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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--cdc_mbim.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:21:03,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:21:03,225 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:21:03,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:21:03,238 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:21:03,239 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:21:03,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:21:03,243 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:21:03,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:21:03,245 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:21:03,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:21:03,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:21:03,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:21:03,249 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:21:03,250 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:21:03,251 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:21:03,252 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:21:03,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:21:03,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:21:03,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:21:03,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:21:03,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:21:03,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:21:03,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:21:03,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:21:03,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:21:03,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:21:03,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:21:03,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:21:03,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:21:03,269 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:21:03,270 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:21:03,270 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:21:03,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:21:03,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:21:03,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:21:03,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:21:03,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:21:03,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:21:03,275 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:21:03,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:21:03,276 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 [2019-09-20 13:21:03,291 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:21:03,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:21:03,293 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 13:21:03,293 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 13:21:03,293 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 13:21:03,293 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:21:03,294 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:21:03,294 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 13:21:03,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:21:03,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:21:03,294 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:21:03,295 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:21:03,295 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:21:03,295 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:21:03,295 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:21:03,295 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 13:21:03,296 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:21:03,296 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:21:03,296 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:21:03,296 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 13:21:03,296 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 13:21:03,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:21:03,297 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:21:03,297 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:21:03,297 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 13:21:03,297 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 13:21:03,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:21:03,298 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 13:21:03,298 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:21:03,326 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:21:03,339 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:21:03,342 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:21:03,344 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:21:03,344 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:21:03,345 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--cdc_mbim.ko-entry_point.cil.out.i [2019-09-20 13:21:03,405 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9718d6f85/e0c483578e6346b4b223d6605975b8ea/FLAG41f0588d2 [2019-09-20 13:21:04,208 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:21:04,210 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--cdc_mbim.ko-entry_point.cil.out.i [2019-09-20 13:21:04,263 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9718d6f85/e0c483578e6346b4b223d6605975b8ea/FLAG41f0588d2 [2019-09-20 13:21:04,729 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9718d6f85/e0c483578e6346b4b223d6605975b8ea [2019-09-20 13:21:04,740 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:21:04,742 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:21:04,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:21:04,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:21:04,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:21:04,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:21:04" (1/1) ... [2019-09-20 13:21:04,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@384520f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:04, skipping insertion in model container [2019-09-20 13:21:04,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:21:04" (1/1) ... [2019-09-20 13:21:04,759 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:21:04,899 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:21:06,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:21:06,528 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:21:06,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:21:07,063 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:21:07,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:07 WrapperNode [2019-09-20 13:21:07,064 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:21:07,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:21:07,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:21:07,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:21:07,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:07" (1/1) ... [2019-09-20 13:21:07,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:07" (1/1) ... [2019-09-20 13:21:07,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:07" (1/1) ... [2019-09-20 13:21:07,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:07" (1/1) ... [2019-09-20 13:21:07,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:07" (1/1) ... [2019-09-20 13:21:07,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:07" (1/1) ... [2019-09-20 13:21:07,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:07" (1/1) ... [2019-09-20 13:21:07,332 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:21:07,333 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:21:07,333 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:21:07,333 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:21:07,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:07" (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 [2019-09-20 13:21:07,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:21:07,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:21:07,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-09-20 13:21:07,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2019-09-20 13:21:07,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-09-20 13:21:07,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2019-09-20 13:21:07,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2019-09-20 13:21:07,416 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-09-20 13:21:07,493 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-09-20 13:21:07,494 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-09-20 13:21:07,494 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2019-09-20 13:21:07,494 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2019-09-20 13:21:07,494 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2019-09-20 13:21:07,494 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2019-09-20 13:21:07,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-20 13:21:07,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-09-20 13:21:07,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-09-20 13:21:07,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-20 13:21:07,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-09-20 