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-3.0/module_get_put-drivers-net-wan-farsync.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 13:48:45,149 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 13:48:45,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 13:48:45,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 13:48:45,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 13:48:45,173 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 13:48:45,175 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 13:48:45,182 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 13:48:45,184 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 13:48:45,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 13:48:45,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 13:48:45,190 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 13:48:45,190 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 13:48:45,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 13:48:45,193 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 13:48:45,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 13:48:45,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 13:48:45,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 13:48:45,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 13:48:45,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 13:48:45,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 13:48:45,210 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 13:48:45,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 13:48:45,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 13:48:45,217 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-08 13:48:45,217 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-08 13:48:45,217 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-08 13:48:45,220 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-08 13:48:45,221 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-08 13:48:45,222 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-08 13:48:45,223 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 13:48:45,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 13:48:45,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 13:48:45,226 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 13:48:45,227 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 13:48:45,227 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 13:48:45,228 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 13:48:45,228 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 13:48:45,229 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 13:48:45,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 13:48:45,230 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 13:48:45,231 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-08 13:48:45,245 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 13:48:45,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 13:48:45,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 13:48:45,247 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 13:48:45,247 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 13:48:45,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 13:48:45,247 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 13:48:45,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 13:48:45,248 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 13:48:45,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 13:48:45,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 13:48:45,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 13:48:45,249 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 13:48:45,249 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 13:48:45,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 13:48:45,249 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 13:48:45,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 13:48:45,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 13:48:45,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 13:48:45,250 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 13:48:45,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 13:48:45,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 13:48:45,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 13:48:45,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 13:48:45,251 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 13:48:45,251 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 13:48:45,251 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 13:48:45,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 13:48:45,252 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 13:48:45,303 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 13:48:45,315 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 13:48:45,319 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 13:48:45,320 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 13:48:45,321 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 13:48:45,322 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-wan-farsync.ko.cil.out.i [2019-09-08 13:48:45,384 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cfcd837a/48b4d49eb17a4a1d987d44edc0acee6d/FLAG16c449b3b [2019-09-08 13:48:46,225 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 13:48:46,226 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-wan-farsync.ko.cil.out.i [2019-09-08 13:48:46,271 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cfcd837a/48b4d49eb17a4a1d987d44edc0acee6d/FLAG16c449b3b [2019-09-08 13:48:46,743 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cfcd837a/48b4d49eb17a4a1d987d44edc0acee6d [2019-09-08 13:48:46,753 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 13:48:46,755 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 13:48:46,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 13:48:46,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 13:48:46,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 13:48:46,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:48:46" (1/1) ... [2019-09-08 13:48:46,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e7d7e4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:48:46, skipping insertion in model container [2019-09-08 13:48:46,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:48:46" (1/1) ... [2019-09-08 13:48:46,770 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 13:48:46,904 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 13:48:48,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 13:48:48,777 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 13:48:49,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 13:48:49,673 INFO L192 MainTranslator]: Completed translation [2019-09-08 13:48:49,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:48:49 WrapperNode [2019-09-08 13:48:49,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 13:48:49,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 13:48:49,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 13:48:49,675 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 13:48:49,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:48:49" (1/1) ... [2019-09-08 13:48:49,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:48:49" (1/1) ... [2019-09-08 13:48:49,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:48:49" (1/1) ... [2019-09-08 13:48:49,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:48:49" (1/1) ... [2019-09-08 13:48:50,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:48:49" (1/1) ... [2019-09-08 13:48:50,043 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:48:49" (1/1) ... [2019-09-08 13:48:50,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:48:49" (1/1) ... [2019-09-08 13:48:50,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 13:48:50,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 13:48:50,127 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 13:48:50,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 13:48:50,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:48:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 13:48:50,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 13:48:50,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 13:48:50,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2019-09-08 13:48:50,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~TO~VOID [2019-09-08 13:48:50,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~~__be16~0 [2019-09-08 13:48:50,237 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-09-08 13:48:50,237 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-09-08 13:48:50,238 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-09-08 13:48:50,239 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-09-08 13:48:50,240 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-09-08 13:48:50,240 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2019-09-08 13:48:50,241 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2019-09-08 13:48:50,243 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-09-08 13:48:50,243 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-09-08 13:48:50,245 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-09-08 13:48:50,246 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-09-08 13:48:50,250 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2019-09-08 13:48:50,250 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2019-09-08 13:48:50,250 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2019-09-08 13:48:50,251 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2019-09-08 13:48:50,251 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2019-09-08 13:48:50,251 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2019-09-08 13:48:50,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2019-09-08 13:48:50,251 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2019-09-08 13:48:50,251 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2019-09-08 13:48:50,252 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2019-09-08 13:48:50,252 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2019-09-08 13:48:50,252 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2019-09-08 13:48:50,252 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2019-09-08 13:48:50,252 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2019-09-08 13:48:50,252 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2019-09-08 13:48:50,253 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2019-09-08 13:48:50,253 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-09-08 13:48:50,253 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-09-08 13:48:50,253 INFO L138 BoogieDeclarations]: Found implementation of procedure is_device_dma_capable [2019-09-08 13:48:50,253 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2019-09-08 13:48:50,254 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_mask [2019-09-08 13:48:50,254 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_gfp_flags [2019-09-08 13:48:50,254 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent [2019-09-08 13:48:50,254 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_coherent [2019-09-08 13:48:50,254 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2019-09-08 13:48:50,255 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2019-09-08 13:48:50,255 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2019-09-08 13:48:50,255 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2019-09-08 13:48:50,255 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-09-08 13:48:50,255 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-09-08 13:48:50,256 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2019-09-08 13:48:50,256 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2019-09-08 13:48:50,256 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-09-08 13:48:50,256 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2019-09-08 13:48:50,257 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2019-09-08 13:48:50,257 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2019-09-08 13:48:50,257 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2019-09-08 13:48:50,257 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2019-09-08 13:48:50,258 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2019-09-08 13:48:50,258 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2019-09-08 13:48:50,258 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2019-09-08 13:48:50,258 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2019-09-08 13:48:50,259 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_type_trans [2019-09-08 13:48:50,259 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_q_work_item [2019-09-08 13:48:50,260 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_process_tx_work_q [2019-09-08 13:48:50,260 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_process_int_work_q [2019-09-08 13:48:50,260 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_cpureset [2019-09-08 13:48:50,260 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_cpurelease [2019-09-08 13:48:50,261 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_clear_intr [2019-09-08 13:48:50,261 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_enable_intr [2019-09-08 13:48:50,261 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_disable_intr [2019-09-08 13:48:50,262 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_process_rx_status [2019-09-08 13:48:50,262 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_init_dma [2019-09-08 13:48:50,262 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_tx_dma_complete [2019-09-08 13:48:50,263 INFO L138 BoogieDeclarations]: Found implementation of procedure farsync_type_trans [2019-09-08 13:48:50,263 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_rx_dma_complete [2019-09-08 13:48:50,263 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_rx_dma [2019-09-08 13:48:50,263 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_tx_dma [2019-09-08 13:48:50,264 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_issue_cmd [2019-09-08 13:48:50,265 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_op_raise [2019-09-08 13:48:50,265 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_op_lower [2019-09-08 13:48:50,265 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_rx_config [2019-09-08 13:48:50,265 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_tx_config [2019-09-08 13:48:50,265 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_intr_te1_alarm [2019-09-08 13:48:50,265 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_intr_ctlchg [2019-09-08 13:48:50,266 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_log_rx_error [2019-09-08 13:48:50,267 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_recover_rx_error [2019-09-08 13:48:50,267 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_intr_rx [2019-09-08 13:48:50,267 INFO L138 BoogieDeclarations]: Found implementation of procedure do_bottom_half_tx [2019-09-08 13:48:50,267 INFO L138 BoogieDeclarations]: Found implementation of procedure do_bottom_half_rx [2019-09-08 13:48:50,268 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_intr [2019-09-08 13:48:50,269 INFO L138 BoogieDeclarations]: Found implementation of procedure check_started_ok [2019-09-08 13:48:50,270 INFO L138 BoogieDeclarations]: Found implementation of procedure set_conf_from_info [2019-09-08 13:48:50,270 INFO L138 BoogieDeclarations]: Found implementation of procedure gather_conf_info [2019-09-08 13:48:50,271 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_set_iface [2019-09-08 13:48:50,271 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_get_iface [2019-09-08 13:48:50,271 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_ioctl [2019-09-08 13:48:50,272 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_openport [2019-09-08 13:48:50,272 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_closeport [2019-09-08 13:48:50,272 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_open [2019-09-08 13:48:50,272 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_close [2019-09-08 13:48:50,273 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_attach [2019-09-08 13:48:50,273 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_tx_timeout [2019-09-08 13:48:50,273 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_start_xmit [2019-09-08 13:48:50,273 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_init_card [2019-09-08 13:48:50,273 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_add_one [2019-09-08 13:48:50,274 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_remove_one [2019-09-08 13:48:50,274 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_init [2019-09-08 13:48:50,274 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_cleanup_module [2019-09-08 13:48:50,274 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 13:48:50,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-09-08 13:48:50,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-09-08 13:48:50,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-09-08 13:48:50,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-09-08 13:48:50,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-09-08 13:48:50,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-09-08 13:48:50,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-08 13:48:50,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2019-09-08 13:48:50,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2019-09-08 13:48:50,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_3 [2019-09-08 13:48:50,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-09-08 13:48:50,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2019-09-08 13:48:50,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __pci_register_driver [2019-09-08 13:48:50,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-09-08 13:48:50,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __tasklet_schedule [2019-09-08 13:48:50,279 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-09-08 13:48:50,279 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-09-08 13:48:50,279 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-09-08 13:48:50,281 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-09-08 13:48:50,281 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_hdlcdev [2019-09-08 13:48:50,281 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2019-09-08 13:48:50,281 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2019-09-08 13:48:50,282 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_alloc_coherent [2019-09-08 13:48:50,282 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_free_coherent [2019-09-08 13:48:50,282 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2019-09-08 13:48:50,283 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-09-08 13:48:50,283 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-09-08 13:48:50,283 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2019-09-08 13:48:50,283 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2019-09-08 13:48:50,284 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_close [2019-09-08 13:48:50,284 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_ioctl [2019-09-08 13:48:50,284 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_open [2019-09-08 13:48:50,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2019-09-08 13:48:50,285 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2019-09-08 13:48:50,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-09-08 13:48:50,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-08 13:48:50,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_int [2019-09-08 13:48:50,292 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2019-09-08 13:48:50,299 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-09-08 13:48:50,299 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2019-09-08 13:48:50,300 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2019-09-08 13:48:50,300 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2019-09-08 13:48:50,300 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2019-09-08 13:48:50,300 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_bus_read_config_byte [2019-09-08 13:48:50,301 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_bus_write_config_byte [2019-09-08 13:48:50,301 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2019-09-08 