result 9928 states and 13510 transitions. [2019-09-08 16:22:00,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-09-08 16:22:00,090 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 645 [2019-09-08 16:22:00,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:22:00,102 INFO L225 Difference]: With dead ends: 9928 [2019-09-08 16:22:00,103 INFO L226 Difference]: Without dead ends: 5076 [2019-09-08 16:22:00,112 INFO L628 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 [2019-09-08 16:22:00,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5076 states. [2019-09-08 16:22:00,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5076 to 5010. [2019-09-08 16:22:00,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5010 states. [2019-09-08 16:22:00,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5010 states to 5010 states and 6699 transitions. [2019-09-08 16:22:00,291 INFO L78 Accepts]: Start accepts. Automaton has 5010 states and 6699 transitions. Word has length 645 [2019-09-08 16:22:00,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:22:00,292 INFO L475 AbstractCegarLoop]: Abstraction has 5010 states and 6699 transitions. [2019-09-08 16:22:00,292 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-09-08 16:22:00,292 INFO L276 IsEmpty]: Start isEmpty. Operand 5010 states and 6699 transitions. [2019-09-08 16:22:00,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 647 [2019-09-08 16:22:00,302 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:22:00,303 INFO L399 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] [2019-09-08 16:22:00,303 INFO L418 AbstractCegarLoop]: === Iteration 21 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:22:00,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:22:00,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1578885922, now seen corresponding path program 1 times [2019-09-08 16:22:00,304 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:22:00,304 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:22:00,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:22:00,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:22:00,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:22:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:22:01,815 INFO L134 CoverageAnalysis]: Checked inductivity of 1047 backedges. 17 proven. 54 refuted. 0 times theorem prover too weak. 976 trivial. 0 not checked. [2019-09-08 16:22:01,815 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:22:01,815 INFO L223 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 [2019-09-08 16:22:01,839 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:22:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:22:11,025 INFO L256 TraceCheckSpWp]: Trace formula consists of 12426 conjuncts, 12 conjunts are in the unsatisfiable core [2019-09-08 16:22:11,035 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:22:11,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1047 backedges. 253 proven. 45 refuted. 0 times theorem prover too weak. 749 trivial. 0 not checked. [2019-09-08 16:22:11,662 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:22:11,662 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2019-09-08 16:22:11,663 INFO L454 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-09-08 16:22:11,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-09-08 16:22:11,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=462, Unknown=0, NotChecked=0, Total=552 [2019-09-08 16:22:11,664 INFO L87 Difference]: Start difference. First operand 5010 states and 6699 transitions. Second operand 24 states. [2019-09-08 16:22:12,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:22:12,799 INFO L93 Difference]: Finished difference Result 10271 states and 13910 transitions. [2019-09-08 16:22:12,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-09-08 16:22:12,799 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 646 [2019-09-08 16:22:12,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:22:12,813 INFO L225 Difference]: With dead ends: 10271 [2019-09-08 16:22:12,814 INFO L226 Difference]: Without dead ends: 5389 [2019-09-08 16:22:12,823 INFO L628 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 [2019-09-08 16:22:12,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5389 states. [2019-09-08 16:22:13,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5389 to 5276. [2019-09-08 16:22:13,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5276 states. [2019-09-08 16:22:13,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5276 states to 5276 states and 7101 transitions. [2019-09-08 16:22:13,043 INFO L78 Accepts]: Start accepts. Automaton has 5276 states and 7101 transitions. Word has length 646 [2019-09-08 16:22:13,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:22:13,043 INFO L475 AbstractCegarLoop]: Abstraction has 5276 states and 7101 transitions. [2019-09-08 16:22:13,043 INFO L476 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-09-08 16:22:13,043 INFO L276 IsEmpty]: Start isEmpty. Operand 5276 states and 7101 transitions. [2019-09-08 16:22:13,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2019-09-08 16:22:13,054 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:22:13,054 INFO L399 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] [2019-09-08 16:22:13,055 INFO L418 AbstractCegarLoop]: === Iteration 22 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:22:13,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:22:13,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1753113664, now seen corresponding path program 1 times [2019-09-08 16:22:13,055 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:22:13,056 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:22:13,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:22:13,059 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:22:13,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:22:13,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:22:14,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 17 proven. 51 refuted. 0 times theorem prover too weak. 996 trivial. 0 not checked. [2019-09-08 16:22:14,340 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:22:14,340 INFO L223 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 [2019-09-08 16:22:14,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:22:23,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:22:23,483 INFO L256 TraceCheckSpWp]: Trace formula consists of 12516 conjuncts, 13 conjunts are in the unsatisfiable core [2019-09-08 16:22:23,498 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:22:24,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 269 proven. 55 refuted. 0 times theorem prover too weak. 740 trivial. 