13:21:07,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-20 13:21:07,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-20 13:21:07,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-20 13:21:07,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-09-20 13:21:07,497 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2019-09-20 13:21:07,497 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_header_cloned [2019-09-20 13:21:07,499 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2019-09-20 13:21:07,499 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_mac_header [2019-09-20 13:21:07,500 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2019-09-20 13:21:07,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb_ip_align [2019-09-20 13:21:07,500 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2019-09-20 13:21:07,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_cow [2019-09-20 13:21:07,500 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cow_head [2019-09-20 13:21:07,500 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hdr [2019-09-20 13:21:07,500 INFO L138 BoogieDeclarations]: Found implementation of procedure vlan_hw_offload_capable [2019-09-20 13:21:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure vlan_insert_tag [2019-09-20 13:21:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_put_tag [2019-09-20 13:21:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_hwaccel_put_tag [2019-09-20 13:21:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure vlan_put_tag [2019-09-20 13:21:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_get_tag [2019-09-20 13:21:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_hwaccel_get_tag [2019-09-20 13:21:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure vlan_get_tag [2019-09-20 13:21:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_manage_power [2019-09-20 13:21:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_wdm_manage_power [2019-09-20 13:21:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_bind [2019-09-20 13:21:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_unbind [2019-09-20 13:21:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_tx_fixup [2019-09-20 13:21:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_process_dgram [2019-09-20 13:21:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_rx_fixup [2019-09-20 13:21:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_suspend [2019-09-20 13:21:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_resume [2019-09-20 13:21:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_driver_init [2019-09-20 13:21:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_driver_exit [2019-09-20 13:21:07,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_2 [2019-09-20 13:21:07,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_3 [2019-09-20 13:21:07,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2019-09-20 13:21:07,505 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:21:07,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_autopm_get_interface_2 [2019-09-20 13:21:07,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_autopm_put_interface_3 [2019-09-20 13:21:07,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_4 [2019-09-20 13:21:07,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_7 [2019-09-20 13:21:07,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_8 [2019-09-20 13:21:07,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2019-09-20 13:21:07,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2019-09-20 13:21:07,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2019-09-20 13:21:07,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2019-09-20 13:21:07,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2019-09-20 13:21:07,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2019-09-20 13:21:07,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2019-09-20 13:21:07,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2019-09-20 13:21:07,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2019-09-20 13:21:07,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2019-09-20 13:21:07,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2019-09-20 13:21:07,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2019-09-20 13:21:07,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2019-09-20 13:21:07,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2019-09-20 13:21:07,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2019-09-20 13:21:07,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2019-09-20 13:21:07,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-20 13:21:07,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2019-09-20 13:21:07,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2019-09-20 13:21:07,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2019-09-20 13:21:07,512 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_bh [2019-09-20 13:21:07,512 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_bh [2019-09-20 13:21:07,515 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_bind_common [2019-09-20 13:21:07,516 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_fill_tx_frame [2019-09-20 13:21:07,516 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_rx_verify_ndp16 [2019-09-20 13:21:07,516 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_rx_verify_nth16 [2019-09-20 13:21:07,516 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_select_altsetting [2019-09-20 13:21:07,516 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_unbind [2019-09-20 13:21:07,516 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2019-09-20 13:21:07,516 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2019-09-20 13:21:07,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-20 13:21:07,517 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2019-09-20 13:21:07,517 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2019-09-20 13:21:07,519 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2019-09-20 13:21:07,519 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2019-09-20 13:21:07,519 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-09-20 13:21:07,519 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_cdc_wdm_register [2019-09-20 13:21:07,519 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-09-20 13:21:07,519 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-09-20 13:21:07,520 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2019-09-20 13:21:07,520 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2019-09-20 13:21:07,520 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2019-09-20 13:21:07,520 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2019-09-20 13:21:07,520 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2019-09-20 13:21:07,520 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-20 13:21:07,520 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-20 13:21:07,521 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-20 13:21:07,521 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-09-20 13:21:07,521 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-09-20 13:21:07,521 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2019-09-20 13:21:07,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:21:07,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-20 13:21:07,522 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-09-20 13:21:07,522 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-20 13:21:07,522 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2019-09-20 13:21:07,522 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2019-09-20 13:21:07,523 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2019-09-20 13:21:07,523 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2019-09-20 13:21:07,523 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2019-09-20 13:21:07,523 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-09-20 13:21:07,524 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-09-20 13:21:07,524 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2019-09-20 13:21:07,524 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-09-20 13:21:07,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:21:07,525 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2019-09-20 13:21:07,525 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2019-09-20 13:21:07,525 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_bh [2019-09-20 13:21:07,525 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_bh [2019-09-20 13:21:07,525 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2019-09-20 13:21:07,528 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2019-09-20 13:21:07,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_4 [2019-09-20 13:21:07,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_autopm_get_interface_2 [2019-09-20 13:21:07,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_autopm_put_interface_3 [2019-09-20 13:21:07,529 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-09-20 13:21:07,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_7 [2019-09-20 13:21:07,530 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-09-20 13:21:07,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_8 [2019-09-20 13:21:07,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2019-09-20 