13:48:50,301 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2019-09-08 13:48:50,301 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2019-09-08 13:48:50,301 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_regions [2019-09-08 13:48:50,301 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2019-09-08 13:48:50,301 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2019-09-08 13:48:50,302 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-09-08 13:48:50,302 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2019-09-08 13:48:50,302 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2019-09-08 13:48:50,302 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2019-09-08 13:48:50,302 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-09-08 13:48:50,302 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_hdlc_device [2019-09-08 13:48:50,303 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-09-08 13:48:50,303 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-09-08 13:48:50,303 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-08 13:48:50,303 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-08 13:48:50,303 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-08 13:48:50,303 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-09-08 13:48:50,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 13:48:50,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 13:48:50,304 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-09-08 13:48:50,304 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-09-08 13:48:50,304 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-09-08 13:48:50,304 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-09-08 13:48:50,304 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-09-08 13:48:50,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 13:48:50,304 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-09-08 13:48:50,305 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-09-08 13:48:50,305 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-09-08 13:48:50,305 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-09-08 13:48:50,305 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2019-09-08 13:48:50,305 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-08 13:48:50,305 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2019-09-08 13:48:50,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-08 13:48:50,306 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2019-09-08 13:48:50,306 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-09-08 13:48:50,306 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-09-08 13:48:50,306 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-09-08 13:48:50,306 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-09-08 13:48:50,306 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-09-08 13:48:50,307 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-09-08 13:48:50,307 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-09-08 13:48:50,308 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2019-09-08 13:48:50,308 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2019-09-08 13:48:50,308 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2019-09-08 13:48:50,308 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2019-09-08 13:48:50,309 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2019-09-08 13:48:50,309 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2019-09-08 13:48:50,309 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2019-09-08 13:48:50,309 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2019-09-08 13:48:50,310 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-09-08 13:48:50,310 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2019-09-08 13:48:50,310 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2019-09-08 13:48:50,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-09-08 13:48:50,310 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2019-09-08 13:48:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2019-09-08 13:48:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2019-09-08 13:48:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2019-09-08 13:48:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2019-09-08 13:48:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2019-09-08 13:48:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-08 13:48:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2019-09-08 13:48:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2019-09-08 13:48:50,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_3 [2019-09-08 13:48:50,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-09-08 13:48:50,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-09-08 13:48:50,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-09-08 13:48:50,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-09-08 13:48:50,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-09-08 13:48:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-09-08 13:48:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-09-08 13:48:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure pci_bus_read_config_byte [2019-09-08 13:48:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure pci_bus_write_config_byte [2019-09-08 13:48:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2019-09-08 13:48:50,316 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2019-09-08 13:48:50,316 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2019-09-08 13:48:50,316 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2019-09-08 13:48:50,316 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2019-09-08 13:48:50,317 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_regions [2019-09-08 13:48:50,317 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2019-09-08 13:48:50,317 INFO L130 BoogieDeclarations]: Found specification of procedure __pci_register_driver [2019-09-08 13:48:50,317 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2019-09-08 13:48:50,317 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-09-08 13:48:50,318 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-09-08 13:48:50,318 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-09-08 13:48:50,318 INFO L130 BoogieDeclarations]: Found specification of procedure is_device_dma_capable [2019-09-08 13:48:50,318 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_alloc_coherent [2019-09-08 13:48:50,318 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_free_coherent [2019-09-08 13:48:50,319 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2019-09-08 13:48:50,319 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_mask [2019-09-08 13:48:50,319 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_gfp_flags [2019-09-08 13:48:50,319 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent [2019-09-08 13:48:50,319 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2019-09-08 13:48:50,320 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_coherent [2019-09-08 13:48:50,320 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~TO~VOID [2019-09-08 13:48:50,320 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2019-09-08 13:48:50,320 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2019-09-08 13:48:50,321 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2019-09-08 13:48:50,321 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2019-09-08 13:48:50,321 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2019-09-08 13:48:50,321 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2019-09-08 13:48:50,322 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-09-08 13:48:50,322 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-09-08 13:48:50,322 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-09-08 13:48:50,322 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-09-08 13:48:50,322 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2019-09-08 13:48:50,323 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-09-08 13:48:50,323 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2019-09-08 13:48:50,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 13:48:50,323 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2019-09-08 13:48:50,324 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2019-09-08 13:48:50,324 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-09-08 13:48:50,324 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2019-09-08 13:48:50,324 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2019-09-08 13:48:50,324 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2019-09-08 13:48:50,326 INFO L130 BoogieDeclarations]: Found specification of procedure __tasklet_schedule [2019-09-08 13:48:50,331 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2019-09-08 13:48:50,331 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2019-09-08 13:48:50,331 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2019-09-08 13:48:50,332 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2019-09-08 13:48:50,332 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2019-09-08 13:48:50,335 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2019-09-08 13:48:50,336 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2019-09-08 13:48:50,336 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2019-09-08 13:48:50,336 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2019-09-08 13:48:50,336 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2019-09-08 13:48:50,337 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2019-09-08 13:48:50,337 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2019-09-08 13:48:50,337 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2019-09-08 13:48:50,337 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2019-09-08 13:48:50,337 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_ioctl [2019-09-08 13:48:50,338 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_hdlc_device [2019-09-08 13:48:50,338 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_hdlcdev [2019-09-08 13:48:50,338 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2019-09-08 13:48:50,338 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_open [2019-09-08 13:48:50,338 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_close [2019-09-08 13:48:50,338 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_change_mtu [2019-09-08 13:48:50,339 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_start_xmit [2019-09-08 13:48:50,339 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_type_trans [2019-09-08 13:48:50,339 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~~__be16~0 [2019-09-08 13:48:50,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-08 13:48:50,339 INFO L130 BoogieDeclarations]: Found specification of procedure do_bottom_half_tx [2019-09-08 13:48:50,339 INFO L130 BoogieDeclarations]: Found specification of procedure do_bottom_half_rx [2019-09-08 13:48:50,340 INFO L130 BoogieDeclarations]: Found specification of procedure fst_process_tx_work_q [2019-09-08 13:48:50,340 INFO L130 BoogieDeclarations]: Found specification of procedure fst_process_int_work_q [2019-09-08 13:48:50,340 INFO L130 BoogieDeclarations]: Found specification of procedure fst_q_work_item [2019-09-08 13:48:50,340 INFO L130 BoogieDeclarations]: Found specification of procedure fst_cpureset [2019-09-08 13:48:50,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 13:48:50,341 INFO L130 BoogieDeclarations]: Found specification of procedure fst_cpurelease [2019-09-08 13:48:50,341 INFO L130 BoogieDeclarations]: Found specification of procedure fst_clear_intr [2019-09-08 13:48:50,341 INFO L130 BoogieDeclarations]: Found specification of procedure fst_enable_intr [2019-09-08 13:48:50,341 INFO L130 BoogieDeclarations]: Found specification of procedure fst_disable_intr [2019-09-08 13:48:50,342 INFO L130 BoogieDeclarations]: Found specification of procedure fst_process_rx_status [2019-09-08 13:48:50,342 INFO L130 BoogieDeclarations]: Found specification of procedure fst_init_dma [2019-09-08 13:48:50,342 INFO L130 BoogieDeclarations]: Found specification of procedure fst_tx_dma_complete [2019-09-08 13:48:50,342 INFO L130 BoogieDeclarations]: Found specification of procedure farsync_type_trans [2019-09-08 13:48:50,342 INFO L130 BoogieDeclarations]: Found specification of procedure fst_rx_dma_complete [2019-09-08 13:48:50,343 INFO L130 BoogieDeclarations]: Found specification of procedure fst_rx_dma [2019-09-08 13:48:50,343 INFO L130 BoogieDeclarations]: Found specification of procedure fst_tx_dma [2019-09-08 13:48:50,343 INFO L130 BoogieDeclarations]: Found specification of procedure fst_issue_cmd [2019-09-08 13:48:50,343 INFO L130 BoogieDeclarations]: Found specification of procedure fst_op_raise [2019-09-08 13:48:50,343 INFO L130 BoogieDeclarations]: Found specification of procedure fst_op_lower [2019-09-08 13:48:50,344 INFO L130 BoogieDeclarations]: Found specification of procedure fst_rx_config [2019-09-08 13:48:50,344 INFO L130 BoogieDeclarations]: Found specification of procedure fst_tx_config [2019-09-08 13:48:50,344 INFO L130 BoogieDeclarations]: Found specification of procedure fst_intr_te1_alarm [2019-09-08 13:48:50,344 INFO L130 BoogieDeclarations]: Found specification of procedure fst_intr_ctlchg [2019-09-08 13:48:50,344 INFO L130 BoogieDeclarations]: Found specification of procedure fst_log_rx_error [2019-09-08 13:48:50,345 INFO L130 BoogieDeclarations]: Found specification of procedure fst_recover_rx_error [2019-09-08 13:48:50,345 INFO L130 BoogieDeclarations]: Found specification of procedure fst_intr_rx [2019-09-08 13:48:50,345 INFO L130 BoogieDeclarations]: Found specification of procedure fst_intr [2019-09-08 13:48:50,345 INFO L130 BoogieDeclarations]: Found specification of procedure check_started_ok [2019-09-08 13:48:50,346 INFO L130 BoogieDeclarations]: Found specification of procedure set_conf_from_info [2019-09-08 13:48:50,346 INFO L130 BoogieDeclarations]: Found specification of procedure gather_conf_info [2019-09-08 13:48:50,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-08 13:48:50,346 INFO L130 BoogieDeclarations]: Found specification of procedure fst_set_iface [2019-09-08 13:48:50,346 INFO L130 BoogieDeclarations]: Found specification of procedure fst_get_iface [2019-09-08 13:48:50,347 INFO L130 BoogieDeclarations]: Found specification of procedure fst_ioctl [2019-09-08 13:48:50,347 INFO L130 BoogieDeclarations]: Found specification of procedure fst_openport [2019-09-08 13:48:50,347 INFO L130 BoogieDeclarations]: Found specification of procedure fst_closeport [2019-09-08 13:48:50,347 INFO L130 BoogieDeclarations]: Found specification of procedure fst_open [2019-09-08 13:48:50,347 INFO L130 BoogieDeclarations]: Found specification of procedure fst_close [2019-09-08 13:48:50,347 INFO L130 BoogieDeclarations]: Found specification of procedure fst_attach [2019-09-08 13:48:50,348 INFO L130 BoogieDeclarations]: Found specification of procedure fst_tx_timeout [2019-09-08 13:48:50,348 INFO L130 BoogieDeclarations]: Found specification of procedure fst_start_xmit [2019-09-08 13:48:50,348 INFO L130 BoogieDeclarations]: Found specification of procedure fst_init_card [2019-09-08 13:48:50,348 INFO L130 BoogieDeclarations]: Found specification of procedure fst_add_one [2019-09-08 13:48:50,348 INFO L130 BoogieDeclarations]: Found specification of procedure fst_remove_one [2019-09-08 13:48:50,349 INFO L130 BoogieDeclarations]: Found specification of procedure fst_init [2019-09-08 13:48:50,349 INFO L130 BoogieDeclarations]: Found specification of procedure fst_cleanup_module [2019-09-08 13:48:50,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-08 13:48:50,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-09-08 13:48:50,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-08 13:48:50,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-08 13:48:50,350 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 13:48:50,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-09-08 13:48:50,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_int [2019-09-08 13:48:50,350 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-08 13:48:50,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-08 13:48:50,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-08 13:48:50,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-09-08 13:48:50,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-08 13:48:50,351 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-08 13:48:50,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 13:48:50,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-08 13:48:50,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-08 13:48:50,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 13:48:50,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-09-08 13:48:50,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-09-08 13:48:50,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-09-08 13:48:50,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-09-08 13:48:53,470 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-08 13:48:53,521 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2019-09-08 13:48:53,522 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2019-09-08 13:48:53,525 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-08 13:49:30,473 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume !false; [2019-09-08 13:49:30,474 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##13: assume false; [2019-09-08 13:49:30,768 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-09-08 13:49:31,231 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-08 13:49:31,347 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##50: assume false; [2019-09-08 13:49:31,347 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##51: assume !false; [2019-09-08 13:49:31,446 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-08 13:49:31,450 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-08 13:49:59,328 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2019-09-08 13:49:59,329 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false;call ULTIMATE.dealloc(~#wrthdr~0.base, ~#wrthdr~0.offset);havoc ~#wrthdr~0.base, ~#wrthdr~0.offset;call ULTIMATE.dealloc(~#info~0.base, ~#info~0.offset);havoc ~#info~0.base, ~#info~0.offset; [2019-09-08 13:49:59,329 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##70: assume !false; [2019-09-08 13:49:59,329 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##69: assume false; [2019-09-08 13:49:59,337 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-08 13:49:59,338 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-08 13:50:34,556 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume !false; [2019-09-08 13:50:34,557 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume false; [2019-09-08 13:50:34,557 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume false; [2019-09-08 13:50:34,557 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume !false; [2019-09-08 13:50:35,556 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 13:50:35,557 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-08 13:50:35,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:50:35 BoogieIcfgContainer [2019-09-08 13:50:35,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 13:50:35,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 13:50:35,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 13:50:35,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 13:50:35,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:48:46" (1/3) ... [2019-09-08 13:50:35,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b331d78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:50:35, skipping insertion in model container [2019-09-08 13:50:35,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:48:49" (2/3) ... [2019-09-08 13:50:35,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b331d78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:50:35, skipping insertion in model container [2019-09-08 13:50:35,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:50:35" (3/3) ... [2019-09-08 13:50:35,567 INFO L109 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-wan-farsync.ko.cil.out.i [2019-09-08 13:50:35,577 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 13:50:35,588 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 13:50:35,605 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 13:50:35,649 