0 not checked. [2019-09-08 16:22:24,112 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:22:24,112 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 25 [2019-09-08 16:22:24,113 INFO L454 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-09-08 16:22:24,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-09-08 16:22:24,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=498, Unknown=0, NotChecked=0, Total=600 [2019-09-08 16:22:24,114 INFO L87 Difference]: Start difference. First operand 5276 states and 7101 transitions. Second operand 25 states. [2019-09-08 16:22:25,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:22:25,160 INFO L93 Difference]: Finished difference Result 10738 states and 14628 transitions. [2019-09-08 16:22:25,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2019-09-08 16:22:25,161 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 665 [2019-09-08 16:22:25,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:22:25,177 INFO L225 Difference]: With dead ends: 10738 [2019-09-08 16:22:25,177 INFO L226 Difference]: Without dead ends: 5590 [2019-09-08 16:22:25,187 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 692 GetRequests, 654 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=272, Invalid=1288, Unknown=0, NotChecked=0, Total=1560 [2019-09-08 16:22:25,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5590 states. [2019-09-08 16:22:25,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5590 to 5256. [2019-09-08 16:22:25,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5256 states. [2019-09-08 16:22:25,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5256 states to 5256 states and 7069 transitions. [2019-09-08 16:22:25,395 INFO L78 Accepts]: Start accepts. Automaton has 5256 states and 7069 transitions. Word has length 665 [2019-09-08 16:22:25,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:22:25,395 INFO L475 AbstractCegarLoop]: Abstraction has 5256 states and 7069 transitions. [2019-09-08 16:22:25,395 INFO L476 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-09-08 16:22:25,395 INFO L276 IsEmpty]: Start isEmpty. Operand 5256 states and 7069 transitions. [2019-09-08 16:22:25,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 675 [2019-09-08 16:22:25,403 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:22:25,404 INFO L399 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] [2019-09-08 16:22:25,404 INFO L418 AbstractCegarLoop]: === Iteration 23 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:22:25,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:22:25,404 INFO L82 PathProgramCache]: Analyzing trace with hash -641570848, now seen corresponding path program 1 times [2019-09-08 16:22:25,405 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:22:25,405 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:22:25,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:22:25,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:22:25,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:22:27,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:22:28,191 INFO L134 CoverageAnalysis]: Checked inductivity of 1511 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1494 trivial. 0 not checked. [2019-09-08 16:22:28,192 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:22:28,192 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:22:28,193 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:22:28,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:22:28,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:22:28,193 INFO L87 Difference]: Start difference. First operand 5256 states and 7069 transitions. Second operand 3 states. [2019-09-08 16:22:28,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:22:28,419 INFO L93 Difference]: Finished difference Result 10414 states and 14050 transitions. [2019-09-08 16:22:28,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:22:28,419 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 674 [2019-09-08 16:22:28,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:22:28,435 INFO L225 Difference]: With dead ends: 10414 [2019-09-08 16:22:28,435 INFO L226 Difference]: Without dead ends: 5298 [2019-09-08 16:22:28,446 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:22:28,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5298 states. [2019-09-08 16:22:28,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5298 to 5264. [2019-09-08 16:22:28,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5264 states. [2019-09-08 16:22:28,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5264 states to 5264 states and 7079 transitions. [2019-09-08 16:22:28,662 INFO L78 Accepts]: Start accepts. Automaton has 5264 states and 7079 transitions. Word has length 674 [2019-09-08 16:22:28,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:22:28,662 INFO L475 AbstractCegarLoop]: Abstraction has 5264 states and 7079 transitions. [2019-09-08 16:22:28,662 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:22:28,663 INFO L276 IsEmpty]: Start isEmpty. Operand 5264 states and 7079 transitions. [2019-09-08 16:22:28,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 677 [2019-09-08 16:22:28,674 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:22:28,675 INFO L399 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, 1, 1] [2019-09-08 16:22:28,675 INFO L418 AbstractCegarLoop]: === Iteration 24 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:22:28,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:22:28,675 INFO L82 PathProgramCache]: Analyzing trace with hash -372678207, now seen corresponding path program 1 times [2019-09-08 16:22:28,676 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:22:28,676 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:22:28,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:22:28,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:22:28,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:22:29,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:22:29,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1511 backedges. 359 proven. 76 refuted. 0 times theorem prover too weak. 1076 trivial. 0 not checked. [2019-09-08 16:22:29,887 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:22:29,887 INFO L223 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 [2019-09-08 16:22:29,916 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:22:38,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:22:39,163 INFO L256 TraceCheckSpWp]: Trace formula consists of 12593 conjuncts, 14 conjunts are in the unsatisfiable core [2019-09-08 16:22:39,179 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:22:39,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1511 backedges. 630 proven. 66 refuted. 