13:21:07,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2019-09-20 13:21:07,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2019-09-20 13:21:07,533 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:21:07,533 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-20 13:21:07,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:21:07,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-20 13:21:07,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-20 13:21:07,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 13:21:07,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-20 13:21:07,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:21:07,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-09-20 13:21:07,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-09-20 13:21:07,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-09-20 13:21:07,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-20 13:21:07,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-09-20 13:21:07,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-20 13:21:07,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-20 13:21:07,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-09-20 13:21:07,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_2 [2019-09-20 13:21:07,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_3 [2019-09-20 13:21:07,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2019-09-20 13:21:07,536 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2019-09-20 13:21:07,537 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2019-09-20 13:21:07,537 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2019-09-20 13:21:07,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:21:07,537 INFO L130 BoogieDeclarations]: Found specification of procedure skb_header_cloned [2019-09-20 13:21:07,537 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-09-20 13:21:07,537 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2019-09-20 13:21:07,537 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2019-09-20 13:21:07,537 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2019-09-20 13:21:07,538 INFO L130 BoogieDeclarations]: Found specification of procedure skb_mac_header [2019-09-20 13:21:07,538 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2019-09-20 13:21:07,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:21:07,538 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2019-09-20 13:21:07,538 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb_ip_align [2019-09-20 13:21:07,538 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2019-09-20 13:21:07,538 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_cow [2019-09-20 13:21:07,539 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cow_head [2019-09-20 13:21:07,539 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hdr [2019-09-20 13:21:07,539 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2019-09-20 13:21:07,539 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2019-09-20 13:21:07,539 INFO L130 BoogieDeclarations]: Found specification of procedure vlan_hw_offload_capable [2019-09-20 13:21:07,539 INFO L130 BoogieDeclarations]: Found specification of procedure vlan_insert_tag [2019-09-20 13:21:07,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2019-09-20 13:21:07,539 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_put_tag [2019-09-20 13:21:07,540 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_hwaccel_put_tag [2019-09-20 13:21:07,540 INFO L130 BoogieDeclarations]: Found specification of procedure vlan_put_tag [2019-09-20 13:21:07,540 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_get_tag [2019-09-20 13:21:07,540 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_hwaccel_get_tag [2019-09-20 13:21:07,540 INFO L130 BoogieDeclarations]: Found specification of procedure vlan_get_tag [2019-09-20 13:21:07,540 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2019-09-20 13:21:07,540 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2019-09-20 13:21:07,540 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2019-09-20 13:21:07,541 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2019-09-20 13:21:07,541 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2019-09-20 13:21:07,541 INFO L130 BoogieDeclarations]: Found specification of procedure usb_cdc_wdm_register [2019-09-20 13:21:07,541 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_select_altsetting [2019-09-20 13:21:07,541 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_bind_common [2019-09-20 13:21:07,541 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_unbind [2019-09-20 13:21:07,541 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_fill_tx_frame [2019-09-20 13:21:07,541 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_rx_verify_nth16 [2019-09-20 13:21:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_rx_verify_ndp16 [2019-09-20 13:21:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_manage_power [2019-09-20 13:21:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:21:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:21:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:21:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_wdm_manage_power [2019-09-20 13:21:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_bind [2019-09-20 13:21:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_unbind [2019-09-20 13:21:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-09-20 13:21:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_tx_fixup [2019-09-20 13:21:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_process_dgram [2019-09-20 13:21:07,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-09-20 13:21:07,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-20 13:21:07,546 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_rx_fixup [2019-09-20 13:21:07,546 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_suspend [2019-09-20 13:21:07,546 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2019-09-20 13:21:07,546 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_resume [2019-09-20 13:21:07,546 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-09-20 13:21:07,547 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_driver_init [2019-09-20 13:21:07,547 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_driver_exit [2019-09-20 13:21:07,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-20 13:21:07,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-20 13:21:07,548 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:21:07,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2019-09-20 13:21:07,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2019-09-20 13:21:07,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2019-09-20 13:21:07,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2019-09-20 13:21:07,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2019-09-20 13:21:07,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2019-09-20 13:21:07,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2019-09-20 13:21:07,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2019-09-20 13:21:07,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2019-09-20 13:21:07,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2019-09-20 13:21:07,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2019-09-20 13:21:07,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2019-09-20 13:21:07,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2019-09-20 13:21:07,550 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-20 13:21:07,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-09-20 13:21:07,550 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:21:07,550 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-20 13:21:07,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:21:07,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-20 13:21:07,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:21:07,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:21:07,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-09-20 13:21:07,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-09-20 13:21:07,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-09-20 13:21:07,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-09-20 13:21:08,275 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-20 13:21:09,117 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2019-09-20 13:21:10,050 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:21:10,050 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-20 13:21:10,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:21:10 BoogieIcfgContainer [2019-09-20 13:21:10,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:21:10,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:21:10,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:21:10,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:21:10,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:21:04" (1/3) ... [2019-09-20 13:21:10,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d0c9d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:21:10, skipping insertion in model container [2019-09-20 13:21:10,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:21:07" (2/3) ... [2019-09-20 