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 13:50:35,650 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 13:50:35,650 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 13:50:35,650 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 13:50:35,650 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 13:50:35,650 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 13:50:35,651 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 13:50:35,651 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 13:50:35,651 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 13:50:35,714 INFO L276 IsEmpty]: Start isEmpty. Operand 1656 states. [2019-09-08 13:50:35,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-09-08 13:50:35,721 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:50:35,722 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:50:35,724 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:50:35,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:50:35,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1613100454, now seen corresponding path program 1 times [2019-09-08 13:50:35,731 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:50:35,732 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:50:35,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:50:35,798 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 13:50:35,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:50:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:50:36,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 13:50:36,268 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 13:50:36,268 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 13:50:36,272 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 13:50:36,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 13:50:36,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 13:50:36,289 INFO L87 Difference]: Start difference. First operand 1656 states. Second operand 3 states. [2019-09-08 13:50:36,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:50:36,677 INFO L93 Difference]: Finished difference Result 3990 states and 5269 transitions. [2019-09-08 13:50:36,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 13:50:36,679 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2019-09-08 13:50:36,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:50:36,736 INFO L225 Difference]: With dead ends: 3990 [2019-09-08 13:50:36,736 INFO L226 Difference]: Without dead ends: 2647 [2019-09-08 13:50:36,753 INFO L628 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 [2019-09-08 13:50:36,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2647 states. [2019-09-08 13:50:36,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2647 to 2644. [2019-09-08 13:50:37,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2644 states. [2019-09-08 13:50:37,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2644 states to 2644 states and 3464 transitions. [2019-09-08 13:50:37,024 INFO L78 Accepts]: Start accepts. Automaton has 2644 states and 3464 transitions. Word has length 34 [2019-09-08 13:50:37,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:50:37,024 INFO L475 AbstractCegarLoop]: Abstraction has 2644 states and 3464 transitions. [2019-09-08 13:50:37,025 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 13:50:37,025 INFO L276 IsEmpty]: Start isEmpty. Operand 2644 states and 3464 transitions. [2019-09-08 13:50:37,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-09-08 13:50:37,054 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:50:37,054 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:50:37,054 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:50:37,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:50:37,055 INFO L82 PathProgramCache]: Analyzing trace with hash -94653561, now seen corresponding path program 1 times [2019-09-08 13:50:37,055 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:50:37,058 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:50:37,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:50:37,067 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 13:50:37,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:50:37,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:50:37,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 13:50:37,348 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 13:50:37,348 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 13:50:37,351 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 13:50:37,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 13:50:37,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-08 13:50:37,353 INFO L87 Difference]: Start difference. First operand 2644 states and 3464 transitions. Second operand 7 states. [2019-09-08 13:50:37,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:50:37,532 INFO L93 Difference]: Finished difference Result 5185 states and 6791 transitions. [2019-09-08 13:50:37,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 13:50:37,533 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2019-09-08 13:50:37,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:50:37,550 INFO L225 Difference]: With dead ends: 5185 [2019-09-08 13:50:37,550 INFO L226 Difference]: Without dead ends: 2566 [2019-09-08 13:50:37,562 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-08 13:50:37,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2566 states. [2019-09-08 13:50:37,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2566 to 2564. [2019-09-08 13:50:37,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2564 states. [2019-09-08 13:50:37,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 3348 transitions. [2019-09-08 13:50:37,683 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 3348 transitions. Word has length 74 [2019-09-08 13:50:37,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:50:37,684 INFO L475 AbstractCegarLoop]: Abstraction has 2564 states and 3348 transitions. [2019-09-08 13:50:37,684 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 13:50:37,684 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 3348 transitions. [2019-09-08 13:50:37,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-09-08 13:50:37,697 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:50:37,697 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:50:37,697 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:50:37,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:50:37,697 INFO L82 PathProgramCache]: Analyzing trace with hash -2010628445, now seen corresponding path program 1 times [2019-09-08 13:50:37,698 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:50:37,698 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:50:37,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:50:37,701 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 13:50:37,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:50:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:50:38,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 13:50:38,010 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 13:50:38,010 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 13:50:38,010 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 13:50:38,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 13:50:38,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-09-08 13:50:38,011 INFO L87 Difference]: Start difference. First operand 2564 states and 3348 transitions. Second operand 7 states. [2019-09-08 13:52:49,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:52:49,147 INFO L93 Difference]: Finished difference Result 3869 states and 5035 transitions. [2019-09-08 13:52:49,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-08 13:52:49,148 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 80 [2019-09-08 13:52:49,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:52:49,170 INFO L225 Difference]: With dead ends: 3869 [2019-09-08 13:52:49,170 INFO L226 Difference]: Without dead ends: 3866 [2019-09-08 13:52:49,172 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-09-08 13:52:49,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3866 states. [2019-09-08 13:52:49,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3866 to 3838. [2019-09-08 13:52:49,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3838 states. [2019-09-08 13:52:49,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3838 states to 3838 states and 5007 transitions. [2019-09-08 13:52:49,321 INFO L78 Accepts]: Start accepts. Automaton has 3838 states and 5007 transitions. Word has length 80 [2019-09-08 13:52:49,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:52:49,322 INFO L475 AbstractCegarLoop]: Abstraction has 3838 states and 5007 transitions. [2019-09-08 13:52:49,322 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 13:52:49,323 INFO L276 IsEmpty]: Start isEmpty. Operand 3838 states and 5007 transitions. [2019-09-08 13:52:49,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-09-08 13:52:49,326 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:52:49,326 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:52:49,326 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:52:49,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:52:49,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1685010181, now seen corresponding path program 1 times [2019-09-08 13:52:49,327 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:52:49,327 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:52:49,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:52:49,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 13:52:49,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:52:49,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:52:49,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 13:52:49,494 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 13:52:49,494 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-08 13:52:49,495 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 13:52:49,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 13:52:49,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-08 13:52:49,495 INFO L87 Difference]: Start difference. First operand 3838 states and 5007 transitions. Second operand 8 states. [2019-09-08 13:52:49,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:52:49,671 INFO L93 Difference]: Finished difference Result 7667 states and 10008 transitions. [2019-09-08 13:52:49,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-08 13:52:49,672 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 85 [2019-09-08 13:52:49,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:52:49,692 INFO L225 Difference]: With dead ends: 7667 [2019-09-08 13:52:49,692 INFO L226 Difference]: Without dead ends: 3842 [2019-09-08 13:52:49,706 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-08 13:52:49,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3842 states. [2019-09-08 13:52:49,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3842 to 3839. [2019-09-08 13:52:49,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3839 states. [2019-09-08 13:52:49,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3839 states to 3839 states and 5006 transitions. [2019-09-08 13:52:49,855 INFO L78 Accepts]: Start accepts. Automaton has 3839 states and 5006 transitions. Word has length 85 [2019-09-08 13:52:49,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:52:49,855 INFO L475 AbstractCegarLoop]: Abstraction has 3839 states and 5006 transitions. [2019-09-08 13:52:49,855 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 13:52:49,855 INFO L276 IsEmpty]: Start isEmpty. Operand 3839 states and 5006 transitions. [2019-09-08 13:52:49,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-09-08 13:52:49,859 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:52:49,859 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:52:49,860 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:52:49,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:52:49,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1455843415, now seen corresponding path program 1 times [2019-09-08 13:52:49,860 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:52:49,860 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:52:49,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:52:49,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 13:52:49,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:52:49,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:52:50,017 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-09-08 13:52:50,017 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 13:52:50,017 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 13:52:50,018 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 13:52:50,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 13:52:50,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-08 13:52:50,019 INFO L87 Difference]: Start difference. First operand 3839 states and 5006 transitions. Second operand 5 states. [2019-09-08 13:52:50,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:52:50,297 INFO L93 Difference]: Finished difference Result 7823 states and 10271 transitions. [2019-09-08 13:52:50,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 13:52:50,298 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2019-09-08 13:52:50,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:52:50,320 INFO L225 Difference]: With dead ends: 7823 [2019-09-08 13:52:50,321 INFO L226 Difference]: Without dead ends: 4010 [2019-09-08 13:52:50,335 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-09-08 13:52:50,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4010 states. [2019-09-08 13:52:50,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4010 to 3977. [2019-09-08 13:52:50,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3977 states. [2019-09-08 13:52:50,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3977 states to 3977 states and 5232 transitions. [2019-09-08 13:52:50,504 INFO L78 Accepts]: Start accepts. Automaton has 3977 states and 5232 transitions. Word has length 101 [2019-09-08 13:52:50,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:52:50,505 INFO L475 AbstractCegarLoop]: Abstraction has 3977 states and 5232 transitions. [2019-09-08 13:52:50,505 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 13:52:50,505 INFO L276 IsEmpty]: Start isEmpty. Operand 3977 states and 5232 transitions. [2019-09-08 13:52:50,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-09-08 13:52:50,514 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:52:50,514 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:52:50,515 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:52:50,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:52:50,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1507782518, now seen corresponding path program 1 times [2019-09-08 13:52:50,515 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:52:50,515 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:52:50,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:52:50,523 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 13:52:50,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:52:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:52:50,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 13:52:50,688 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 13:52:50,688 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 13:52:50,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 13:52:51,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:52:51,048 INFO L256 TraceCheckSpWp]: Trace formula consists of 1767 conjuncts, 3 conjunts are in the unsatisfiable core [2019-09-08 13:52:51,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 13:52:51,127 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe [2019-09-08 13:52:51,135 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 13:52:51,135 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2019-09-08 13:52:51,136 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 13:52:51,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 13:52:51,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-08 13:52:51,137 INFO L87 Difference]: Start difference. First operand 3977 states and 5232 transitions. Second operand 5 states. [2019-09-08 13:52:51,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:52:51,343 INFO L93 Difference]: Finished difference Result 7943 states and 10453 transitions. [2019-09-08 13:52:51,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-08 13:52:51,343 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2019-09-08 13:52:51,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:52:51,376 INFO L225 Difference]: With dead ends: 7943 [2019-09-08 13:52:51,376 INFO L226 Difference]: Without dead ends: 3980 [2019-09-08 13:52:51,397 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-08 13:52:51,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3980 states. [2019-09-08 13:52:51,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3980 to 3979. [2019-09-08 13:52:51,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3979 states. [2019-09-08 13:52:51,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3979 states to 3979 states and 5234 transitions. [2019-09-08 13:52:51,620 INFO L78 Accepts]: Start accepts. Automaton has 3979 states and 5234 transitions. Word has length 104 [2019-09-08 13:52:51,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:52:51,622 INFO L475 AbstractCegarLoop]: Abstraction has 3979 states and 5234 transitions. [2019-09-08 13:52:51,622 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 13:52:51,623 INFO L276 IsEmpty]: Start isEmpty. Operand 3979 states and 5234 transitions. [2019-09-08 13:52:51,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-09-08 13:52:51,627 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:52:51,628 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-08 13:52:51,628 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:52:51,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:52:51,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1147829198, now seen corresponding path program 2 times [2019-09-08 13:52:51,629 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:52:51,629 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:52:51,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:52:51,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 13:52:51,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:52:51,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:52:51,830 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 13:52:51,830 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 13:52:51,830 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 13:52:51,866 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-09-08 13:52:52,609 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-09-08 13:52:52,609 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 13:52:52,625 INFO L256 TraceCheckSpWp]: Trace formula consists of 1761 conjuncts, 34 conjunts are in the unsatisfiable core [2019-09-08 13:52:52,645 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 13:52:52,898 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-08 13:52:52,907 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 13:52:52,907 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2019-09-08 13:52:52,908 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-08 13:52:52,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-08 13:52:52,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2019-09-08 13:52:52,908 INFO L87 Difference]: Start difference. First operand 3979 states and 5234 transitions. Second operand 14 states. [2019-09-08 13:53:30,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:53:30,930 INFO L93 Difference]: Finished difference Result 9243 states and 12164 transitions. [2019-09-08 13:53:30,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-09-08 13:53:30,931 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 106 [2019-09-08 13:53:30,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:53:30,966 INFO L225 Difference]: With dead ends: 9243 [2019-09-08 13:53:30,967 INFO L226 Difference]: Without dead ends: 5276 [2019-09-08 13:53:30,985 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2019-09-08 13:53:30,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5276 states. [2019-09-08 