0 times theorem prover too weak. 815 trivial. 0 not checked. [2019-09-08 16:22:39,546 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:22:39,547 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 16 [2019-09-08 16:22:39,548 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-08 16:22:39,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-08 16:22:39,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2019-09-08 16:22:39,548 INFO L87 Difference]: Start difference. First operand 5264 states and 7079 transitions. Second operand 16 states. [2019-09-08 16:22:39,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:22:39,969 INFO L93 Difference]: Finished difference Result 10445 states and 14150 transitions. [2019-09-08 16:22:39,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-09-08 16:22:39,969 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 676 [2019-09-08 16:22:39,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:22:39,983 INFO L225 Difference]: With dead ends: 10445 [2019-09-08 16:22:39,983 INFO L226 Difference]: Without dead ends: 5309 [2019-09-08 16:22:39,992 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 702 GetRequests, 676 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=288, Invalid=468, Unknown=0, NotChecked=0, Total=756 [2019-09-08 16:22:39,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5309 states. [2019-09-08 16:22:40,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5309 to 5270. [2019-09-08 16:22:40,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5270 states. [2019-09-08 16:22:40,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5270 states to 5270 states and 7085 transitions. [2019-09-08 16:22:40,173 INFO L78 Accepts]: Start accepts. Automaton has 5270 states and 7085 transitions. Word has length 676 [2019-09-08 16:22:40,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:22:40,174 INFO L475 AbstractCegarLoop]: Abstraction has 5270 states and 7085 transitions. [2019-09-08 16:22:40,174 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-08 16:22:40,174 INFO L276 IsEmpty]: Start isEmpty. Operand 5270 states and 7085 transitions. [2019-09-08 16:22:40,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 681 [2019-09-08 16:22:40,181 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:22:40,182 INFO L399 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, 1, 1] [2019-09-08 16:22:40,182 INFO L418 AbstractCegarLoop]: === Iteration 25 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:22:40,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:22:40,182 INFO L82 PathProgramCache]: Analyzing trace with hash -451527303, now seen corresponding path program 1 times [2019-09-08 16:22:40,182 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:22:40,183 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:22:40,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:22:40,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:22:40,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:22:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:22:41,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 17 proven. 37 refuted. 0 times theorem prover too weak. 1071 trivial. 0 not checked. [2019-09-08 16:22:41,187 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:22:41,187 INFO L223 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 [2019-09-08 16:22:41,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:22:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:22:50,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 12586 conjuncts, 15 conjunts are in the unsatisfiable core [2019-09-08 16:22:50,532 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:22:51,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 301 proven. 78 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2019-09-08 16:22:51,145 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:22:51,145 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 16] total 20 [2019-09-08 16:22:51,146 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-08 16:22:51,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-08 16:22:51,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2019-09-08 16:22:51,147 INFO L87 Difference]: Start difference. First operand 5270 states and 7085 transitions. Second operand 20 states. [2019-09-08 16:22:51,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:22:51,748 INFO L93 Difference]: Finished difference Result 10592 states and 14470 transitions. [2019-09-08 16:22:51,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-09-08 16:22:51,748 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 680 [2019-09-08 16:22:51,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:22:51,763 INFO L225 Difference]: With dead ends: 10592 [2019-09-08 16:22:51,764 INFO L226 Difference]: Without dead ends: 5450 [2019-09-08 16:22:51,774 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 700 GetRequests, 667 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=327, Invalid=795, Unknown=0, NotChecked=0, Total=1122 [2019-09-08 16:22:51,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5450 states. [2019-09-08 16:22:51,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5450 to 5324. [2019-09-08 16:22:51,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5324 states. [2019-09-08 16:22:51,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5324 states to 5324 states and 7163 transitions. [2019-09-08 16:22:51,969 INFO L78 Accepts]: Start accepts. Automaton has 5324 states and 7163 transitions. Word has length 680 [2019-09-08 16:22:51,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:22:51,969 INFO L475 AbstractCegarLoop]: Abstraction has 5324 states and 7163 transitions. [2019-09-08 16:22:51,969 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-09-08 16:22:51,969 INFO L276 IsEmpty]: Start isEmpty. Operand 5324 states and 7163 transitions. [2019-09-08 16:22:51,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 684 [2019-09-08 16:22:51,977 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:22:51,977 INFO L399 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] [2019-09-08 16:22:51,977 INFO L418 AbstractCegarLoop]: === Iteration 26 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:22:51,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:22:51,978 INFO L82 PathProgramCache]: Analyzing trace with hash 524666642, now seen corresponding path program 1 times [2019-09-08 16:22:51,978 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:22:51,978 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:22:51,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:22:51,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:22:51,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:22:54,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:22:55,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1137 trivial. 