13:21:10,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d0c9d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:21:10, skipping insertion in model container [2019-09-20 13:21:10,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:21:10" (3/3) ... [2019-09-20 13:21:10,061 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--cdc_mbim.ko-entry_point.cil.out.i [2019-09-20 13:21:10,071 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:21:10,082 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:21:10,100 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:21:10,145 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-20 13:21:10,150 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:21:10,151 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-20 13:21:10,152 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:21:10,152 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:21:10,152 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:21:10,156 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:21:10,156 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:21:10,157 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:21:10,198 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states. [2019-09-20 13:21:10,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-20 13:21:10,213 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:10,214 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:21:10,216 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:10,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:10,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1060978159, now seen corresponding path program 1 times [2019-09-20 13:21:10,224 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:10,224 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:10,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:10,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:10,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:10,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:10,847 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-09-20 13:21:10,849 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:21:10,850 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:21:10,853 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:21:10,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:21:10,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:10,870 INFO L87 Difference]: Start difference. First operand 766 states. Second operand 3 states. [2019-09-20 13:21:11,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:11,134 INFO L93 Difference]: Finished difference Result 2056 states and 2679 transitions. [2019-09-20 13:21:11,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:21:11,136 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2019-09-20 13:21:11,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:11,176 INFO L225 Difference]: With dead ends: 2056 [2019-09-20 13:21:11,176 INFO L226 Difference]: Without dead ends: 1327 [2019-09-20 13:21:11,187 INFO L636 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 [2019-09-20 13:21:11,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2019-09-20 13:21:11,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 1324. [2019-09-20 13:21:11,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1324 states. [2019-09-20 13:21:11,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1704 transitions. [2019-09-20 13:21:11,400 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1704 transitions. Word has length 56 [2019-09-20 13:21:11,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:11,401 INFO L475 AbstractCegarLoop]: Abstraction has 1324 states and 1704 transitions. [2019-09-20 13:21:11,401 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:21:11,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1704 transitions. [2019-09-20 13:21:11,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-09-20 13:21:11,417 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:11,417 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:21:11,418 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:11,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:11,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1505691106, now seen corresponding path program 1 times [2019-09-20 13:21:11,418 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:11,418 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:11,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:11,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:11,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:11,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:11,689 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-20 13:21:11,689 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:21:11,690 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-20 13:21:11,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:12,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:12,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 1596 conjuncts, 3 conjunts are in the unsatisfiable core [2019-09-20 13:21:12,258 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 13:21:12,309 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe [2019-09-20 13:21:12,317 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:21:12,318 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2019-09-20 13:21:12,319 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:21:12,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:21:12,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:21:12,320 INFO L87 Difference]: Start difference. First operand 1324 states and 1704 transitions. Second operand 6 states. [2019-09-20 13:21:12,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:12,542 INFO L93 Difference]: Finished difference Result 2647 states and 3421 transitions. [2019-09-20 13:21:12,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:21:12,543 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 72 [2019-09-20 13:21:12,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:12,550 INFO L225 Difference]: With dead ends: 2647 [2019-09-20 13:21:12,551 INFO L226 Difference]: Without dead ends: 1331 [2019-09-20 13:21:12,556 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:21:12,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2019-09-20 13:21:12,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 1331. [2019-09-20 13:21:12,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1331 states. [2019-09-20 13:21:12,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1331 states to 1331 states and 1711 transitions. [2019-09-20 13:21:12,606 INFO L78 Accepts]: Start accepts. Automaton has 1331 states and 1711 transitions. Word has length 72 [2019-09-20 13:21:12,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:12,606 INFO L475 AbstractCegarLoop]: Abstraction has 1331 states and 1711 transitions. [2019-09-20 13:21:12,606 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:21:12,606 INFO L276 IsEmpty]: Start isEmpty. Operand 1331 states and 1711 transitions. [2019-09-20 13:21:12,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-09-20 13:21:12,610 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:12,610 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:21:12,610 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:12,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:12,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1186048466, now seen corresponding path program 1 times [2019-09-20 13:21:12,611 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:12,611 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:12,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:12,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:12,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:12,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:12,807 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-09-20 13:21:12,808 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:21:12,808 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-20 13:21:13,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:13,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:13,285 INFO L256 TraceCheckSpWp]: Trace formula consists of 1614 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-20 13:21:13,291 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 13:21:13,328 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (3)] Exception during sending of exit command (exit): Broken pipe [2019-09-20 13:21:13,341 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-20 13:21:13,341 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2019-09-20 13:21:13,343 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:21:13,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:21:13,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:21:13,344 INFO L87 Difference]: Start difference. First operand 1331 states and 1711 transitions. Second operand 8 states. [2019-09-20 13:21:13,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:13,476 INFO L93 Difference]: Finished difference Result 2659 states and 3432 transitions. [2019-09-20 13:21:13,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:21:13,476 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 