13:53:31,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5276 to 5271. [2019-09-08 13:53:31,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5271 states. [2019-09-08 13:53:31,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5271 states to 5271 states and 6921 transitions. [2019-09-08 13:53:31,212 INFO L78 Accepts]: Start accepts. Automaton has 5271 states and 6921 transitions. Word has length 106 [2019-09-08 13:53:31,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:53:31,212 INFO L475 AbstractCegarLoop]: Abstraction has 5271 states and 6921 transitions. [2019-09-08 13:53:31,212 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-08 13:53:31,212 INFO L276 IsEmpty]: Start isEmpty. Operand 5271 states and 6921 transitions. [2019-09-08 13:53:31,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-09-08 13:53:31,218 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:53:31,219 INFO L399 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:53:31,219 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:53:31,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:53:31,219 INFO L82 PathProgramCache]: Analyzing trace with hash -822313350, now seen corresponding path program 1 times [2019-09-08 13:53:31,219 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:53:31,220 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:53:31,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:53:31,222 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 13:53:31,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:53:31,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:53:31,511 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-08 13:53:31,512 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 13:53:31,512 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 13:53:31,513 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 13:53:31,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 13:53:31,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2019-09-08 13:53:31,513 INFO L87 Difference]: Start difference. First operand 5271 states and 6921 transitions. Second operand 9 states. [2019-09-08 13:55:09,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:55:09,099 INFO L93 Difference]: Finished difference Result 8176 states and 10818 transitions. [2019-09-08 13:55:09,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-08 13:55:09,100 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2019-09-08 13:55:09,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:55:09,134 INFO L225 Difference]: With dead ends: 8176 [2019-09-08 13:55:09,134 INFO L226 Difference]: Without dead ends: 6787 [2019-09-08 13:55:09,145 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2019-09-08 13:55:09,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6787 states. [2019-09-08 13:55:09,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6787 to 6468. [2019-09-08 13:55:09,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6468 states. [2019-09-08 13:55:09,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6468 states to 6468 states and 8479 transitions. [2019-09-08 13:55:09,389 INFO L78 Accepts]: Start accepts. Automaton has 6468 states and 8479 transitions. Word has length 110 [2019-09-08 13:55:09,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:55:09,389 INFO L475 AbstractCegarLoop]: Abstraction has 6468 states and 8479 transitions. [2019-09-08 13:55:09,389 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 13:55:09,389 INFO L276 IsEmpty]: Start isEmpty. Operand 6468 states and 8479 transitions. [2019-09-08 13:55:09,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2019-09-08 13:55:09,399 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:55:09,399 INFO L399 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:55:09,400 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:55:09,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:55:09,400 INFO L82 PathProgramCache]: Analyzing trace with hash -246170340, now seen corresponding path program 1 times [2019-09-08 13:55:09,400 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:55:09,400 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:55:09,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:09,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 13:55:09,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:55:09,702 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 13:55:09,702 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 13:55:09,702 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 13:55:09,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 13:55:10,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:55:10,081 INFO L256 TraceCheckSpWp]: Trace formula consists of 1843 conjuncts, 5 conjunts are in the unsatisfiable core [2019-09-08 13:55:10,087 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 13:55:10,120 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (4)] Exception during sending of exit command (exit): Broken pipe [2019-09-08 13:55:10,134 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 13:55:10,135 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 10 [2019-09-08 13:55:10,135 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-08 13:55:10,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-08 13:55:10,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-08 13:55:10,136 INFO L87 Difference]: Start difference. First operand 6468 states and 8479 transitions. Second operand 10 states. [2019-09-08 13:55:10,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:55:10,298 INFO L93 Difference]: Finished difference Result 12921 states and 16943 transitions. [2019-09-08 13:55:10,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 13:55:10,298 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 123 [2019-09-08 13:55:10,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:55:10,326 INFO L225 Difference]: With dead ends: 12921 [2019-09-08 13:55:10,326 INFO L226 Difference]: Without dead ends: 6471 [2019-09-08 13:55:10,354 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-08 13:55:10,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6471 states. [2019-09-08 13:55:10,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6471 to 6470. [2019-09-08 13:55:10,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6470 states. [2019-09-08 13:55:10,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6470 states to 6470 states and 8481 transitions. [2019-09-08 13:55:10,580 INFO L78 Accepts]: Start accepts. Automaton has 6470 states and 8481 transitions. Word has length 123 [2019-09-08 13:55:10,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:55:10,581 INFO L475 AbstractCegarLoop]: Abstraction has 6470 states and 8481 transitions. [2019-09-08 13:55:10,581 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-08 13:55:10,581 INFO L276 IsEmpty]: Start isEmpty. Operand 6470 states and 8481 transitions. [2019-09-08 13:55:10,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-09-08 13:55:10,588 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:55:10,588 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:55:10,589 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:55:10,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:55:10,589 INFO L82 PathProgramCache]: Analyzing trace with hash -536779944, now seen corresponding path program 2 times [2019-09-08 13:55:10,589 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:55:10,589 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:55:10,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:10,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 13:55:10,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:10,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:55:10,762 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 13:55:10,762 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 13:55:10,763 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 13:55:10,783 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 13:55:11,115 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-09-08 13:55:11,115 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 13:55:11,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 1825 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-08 13:55:11,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 13:55:11,185 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (5)] Exception during sending of exit command (exit): Broken pipe [2019-09-08 13:55:11,198 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 13:55:11,198 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2019-09-08 13:55:11,199 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-08 13:55:11,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-08 13:55:11,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2019-09-08 13:55:11,200 INFO L87 Difference]: Start difference. First operand 6470 states and 8481 transitions. Second operand 13 states. [2019-09-08 13:55:11,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:55:11,465 INFO L93 Difference]: Finished difference Result 12960 states and 17004 transitions. [2019-09-08 13:55:11,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-08 13:55:11,465 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 125 [2019-09-08 13:55:11,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:55:11,491 INFO L225 Difference]: With dead ends: 12960 [2019-09-08 13:55:11,491 INFO L226 Difference]: Without dead ends: 6510 [2019-09-08 13:55:11,512 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2019-09-08 13:55:11,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6510 states. [2019-09-08 13:55:11,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6510 to 6478. [2019-09-08 13:55:11,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6478 states. [2019-09-08 13:55:11,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6478 states to 6478 states and 8491 transitions. [2019-09-08 13:55:11,740 INFO L78 Accepts]: Start accepts. Automaton has 6478 states and 8491 transitions. Word has length 125 [2019-09-08 13:55:11,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:55:11,740 INFO L475 AbstractCegarLoop]: Abstraction has 6478 states and 8491 transitions. [2019-09-08 13:55:11,740 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-08 13:55:11,740 INFO L276 IsEmpty]: Start isEmpty. Operand 6478 states and 8491 transitions. [2019-09-08 13:55:11,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-09-08 13:55:11,749 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:55:11,749 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 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] [2019-09-08 13:55:11,749 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:55:11,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:55:11,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1953349856, now seen corresponding path program 1 times [2019-09-08 13:55:11,750 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:55:11,750 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:55:11,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:11,752 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 13:55:11,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:11,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:55:11,910 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-09-08 13:55:11,910 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 13:55:11,910 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 13:55:11,911 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 13:55:11,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 13:55:11,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-08 13:55:11,911 INFO L87 Difference]: Start difference. First operand 6478 states and 8491 transitions. Second operand 7 states. [2019-09-08 13:55:12,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:55:12,250 INFO L93 Difference]: Finished difference Result 13028 states and 17128 transitions. [2019-09-08 13:55:12,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-08 13:55:12,251 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 131 [2019-09-08 13:55:12,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:55:12,274 INFO L225 Difference]: With dead ends: 13028 [2019-09-08 13:55:12,274 INFO L226 Difference]: Without dead ends: 6515 [2019-09-08 13:55:12,290 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2019-09-08 13:55:12,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6515 states. [2019-09-08 13:55:12,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6515 to 6409. [2019-09-08 13:55:12,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6409 states. [2019-09-08 13:55:13,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6409 states to 6409 states and 8360 transitions. [2019-09-08 13:55:13,173 INFO L78 Accepts]: Start accepts. Automaton has 6409 states and 8360 transitions. Word has length 131 [2019-09-08 13:55:13,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:55:13,176 INFO L475 AbstractCegarLoop]: Abstraction has 6409 states and 8360 transitions. [2019-09-08 13:55:13,176 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 13:55:13,176 INFO L276 IsEmpty]: Start isEmpty. Operand 6409 states and 8360 transitions. [2019-09-08 13:55:13,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-09-08 13:55:13,184 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:55:13,185 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:55:13,185 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:55:13,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:55:13,186 INFO L82 PathProgramCache]: Analyzing trace with hash 907706117, now seen corresponding path program 1 times [2019-09-08 13:55:13,186 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:55:13,186 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:55:13,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:13,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 13:55:13,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:13,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:55:13,339 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2019-09-08 13:55:13,339 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 13:55:13,339 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 13:55:13,342 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 13:55:13,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 13:55:13,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 13:55:13,343 INFO L87 Difference]: Start difference. First operand 6409 states and 8360 transitions. Second operand 5 states. [2019-09-08 13:55:13,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:55:13,640 INFO L93 Difference]: Finished difference Result 12819 states and 16745 transitions. [2019-09-08 13:55:13,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 13:55:13,641 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2019-09-08 13:55:13,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:55:13,663 INFO L225 Difference]: With dead ends: 12819 [2019-09-08 13:55:13,664 INFO L226 Difference]: Without dead ends: 6444 [2019-09-08 13:55:13,680 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-09-08 13:55:13,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6444 states. [2019-09-08 13:55:13,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6444 to 6419. [2019-09-08 13:55:13,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6419 states. [2019-09-08 13:55:13,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6419 states to 6419 states and 8370 transitions. [2019-09-08 13:55:13,899 INFO L78 Accepts]: Start accepts. Automaton has 6419 states and 8370 transitions. Word has length 146 [2019-09-08 13:55:13,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:55:13,899 INFO L475 AbstractCegarLoop]: Abstraction has 6419 states and 8370 transitions. [2019-09-08 13:55:13,900 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 13:55:13,900 INFO L276 IsEmpty]: Start isEmpty. Operand 6419 states and 8370 transitions. [2019-09-08 13:55:13,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-09-08 13:55:13,909 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:55:13,909 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:55:13,910 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:55:13,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:55:13,911 INFO L82 PathProgramCache]: Analyzing trace with hash 705196260, now seen corresponding path program 1 times [2019-09-08 13:55:13,911 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:55:13,911 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:55:13,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:13,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 13:55:13,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:55:14,114 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-08 13:55:14,116 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 13:55:14,116 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 13:55:14,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 13:55:14,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:55:14,502 INFO L256 TraceCheckSpWp]: Trace formula consists of 1996 conjuncts, 7 conjunts are in the unsatisfiable core [2019-09-08 13:55:14,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 13:55:14,546 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-08 13:55:14,552 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 13:55:14,552 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 11 [2019-09-08 13:55:14,552 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-08 13:55:14,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-08 13:55:14,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2019-09-08 13:55:14,553 INFO L87 Difference]: Start difference. First operand 6419 states and 8370 transitions. Second operand 11 states. [2019-09-08 13:55:14,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:55:14,777 INFO L93 Difference]: Finished difference Result 12834 states and 16741 transitions. [2019-09-08 13:55:14,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-08 13:55:14,777 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 150 [2019-09-08 13:55:14,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:55:14,800 INFO L225 Difference]: With dead ends: 12834 [2019-09-08 13:55:14,801 INFO L226 Difference]: Without dead ends: 6437 [2019-09-08 13:55:14,815 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2019-09-08 13:55:14,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6437 states. [2019-09-08 13:55:15,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6437 to 6421. [2019-09-08 13:55:15,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6421 states. [2019-09-08 13:55:15,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6421 states to 6421 states and 8372 transitions. [2019-09-08 13:55:15,070 INFO L78 Accepts]: Start accepts. Automaton has 6421 states and 8372 transitions. Word has length 150 [2019-09-08 13:55:15,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:55:15,071 INFO L475 AbstractCegarLoop]: Abstraction has 6421 states and 8372 transitions. [2019-09-08 13:55:15,071 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-08 13:55:15,071 INFO L276 IsEmpty]: Start isEmpty. Operand 6421 states and 8372 transitions. [2019-09-08 13:55:15,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-09-08 13:55:15,080 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:55:15,080 INFO L399 BasicCegarLoop]: trace histogram [6, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:55:15,080 INFO L418 AbstractCegarLoop]: === Iteration 14 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:55:15,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:55:15,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1929430312, now seen corresponding path program 2 times [2019-09-08 13:55:15,081 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:55:15,081 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:55:15,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:15,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 13:55:15,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:55:15,317 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-08 13:55:15,317 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 13:55:15,317 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 13:55:15,339 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 13:55:15,867 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-08 