0 not checked. [2019-09-08 16:22:55,260 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:22:55,260 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:22:55,261 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:22:55,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:22:55,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:22:55,261 INFO L87 Difference]: Start difference. First operand 5324 states and 7163 transitions. Second operand 3 states. [2019-09-08 16:22:55,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:22:55,406 INFO L93 Difference]: Finished difference Result 10526 states and 14202 transitions. [2019-09-08 16:22:55,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:22:55,406 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 683 [2019-09-08 16:22:55,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:22:55,420 INFO L225 Difference]: With dead ends: 10526 [2019-09-08 16:22:55,421 INFO L226 Difference]: Without dead ends: 5342 [2019-09-08 16:22:55,429 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:22:55,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5342 states. [2019-09-08 16:22:55,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5342 to 5326. [2019-09-08 16:22:55,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5326 states. [2019-09-08 16:22:55,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5326 states to 5326 states and 7165 transitions. [2019-09-08 16:22:55,633 INFO L78 Accepts]: Start accepts. Automaton has 5326 states and 7165 transitions. Word has length 683 [2019-09-08 16:22:55,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:22:55,633 INFO L475 AbstractCegarLoop]: Abstraction has 5326 states and 7165 transitions. [2019-09-08 16:22:55,633 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:22:55,633 INFO L276 IsEmpty]: Start isEmpty. Operand 5326 states and 7165 transitions. [2019-09-08 16:22:55,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 686 [2019-09-08 16:22:55,641 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:22:55,642 INFO L399 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] [2019-09-08 16:22:55,642 INFO L418 AbstractCegarLoop]: === Iteration 27 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:22:55,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:22:55,642 INFO L82 PathProgramCache]: Analyzing trace with hash 467655441, now seen corresponding path program 1 times [2019-09-08 16:22:55,642 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:22:55,642 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:22:55,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:22:55,645 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:22:55,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:23:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:23:03,312 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1137 trivial. 0 not checked. [2019-09-08 16:23:03,313 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 16:23:03,313 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 16:23:03,313 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 16:23:03,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 16:23:03,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 16:23:03,314 INFO L87 Difference]: Start difference. First operand 5326 states and 7165 transitions. Second operand 3 states. [2019-09-08 16:23:03,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:23:03,442 INFO L93 Difference]: Finished difference Result 10508 states and 14176 transitions. [2019-09-08 16:23:03,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 16:23:03,443 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 685 [2019-09-08 16:23:03,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:23:03,456 INFO L225 Difference]: With dead ends: 10508 [2019-09-08 16:23:03,457 INFO L226 Difference]: Without dead ends: 5322 [2019-09-08 16:23:03,466 INFO L628 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 [2019-09-08 16:23:03,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5322 states. [2019-09-08 16:23:03,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5322 to 5322. [2019-09-08 16:23:03,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5322 states. [2019-09-08 16:23:03,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5322 states to 5322 states and 7157 transitions. [2019-09-08 16:23:03,642 INFO L78 Accepts]: Start accepts. Automaton has 5322 states and 7157 transitions. Word has length 685 [2019-09-08 16:23:03,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:23:03,643 INFO L475 AbstractCegarLoop]: Abstraction has 5322 states and 7157 transitions. [2019-09-08 16:23:03,643 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 16:23:03,643 INFO L276 IsEmpty]: Start isEmpty. Operand 5322 states and 7157 transitions. [2019-09-08 16:23:03,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 686 [2019-09-08 16:23:03,651 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:23:03,651 INFO L399 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] [2019-09-08 16:23:03,651 INFO L418 AbstractCegarLoop]: === Iteration 28 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:23:03,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:23:03,652 INFO L82 PathProgramCache]: Analyzing trace with hash -624810671, now seen corresponding path program 1 times [2019-09-08 16:23:03,652 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:23:03,652 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:23:03,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:23:03,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:23:03,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:23:12,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:23:13,317 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 245 proven. 91 refuted. 0 times theorem prover too weak. 818 trivial. 0 not checked. [2019-09-08 16:23:13,317 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:23:13,318 INFO L223 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 [2019-09-08 16:23:13,343 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:23:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:23:22,817 INFO L256 TraceCheckSpWp]: Trace formula consists of 12615 conjuncts, 16 conjunts are in the unsatisfiable core [2019-09-08 16:23:22,828 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:23:23,191 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 317 proven. 