75 [2019-09-20 13:21:13,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:13,484 INFO L225 Difference]: With dead ends: 2659 [2019-09-20 13:21:13,484 INFO L226 Difference]: Without dead ends: 1334 [2019-09-20 13:21:13,489 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:21:13,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2019-09-20 13:21:13,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1334. [2019-09-20 13:21:13,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1334 states. [2019-09-20 13:21:13,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 1714 transitions. [2019-09-20 13:21:13,581 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 1714 transitions. Word has length 75 [2019-09-20 13:21:13,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:13,584 INFO L475 AbstractCegarLoop]: Abstraction has 1334 states and 1714 transitions. [2019-09-20 13:21:13,584 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:21:13,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 1714 transitions. [2019-09-20 13:21:13,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-09-20 13:21:13,592 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:13,598 INFO L407 BasicCegarLoop]: trace histogram [6, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:21:13,598 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:13,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:13,598 INFO L82 PathProgramCache]: Analyzing trace with hash -641612958, now seen corresponding path program 2 times [2019-09-20 13:21:13,599 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:13,599 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:13,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:13,608 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:13,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:13,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:13,806 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-09-20 13:21:13,807 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:21:13,807 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-20 13:21:14,056 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-09-20 13:21:14,299 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-09-20 13:21:14,300 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-20 13:21:14,304 INFO L256 TraceCheckSpWp]: Trace formula consists of 1312 conjuncts, 5 conjunts are in the unsatisfiable core [2019-09-20 13:21:14,312 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 13:21:14,366 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (4)] Exception during sending of exit command (exit): Broken pipe [2019-09-20 13:21:14,382 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:21:14,382 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2019-09-20 13:21:14,383 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:21:14,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:21:14,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:21:14,384 INFO L87 Difference]: Start difference. First operand 1334 states and 1714 transitions. Second operand 7 states. [2019-09-20 13:21:14,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:14,570 INFO L93 Difference]: Finished difference Result 2658 states and 3419 transitions. [2019-09-20 13:21:14,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:21:14,571 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2019-09-20 13:21:14,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:14,578 INFO L225 Difference]: With dead ends: 2658 [2019-09-20 13:21:14,578 INFO L226 Difference]: Without dead ends: 1334 [2019-09-20 13:21:14,583 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2019-09-20 13:21:14,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2019-09-20 13:21:14,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1334. [2019-09-20 13:21:14,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1334 states. [2019-09-20 13:21:14,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 1713 transitions. [2019-09-20 13:21:14,633 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 1713 transitions. Word has length 78 [2019-09-20 13:21:14,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:14,633 INFO L475 AbstractCegarLoop]: Abstraction has 1334 states and 1713 transitions. [2019-09-20 13:21:14,634 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:21:14,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 1713 transitions. [2019-09-20 13:21:14,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-09-20 13:21:14,636 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:14,636 INFO L407 BasicCegarLoop]: trace histogram [9, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:21:14,637 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:14,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:14,637 INFO L82 PathProgramCache]: Analyzing trace with hash -2136900435, now seen corresponding path program 1 times [2019-09-20 13:21:14,637 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:14,637 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:14,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:14,644 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-20 13:21:14,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:14,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:14,824 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-09-20 13:21:14,825 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:21:14,825 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:21:14,825 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:21:14,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:21:14,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:14,826 INFO L87 Difference]: Start difference. First operand 1334 states and 1713 transitions. Second operand 3 states. [2019-09-20 13:21:14,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:14,873 INFO L93 Difference]: Finished difference Result 1336 states and 1714 transitions. [2019-09-20 13:21:14,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:21:14,874 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 82 [2019-09-20 13:21:14,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:14,890 INFO L225 Difference]: With dead ends: 1336 [2019-09-20 13:21:14,890 INFO L226 Difference]: Without dead ends: 1333 [2019-09-20 13:21:14,892 INFO L636 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 [2019-09-20 13:21:14,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2019-09-20 13:21:14,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 1333. [2019-09-20 13:21:14,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1333 states. [2019-09-20 13:21:14,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 1711 transitions. [2019-09-20 13:21:14,995 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 1711 transitions. Word has length 82 [2019-09-20 13:21:14,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:14,995 INFO L475 AbstractCegarLoop]: Abstraction has 1333 states and 1711 transitions. [2019-09-20 13:21:14,995 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:21:14,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 1711 transitions. [2019-09-20 13:21:14,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-20 13:21:14,998 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:14,999 INFO L407 BasicCegarLoop]: trace histogram [9, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:21:14,999 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:14,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:14,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1819753327, now seen corresponding path program 1 times [2019-09-20 13:21:14,999 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:14,999 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:15,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:15,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:15,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:15,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:15,143 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-09-20 13:21:15,144 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:21:15,144 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:21:15,144 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:21:15,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:21:15,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:15,145 INFO L87 Difference]: Start difference. First operand 1333 states and 1711 transitions. Second operand 3 states. [2019-09-20 13:21:15,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:15,197 INFO L93 Difference]: Finished difference Result 1335 states and 1712 transitions. [2019-09-20 13:21:15,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:21:15,197 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 83 [2019-09-20 13:21:15,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:15,209 INFO L225 Difference]: With dead ends: 1335 [2019-09-20 13:21:15,209 INFO L226 Difference]: Without dead ends: 1332 [2019-09-20 13:21:15,210 INFO L636 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 [2019-09-20 13:21:15,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states. [2019-09-20 13:21:15,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 1332. [2019-09-20 13:21:15,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1332 states. [2019-09-20 13:21:15,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 1709 transitions. [2019-09-20 13:21:15,277 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 1709 transitions. Word has length 83 [2019-09-20 13:21:15,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:15,277 INFO L475 AbstractCegarLoop]: Abstraction has 1332 states and 1709 transitions. [2019-09-20 13:21:15,277 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:21:15,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 1709 transitions. [2019-09-20 13:21:15,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-20 13:21:15,280 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:15,280 INFO L407 BasicCegarLoop]: trace histogram [9, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:21:15,280 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:15,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:15,281 INFO L82 PathProgramCache]: Analyzing trace with hash -578122704, now seen corresponding path program 1 times [2019-09-20 13:21:15,281 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:15,281 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:15,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:15,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:15,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:15,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:15,400 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-09-20 13:21:15,400 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:21:15,400 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:21:15,401 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:21:15,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:21:15,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:15,401 INFO L87 Difference]: Start difference. First operand 1332 states and 1709 transitions. Second operand 3 states. [2019-09-20 13:21:15,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:15,527 INFO L93 Difference]: Finished difference Result 3933 states and 5080 transitions. [2019-09-20 13:21:15,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:21:15,528 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2019-09-20 13:21:15,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:15,543 INFO L225 Difference]: With dead ends: 3933 [2019-09-20 13:21:15,544 INFO L226 Difference]: Without dead ends: 2625 [2019-09-20 13:21:15,550 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:15,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2625 states. [2019-09-20 13:21:15,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2625 to 2618. [2019-09-20 13:21:15,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2618 states. [2019-09-20 13:21:15,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2618 states to 2618 states and 3378 transitions. [2019-09-20 13:21:15,671 INFO L78 Accepts]: Start accepts. Automaton has 2618 states and 3378 transitions. Word has length 84 [2019-09-20 13:21:15,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:15,672 INFO L475 AbstractCegarLoop]: Abstraction has 2618 states and 3378 transitions. [2019-09-20 13:21:15,672 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:21:15,672 INFO L276 IsEmpty]: Start isEmpty. Operand 2618 states and 3378 transitions. [2019-09-20 13:21:15,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-09-20 13:21:15,675 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:15,675 INFO L407 BasicCegarLoop]: trace histogram [9, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:21:15,675 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:15,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:15,675 INFO L82 PathProgramCache]: Analyzing trace with hash -742274188, now seen corresponding path program 1 times [2019-09-20 13:21:15,676 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:15,676 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:15,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:15,682 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:15,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:15,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:15,783 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-09-20 13:21:15,783 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:21:15,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:21:15,784 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:21:15,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:21:15,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:15,785 INFO L87 Difference]: Start difference. First operand 2618 states and 3378 transitions. Second operand 3 states. [2019-09-20 13:21:15,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:15,863 INFO L93 Difference]: Finished difference Result 2620 states and 3379 transitions. [2019-09-20 13:21:15,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:21:15,864 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2019-09-20 13:21:15,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:15,877 INFO L225 Difference]: With dead ends: 2620 [2019-09-20 13:21:15,878 INFO L226 Difference]: Without dead ends: 2598 [2019-09-20 13:21:15,879 INFO L636 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 [2019-09-20 13:21:15,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2598 states. [2019-09-20 13:21:16,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2598 to 2598. [2019-09-20 13:21:16,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2598 states. [2019-09-20 13:21:16,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2598 states to 2598 states and 3354 transitions. [2019-09-20 13:21:16,032 INFO L78 Accepts]: Start accepts. Automaton has 2598 states and 3354 transitions. Word has length 85 [2019-09-20 13:21:16,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:16,033 INFO L475 AbstractCegarLoop]: Abstraction has 2598 states and 3354 transitions. [2019-09-20 13:21:16,033 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:21:16,033 INFO L276 IsEmpty]: Start isEmpty. Operand 2598 states and 3354 transitions. [2019-09-20 13:21:16,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-09-20 13:21:16,036 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:16,036 INFO L407 BasicCegarLoop]: trace histogram [9, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:21:16,037 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:16,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:16,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1243667945, now seen corresponding path program 1 times [2019-09-20 13:21:16,037 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:16,037 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:16,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:16,046 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:16,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:16,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:16,167 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2019-09-20 13:21:16,168 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:21:16,168 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:21:16,168 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:21:16,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:21:16,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:16,169 INFO L87 Difference]: Start difference. First operand 2598 states and 3354 transitions. Second operand 3 states. [2019-09-20 13:21:16,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:16,407 INFO L93 Difference]: Finished difference Result 7596 states and 9757 transitions. [2019-09-20 13:21:16,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:21:16,408 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2019-09-20 13:21:16,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:16,440 INFO L225 Difference]: With dead ends: 7596 [2019-09-20 13:21:16,440 INFO L226 Difference]: Without dead ends: 5022 [2019-09-20 13:21:16,453 INFO L636 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 [2019-09-20 13:21:16,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5022 states. [2019-09-20 13:21:16,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5022 to 4994. [2019-09-20 13:21:16,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4994 states. [2019-09-20 13:21:16,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4994 states to 4994 states and 6400 transitions. [2019-09-20 13:21:16,690 INFO L78 Accepts]: Start accepts. Automaton has 4994 states and 6400 transitions. Word has length 95 [2019-09-20 13:21:16,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:16,691 INFO L475 AbstractCegarLoop]: Abstraction has 4994 states and 6400 transitions. [2019-09-20 13:21:16,691 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:21:16,691 INFO L276 IsEmpty]: Start isEmpty. Operand 4994 states and 6400 transitions. [2019-09-20 13:21:16,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-09-20 13:21:16,693 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:16,694 INFO L407 BasicCegarLoop]: trace histogram [9, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:21:16,694 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:16,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:16,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1745706685, now