13:55:15,867 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 13:55:15,877 INFO L256 TraceCheckSpWp]: Trace formula consists of 2002 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-08 13:55:15,881 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 13:55:15,914 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-08 13:55:15,933 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 13:55:15,934 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 12 [2019-09-08 13:55:15,936 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-08 13:55:15,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-08 13:55:15,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2019-09-08 13:55:15,938 INFO L87 Difference]: Start difference. First operand 6421 states and 8372 transitions. Second operand 12 states. [2019-09-08 13:55:16,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:55:16,143 INFO L93 Difference]: Finished difference Result 12836 states and 16743 transitions. [2019-09-08 13:55:16,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-08 13:55:16,144 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 152 [2019-09-08 13:55:16,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:55:16,165 INFO L225 Difference]: With dead ends: 12836 [2019-09-08 13:55:16,165 INFO L226 Difference]: Without dead ends: 6439 [2019-09-08 13:55:16,180 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2019-09-08 13:55:16,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6439 states. [2019-09-08 13:55:16,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6439 to 6423. [2019-09-08 13:55:16,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6423 states. [2019-09-08 13:55:16,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6423 states to 6423 states and 8374 transitions. [2019-09-08 13:55:16,381 INFO L78 Accepts]: Start accepts. Automaton has 6423 states and 8374 transitions. Word has length 152 [2019-09-08 13:55:16,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:55:16,381 INFO L475 AbstractCegarLoop]: Abstraction has 6423 states and 8374 transitions. [2019-09-08 13:55:16,382 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-08 13:55:16,382 INFO L276 IsEmpty]: Start isEmpty. Operand 6423 states and 8374 transitions. [2019-09-08 13:55:16,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-09-08 13:55:16,393 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:55:16,393 INFO L399 BasicCegarLoop]: trace histogram [7, 7, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:55:16,393 INFO L418 AbstractCegarLoop]: === Iteration 15 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:55:16,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:55:16,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1597315180, now seen corresponding path program 3 times [2019-09-08 13:55:16,394 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:55:16,394 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:55:16,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:16,396 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 13:55:16,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:55:16,736 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-08 13:55:16,737 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 13:55:16,737 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 13:55:16,759 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 13:55:17,300 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-09-08 13:55:17,301 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 13:55:17,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 1957 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-08 13:55:17,315 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 13:55:17,396 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2019-09-08 13:55:17,407 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 13:55:17,408 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2019-09-08 13:55:17,408 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-09-08 13:55:17,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-09-08 13:55:17,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2019-09-08 13:55:17,409 INFO L87 Difference]: Start difference. First operand 6423 states and 8374 transitions. Second operand 15 states. [2019-09-08 13:55:17,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:55:17,682 INFO L93 Difference]: Finished difference Result 11482 states and 14981 transitions. [2019-09-08 13:55:17,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-08 13:55:17,683 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 154 [2019-09-08 13:55:17,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:55:17,695 INFO L225 Difference]: With dead ends: 11482 [2019-09-08 13:55:17,696 INFO L226 Difference]: Without dead ends: 5046 [2019-09-08 13:55:17,708 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2019-09-08 13:55:17,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5046 states. [2019-09-08 13:55:17,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5046 to 5033. [2019-09-08 13:55:17,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5033 states. [2019-09-08 13:55:17,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5033 states to 5033 states and 6570 transitions. [2019-09-08 13:55:17,868 INFO L78 Accepts]: Start accepts. Automaton has 5033 states and 6570 transitions. Word has length 154 [2019-09-08 13:55:17,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:55:17,869 INFO L475 AbstractCegarLoop]: Abstraction has 5033 states and 6570 transitions. [2019-09-08 13:55:17,869 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-09-08 13:55:17,869 INFO L276 IsEmpty]: Start isEmpty. Operand 5033 states and 6570 transitions. [2019-09-08 13:55:17,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-09-08 13:55:17,876 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:55:17,877 INFO L399 BasicCegarLoop]: trace histogram [8, 8, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:55:17,877 INFO L418 AbstractCegarLoop]: === Iteration 16 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:55:17,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:55:17,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1872318861, now seen corresponding path program 1 times [2019-09-08 13:55:17,878 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:55:17,878 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:55:17,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:17,880 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 13:55:17,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:17,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:55:18,008 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2019-09-08 13:55:18,008 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 13:55:18,008 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-08 13:55:18,009 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-08 13:55:18,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-08 13:55:18,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 13:55:18,009 INFO L87 Difference]: Start difference. First operand 5033 states and 6570 transitions. Second operand 4 states. [2019-09-08 13:55:42,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:55:42,208 INFO L93 Difference]: Finished difference Result 10014 states and 13086 transitions. [2019-09-08 13:55:42,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 13:55:42,209 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2019-09-08 13:55:42,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:55:42,225 INFO L225 Difference]: With dead ends: 10014 [2019-09-08 13:55:42,225 INFO L226 Difference]: Without dead ends: 5021 [2019-09-08 13:55:42,238 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 13:55:42,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5021 states. [2019-09-08 13:55:42,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5021 to 5021. [2019-09-08 13:55:42,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5021 states. [2019-09-08 13:55:42,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5021 states to 5021 states and 6546 transitions. [2019-09-08 13:55:42,392 INFO L78 Accepts]: Start accepts. Automaton has 5021 states and 6546 transitions. Word has length 157 [2019-09-08 13:55:42,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:55:42,392 INFO L475 AbstractCegarLoop]: Abstraction has 5021 states and 6546 transitions. [2019-09-08 13:55:42,392 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-08 13:55:42,392 INFO L276 IsEmpty]: Start isEmpty. Operand 5021 states and 6546 transitions. [2019-09-08 13:55:42,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-09-08 13:55:42,401 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:55:42,401 INFO L399 BasicCegarLoop]: trace histogram [8, 8, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:55:42,401 INFO L418 AbstractCegarLoop]: === Iteration 17 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:55:42,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:55:42,402 INFO L82 PathProgramCache]: Analyzing trace with hash -422079948, now seen corresponding path program 1 times [2019-09-08 13:55:42,402 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:55:42,402 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:55:42,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:42,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 13:55:42,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:55:42,601 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:55:42,601 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 13:55:42,601 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 13:55:42,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 13:55:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:55:42,942 INFO L256 TraceCheckSpWp]: Trace formula consists of 2040 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-08 13:55:42,947 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 13:55:42,977 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (9)] Exception during sending of exit command (exit): Broken pipe [2019-09-08 13:55:42,994 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 13:55:42,994 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2019-09-08 13:55:42,995 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-08 13:55:42,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-08 13:55:43,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-09-08 13:55:43,002 INFO L87 Difference]: Start difference. First operand 5021 states and 6546 transitions. Second operand 12 states. [2019-09-08 13:55:43,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:55:43,169 INFO L93 Difference]: Finished difference Result 10017 states and 13067 transitions. [2019-09-08 13:55:43,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-08 13:55:43,170 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 175 [2019-09-08 13:55:43,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:55:43,186 INFO L225 Difference]: With dead ends: 10017 [2019-09-08 13:55:43,186 INFO L226 Difference]: Without dead ends: 5024 [2019-09-08 13:55:43,200 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-09-08 13:55:43,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5024 states. [2019-09-08 13:55:43,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5024 to 5023. [2019-09-08 13:55:43,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5023 states. [2019-09-08 13:55:43,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5023 states to 5023 states and 6548 transitions. [2019-09-08 13:55:43,344 INFO L78 Accepts]: Start accepts. Automaton has 5023 states and 6548 transitions. Word has length 175 [2019-09-08 13:55:43,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:55:43,345 INFO L475 AbstractCegarLoop]: Abstraction has 5023 states and 6548 transitions. [2019-09-08 13:55:43,345 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-08 13:55:43,345 INFO L276 IsEmpty]: Start isEmpty. Operand 5023 states and 6548 transitions. [2019-09-08 13:55:43,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-09-08 13:55:43,353 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:55:43,353 INFO L399 BasicCegarLoop]: trace histogram [9, 9, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:55:43,354 INFO L418 AbstractCegarLoop]: === Iteration 18 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:55:43,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:55:43,354 INFO L82 PathProgramCache]: Analyzing trace with hash -236989840, now seen corresponding path program 2 times [2019-09-08 13:55:43,354 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:55:43,354 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:55:43,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:43,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 13:55:43,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:43,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:55:43,710 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:55:43,710 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 13:55:43,711 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 13:55:43,739 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-09-08 13:55:44,346 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-08 13:55:44,346 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 13:55:44,360 INFO L256 TraceCheckSpWp]: Trace formula consists of 2046 conjuncts, 11 conjunts are in the unsatisfiable core [2019-09-08 13:55:44,365 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 13:55:44,399 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:55:44,412 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 13:55:44,412 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2019-09-08 13:55:44,413 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-08 13:55:44,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-08 13:55:44,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2019-09-08 13:55:44,416 INFO L87 Difference]: Start difference. First operand 5023 states and 6548 transitions. Second operand 13 states. [2019-09-08 13:55:44,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:55:44,620 INFO L93 Difference]: Finished difference Result 10019 states and 13069 transitions. [2019-09-08 13:55:44,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-08 13:55:44,620 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 177 [2019-09-08 13:55:44,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:55:44,635 INFO L225 Difference]: With dead ends: 10019 [2019-09-08 13:55:44,635 INFO L226 Difference]: Without dead ends: 5026 [2019-09-08 13:55:44,646 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2019-09-08 13:55:44,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5026 states. [2019-09-08 13:55:44,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5026 to 5025. [2019-09-08 13:55:44,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5025 states. [2019-09-08 13:55:44,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5025 states to 5025 states and 6550 transitions. [2019-09-08 13:55:44,805 INFO L78 Accepts]: Start accepts. Automaton has 5025 states and 6550 transitions. Word has length 177 [2019-09-08 13:55:44,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:55:44,806 INFO L475 AbstractCegarLoop]: Abstraction has 5025 states and 6550 transitions. [2019-09-08 13:55:44,806 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-08 13:55:44,806 INFO L276 IsEmpty]: Start isEmpty. Operand 5025 states and 6550 transitions. [2019-09-08 13:55:44,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-09-08 13:55:44,817 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:55:44,817 INFO L399 BasicCegarLoop]: trace histogram [10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:55:44,818 INFO L418 AbstractCegarLoop]: === Iteration 19 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:55:44,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:55:44,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1589877400, now seen corresponding path program 1 times [2019-09-08 13:55:44,818 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:55:44,819 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:55:44,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:44,822 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 13:55:44,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:44,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:55:45,104 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-09-08 13:55:45,104 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 13:55:45,104 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 13:55:45,133 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 13:55:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:55:45,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 2065 conjuncts, 12 conjunts are in the unsatisfiable core [2019-09-08 13:55:45,506 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 13:55:45,542 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-09-08 13:55:45,548 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 13:55:45,548 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2019-09-08 13:55:45,549 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-08 13:55:45,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-08 13:55:45,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2019-09-08 13:55:45,550 INFO L87 Difference]: Start difference. First operand 5025 states and 6550 transitions. Second operand 14 states. [2019-09-08 13:55:45,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:55:45,680 INFO L93 Difference]: Finished difference Result 10021 states and 13071 transitions. [2019-09-08 13:55:45,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-09-08 13:55:45,680 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 185 [2019-09-08 13:55:45,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:55:45,690 INFO L225 Difference]: With dead ends: 10021 [2019-09-08 13:55:45,690 INFO L226 Difference]: Without dead ends: 5028 [2019-09-08 13:55:45,698 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2019-09-08 13:55:45,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5028 states. [2019-09-08 13:55:45,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5028 to 5027. [2019-09-08 13:55:45,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5027 states. [2019-09-08 13:55:45,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5027 states to 5027 states and 6552 transitions. [2019-09-08 13:55:45,870 INFO L78 Accepts]: Start accepts. Automaton has 5027 states and 6552 transitions. Word has length 185 [2019-09-08 13:55:45,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:55:45,870 INFO L475 AbstractCegarLoop]: Abstraction has 5027 states and 6552 transitions. [2019-09-08 13:55:45,871 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-08 13:55:45,871 INFO L276 IsEmpty]: Start isEmpty. Operand 5027 states and 6552 transitions. [2019-09-08 13:55:45,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-09-08 13:55:45,880 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:55:45,880 INFO L399 BasicCegarLoop]: trace histogram [11, 11, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:55:45,880 INFO L418 AbstractCegarLoop]: === Iteration 20 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:55:45,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:55:45,881 INFO L82 PathProgramCache]: Analyzing trace with hash 739161576, now seen corresponding path program 3 times [2019-09-08 13:55:45,881 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:55:45,881 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:55:45,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:45,884 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 13:55:45,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:45,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:55:46,146 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:55:46,146 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 13:55:46,147 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 13:55:46,169 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 13:55:50,061 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2019-09-08 13:55:50,062 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 13:55:50,088 INFO L256 TraceCheckSpWp]: Trace formula consists of 2058 conjuncts, 13 conjunts are in the unsatisfiable core [2019-09-08 13:55:50,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 