91 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2019-09-08 16:23:23,297 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:23:23,298 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2019-09-08 16:23:23,299 INFO L454 AbstractCegarLoop]: Interpolant automaton has 32 states [2019-09-08 16:23:23,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2019-09-08 16:23:23,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=388, Invalid=604, Unknown=0, NotChecked=0, Total=992 [2019-09-08 16:23:23,299 INFO L87 Difference]: Start difference. First operand 5322 states and 7157 transitions. Second operand 32 states. [2019-09-08 16:23:24,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:23:24,201 INFO L93 Difference]: Finished difference Result 10615 states and 14370 transitions. [2019-09-08 16:23:24,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-09-08 16:23:24,201 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 685 [2019-09-08 16:23:24,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:23:24,217 INFO L225 Difference]: With dead ends: 10615 [2019-09-08 16:23:24,217 INFO L226 Difference]: Without dead ends: 5421 [2019-09-08 16:23:24,228 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 729 GetRequests, 671 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 958 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1349, Invalid=2191, Unknown=0, NotChecked=0, Total=3540 [2019-09-08 16:23:24,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5421 states. [2019-09-08 16:23:24,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5421 to 5364. [2019-09-08 16:23:24,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5364 states. [2019-09-08 16:23:24,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5364 states to 5364 states and 7201 transitions. [2019-09-08 16:23:24,410 INFO L78 Accepts]: Start accepts. Automaton has 5364 states and 7201 transitions. Word has length 685 [2019-09-08 16:23:24,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:23:24,411 INFO L475 AbstractCegarLoop]: Abstraction has 5364 states and 7201 transitions. [2019-09-08 16:23:24,411 INFO L476 AbstractCegarLoop]: Interpolant automaton has 32 states. [2019-09-08 16:23:24,411 INFO L276 IsEmpty]: Start isEmpty. Operand 5364 states and 7201 transitions. [2019-09-08 16:23:24,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 687 [2019-09-08 16:23:24,420 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:23:24,420 INFO L399 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] [2019-09-08 16:23:24,421 INFO L418 AbstractCegarLoop]: === Iteration 29 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:23:24,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:23:24,421 INFO L82 PathProgramCache]: Analyzing trace with hash -7173443, now seen corresponding path program 2 times [2019-09-08 16:23:24,421 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:23:24,421 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:23:24,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:23:24,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:23:24,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:23:40,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:23:40,996 INFO L134 CoverageAnalysis]: Checked inductivity of 1184 backedges. 261 proven. 105 refuted. 0 times theorem prover too weak. 818 trivial. 0 not checked. [2019-09-08 16:23:40,996 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:23:40,996 INFO L223 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 [2019-09-08 16:23:41,021 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-09-08 16:23:56,636 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-08 16:23:56,637 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 16:23:57,312 INFO L256 TraceCheckSpWp]: Trace formula consists of 12621 conjuncts, 17 conjunts are in the unsatisfiable core [2019-09-08 16:23:57,324 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:23:57,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1184 backedges. 333 proven. 105 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2019-09-08 16:23:57,888 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:23:57,888 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2019-09-08 16:23:57,889 INFO L454 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-09-08 16:23:57,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-09-08 16:23:57,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=438, Invalid=684, Unknown=0, NotChecked=0, Total=1122 [2019-09-08 16:23:57,890 INFO L87 Difference]: Start difference. First operand 5364 states and 7201 transitions. Second operand 34 states. [2019-09-08 16:23:58,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:23:58,905 INFO L93 Difference]: Finished difference Result 10678 states and 14436 transitions. [2019-09-08 16:23:58,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2019-09-08 16:23:58,906 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 686 [2019-09-08 16:23:58,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:23:58,922 INFO L225 Difference]: With dead ends: 10678 [2019-09-08 16:23:58,922 INFO L226 Difference]: Without dead ends: 5438 [2019-09-08 16:23:58,934 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 733 GetRequests, 671 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1102 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1535, Invalid=2497, Unknown=0, NotChecked=0, Total=4032 [2019-09-08 16:23:58,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5438 states. [2019-09-08 16:23:59,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5438 to 5372. [2019-09-08 16:23:59,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5372 states. [2019-09-08 16:23:59,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5372 states to 5372 states and 7209 transitions. [2019-09-08 16:23:59,263 INFO L78 Accepts]: Start accepts. Automaton has 5372 states and 7209 transitions. Word has length 686 [2019-09-08 16:23:59,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:23:59,264 INFO L475 AbstractCegarLoop]: Abstraction has 5372 states and 7209 transitions. [2019-09-08 16:23:59,264 INFO L476 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-09-08 16:23:59,264 INFO L276 IsEmpty]: Start isEmpty. Operand 5372 states and 7209 transitions. [2019-09-08 16:23:59,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 688 [2019-09-08 16:23:59,279 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:23:59,280 INFO L399 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] [2019-09-08 16:23:59,281 INFO L418 AbstractCegarLoop]: === Iteration 30 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:23:59,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:23:59,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1959711441, now seen corresponding path program 3 times [2019-09-08 16:23:59,282 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:23:59,282 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:23:59,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:23:59,288 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 16:23:59,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:24:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:24:02,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1215 backedges. 