seen corresponding path program 1 times [2019-09-20 13:21:16,695 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:16,695 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:16,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:16,701 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:16,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:16,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:16,793 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2019-09-20 13:21:16,794 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:21:16,794 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:21:16,795 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:21:16,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:21:16,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:16,796 INFO L87 Difference]: Start difference. First operand 4994 states and 6400 transitions. Second operand 3 states. [2019-09-20 13:21:17,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:17,203 INFO L93 Difference]: Finished difference Result 12883 states and 16516 transitions. [2019-09-20 13:21:17,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:21:17,204 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2019-09-20 13:21:17,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:17,248 INFO L225 Difference]: With dead ends: 12883 [2019-09-20 13:21:17,249 INFO L226 Difference]: Without dead ends: 7913 [2019-09-20 13:21:17,267 INFO L636 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 [2019-09-20 13:21:17,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7913 states. [2019-09-20 13:21:17,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7913 to 7887. [2019-09-20 13:21:17,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7887 states. [2019-09-20 13:21:17,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7887 states to 7887 states and 10111 transitions. [2019-09-20 13:21:17,627 INFO L78 Accepts]: Start accepts. Automaton has 7887 states and 10111 transitions. Word has length 96 [2019-09-20 13:21:17,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:17,628 INFO L475 AbstractCegarLoop]: Abstraction has 7887 states and 10111 transitions. [2019-09-20 13:21:17,628 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:21:17,628 INFO L276 IsEmpty]: Start isEmpty. Operand 7887 states and 10111 transitions. [2019-09-20 13:21:17,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-09-20 13:21:17,640 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:17,641 INFO L407 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 3, 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] [2019-09-20 13:21:17,641 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:17,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:17,641 INFO L82 PathProgramCache]: Analyzing trace with hash -769206787, now seen corresponding path program 1 times [2019-09-20 13:21:17,642 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:17,642 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:17,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:17,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:17,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:17,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:17,914 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2019-09-20 13:21:17,914 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:21:17,915 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:21:17,915 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:21:17,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:21:17,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:21:17,917 INFO L87 Difference]: Start difference. First operand 7887 states and 10111 transitions. Second operand 7 states. [2019-09-20 13:21:23,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:23,229 INFO L93 Difference]: Finished difference Result 11992 states and 15430 transitions. [2019-09-20 13:21:23,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-20 13:21:23,230 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 175 [2019-09-20 13:21:23,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:23,297 INFO L225 Difference]: With dead ends: 11992 [2019-09-20 13:21:23,297 INFO L226 Difference]: Without dead ends: 11989 [2019-09-20 13:21:23,304 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:21:23,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11989 states. [2019-09-20 13:21:23,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11989 to 11963. [2019-09-20 13:21:23,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11963 states. [2019-09-20 13:21:23,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11963 states to 11963 states and 15399 transitions. [2019-09-20 13:21:23,858 INFO L78 Accepts]: Start accepts. Automaton has 11963 states and 15399 transitions. Word has length 175 [2019-09-20 13:21:23,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:23,858 INFO L475 AbstractCegarLoop]: Abstraction has 11963 states and 15399 transitions. [2019-09-20 13:21:23,858 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:21:23,859 INFO L276 IsEmpty]: Start isEmpty. Operand 11963 states and 15399 transitions. [2019-09-20 13:21:23,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-09-20 13:21:23,874 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:23,874 INFO L407 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 3, 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] [2019-09-20 13:21:23,875 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:23,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:23,875 INFO L82 PathProgramCache]: Analyzing trace with hash -2049070465, now seen corresponding path program 1 times [2019-09-20 13:21:23,875 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:23,876 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:23,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:23,884 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:23,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:24,253 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2019-09-20 13:21:24,254 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:21:24,254 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-20 13:21:24,255 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-20 13:21:24,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-20 13:21:24,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:21:24,256 INFO L87 Difference]: Start difference. First operand 11963 states and 15399 transitions. Second operand 9 states. [2019-09-20 13:21:24,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:24,665 INFO L93 Difference]: Finished difference Result 16085 states and 20702 transitions. [2019-09-20 13:21:24,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-20 13:21:24,666 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 175 [2019-09-20 13:21:24,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:24,724 INFO L225 Difference]: With dead ends: 16085 [2019-09-20 13:21:24,724 INFO L226 Difference]: Without dead ends: 11995 [2019-09-20 13:21:24,743 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:21:24,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11995 states. [2019-09-20 13:21:25,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11995 to 11923. [2019-09-20 13:21:25,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11923 states. [2019-09-20 13:21:25,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11923 states to 11923 states and 15303 transitions. [2019-09-20 13:21:25,225 INFO L78 Accepts]: Start accepts. Automaton has 11923 states and 15303 transitions. Word has length 175 [2019-09-20 13:21:25,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:25,226 INFO L475 AbstractCegarLoop]: Abstraction has 11923 states and 15303 transitions. [2019-09-20 13:21:25,226 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-20 13:21:25,226 INFO L276 IsEmpty]: Start isEmpty. Operand 11923 states and 15303 transitions. [2019-09-20 13:21:25,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-09-20 13:21:25,244 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:25,244 INFO L407 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 3, 3, 3, 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] [2019-09-20 13:21:25,245 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:25,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:25,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1328183779, now seen corresponding path program 1 times [2019-09-20 13:21:25,245 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:25,245 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:25,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:25,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:25,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:26,302 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2019-09-20 13:21:26,302 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:21:26,302 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:21:26,303 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:21:26,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:21:26,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:26,304 INFO L87 Difference]: Start difference. First operand 11923 states and 15303 transitions. Second operand 3 states. [2019-09-20 13:21:26,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:26,986 INFO L93 Difference]: Finished difference Result 30633 states and 39284 transitions. [2019-09-20 13:21:26,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:21:26,986 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2019-09-20 13:21:26,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:27,064 INFO L225 Difference]: With dead ends: 30633 [2019-09-20 13:21:27,064 INFO L226 Difference]: Without dead ends: 18743 [2019-09-20 13:21:27,102 INFO L636 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 [2019-09-20 13:21:27,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18743 states. [2019-09-20 13:21:27,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18743 to 18721. [2019-09-20 13:21:27,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18721 states. [2019-09-20 13:21:27,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18721 states to 18721 states and 23889 transitions. [2019-09-20 13:21:27,983 INFO L78 Accepts]: Start accepts. Automaton has 18721 states and 23889 transitions. Word has length 201 [2019-09-20 13:21:27,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:27,984 INFO L475 AbstractCegarLoop]: Abstraction has 18721 states and 23889 transitions. [2019-09-20 13:21:27,984 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:21:27,984 INFO L276 IsEmpty]: Start isEmpty. Operand 18721 states and 23889 transitions. [2019-09-20 13:21:28,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-09-20 13:21:28,001 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:28,002 INFO L407 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 3, 3, 3, 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] [2019-09-20 13:21:28,002 INFO L418 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:28,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:28,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1814389157, now seen corresponding path program 1 times [2019-09-20 13:21:28,003 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:28,003 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:28,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:28,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:28,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:28,144 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2019-09-20 13:21:28,146 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:21:28,147 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:21:28,147 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:21:28,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:21:28,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:21:28,148 INFO L87 Difference]: Start difference. First operand 18721 states and 23889 transitions. Second operand 3 states. [2019-09-20 13:21:29,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:29,057 INFO L93 Difference]: Finished difference Result 47508 states and 60610 transitions. [2019-09-20 13:21:29,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:21:29,058 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 200 [2019-09-20 13:21:29,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:29,163 INFO L225 Difference]: With dead ends: 47508 [2019-09-20 13:21:29,164 INFO L226 Difference]: Without dead ends: 28820 [2019-09-20 13:21:29,220 INFO L636 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 [2019-09-20 13:21:29,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28820 states. [2019-09-20 13:21:31,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28820 to 28738. [2019-09-20 13:21:31,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28738 states. [2019-09-20 13:21:31,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28738 states to 28738 states and 36506 transitions. [2019-09-20 13:21:31,212 INFO L78 Accepts]: Start accepts. Automaton has 28738 states and 36506 transitions. Word has length 200 [2019-09-20 13:21:31,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:31,212 INFO L475 AbstractCegarLoop]: Abstraction has 28738 states and 36506 transitions. [2019-09-20 13:21:31,212 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:21:31,213 INFO L276 IsEmpty]: Start isEmpty. Operand 28738 states and 36506 transitions. [2019-09-20 13:21:31,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-09-20 13:21:31,228 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:31,228 INFO L407 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 3, 3, 3, 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] [2019-09-20 13:21:31,228 INFO L418 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:31,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:31,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1984044813, now seen corresponding path program 1 times [2019-09-20 13:21:31,229 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:31,229 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:31,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:31,242 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:31,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:31,464 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2019-09-20 13:21:31,464 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:21:31,465 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:21:31,466 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:21:31,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:21:31,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:21:31,466 INFO L87 Difference]: Start difference. First operand 28738 states and 36506 transitions. Second operand 8 states. [2019-09-20 13:21:32,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:21:32,176 INFO L93 Difference]: Finished difference Result 38753 states and 49144 transitions. [2019-09-20 13:21:32,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:21:32,177 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 201 [2019-09-20 13:21:32,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:21:32,233 INFO L225 Difference]: With dead ends: 38753 [2019-09-20 13:21:32,233 INFO L226 Difference]: Without dead ends: 19417 [2019-09-20 13:21:32,273 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:21:32,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19417 states. [2019-09-20 13:21:32,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19417 to 19321. [2019-09-20 13:21:32,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19321 states. [2019-09-20 13:21:32,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19321 states to 19321 states and 24441 transitions. [2019-09-20 13:21:32,950 INFO L78 Accepts]: Start accepts. Automaton has 19321 states and 24441 transitions. Word has length 201 [2019-09-20 13:21:32,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:21:32,951 INFO L475 AbstractCegarLoop]: Abstraction has 19321 states and 24441 transitions. [2019-09-20 13:21:32,951 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:21:32,951 INFO L276 IsEmpty]: Start isEmpty. Operand 19321 states and 24441 transitions. [2019-09-20 13:21:32,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-09-20 13:21:32,974 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:21:32,974 INFO L407 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 3, 3, 3, 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] [2019-09-20 13:21:32,974 INFO L418 AbstractCegarLoop]: === Iteration 16 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:21:32,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:21:32,975 INFO L82 PathProgramCache]: Analyzing trace with hash 492815728, now seen corresponding path program 1 times [2019-09-20 13:21:32,975 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:21:32,975 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:21:32,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:32,980 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:32,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:21:33,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:33,173 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 18 proven. 24 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2019-09-20 13:21:33,173 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:21:33,173 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-20 13:21:33,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:21:34,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:21:34,092 INFO L256 TraceCheckSpWp]: Trace formula consists of 2212 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-20 13:21:34,110 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 13:21:34,213 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 66 proven. 6 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2019-09-20 13:21:34,232 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-20 13:21:34,233 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-09-20 13:21:34,235 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-20 13:21:34,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-20 13:21:34,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2019-09-20 13:21:34,236 INFO L87 Difference]: Start difference. First operand 19321 states and 24441 transitions. Second operand 12 states.