13:55:50,135 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:55:50,154 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 13:55:50,154 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 15 [2019-09-08 13:55:50,155 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-09-08 13:55:50,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-09-08 13:55:50,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2019-09-08 13:55:50,155 INFO L87 Difference]: Start difference. First operand 5027 states and 6552 transitions. Second operand 15 states. [2019-09-08 13:55:50,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:55:50,297 INFO L93 Difference]: Finished difference Result 10023 states and 13073 transitions. [2019-09-08 13:55:50,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-08 13:55:50,298 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 181 [2019-09-08 13:55:50,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:55:50,308 INFO L225 Difference]: With dead ends: 10023 [2019-09-08 13:55:50,308 INFO L226 Difference]: Without dead ends: 5030 [2019-09-08 13:55:50,316 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2019-09-08 13:55:50,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2019-09-08 13:55:50,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5029. [2019-09-08 13:55:50,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5029 states. [2019-09-08 13:55:50,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5029 states to 5029 states and 6554 transitions. [2019-09-08 13:55:50,487 INFO L78 Accepts]: Start accepts. Automaton has 5029 states and 6554 transitions. Word has length 181 [2019-09-08 13:55:50,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:55:50,487 INFO L475 AbstractCegarLoop]: Abstraction has 5029 states and 6554 transitions. [2019-09-08 13:55:50,488 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-09-08 13:55:50,488 INFO L276 IsEmpty]: Start isEmpty. Operand 5029 states and 6554 transitions. [2019-09-08 13:55:50,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-09-08 13:55:50,497 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:55:50,497 INFO L399 BasicCegarLoop]: trace histogram [12, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:55:50,498 INFO L418 AbstractCegarLoop]: === Iteration 21 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:55:50,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:55:50,498 INFO L82 PathProgramCache]: Analyzing trace with hash -68398880, now seen corresponding path program 2 times [2019-09-08 13:55:50,498 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:55:50,498 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:55:50,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:50,502 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 13:55:50,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:55:50,827 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-09-08 13:55:50,827 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 13:55:50,827 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 13:55:50,861 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-09-08 13:55:51,382 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-08 13:55:51,382 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 13:55:51,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 2077 conjuncts, 14 conjunts are in the unsatisfiable core [2019-09-08 13:55:51,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 13:55:51,559 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (13)] Exception during sending of exit command (exit): Broken pipe [2019-09-08 13:55:51,572 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 13:55:51,572 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 16 [2019-09-08 13:55:51,573 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-08 13:55:51,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-08 13:55:51,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2019-09-08 13:55:51,574 INFO L87 Difference]: Start difference. First operand 5029 states and 6554 transitions. Second operand 16 states. [2019-09-08 13:55:51,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:55:51,776 INFO L93 Difference]: Finished difference Result 10025 states and 13075 transitions. [2019-09-08 13:55:51,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-08 13:55:51,777 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 189 [2019-09-08 13:55:51,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:55:51,791 INFO L225 Difference]: With dead ends: 10025 [2019-09-08 13:55:51,791 INFO L226 Difference]: Without dead ends: 5032 [2019-09-08 13:55:51,802 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2019-09-08 13:55:51,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5032 states. [2019-09-08 13:55:51,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5032 to 5031. [2019-09-08 13:55:51,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5031 states. [2019-09-08 13:55:51,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5031 states to 5031 states and 6556 transitions. [2019-09-08 13:55:51,969 INFO L78 Accepts]: Start accepts. Automaton has 5031 states and 6556 transitions. Word has length 189 [2019-09-08 13:55:51,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:55:51,970 INFO L475 AbstractCegarLoop]: Abstraction has 5031 states and 6556 transitions. [2019-09-08 13:55:51,970 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-08 13:55:51,970 INFO L276 IsEmpty]: Start isEmpty. Operand 5031 states and 6556 transitions. [2019-09-08 13:55:51,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-09-08 13:55:51,980 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:55:51,981 INFO L399 BasicCegarLoop]: trace histogram [13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:55:51,981 INFO L418 AbstractCegarLoop]: === Iteration 22 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:55:51,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:55:51,982 INFO L82 PathProgramCache]: Analyzing trace with hash 49379356, now seen corresponding path program 3 times [2019-09-08 13:55:51,982 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:55:51,982 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:55:51,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:51,985 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 13:55:51,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:52,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:55:52,290 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-09-08 13:55:52,291 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 13:55:52,291 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 13:55:52,319 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 13:55:53,346 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-09-08 13:55:53,346 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 13:55:53,360 INFO L256 TraceCheckSpWp]: Trace formula consists of 2017 conjuncts, 5 conjunts are in the unsatisfiable core [2019-09-08 13:55:53,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 13:55:53,406 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2019-09-08 13:55:53,414 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 13:55:53,414 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 4] total 18 [2019-09-08 13:55:53,415 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-09-08 13:55:53,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-09-08 13:55:53,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=182, Unknown=0, NotChecked=0, Total=306 [2019-09-08 13:55:53,415 INFO L87 Difference]: Start difference. First operand 5031 states and 6556 transitions. Second operand 18 states. [2019-09-08 13:55:53,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:55:53,684 INFO L93 Difference]: Finished difference Result 9983 states and 13006 transitions. [2019-09-08 13:55:53,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-09-08 13:55:53,685 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 191 [2019-09-08 13:55:53,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:55:53,699 INFO L225 Difference]: With dead ends: 9983 [2019-09-08 13:55:53,699 INFO L226 Difference]: Without dead ends: 4990 [2019-09-08 13:55:53,711 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=182, Unknown=0, NotChecked=0, Total=306 [2019-09-08 13:55:53,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4990 states. [2019-09-08 13:55:53,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4990 to 4987. [2019-09-08 13:55:53,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4987 states. [2019-09-08 13:55:53,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4987 states to 4987 states and 6482 transitions. [2019-09-08 13:55:53,863 INFO L78 Accepts]: Start accepts. Automaton has 4987 states and 6482 transitions. Word has length 191 [2019-09-08 13:55:53,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:55:53,864 INFO L475 AbstractCegarLoop]: Abstraction has 4987 states and 6482 transitions. [2019-09-08 13:55:53,864 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-09-08 13:55:53,864 INFO L276 IsEmpty]: Start isEmpty. Operand 4987 states and 6482 transitions. [2019-09-08 13:55:53,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-09-08 13:55:53,874 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:55:53,874 INFO L399 BasicCegarLoop]: trace histogram [14, 14, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:55:53,875 INFO L418 AbstractCegarLoop]: === Iteration 23 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:55:53,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:55:53,875 INFO L82 PathProgramCache]: Analyzing trace with hash 402735772, now seen corresponding path program 4 times [2019-09-08 13:55:53,875 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:55:53,875 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:55:53,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:53,878 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 13:55:53,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:53,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:55:54,175 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:55:54,175 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 13:55:54,176 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 13:55:54,202 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 13:55:55,492 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-09-08 13:55:55,492 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 13:55:55,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 2076 conjuncts, 16 conjunts are in the unsatisfiable core [2019-09-08 13:55:55,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 13:55:55,537 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:55:55,553 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 13:55:55,553 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 18 [2019-09-08 13:55:55,554 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-09-08 13:55:55,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-09-08 13:55:55,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2019-09-08 13:55:55,555 INFO L87 Difference]: Start difference. First operand 4987 states and 6482 transitions. Second operand 18 states. [2019-09-08 13:55:55,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:55:55,714 INFO L93 Difference]: Finished difference Result 9937 states and 12927 transitions. [2019-09-08 13:55:55,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-09-08 13:55:55,714 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 187 [2019-09-08 13:55:55,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:55:55,724 INFO L225 Difference]: With dead ends: 9937 [2019-09-08 13:55:55,724 INFO L226 Difference]: Without dead ends: 4990 [2019-09-08 13:55:55,732 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2019-09-08 13:55:55,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4990 states. [2019-09-08 13:55:55,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4990 to 4989. [2019-09-08 13:55:55,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4989 states. [2019-09-08 13:55:55,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4989 states to 4989 states and 6484 transitions. [2019-09-08 13:55:55,858 INFO L78 Accepts]: Start accepts. Automaton has 4989 states and 6484 transitions. Word has length 187 [2019-09-08 13:55:55,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:55:55,858 INFO L475 AbstractCegarLoop]: Abstraction has 4989 states and 6484 transitions. [2019-09-08 13:55:55,858 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-09-08 13:55:55,858 INFO L276 IsEmpty]: Start isEmpty. Operand 4989 states and 6484 transitions. [2019-09-08 13:55:55,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-09-08 13:55:55,865 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:55:55,865 INFO L399 BasicCegarLoop]: trace histogram [15, 15, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:55:55,865 INFO L418 AbstractCegarLoop]: === Iteration 24 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:55:55,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:55:55,865 INFO L82 PathProgramCache]: Analyzing trace with hash 2136934616, now seen corresponding path program 5 times [2019-09-08 13:55:55,865 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:55:55,865 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:55:55,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:55,867 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 13:55:55,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:55:55,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:55:56,223 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:55:56,223 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 13:55:56,223 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 13:55:56,248 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-09-08 13:56:10,312 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2019-09-08 13:56:10,312 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 13:56:10,329 INFO L256 TraceCheckSpWp]: Trace formula consists of 2082 conjuncts, 17 conjunts are in the unsatisfiable core [2019-09-08 13:56:10,333 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 13:56:10,363 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:56:10,374 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 13:56:10,374 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 19 [2019-09-08 13:56:10,375 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-08 13:56:10,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-08 13:56:10,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2019-09-08 13:56:10,376 INFO L87 Difference]: Start difference. First operand 4989 states and 6484 transitions. Second operand 19 states. [2019-09-08 13:56:10,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:56:10,544 INFO L93 Difference]: Finished difference Result 9939 states and 12929 transitions. [2019-09-08 13:56:10,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-09-08 13:56:10,545 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 189 [2019-09-08 13:56:10,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:56:10,554 INFO L225 Difference]: With dead ends: 9939 [2019-09-08 13:56:10,555 INFO L226 Difference]: Without dead ends: 4992 [2019-09-08 13:56:10,562 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2019-09-08 13:56:10,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4992 states. [2019-09-08 13:56:10,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4992 to 4991. [2019-09-08 13:56:10,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4991 states. [2019-09-08 13:56:10,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4991 states to 4991 states and 6486 transitions. [2019-09-08 13:56:10,799 INFO L78 Accepts]: Start accepts. Automaton has 4991 states and 6486 transitions. Word has length 189 [2019-09-08 13:56:10,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:56:10,799 INFO L475 AbstractCegarLoop]: Abstraction has 4991 states and 6486 transitions. [2019-09-08 13:56:10,799 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-08 13:56:10,799 INFO L276 IsEmpty]: Start isEmpty. Operand 4991 states and 6486 transitions. [2019-09-08 13:56:10,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-09-08 13:56:10,806 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:56:10,806 INFO L399 BasicCegarLoop]: trace histogram [16, 16, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:56:10,806 INFO L418 AbstractCegarLoop]: === Iteration 25 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:56:10,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:56:10,807 INFO L82 PathProgramCache]: Analyzing trace with hash -2040254444, now seen corresponding path program 6 times [2019-09-08 13:56:10,807 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:56:10,807 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:56:10,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:56:10,809 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 13:56:10,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:56:10,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:56:11,214 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 0 proven. 256 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:56:11,215 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 13:56:11,215 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 13:56:11,240 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-09-08 13:56:23,896 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2019-09-08 13:56:23,896 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 13:56:23,919 INFO L256 TraceCheckSpWp]: Trace formula consists of 2088 conjuncts, 18 conjunts are in the unsatisfiable core [2019-09-08 13:56:23,923 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 13:56:23,986 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 0 proven. 