277 proven. 120 refuted. 0 times theorem prover too weak. 818 trivial. 0 not checked. [2019-09-08 16:24:02,232 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:24:02,232 INFO L223 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 [2019-09-08 16:24:02,260 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-08 16:26:09,921 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2019-09-08 16:26:09,921 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 16:26:11,485 INFO L256 TraceCheckSpWp]: Trace formula consists of 12627 conjuncts, 18 conjunts are in the unsatisfiable core [2019-09-08 16:26:11,497 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:26:12,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1215 backedges. 349 proven. 120 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (17)] Forcibly destroying the process [2019-09-08 16:26:12,325 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:26:12,326 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 36 [2019-09-08 16:26:12,327 INFO L454 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-09-08 16:26:12,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-09-08 16:26:12,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=491, Invalid=769, Unknown=0, NotChecked=0, Total=1260 [2019-09-08 16:26:12,328 INFO L87 Difference]: Start difference. First operand 5372 states and 7209 transitions. Second operand 36 states. [2019-09-08 16:26:13,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:26:13,539 INFO L93 Difference]: Finished difference Result 10703 states and 14464 transitions. [2019-09-08 16:26:13,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2019-09-08 16:26:13,540 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 687 [2019-09-08 16:26:13,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:26:13,565 INFO L225 Difference]: With dead ends: 10703 [2019-09-08 16:26:13,565 INFO L226 Difference]: Without dead ends: 5455 [2019-09-08 16:26:13,584 INFO L628 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 [2019-09-08 16:26:13,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5455 states. [2019-09-08 16:26:13,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5455 to 5380. [2019-09-08 16:26:13,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5380 states. [2019-09-08 16:26:13,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5380 states to 5380 states and 7217 transitions. [2019-09-08 16:26:13,803 INFO L78 Accepts]: Start accepts. Automaton has 5380 states and 7217 transitions. Word has length 687 [2019-09-08 16:26:13,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:26:13,804 INFO L475 AbstractCegarLoop]: Abstraction has 5380 states and 7217 transitions. [2019-09-08 16:26:13,804 INFO L476 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-09-08 16:26:13,804 INFO L276 IsEmpty]: Start isEmpty. Operand 5380 states and 7217 transitions. [2019-09-08 16:26:13,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 689 [2019-09-08 16:26:13,814 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:26:13,814 INFO L399 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] [2019-09-08 16:26:13,814 INFO L418 AbstractCegarLoop]: === Iteration 31 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:26:13,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:26:13,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1491366595, now seen corresponding path program 4 times [2019-09-08 16:26:13,815 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:26:13,815 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:26:13,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:26:13,820 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 16:26:13,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:26:19,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:26:20,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1247 backedges. 293 proven. 136 refuted. 0 times theorem prover too weak. 818 trivial. 0 not checked. [2019-09-08 16:26:20,649 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:26:20,649 INFO L223 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 [2019-09-08 16:26:20,677 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-09-08 16:26:29,214 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-09-08 16:26:29,214 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 16:26:29,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 12633 conjuncts, 19 conjunts are in the unsatisfiable core [2019-09-08 16:26:29,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:26:29,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1247 backedges. 365 proven. 136 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2019-09-08 16:26:30,088 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:26:30,088 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 38 [2019-09-08 16:26:30,089 INFO L454 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-09-08 16:26:30,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-09-08 16:26:30,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=547, Invalid=859, Unknown=0, NotChecked=0, Total=1406 [2019-09-08 16:26:30,091 INFO L87 Difference]: Start difference. First operand 5380 states and 7217 transitions. Second operand 38 states. [2019-09-08 16:26:31,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:26:31,223 INFO L93 Difference]: Finished difference Result 10728 states and 14492 transitions. [2019-09-08 16:26:31,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2019-09-08 16:26:31,224 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 688 [2019-09-08 16:26:31,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:26:31,242 INFO L225 Difference]: With dead ends: 10728 [2019-09-08 16:26:31,243 INFO L226 Difference]: Without dead ends: 5472 [2019-09-08 16:26:31,255 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 741 GetRequests, 671 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1420 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1943, Invalid=3169, Unknown=0, NotChecked=0, Total=5112 [2019-09-08 16:26:31,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5472 states. [2019-09-08 16:26:31,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5472 to 5388. [2019-09-08 16:26:31,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5388 states. [2019-09-08 16:26:31,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5388 states to 5388 states and 7225 transitions. [2019-09-08 16:26:31,436 INFO L78 Accepts]: Start accepts. Automaton has 5388 states and 7225 transitions. Word has length 688 [2019-09-08 16:26:31,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:26:31,436 INFO L475 AbstractCegarLoop]: Abstraction has 5388 states and 7225 transitions. [2019-09-08 16:26:31,436 INFO L476 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-09-08 16:26:31,436 INFO L276 IsEmpty]: Start isEmpty. Operand 5388 states and 7225 transitions. [2019-09-08 16:26:31,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 690 [2019-09-08 16:26:31,445 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:26:31,446 INFO L399 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] [2019-09-08 16:26:31,446 INFO L418 AbstractCegarLoop]: === Iteration 32 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:26:31,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:26:31,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1100603311, now seen corresponding path program 5 times [2019-09-08 16:26:31,447 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:26:31,447 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:26:31,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:26:31,451 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 16:26:31,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:26:37,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:26:38,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 309 proven. 153 refuted. 0 times theorem prover too weak. 818 trivial. 0 not checked. [2019-09-08 16:26:38,230 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:26:38,230 INFO L223 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 [2019-09-08 16:26:38,250 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-09-08 16:26:53,535 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2019-09-08 16:26:53,535 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 16:26:53,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 1564 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-08 16:26:53,566 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:26:53,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 1150 trivial. 0 not checked. [2019-09-08 16:26:53,845 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 16:26:53,846 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [21] total 24 [2019-09-08 16:26:53,847 INFO L454 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-09-08 16:26:53,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-09-08 16:26:53,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=337, Unknown=0, NotChecked=0, Total=552 [2019-09-08 16:26:53,848 INFO L87 Difference]: Start difference. First operand 5388 states and 7225 transitions. Second operand 24 states. [2019-09-08 16:26:54,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:26:54,482 INFO L93 Difference]: Finished difference Result 10690 states and 14532 transitions. [2019-09-08 16:26:54,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-09-08 16:26:54,483 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 689 [2019-09-08 16:26:54,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:26:54,496 INFO L225 Difference]: With dead ends: 10690 [2019-09-08 16:26:54,496 INFO L226 Difference]: Without dead ends: 5360 [2019-09-08 16:26:54,506 INFO L628 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 [2019-09-08 16:26:54,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5360 states. [2019-09-08 16:26:54,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5360 to 5360. [2019-09-08 16:26:54,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5360 states. [2019-09-08 16:26:54,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5360 states to 5360 states and 7173 transitions. [2019-09-08 16:26:54,671 INFO L78 Accepts]: Start accepts. Automaton has 5360 states and 7173 transitions. Word has length 689 [2019-09-08 16:26:54,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:26:54,672 INFO L475 AbstractCegarLoop]: Abstraction has 5360 states and 7173 transitions. [2019-09-08 16:26:54,672 INFO L476 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-09-08 16:26:54,672 INFO L276 IsEmpty]: Start isEmpty. Operand 5360 states and 7173 transitions. [2019-09-08 16:26:54,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 692 [2019-09-08 16:26:54,782 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:26:54,785 INFO L399 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] [2019-09-08 16:26:54,786 INFO L418 AbstractCegarLoop]: === Iteration 33 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:26:54,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:26:54,786 INFO L82 PathProgramCache]: Analyzing trace with hash 890137171, now seen corresponding path program 1 times [2019-09-08 16:26:54,786 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:26:54,786 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:26:54,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:26:54,790 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 16:26:54,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:26:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:26:59,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1314 backedges. 325 proven. 171 refuted. 0 times theorem prover too weak. 818 trivial. 0 not checked. [2019-09-08 16:26:59,568 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:26:59,568 INFO L223 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 [2019-09-08 16:26:59,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:27:07,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:27:07,828 INFO L256 TraceCheckSpWp]: Trace formula consists of 12652 conjuncts, 21 conjunts are in the unsatisfiable core [2019-09-08 16:27:07,841 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:27:08,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1314 backedges. 397 proven. 