256 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:56:24,008 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 13:56:24,009 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 20 [2019-09-08 13:56:24,009 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-08 13:56:24,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-08 13:56:24,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2019-09-08 13:56:24,010 INFO L87 Difference]: Start difference. First operand 4991 states and 6486 transitions. Second operand 20 states. [2019-09-08 13:56:24,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:56:24,181 INFO L93 Difference]: Finished difference Result 9941 states and 12931 transitions. [2019-09-08 13:56:24,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-09-08 13:56:24,181 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 191 [2019-09-08 13:56:24,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:56:24,191 INFO L225 Difference]: With dead ends: 9941 [2019-09-08 13:56:24,191 INFO L226 Difference]: Without dead ends: 4994 [2019-09-08 13:56:24,198 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2019-09-08 13:56:24,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4994 states. [2019-09-08 13:56:24,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4994 to 4993. [2019-09-08 13:56:24,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4993 states. [2019-09-08 13:56:24,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4993 states to 4993 states and 6488 transitions. [2019-09-08 13:56:24,319 INFO L78 Accepts]: Start accepts. Automaton has 4993 states and 6488 transitions. Word has length 191 [2019-09-08 13:56:24,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:56:24,319 INFO L475 AbstractCegarLoop]: Abstraction has 4993 states and 6488 transitions. [2019-09-08 13:56:24,320 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-09-08 13:56:24,320 INFO L276 IsEmpty]: Start isEmpty. Operand 4993 states and 6488 transitions. [2019-09-08 13:56:24,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-09-08 13:56:24,326 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:56:24,326 INFO L399 BasicCegarLoop]: trace histogram [17, 17, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:56:24,326 INFO L418 AbstractCegarLoop]: === Iteration 26 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:56:24,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:56:24,327 INFO L82 PathProgramCache]: Analyzing trace with hash -524519344, now seen corresponding path program 7 times [2019-09-08 13:56:24,327 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:56:24,327 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:56:24,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:56:24,330 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 13:56:24,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:56:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:56:24,697 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 289 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:56:24,697 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 13:56:24,697 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 13:56:24,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 13:56:25,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:56:25,107 INFO L256 TraceCheckSpWp]: Trace formula consists of 2094 conjuncts, 19 conjunts are in the unsatisfiable core [2019-09-08 13:56:25,112 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 13:56:25,144 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 289 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:56:25,151 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 13:56:25,151 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 21 [2019-09-08 13:56:25,152 INFO L454 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-09-08 13:56:25,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-09-08 13:56:25,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2019-09-08 13:56:25,152 INFO L87 Difference]: Start difference. First operand 4993 states and 6488 transitions. Second operand 21 states. [2019-09-08 13:56:25,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:56:25,332 INFO L93 Difference]: Finished difference Result 9943 states and 12933 transitions. [2019-09-08 13:56:25,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-09-08 13:56:25,332 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 193 [2019-09-08 13:56:25,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:56:25,342 INFO L225 Difference]: With dead ends: 9943 [2019-09-08 13:56:25,342 INFO L226 Difference]: Without dead ends: 4996 [2019-09-08 13:56:25,352 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2019-09-08 13:56:25,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4996 states. [2019-09-08 13:56:25,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4996 to 4995. [2019-09-08 13:56:25,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4995 states. [2019-09-08 13:56:25,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4995 states to 4995 states and 6490 transitions. [2019-09-08 13:56:25,460 INFO L78 Accepts]: Start accepts. Automaton has 4995 states and 6490 transitions. Word has length 193 [2019-09-08 13:56:25,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:56:25,460 INFO L475 AbstractCegarLoop]: Abstraction has 4995 states and 6490 transitions. [2019-09-08 13:56:25,460 INFO L476 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-09-08 13:56:25,460 INFO L276 IsEmpty]: Start isEmpty. Operand 4995 states and 6490 transitions. [2019-09-08 13:56:25,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-09-08 13:56:25,464 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:56:25,464 INFO L399 BasicCegarLoop]: trace histogram [18, 18, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:56:25,464 INFO L418 AbstractCegarLoop]: === Iteration 27 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:56:25,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:56:25,465 INFO L82 PathProgramCache]: Analyzing trace with hash 102998412, now seen corresponding path program 8 times [2019-09-08 13:56:25,465 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:56:25,465 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:56:25,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:56:25,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 13:56:25,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:56:25,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:56:25,928 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:56:25,928 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 13:56:25,928 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 13:56:25,964 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 13:56:26,629 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-08 13:56:26,630 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 13:56:26,639 INFO L256 TraceCheckSpWp]: Trace formula consists of 2100 conjuncts, 20 conjunts are in the unsatisfiable core [2019-09-08 13:56:26,644 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 13:56:26,680 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (19)] Exception during sending of exit command (exit): Broken pipe [2019-09-08 13:56:26,692 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 13:56:26,693 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 22 [2019-09-08 13:56:26,693 INFO L454 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-09-08 13:56:26,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-09-08 13:56:26,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2019-09-08 13:56:26,694 INFO L87 Difference]: Start difference. First operand 4995 states and 6490 transitions. Second operand 22 states. [2019-09-08 13:56:27,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:56:27,055 INFO L93 Difference]: Finished difference Result 9945 states and 12935 transitions. [2019-09-08 13:56:27,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-09-08 13:56:27,056 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 195 [2019-09-08 13:56:27,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:56:27,071 INFO L225 Difference]: With dead ends: 9945 [2019-09-08 13:56:27,072 INFO L226 Difference]: Without dead ends: 4998 [2019-09-08 13:56:27,082 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2019-09-08 13:56:27,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4998 states. [2019-09-08 13:56:27,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4998 to 4997. [2019-09-08 13:56:27,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4997 states. [2019-09-08 13:56:27,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4997 states to 4997 states and 6492 transitions. [2019-09-08 13:56:27,233 INFO L78 Accepts]: Start accepts. Automaton has 4997 states and 6492 transitions. Word has length 195 [2019-09-08 13:56:27,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:56:27,234 INFO L475 AbstractCegarLoop]: Abstraction has 4997 states and 6492 transitions. [2019-09-08 13:56:27,234 INFO L476 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-09-08 13:56:27,234 INFO L276 IsEmpty]: Start isEmpty. Operand 4997 states and 6492 transitions. [2019-09-08 13:56:27,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-09-08 13:56:27,240 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:56:27,240 INFO L399 BasicCegarLoop]: trace histogram [19, 19, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:56:27,240 INFO L418 AbstractCegarLoop]: === Iteration 28 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:56:27,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:56:27,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1852140488, now seen corresponding path program 9 times [2019-09-08 13:56:27,241 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:56:27,241 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:56:27,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:56:27,243 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 13:56:27,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:56:27,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:56:27,828 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 361 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:56:27,828 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 13:56:27,828 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 13:56:27,865 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 13:56:37,418 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 20 check-sat command(s) [2019-09-08 13:56:37,418 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 13:56:37,437 INFO L256 TraceCheckSpWp]: Trace formula consists of 2106 conjuncts, 21 conjunts are in the unsatisfiable core [2019-09-08 13:56:37,441 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 13:56:37,476 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 361 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:56:37,498 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 13:56:37,498 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 23 [2019-09-08 13:56:37,499 INFO L454 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-09-08 13:56:37,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-09-08 13:56:37,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2019-09-08 13:56:37,500 INFO L87 Difference]: Start difference. First operand 4997 states and 6492 transitions. Second operand 23 states. [2019-09-08 13:56:37,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:56:37,716 INFO L93 Difference]: Finished difference Result 9947 states and 12937 transitions. [2019-09-08 13:56:37,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-09-08 13:56:37,716 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 197 [2019-09-08 13:56:37,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:56:37,727 INFO L225 Difference]: With dead ends: 9947 [2019-09-08 13:56:37,727 INFO L226 Difference]: Without dead ends: 5000 [2019-09-08 13:56:37,735 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2019-09-08 13:56:37,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5000 states. [2019-09-08 13:56:37,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5000 to 4999. [2019-09-08 13:56:37,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4999 states. [2019-09-08 13:56:37,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4999 states to 4999 states and 6494 transitions. [2019-09-08 13:56:37,843 INFO L78 Accepts]: Start accepts. Automaton has 4999 states and 6494 transitions. Word has length 197 [2019-09-08 13:56:37,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:56:37,844 INFO L475 AbstractCegarLoop]: Abstraction has 4999 states and 6494 transitions. [2019-09-08 13:56:37,844 INFO L476 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-09-08 13:56:37,844 INFO L276 IsEmpty]: Start isEmpty. Operand 4999 states and 6494 transitions. [2019-09-08 13:56:37,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-09-08 13:56:37,849 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:56:37,850 INFO L399 BasicCegarLoop]: trace histogram [20, 20, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:56:37,850 INFO L418 AbstractCegarLoop]: === Iteration 29 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:56:37,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:56:37,850 INFO L82 PathProgramCache]: Analyzing trace with hash -849504508, now seen corresponding path program 10 times [2019-09-08 13:56:37,850 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:56:37,850 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:56:37,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:56:37,853 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 13:56:37,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:56:37,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:56:38,367 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:56:38,368 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 13:56:38,368 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 13:56:38,393 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-09-08 13:56:43,110 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-09-08 13:56:43,110 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 13:56:43,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 2112 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-08 13:56:43,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 13:56:43,162 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:56:43,172 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 13:56:43,172 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 24 [2019-09-08 13:56:43,173 INFO L454 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-09-08 13:56:43,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-09-08 13:56:43,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2019-09-08 13:56:43,174 INFO L87 Difference]: Start difference. First operand 4999 states and 6494 transitions. Second operand 24 states. [2019-09-08 13:56:43,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:56:43,380 INFO L93 Difference]: Finished difference Result 9949 states and 12939 transitions. [2019-09-08 13:56:43,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-09-08 13:56:43,380 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 199 [2019-09-08 13:56:43,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:56:43,396 INFO L225 Difference]: With dead ends: 9949 [2019-09-08 13:56:43,396 INFO L226 Difference]: Without dead ends: 5002 [2019-09-08 13:56:43,407 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2019-09-08 13:56:43,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5002 states. [2019-09-08 13:56:43,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5002 to 5001. [2019-09-08 13:56:43,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5001 states. [2019-09-08 13:56:43,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5001 states to 5001 states and 6496 transitions. [2019-09-08 13:56:43,550 INFO L78 Accepts]: Start accepts. Automaton has 5001 states and 6496 transitions. Word has length 199 [2019-09-08 13:56:43,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:56:43,550 INFO L475 AbstractCegarLoop]: Abstraction has 5001 states and 6496 transitions. [2019-09-08 13:56:43,551 INFO L476 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-09-08 13:56:43,551 INFO L276 IsEmpty]: Start isEmpty. Operand 5001 states and 6496 transitions. [2019-09-08 13:56:43,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-09-08 13:56:43,554 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:56:43,554 INFO L399 BasicCegarLoop]: trace histogram [21, 21, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:56:43,555 INFO L418 AbstractCegarLoop]: === Iteration 30 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:56:43,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:56:43,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1324868416, now seen corresponding path program 11 times [2019-09-08 13:56:43,555 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:56:43,555 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:56:43,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:56:43,557 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 13:56:43,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:56:43,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:56:44,117 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 0 proven. 441 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:56:44,117 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 13:56:44,117 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 13:56:44,146 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-09-08 13:57:15,166 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 22 check-sat command(s) [2019-09-08 13:57:15,166 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 13:57:15,188 INFO L256 TraceCheckSpWp]: Trace formula consists of 2118 conjuncts, 23 conjunts are in the unsatisfiable core [2019-09-08 13:57:15,192 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 13:57:15,234 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 0 proven. 441 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:57:15,250 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 13:57:15,250 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 25 [2019-09-08 13:57:15,250 INFO L454 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-09-08 13:57:15,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-09-08 13:57:15,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2019-09-08 13:57:15,251 INFO L87 Difference]: Start difference. First operand 5001 states and 6496 transitions. Second operand 25 states. [2019-09-08 13:57:15,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:57:15,449 INFO L93 Difference]: Finished difference Result 9951 states and 12941 transitions. [2019-09-08 13:57:15,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-09-08 13:57:15,449 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 201 [2019-09-08 13:57:15,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:57:15,459 INFO L225 Difference]: With dead ends: 9951 [2019-09-08 13:57:15,459 INFO L226 Difference]: Without dead ends: 5004 [2019-09-08 13:57:15,467 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2019-09-08 13:57:15,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5004 states. [2019-09-08 13:57:15,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5004 to 5003. [2019-09-08 13:57:15,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5003 states. [2019-09-08 13:57:15,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5003 states to 5003 states and 6498 transitions. [2019-09-08 13:57:15,563 INFO L78 Accepts]: Start accepts. Automaton has 5003 states and 6498 transitions. Word has length 201 [2019-09-08 13:57:15,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:57:15,563 INFO L475 AbstractCegarLoop]: Abstraction has 5003 states and 6498 transitions. [2019-09-08 13:57:15,563 INFO L476 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-09-08 13:57:15,563 INFO L276 IsEmpty]: Start isEmpty. Operand 5003 states and 6498 transitions. [2019-09-08 13:57:15,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-09-08 13:57:15,567 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:57:15,567 INFO L399 BasicCegarLoop]: trace histogram [22, 22, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:57:15,567 INFO L418 AbstractCegarLoop]: === Iteration 31 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:57:15,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:57:15,568 INFO L82 PathProgramCache]: Analyzing trace with hash -751824772, now seen corresponding path program 12 times [2019-09-08 13:57:15,568 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:57:15,568 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:57:15,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:57:15,570 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 13:57:15,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:57:15,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:57:16,057 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:57:16,057 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 13:57:16,057 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 13:57:16,077 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-09-08 13:58:19,273 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 23 check-sat command(s) [2019-09-08 13:58:19,273 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 13:58:19,311 INFO L256 TraceCheckSpWp]: Trace formula consists of 2124 conjuncts, 26 conjunts are in the unsatisfiable core [2019-09-08 13:58:19,314 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 13:58:19,457 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:58:19,474 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 13:58:19,474 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 26 [2019-09-08 13:58:19,475 INFO L454 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-09-08 13:58:19,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-09-08 13:58:19,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2019-09-08 13:58:19,476 INFO L87 Difference]: Start difference. First operand 5003 states and 6498 transitions. Second operand 26 states. [2019-09-08 13:58:19,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:58:19,721 INFO L93 Difference]: Finished difference Result 9953 states and 12943 transitions. [2019-09-08 13:58:19,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-09-08 13:58:19,725 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 203 [2019-09-08 13:58:19,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:58:19,735 INFO L225 Difference]: With dead ends: 9953 [2019-09-08 13:58:19,735 INFO L226 Difference]: Without dead ends: 5006 [2019-09-08 13:58:19,743 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2019-09-08 13:58:19,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5006 states. [2019-09-08 13:58:19,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5006 to 5005. [2019-09-08 13:58:19,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5005 states. [2019-09-08 13:58:19,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5005 states to 5005 states and 6500 transitions. [2019-09-08 13:58:19,852 INFO L78 Accepts]: Start accepts. Automaton has 5005 states and 6500 transitions. Word has length 203 [2019-09-08 13:58:19,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:58:19,852 INFO L475 AbstractCegarLoop]: Abstraction has 5005 states and 6500 transitions. [2019-09-08 13:58:19,852 INFO L476 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-09-08 13:58:19,852 INFO L276 IsEmpty]: Start isEmpty. Operand 5005 states and 6500 transitions. [2019-09-08 13:58:19,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-09-08 13:58:19,856 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:58:19,856 INFO L399 BasicCegarLoop]: trace histogram [23, 23, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:58:19,857 INFO L418 AbstractCegarLoop]: === Iteration 32 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:58:19,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:58:19,858 INFO L82 PathProgramCache]: Analyzing trace with hash 705814200, now seen corresponding path program 13 times [2019-09-08 13:58:19,858 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:58:19,858 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:58:19,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:58:19,860 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 13:58:19,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:58:19,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:58:20,460 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 0 proven. 