171 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2019-09-08 16:27:08,400 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:27:08,401 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 42 [2019-09-08 16:27:08,402 INFO L454 AbstractCegarLoop]: Interpolant automaton has 42 states [2019-09-08 16:27:08,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2019-09-08 16:27:08,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=668, Invalid=1054, Unknown=0, NotChecked=0, Total=1722 [2019-09-08 16:27:08,403 INFO L87 Difference]: Start difference. First operand 5360 states and 7173 transitions. Second operand 42 states. [2019-09-08 16:27:09,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:27:09,635 INFO L93 Difference]: Finished difference Result 10724 states and 14452 transitions. [2019-09-08 16:27:09,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2019-09-08 16:27:09,636 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 691 [2019-09-08 16:27:09,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:27:09,649 INFO L225 Difference]: With dead ends: 10724 [2019-09-08 16:27:09,649 INFO L226 Difference]: Without dead ends: 5476 [2019-09-08 16:27:09,660 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 750 GetRequests, 672 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1778 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=2399, Invalid=3921, Unknown=0, NotChecked=0, Total=6320 [2019-09-08 16:27:09,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5476 states. [2019-09-08 16:27:09,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5476 to 5374. [2019-09-08 16:27:09,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5374 states. [2019-09-08 16:27:09,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5374 states to 5374 states and 7187 transitions. [2019-09-08 16:27:09,956 INFO L78 Accepts]: Start accepts. Automaton has 5374 states and 7187 transitions. Word has length 691 [2019-09-08 16:27:09,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:27:09,957 INFO L475 AbstractCegarLoop]: Abstraction has 5374 states and 7187 transitions. [2019-09-08 16:27:09,957 INFO L476 AbstractCegarLoop]: Interpolant automaton has 42 states. [2019-09-08 16:27:09,957 INFO L276 IsEmpty]: Start isEmpty. Operand 5374 states and 7187 transitions. [2019-09-08 16:27:09,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2019-09-08 16:27:09,965 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:27:09,965 INFO L399 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] [2019-09-08 16:27:09,965 INFO L418 AbstractCegarLoop]: === Iteration 34 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:27:09,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:27:09,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1537208641, now seen corresponding path program 2 times [2019-09-08 16:27:09,966 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:27:09,966 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:27:09,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:27:09,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:27:09,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:27:32,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:27:33,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1349 backedges. 341 proven. 190 refuted. 0 times theorem prover too weak. 818 trivial. 0 not checked. [2019-09-08 16:27:33,734 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:27:33,734 INFO L223 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 [2019-09-08 16:27:33,760 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-09-08 16:27:49,255 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-08 16:27:49,255 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 16:27:50,068 INFO L256 TraceCheckSpWp]: Trace formula consists of 12658 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-08 16:27:50,087 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:27:50,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1349 backedges. 413 proven. 190 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2019-09-08 16:27:50,782 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:27:50,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 44 [2019-09-08 16:27:50,784 INFO L454 AbstractCegarLoop]: Interpolant automaton has 44 states [2019-09-08 16:27:50,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2019-09-08 16:27:50,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=733, Invalid=1159, Unknown=0, NotChecked=0, Total=1892 [2019-09-08 16:27:50,785 INFO L87 Difference]: Start difference. First operand 5374 states and 7187 transitions. Second operand 44 states. [2019-09-08 16:27:52,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:27:52,090 INFO L93 Difference]: Finished difference Result 10743 states and 14468 transitions. [2019-09-08 16:27:52,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2019-09-08 16:27:52,091 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 692 [2019-09-08 16:27:52,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:27:52,105 INFO L225 Difference]: With dead ends: 10743 [2019-09-08 16:27:52,105 INFO L226 Difference]: Without dead ends: 5493 [2019-09-08 16:27:52,116 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 754 GetRequests, 672 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1972 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=2645, Invalid=4327, Unknown=0, NotChecked=0, Total=6972 [2019-09-08 16:27:52,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5493 states. [2019-09-08 16:27:52,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5493 to 5382. [2019-09-08 16:27:52,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5382 states. [2019-09-08 16:27:52,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5382 states to 5382 states and 7195 transitions. [2019-09-08 16:27:52,412 INFO L78 Accepts]: Start accepts. Automaton has 5382 states and 7195 transitions. Word has length 692 [2019-09-08 16:27:52,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:27:52,412 INFO L475 AbstractCegarLoop]: Abstraction has 5382 states and 7195 transitions. [2019-09-08 16:27:52,412 INFO L476 AbstractCegarLoop]: Interpolant automaton has 44 states. [2019-09-08 16:27:52,412 INFO L276 IsEmpty]: Start isEmpty. Operand 5382 states and 7195 transitions. [2019-09-08 16:27:52,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 694 [2019-09-08 16:27:52,420 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:27:52,421 INFO L399 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] [2019-09-08 16:27:52,421 INFO L418 AbstractCegarLoop]: === Iteration 35 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:27:52,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:27:52,421 INFO L82 PathProgramCache]: Analyzing trace with hash 524482515, now seen corresponding path program 3 times [2019-09-08 16:27:52,422 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:27:52,422 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:27:52,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:27:52,425 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 16:27:52,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:28:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:28:02,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1385 backedges. 357 proven. 210 refuted. 0 times theorem prover too weak. 818 trivial. 0 not checked. [2019-09-08 16:28:02,597 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:28:02,597 INFO L223 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 [2019-09-08 16:28:02,620 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2