529 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:58:20,460 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 13:58:20,460 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 13:58:20,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 13:58:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:58:20,892 INFO L256 TraceCheckSpWp]: Trace formula consists of 2130 conjuncts, 25 conjunts are in the unsatisfiable core [2019-09-08 13:58:20,896 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 13:58:20,929 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 0 proven. 529 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:58:20,935 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 13:58:20,936 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 27 [2019-09-08 13:58:20,936 INFO L454 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-09-08 13:58:20,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-09-08 13:58:20,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2019-09-08 13:58:20,937 INFO L87 Difference]: Start difference. First operand 5005 states and 6500 transitions. Second operand 27 states. [2019-09-08 13:58:21,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:58:21,135 INFO L93 Difference]: Finished difference Result 9955 states and 12945 transitions. [2019-09-08 13:58:21,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-09-08 13:58:21,136 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 205 [2019-09-08 13:58:21,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:58:21,145 INFO L225 Difference]: With dead ends: 9955 [2019-09-08 13:58:21,146 INFO L226 Difference]: Without dead ends: 5008 [2019-09-08 13:58:21,153 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2019-09-08 13:58:21,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5008 states. [2019-09-08 13:58:21,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5008 to 5007. [2019-09-08 13:58:21,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5007 states. [2019-09-08 13:58:21,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5007 states to 5007 states and 6502 transitions. [2019-09-08 13:58:21,256 INFO L78 Accepts]: Start accepts. Automaton has 5007 states and 6502 transitions. Word has length 205 [2019-09-08 13:58:21,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:58:21,256 INFO L475 AbstractCegarLoop]: Abstraction has 5007 states and 6502 transitions. [2019-09-08 13:58:21,256 INFO L476 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-09-08 13:58:21,256 INFO L276 IsEmpty]: Start isEmpty. Operand 5007 states and 6502 transitions. [2019-09-08 13:58:21,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-09-08 13:58:21,260 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:58:21,260 INFO L399 BasicCegarLoop]: trace histogram [24, 24, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:58:21,261 INFO L418 AbstractCegarLoop]: === Iteration 33 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:58:21,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:58:21,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1337527796, now seen corresponding path program 14 times [2019-09-08 13:58:21,261 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:58:21,261 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:58:21,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:58:21,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 13:58:21,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:58:21,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:58:21,796 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 0 proven. 576 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:58:21,796 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 13:58:21,797 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 13:58:21,818 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 13:58:22,775 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-08 13:58:22,775 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 13:58:22,786 INFO L256 TraceCheckSpWp]: Trace formula consists of 2136 conjuncts, 26 conjunts are in the unsatisfiable core [2019-09-08 13:58:22,789 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 13:58:22,835 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 0 proven. 576 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:58:22,846 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 13:58:22,846 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 28 [2019-09-08 13:58:22,848 INFO L454 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-09-08 13:58:22,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-09-08 13:58:22,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2019-09-08 13:58:22,850 INFO L87 Difference]: Start difference. First operand 5007 states and 6502 transitions. Second operand 28 states. [2019-09-08 13:58:23,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:58:23,078 INFO L93 Difference]: Finished difference Result 9957 states and 12947 transitions. [2019-09-08 13:58:23,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-09-08 13:58:23,078 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 207 [2019-09-08 13:58:23,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:58:23,088 INFO L225 Difference]: With dead ends: 9957 [2019-09-08 13:58:23,088 INFO L226 Difference]: Without dead ends: 5010 [2019-09-08 13:58:23,096 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2019-09-08 13:58:23,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5010 states. [2019-09-08 13:58:23,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5010 to 5009. [2019-09-08 13:58:23,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5009 states. [2019-09-08 13:58:23,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5009 states to 5009 states and 6504 transitions. [2019-09-08 13:58:23,202 INFO L78 Accepts]: Start accepts. Automaton has 5009 states and 6504 transitions. Word has length 207 [2019-09-08 13:58:23,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:58:23,202 INFO L475 AbstractCegarLoop]: Abstraction has 5009 states and 6504 transitions. [2019-09-08 13:58:23,202 INFO L476 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-09-08 13:58:23,202 INFO L276 IsEmpty]: Start isEmpty. Operand 5009 states and 6504 transitions. [2019-09-08 13:58:23,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-09-08 13:58:23,206 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:58:23,207 INFO L399 BasicCegarLoop]: trace histogram [25, 25, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:58:23,207 INFO L418 AbstractCegarLoop]: === Iteration 34 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:58:23,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:58:23,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1471062480, now seen corresponding path program 15 times [2019-09-08 13:58:23,207 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:58:23,207 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:58:23,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:58:23,210 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 13:58:23,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:58:23,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:58:23,803 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 0 proven. 625 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:58:23,803 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 13:58:23,803 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 13:58:23,818 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-08 13:58:52,610 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 26 check-sat command(s) [2019-09-08 13:58:52,610 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 13:58:52,636 INFO L256 TraceCheckSpWp]: Trace formula consists of 2142 conjuncts, 27 conjunts are in the unsatisfiable core [2019-09-08 13:58:52,639 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 13:58:52,669 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 0 proven. 625 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:58:52,685 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 13:58:52,685 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 29 [2019-09-08 13:58:52,686 INFO L454 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-09-08 13:58:52,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-09-08 13:58:52,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2019-09-08 13:58:52,687 INFO L87 Difference]: Start difference. First operand 5009 states and 6504 transitions. Second operand 29 states. [2019-09-08 13:58:53,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:58:53,031 INFO L93 Difference]: Finished difference Result 9959 states and 12949 transitions. [2019-09-08 13:58:53,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-09-08 13:58:53,031 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 209 [2019-09-08 13:58:53,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:58:53,039 INFO L225 Difference]: With dead ends: 9959 [2019-09-08 13:58:53,039 INFO L226 Difference]: Without dead ends: 5012 [2019-09-08 13:58:53,046 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2019-09-08 13:58:53,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5012 states. [2019-09-08 13:58:53,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5012 to 5011. [2019-09-08 13:58:53,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5011 states. [2019-09-08 13:58:53,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5011 states to 5011 states and 6506 transitions. [2019-09-08 13:58:53,139 INFO L78 Accepts]: Start accepts. Automaton has 5011 states and 6506 transitions. Word has length 209 [2019-09-08 13:58:53,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:58:53,139 INFO L475 AbstractCegarLoop]: Abstraction has 5011 states and 6506 transitions. [2019-09-08 13:58:53,139 INFO L476 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-09-08 13:58:53,139 INFO L276 IsEmpty]: Start isEmpty. Operand 5011 states and 6506 transitions. [2019-09-08 13:58:53,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-09-08 13:58:53,143 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:58:53,143 INFO L399 BasicCegarLoop]: trace histogram [26, 26, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:58:53,143 INFO L418 AbstractCegarLoop]: === Iteration 35 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:58:53,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:58:53,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1008111468, now seen corresponding path program 16 times [2019-09-08 13:58:53,144 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:58:53,144 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:58:53,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:58:53,146 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 13:58:53,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:58:53,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:58:53,737 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 0 proven. 676 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:58:53,737 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 13:58:53,738 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 13:58:53,754 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-09-08 13:59:06,208 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-09-08 13:59:06,208 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 13:59:06,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 2148 conjuncts, 28 conjunts are in the unsatisfiable core [2019-09-08 13:59:06,226 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 13:59:06,259 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 0 proven. 676 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:59:06,271 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 13:59:06,272 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 30 [2019-09-08 13:59:06,272 INFO L454 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-09-08 13:59:06,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-09-08 13:59:06,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2019-09-08 13:59:06,274 INFO L87 Difference]: Start difference. First operand 5011 states and 6506 transitions. Second operand 30 states. [2019-09-08 13:59:06,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 13:59:06,509 INFO L93 Difference]: Finished difference Result 9961 states and 12951 transitions. [2019-09-08 13:59:06,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-09-08 13:59:06,509 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 211 [2019-09-08 13:59:06,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 13:59:06,524 INFO L225 Difference]: With dead ends: 9961 [2019-09-08 13:59:06,524 INFO L226 Difference]: Without dead ends: 5014 [2019-09-08 13:59:06,535 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2019-09-08 13:59:06,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5014 states. [2019-09-08 13:59:06,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5014 to 5013. [2019-09-08 13:59:06,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5013 states. [2019-09-08 13:59:06,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5013 states to 5013 states and 6508 transitions. [2019-09-08 13:59:06,658 INFO L78 Accepts]: Start accepts. Automaton has 5013 states and 6508 transitions. Word has length 211 [2019-09-08 13:59:06,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 13:59:06,659 INFO L475 AbstractCegarLoop]: Abstraction has 5013 states and 6508 transitions. [2019-09-08 13:59:06,659 INFO L476 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-09-08 13:59:06,659 INFO L276 IsEmpty]: Start isEmpty. Operand 5013 states and 6508 transitions. [2019-09-08 13:59:06,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-09-08 13:59:06,663 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 13:59:06,663 INFO L399 BasicCegarLoop]: trace histogram [27, 27, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 13:59:06,663 INFO L418 AbstractCegarLoop]: === Iteration 36 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 13:59:06,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 13:59:06,663 INFO L82 PathProgramCache]: Analyzing trace with hash -212573784, now seen corresponding path program 17 times [2019-09-08 13:59:06,663 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 13:59:06,663 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 13:59:06,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:59:06,665 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 13:59:06,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 13:59:06,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 13:59:07,493 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 0 proven. 729 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 13:59:07,494 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 13:59:07,494 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 13:59:07,509 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-09-08 14:01:10,902 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 28 check-sat command(s) [2019-09-08 14:01:10,903 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 14:01:10,947 INFO L256 TraceCheckSpWp]: Trace formula consists of 2154 conjuncts, 29 conjunts are in the unsatisfiable core [2019-09-08 14:01:10,950 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 14:01:11,009 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 0 proven. 729 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 14:01:11,038 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 14:01:11,039 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 31 [2019-09-08 14:01:11,039 INFO L454 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-09-08 14:01:11,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-09-08 14:01:11,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2019-09-08 14:01:11,040 INFO L87 Difference]: Start difference. First operand 5013 states and 6508 transitions. Second operand 31 states. [2019-09-08 14:01:11,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 14:01:11,333 INFO L93 Difference]: Finished difference Result 9963 states and 12953 transitions. [2019-09-08 14:01:11,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-09-08 14:01:11,333 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 213 [2019-09-08 14:01:11,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 14:01:11,344 INFO L225 Difference]: With dead ends: 9963 [2019-09-08 14:01:11,344 INFO L226 Difference]: Without dead ends: 5016 [2019-09-08 14:01:11,352 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2019-09-08 14:01:11,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5016 states. [2019-09-08 14:01:11,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5016 to 5015. [2019-09-08 14:01:11,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5015 states. [2019-09-08 14:01:11,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5015 states to 5015 states and 6510 transitions. [2019-09-08 14:01:11,461 INFO L78 Accepts]: Start accepts. Automaton has 5015 states and 6510 transitions. Word has length 213 [2019-09-08 14:01:11,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 14:01:11,461 INFO L475 AbstractCegarLoop]: Abstraction has 5015 states and 6510 transitions. [2019-09-08 14:01:11,461 INFO L476 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-09-08 14:01:11,461 INFO L276 IsEmpty]: Start isEmpty. Operand 5015 states and 6510 transitions. [2019-09-08 14:01:11,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2019-09-08 14:01:11,466 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 14:01:11,466 INFO L399 BasicCegarLoop]: trace histogram [28, 28, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 14:01:11,466 INFO L418 AbstractCegarLoop]: === Iteration 37 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 14:01:11,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 14:01:11,467 INFO L82 PathProgramCache]: Analyzing trace with hash -765029148, now seen corresponding path program 18 times [2019-09-08 14:01:11,467 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 14:01:11,467 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 14:01:11,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 14:01:11,469 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 14:01:11,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 14:01:11,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 14:01:12,099 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 0 proven. 784 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 14:01:12,100 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 14:01:12,100 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 14:01:12,119 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE