/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-47dffc7-1-144_2a-drivers--net--usb--cdc-phonet.ko-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 13:52:36,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 13:52:36,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 13:52:36,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 13:52:36,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 13:52:36,369 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 13:52:36,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 13:52:36,373 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 13:52:36,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 13:52:36,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 13:52:36,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 13:52:36,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 13:52:36,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 13:52:36,382 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 13:52:36,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 13:52:36,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 13:52:36,387 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 13:52:36,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 13:52:36,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 13:52:36,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 13:52:36,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 13:52:36,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 13:52:36,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 13:52:36,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 13:52:36,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 13:52:36,442 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 13:52:36,447 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 13:52:36,449 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 13:52:36,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 13:52:36,453 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 13:52:36,454 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 13:52:36,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 13:52:36,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 13:52:36,459 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 13:52:36,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 13:52:36,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 13:52:36,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 13:52:36,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 13:52:36,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 13:52:36,465 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 13:52:36,466 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 13:52:36,468 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-27 13:52:36,537 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 13:52:36,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 13:52:36,542 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 13:52:36,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 13:52:36,542 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 13:52:36,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 13:52:36,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 13:52:36,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 13:52:36,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 13:52:36,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 13:52:36,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 13:52:36,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 13:52:36,546 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 13:52:36,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 13:52:36,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 13:52:36,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 13:52:36,547 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 13:52:36,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 13:52:36,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 13:52:36,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 13:52:36,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 13:52:36,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 13:52:36,549 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 13:52:36,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 13:52:36,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 13:52:36,550 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 13:52:36,550 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-27 13:52:36,550 INFO L138 SettingsManager]: * To the following directory=dump/ WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 13:52:37,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 13:52:37,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 13:52:37,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 13:52:37,034 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 13:52:37,035 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 13:52:37,036 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-47dffc7-1-144_2a-drivers--net--usb--cdc-phonet.ko-entry_point_ldv-val-v0.8.cil.out.i [2020-10-27 13:52:37,136 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d5dd9235b/7e18a1ed54424d848519d9549ad8983f/FLAG7abf65b55 [2020-10-27 13:52:38,152 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 13:52:38,153 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-47dffc7-1-144_2a-drivers--net--usb--cdc-phonet.ko-entry_point_ldv-val-v0.8.cil.out.i [2020-10-27 13:52:38,199 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d5dd9235b/7e18a1ed54424d848519d9549ad8983f/FLAG7abf65b55 [2020-10-27 13:52:38,592 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d5dd9235b/7e18a1ed54424d848519d9549ad8983f [2020-10-27 13:52:38,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 13:52:38,602 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 13:52:38,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 13:52:38,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 13:52:38,609 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 13:52:38,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:52:38" (1/1) ... [2020-10-27 13:52:38,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@137a812d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:52:38, skipping insertion in model container [2020-10-27 13:52:38,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:52:38" (1/1) ... [2020-10-27 13:52:38,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 13:52:38,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 13:52:40,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 13:52:40,128 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 13:52:40,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 13:52:40,812 INFO L208 MainTranslator]: Completed translation [2020-10-27 13:52:40,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:52:40 WrapperNode [2020-10-27 13:52:40,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 13:52:40,814 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 13:52:40,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 13:52:40,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 13:52:40,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:52:40" (1/1) ... [2020-10-27 13:52:40,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:52:40" (1/1) ... [2020-10-27 13:52:40,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:52:40" (1/1) ... [2020-10-27 13:52:40,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:52:40" (1/1) ... [2020-10-27 13:52:41,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:52:40" (1/1) ... [2020-10-27 13:52:41,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:52:40" (1/1) ... [2020-10-27 13:52:41,056 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:52:40" (1/1) ... [2020-10-27 13:52:41,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 13:52:41,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 13:52:41,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 13:52:41,109 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 13:52:41,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:52:40" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-27 13:52:41,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 13:52:41,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 13:52:41,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-27 13:52:41,209 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 13:52:41,209 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-10-27 13:52:41,210 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2020-10-27 13:52:41,210 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-10-27 13:52:41,211 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-27 13:52:41,211 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2020-10-27 13:52:41,211 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2020-10-27 13:52:41,211 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-27 13:52:41,212 INFO L138 BoogieDeclarations]: Found implementation of procedure numa_node_id [2020-10-27 13:52:41,213 INFO L138 BoogieDeclarations]: Found implementation of procedure gfp_zonelist [2020-10-27 13:52:41,213 INFO L138 BoogieDeclarations]: Found implementation of procedure node_zonelist [2020-10-27 13:52:41,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_pages [2020-10-27 13:52:41,213 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages_node [2020-10-27 13:52:41,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-27 13:52:41,216 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 13:52:41,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-27 13:52:41,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-27 13:52:41,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2020-10-27 13:52:41,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2020-10-27 13:52:41,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-27 13:52:41,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-27 13:52:41,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-27 13:52:41,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-27 13:52:41,217 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2020-10-27 13:52:41,218 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2020-10-27 13:52:41,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_pull [2020-10-27 13:52:41,218 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2020-10-27 13:52:41,218 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2020-10-27 13:52:41,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_alloc_pages [2020-10-27 13:52:41,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_alloc_page [2020-10-27 13:52:41,219 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2020-10-27 13:52:41,219 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-10-27 13:52:41,219 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2020-10-27 13:52:41,219 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2020-10-27 13:52:41,219 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2020-10-27 13:52:41,219 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2020-10-27 13:52:41,219 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2020-10-27 13:52:41,220 INFO L138 BoogieDeclarations]: Found implementation of procedure usbpn_xmit [2020-10-27 13:52:41,220 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_complete [2020-10-27 13:52:41,220 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_submit [2020-10-27 13:52:41,221 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_complete [2020-10-27 13:52:41,221 INFO L138 BoogieDeclarations]: Found implementation of procedure usbpn_open [2020-10-27 13:52:41,221 INFO L138 BoogieDeclarations]: Found implementation of procedure usbpn_close [2020-10-27 13:52:41,221 INFO L138 BoogieDeclarations]: Found implementation of procedure usbpn_ioctl [2020-10-27 13:52:41,221 INFO L138 BoogieDeclarations]: Found implementation of procedure usbpn_set_mtu [2020-10-27 13:52:41,221 INFO L138 BoogieDeclarations]: Found implementation of procedure usbpn_setup [2020-10-27 13:52:41,221 INFO L138 BoogieDeclarations]: Found implementation of procedure usbpn_probe [2020-10-27 13:52:41,222 INFO L138 BoogieDeclarations]: Found implementation of procedure usbpn_disconnect [2020-10-27 13:52:41,222 INFO L138 BoogieDeclarations]: Found implementation of procedure usbpn_driver_init [2020-10-27 13:52:41,222 INFO L138 BoogieDeclarations]: Found implementation of procedure usbpn_driver_exit [2020-10-27 13:52:41,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-10-27 13:52:41,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_2 [2020-10-27 13:52:41,222 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 13:52:41,223 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-27 13:52:41,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_2 [2020-10-27 13:52:41,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_3 [2020-10-27 13:52:41,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2020-10-27 13:52:41,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_5 [2020-10-27 13:52:41,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_6 [2020-10-27 13:52:41,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_8 [2020-10-27 13:52:41,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_9 [2020-10-27 13:52:41,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_10 [2020-10-27 13:52:41,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_11 [2020-10-27 13:52:41,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_12 [2020-10-27 13:52:41,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_14 [2020-10-27 13:52:41,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_15 [2020-10-27 13:52:41,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_16 [2020-10-27 13:52:41,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_17 [2020-10-27 13:52:41,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_18 [2020-10-27 13:52:41,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-27 13:52:41,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-10-27 13:52:41,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-10-27 13:52:41,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-10-27 13:52:41,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2020-10-27 13:52:41,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-10-27 13:52:41,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-10-27 13:52:41,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-10-27 13:52:41,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-10-27 13:52:41,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2020-10-27 13:52:41,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-10-27 13:52:41,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-10-27 13:52:41,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-10-27 13:52:41,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-10-27 13:52:41,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-10-27 13:52:41,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-10-27 13:52:41,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-27 13:52:41,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_pages_nodemask [2020-10-27 13:52:41,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2020-10-27 13:52:41,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2020-10-27 13:52:41,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2020-10-27 13:52:41,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2020-10-27 13:52:41,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-27 13:52:41,232 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2020-10-27 13:52:41,232 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2020-10-27 13:52:41,233 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2020-10-27 13:52:41,233 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-27 13:52:41,233 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2020-10-27 13:52:41,233 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2020-10-27 13:52:41,233 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-10-27 13:52:41,233 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-10-27 13:52:41,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-27 13:52:41,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_2 [2020-10-27 13:52:41,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_2 [2020-10-27 13:52:41,234 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2020-10-27 13:52:41,235 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2020-10-27 13:52:41,235 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-27 13:52:41,235 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2020-10-27 13:52:41,235 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2020-10-27 13:52:41,236 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_add_rx_frag [2020-10-27 13:52:41,236 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-10-27 13:52:41,237 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-10-27 13:52:41,237 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-27 13:52:41,237 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_claim_interface [2020-10-27 13:52:41,238 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2020-10-27 13:52:41,238 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2020-10-27 13:52:41,238 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2020-10-27 13:52:41,238 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-27 13:52:41,239 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2020-10-27 13:52:41,239 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-27 13:52:41,239 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-27 13:52:41,240 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-27 13:52:41,240 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-27 13:52:41,240 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-27 13:52:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 13:52:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 13:52:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 13:52:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 13:52:41,241 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 13:52:41,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 13:52:41,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-27 13:52:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-10-27 13:52:41,246 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2020-10-27 13:52:41,247 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-10-27 13:52:41,247 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-27 13:52:41,247 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2020-10-27 13:52:41,247 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-27 13:52:41,248 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2020-10-27 13:52:41,248 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-10-27 13:52:41,249 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-27 13:52:41,250 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-27 13:52:41,251 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-27 13:52:41,252 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2020-10-27 13:52:41,257 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2020-10-27 13:52:41,257 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2020-10-27 13:52:41,258 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-27 13:52:41,258 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-27 13:52:41,260 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2020-10-27 13:52:41,260 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2020-10-27 13:52:41,260 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-27 13:52:41,261 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2020-10-27 13:52:41,261 INFO L130 BoogieDeclarations]: Found specification of procedure numa_node_id [2020-10-27 13:52:41,261 INFO L130 BoogieDeclarations]: Found specification of procedure gfp_zonelist [2020-10-27 13:52:41,261 INFO L130 BoogieDeclarations]: Found specification of procedure node_zonelist [2020-10-27 13:52:41,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 13:52:41,261 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_pages_nodemask [2020-10-27 13:52:41,262 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_pages [2020-10-27 13:52:41,262 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages_node [2020-10-27 13:52:41,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_15 [2020-10-27 13:52:41,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_11 [2020-10-27 13:52:41,262 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-27 13:52:41,262 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_claim_interface [2020-10-27 13:52:41,263 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2020-10-27 13:52:41,263 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2020-10-27 13:52:41,263 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-27 13:52:41,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_17 [2020-10-27 13:52:41,263 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-27 13:52:41,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_18 [2020-10-27 13:52:41,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_3 [2020-10-27 13:52:41,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_2 [2020-10-27 13:52:41,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_9 [2020-10-27 13:52:41,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_5 [2020-10-27 13:52:41,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_6 [2020-10-27 13:52:41,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_10 [2020-10-27 13:52:41,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2020-10-27 13:52:41,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_8 [2020-10-27 13:52:41,265 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2020-10-27 13:52:41,265 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2020-10-27 13:52:41,265 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-27 13:52:41,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 13:52:41,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2020-10-27 13:52:41,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-10-27 13:52:41,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-10-27 13:52:41,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-10-27 13:52:41,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2020-10-27 13:52:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-10-27 13:52:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-10-27 13:52:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 13:52:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-27 13:52:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 13:52:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-27 13:52:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 13:52:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-27 13:52:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 13:52:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-27 13:52:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-27 13:52:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2020-10-27 13:52:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2020-10-27 13:52:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-27 13:52:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-27 13:52:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-27 13:52:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-27 13:52:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-10-27 13:52:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_2 [2020-10-27 13:52:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2020-10-27 13:52:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2020-10-27 13:52:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2020-10-27 13:52:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2020-10-27 13:52:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure skb_add_rx_frag [2020-10-27 13:52:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-10-27 13:52:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_pull [2020-10-27 13:52:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 13:52:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 13:52:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2020-10-27 13:52:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2020-10-27 13:52:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2020-10-27 13:52:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_alloc_pages [2020-10-27 13:52:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_alloc_page [2020-10-27 13:52:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2020-10-27 13:52:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-10-27 13:52:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-10-27 13:52:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_14 [2020-10-27 13:52:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2020-10-27 13:52:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2020-10-27 13:52:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2020-10-27 13:52:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2020-10-27 13:52:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2020-10-27 13:52:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2020-10-27 13:52:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2020-10-27 13:52:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-10-27 13:52:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2020-10-27 13:52:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2020-10-27 13:52:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2020-10-27 13:52:41,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_12 [2020-10-27 13:52:41,274 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-10-27 13:52:41,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_16 [2020-10-27 13:52:41,274 INFO L130 BoogieDeclarations]: Found specification of procedure tx_complete [2020-10-27 13:52:41,274 INFO L130 BoogieDeclarations]: Found specification of procedure rx_complete [2020-10-27 13:52:41,274 INFO L130 BoogieDeclarations]: Found specification of procedure usbpn_xmit [2020-10-27 13:52:41,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 13:52:41,274 INFO L130 BoogieDeclarations]: Found specification of procedure rx_submit [2020-10-27 13:52:41,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-27 13:52:41,275 INFO L130 BoogieDeclarations]: Found specification of procedure usbpn_close [2020-10-27 13:52:41,275 INFO L130 BoogieDeclarations]: Found specification of procedure usbpn_open [2020-10-27 13:52:41,275 INFO L130 BoogieDeclarations]: Found specification of procedure usbpn_ioctl [2020-10-27 13:52:41,275 INFO L130 BoogieDeclarations]: Found specification of procedure usbpn_set_mtu [2020-10-27 13:52:41,275 INFO L130 BoogieDeclarations]: Found specification of procedure usbpn_setup [2020-10-27 13:52:41,275 INFO L130 BoogieDeclarations]: Found specification of procedure usbpn_probe [2020-10-27 13:52:41,275 INFO L130 BoogieDeclarations]: Found specification of procedure usbpn_disconnect [2020-10-27 13:52:41,276 INFO L130 BoogieDeclarations]: Found specification of procedure usbpn_driver_init [2020-10-27 13:52:41,276 INFO L130 BoogieDeclarations]: Found specification of procedure usbpn_driver_exit [2020-10-27 13:52:41,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_2 [2020-10-27 13:52:41,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_2 [2020-10-27 13:52:41,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-27 13:52:41,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-27 13:52:41,276 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 13:52:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-27 13:52:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-10-27 13:52:41,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-10-27 13:52:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-27 13:52:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-10-27 13:52:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-10-27 13:52:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-10-27 13:52:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-10-27 13:52:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-10-27 13:52:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-10-27 13:52:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 13:52:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-27 13:52:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 13:52:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 13:52:41,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-27 13:52:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-27 13:52:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 13:52:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-27 13:52:41,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-27 13:52:41,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-27 13:52:42,949 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-27 13:52:47,105 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 13:52:47,106 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-27 13:52:47,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:52:47 BoogieIcfgContainer [2020-10-27 13:52:47,111 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 13:52:47,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 13:52:47,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 13:52:47,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 13:52:47,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:52:38" (1/3) ... [2020-10-27 13:52:47,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a1b4780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:52:47, skipping insertion in model container [2020-10-27 13:52:47,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:52:40" (2/3) ... [2020-10-27 13:52:47,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a1b4780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:52:47, skipping insertion in model container [2020-10-27 13:52:47,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:52:47" (3/3) ... [2020-10-27 13:52:47,121 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-47dffc7-1-144_2a-drivers--net--usb--cdc-phonet.ko-entry_point_ldv-val-v0.8.cil.out.i [2020-10-27 13:52:47,134 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 13:52:47,140 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 13:52:47,154 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 13:52:47,190 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 13:52:47,190 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 13:52:47,190 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 13:52:47,190 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 13:52:47,190 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 13:52:47,190 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 13:52:47,190 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 13:52:47,190 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 13:52:47,238 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states. [2020-10-27 13:52:47,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-27 13:52:47,267 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 13:52:47,270 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-27 13:52:47,271 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 13:52:47,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 13:52:47,283 INFO L82 PathProgramCache]: Analyzing trace with hash -70509021, now seen corresponding path program 1 times [2020-10-27 13:52:47,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 13:52:47,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1804541395] [2020-10-27 13:52:47,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 13:52:47,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:52:47,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:52:48,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:52:48,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:52:48,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:52:49,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:52:52,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:52:52,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-27 13:52:52,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 13:52:52,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5168 [2020-10-27 13:52:52,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:52:52,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:52:52,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-27 13:52:52,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:52:52,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 13:52:54,192 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 337 [2020-10-27 13:52:54,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:52:54,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:52:54,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:52:54,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:52:54,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:52:54,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:52:54,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-27 13:52:54,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:52:54,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:52:54,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:52:54,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:52:54,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:52:54,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 13:52:54,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:52:54,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:52:54,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:52:54,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 13:52:54,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:52:54,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-27 13:52:54,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:52:54,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:52:54,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 13:52:54,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:52:54,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:52:54,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:52:54,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:52:54,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:52:54,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:52:54,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:52:54,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:52:54,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 13:52:54,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:52:54,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:52:54,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:52:54,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:52:54,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 13:52:54,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 13:52:54,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:52:54,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:52:54,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:52:54,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:52:54,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:52:54,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 13:52:54,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:52:54,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:52:54,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 13:52:54,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:52:54,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-27 13:52:54,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 13:52:54,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:52:54,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:52:54,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:52:54,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:52:54,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 13:52:54,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 13:52:54,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-27 13:52:54,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:52:54,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:52:54,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 13:52:54,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:52:54,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:52:54,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:52:54,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:52:54,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:52:54,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:52:54,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:52:54,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:52:54,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 13:52:54,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:52:54,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:52:54,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:52:54,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:52:54,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:52:54,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 13:52:54,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:52:54,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:52:54,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:52:54,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:52:54,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:52:54,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 13:52:54,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:52:54,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:52:54,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 13:52:54,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:52:54,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:52:54,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 13:52:54,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:52:54,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:52:54,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:52:54,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:52:54,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 13:52:54,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 13:52:54,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-27 13:52:54,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:52:54,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:52:54,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 13:52:54,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:52:54,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:52:54,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:52:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:52:54,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:52:54,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:52:54,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:52:54,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:52:54,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 13:52:54,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:52:54,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:52:54,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:52:54,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:52:54,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:52:54,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 13:52:54,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:52:54,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:52:54,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:52:54,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:52:54,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:52:54,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 13:52:54,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:52:54,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:52:54,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 13:52:54,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:52:54,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:52:54,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 13:52:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:52:54,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:52:54,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:52:54,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 13:52:54,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:52:54,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 13:52:54,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:52:54,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:52:54,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 13:52:54,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:52:54,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:52:54,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 13:52:54,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:52:54,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:52:54,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:52:55,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:52:55,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 13:52:55,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 13:52:55,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-27 13:52:55,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:52:55,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 13:52:55,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 13:52:55,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 13:52:55,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:52:55,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:52:55,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:52:55,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:52:55,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:52:55,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:52:55,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:52:55,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-27 13:52:55,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:52:55,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 13:52:55,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:52:55,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 13:52:55,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 13:52:55,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 13:52:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:52:55,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:52:55,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:52:55,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:52:55,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 13:52:55,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 13:52:55,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-27 13:52:55,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:52:55,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 13:52:55,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 13:52:55,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 13:52:55,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:52:55,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:52:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:52:55,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:52:55,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:52:55,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:52:55,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:52:55,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-27 13:52:55,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:52:55,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 13:52:55,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:52:55,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 13:52:55,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:52:55,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-27 13:52:55,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:52:55,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:52:55,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:52:55,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 13:52:55,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:52:55,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 13:52:55,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:52:55,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:52:55,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 13:52:55,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:52:55,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:52:55,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:52:55,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:52:55,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:52:55,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:52:55,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 13:52:55,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:52:55,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 13:52:55,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:52:55,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:52:55,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:52:55,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:52:55,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:52:55,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:52:55,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:52:55,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:52:55,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:52:55,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:52:55,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:52:55,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 13:52:55,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:52:55,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:52:55,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:52:55,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:52:55,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:52:55,701 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2020-10-27 13:52:55,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1804541395] [2020-10-27 13:52:55,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 13:52:55,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 13:52:55,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556636016] [2020-10-27 13:52:55,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 13:52:55,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 13:52:55,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 13:52:55,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-27 13:52:55,731 INFO L87 Difference]: Start difference. First operand 881 states. Second operand 11 states. [2020-10-27 13:53:07,695 WARN L193 SmtUtils]: Spent 999.00 ms on a formula simplification that was a NOOP. DAG size: 353 [2020-10-27 13:53:08,629 WARN L193 SmtUtils]: Spent 889.00 ms on a formula simplification that was a NOOP. DAG size: 340 [2020-10-27 13:53:09,575 WARN L193 SmtUtils]: Spent 890.00 ms on a formula simplification that was a NOOP. DAG size: 342 [2020-10-27 13:53:10,605 WARN L193 SmtUtils]: Spent 942.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2020-10-27 13:53:35,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 13:53:35,434 INFO L93 Difference]: Finished difference Result 1920 states and 2520 transitions. [2020-10-27 13:53:35,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 13:53:35,437 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 104 [2020-10-27 13:53:35,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 13:53:35,465 INFO L225 Difference]: With dead ends: 1920 [2020-10-27 13:53:35,466 INFO L226 Difference]: Without dead ends: 1055 [2020-10-27 13:53:35,482 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-10-27 13:53:35,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2020-10-27 13:53:35,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 833. [2020-10-27 13:53:35,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 833 states. [2020-10-27 13:53:35,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1042 transitions. [2020-10-27 13:53:35,889 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1042 transitions. Word has length 104 [2020-10-27 13:53:35,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 13:53:35,889 INFO L481 AbstractCegarLoop]: Abstraction has 833 states and 1042 transitions. [2020-10-27 13:53:35,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 13:53:35,890 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1042 transitions. [2020-10-27 13:53:35,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-27 13:53:35,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 13:53:35,896 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-27 13:53:35,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 13:53:35,897 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 13:53:35,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 13:53:35,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1361025483, now seen corresponding path program 1 times [2020-10-27 13:53:35,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 13:53:35,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [79501199] [2020-10-27 13:53:35,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 13:53:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:53:36,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:53:36,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:53:36,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:53:36,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:53:41,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:53:41,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-27 13:53:41,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 13:53:41,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5074 [2020-10-27 13:53:41,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:53:41,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 13:53:41,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 13:53:41,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-27 13:53:41,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:53:42,033 WARN L193 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 337 [2020-10-27 13:53:42,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:53:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:53:42,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:53:42,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:53:42,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:53:42,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:53:42,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-27 13:53:42,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:53:42,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 13:53:42,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:53:42,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 13:53:42,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:53:42,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 13:53:42,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:53:42,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:53:42,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:53:42,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 13:53:42,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:53:42,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-27 13:53:42,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:53:42,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 13:53:42,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:53:42,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 13:53:42,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:53:42,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:53:42,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:53:42,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:53:42,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:53:42,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:53:42,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:53:42,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 13:53:42,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:53:42,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:53:42,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:53:42,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:53:42,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:53:42,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 13:53:42,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:53:42,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:53:42,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:53:42,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:53:42,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:53:42,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 13:53:42,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:53:42,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:53:42,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:53:42,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:53:42,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:53:42,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 13:53:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:53:42,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:53:42,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:53:42,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 13:53:42,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:53:42,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-27 13:53:42,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:53:42,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 13:53:42,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:53:42,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 13:53:42,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:53:42,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:53:42,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:53:42,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:53:42,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:53:42,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:53:42,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:53:42,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 13:53:42,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:53:42,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:53:42,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:53:42,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:53:42,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:53:42,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 13:53:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:53:42,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:53:42,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:53:42,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:53:42,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:53:42,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 13:53:42,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:53:42,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:53:42,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:53:42,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:53:42,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:53:42,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 13:53:42,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:53:42,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:53:42,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:53:42,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 13:53:42,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:53:42,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 13:53:42,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:53:42,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 13:53:42,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:53:42,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 13:53:42,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:53:42,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:53:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:53:42,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:53:42,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:53:42,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:53:42,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:53:42,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 13:53:42,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:53:42,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:53:42,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:53:42,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:53:42,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:53:42,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 13:53:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:53:42,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:53:42,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:53:42,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:53:42,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:53:42,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 13:53:42,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:53:42,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:53:42,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:53:42,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:53:42,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:53:42,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 13:53:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:53:42,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:53:42,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:53:42,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 13:53:42,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:53:42,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 13:53:42,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:53:42,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 13:53:42,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:53:42,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 13:53:42,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:53:42,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 13:53:42,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:53:42,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:53:42,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:53:42,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:53:42,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 13:53:42,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 13:53:42,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-27 13:53:42,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:53:42,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 13:53:42,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:53:42,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 13:53:42,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:53:42,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:53:42,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:53:42,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:53:42,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:53:42,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 13:53:42,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:53:42,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 13:53:42,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:53:42,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:53:42,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:53:42,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:53:42,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:53:42,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-27 13:53:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:53:42,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:53:42,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:53:43,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:53:43,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 13:53:43,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 13:53:43,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-27 13:53:43,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:53:43,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 13:53:43,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:53:43,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 13:53:43,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:53:43,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:53:43,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:53:43,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:53:43,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:53:43,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 13:53:43,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:53:43,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 13:53:43,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:53:43,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:53:43,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:53:43,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:53:43,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:53:43,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 13:53:43,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:53:43,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:53:43,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:53:43,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 13:53:43,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:53:43,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 13:53:43,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:53:43,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 13:53:43,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:53:43,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 13:53:43,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:53:43,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:53:43,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:53:43,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:53:43,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:53:43,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 13:53:43,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:53:43,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 13:53:43,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:53:43,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:53:43,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:53:43,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:53:43,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:53:43,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:53:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:53:43,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:53:43,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:53:43,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:53:43,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:53:43,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 13:53:43,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:53:43,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:53:43,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:53:43,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:53:43,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:53:43,217 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-10-27 13:53:43,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [79501199] [2020-10-27 13:53:43,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 13:53:43,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 13:53:43,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206721677] [2020-10-27 13:53:43,220 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 13:53:43,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 13:53:43,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 13:53:43,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-27 13:53:43,221 INFO L87 Difference]: Start difference. First operand 833 states and 1042 transitions. Second operand 8 states. [2020-10-27 13:53:49,584 WARN L193 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 340 [2020-10-27 13:54:26,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 13:54:26,467 INFO L93 Difference]: Finished difference Result 2854 states and 3743 transitions. [2020-10-27 13:54:26,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 13:54:26,468 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 106 [2020-10-27 13:54:26,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 13:54:26,493 INFO L225 Difference]: With dead ends: 2854 [2020-10-27 13:54:26,493 INFO L226 Difference]: Without dead ends: 2050 [2020-10-27 13:54:26,499 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2020-10-27 13:54:26,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states. [2020-10-27 13:54:26,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 1728. [2020-10-27 13:54:26,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1728 states. [2020-10-27 13:54:26,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1728 states to 1728 states and 2216 transitions. [2020-10-27 13:54:27,000 INFO L78 Accepts]: Start accepts. Automaton has 1728 states and 2216 transitions. Word has length 106 [2020-10-27 13:54:27,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 13:54:27,001 INFO L481 AbstractCegarLoop]: Abstraction has 1728 states and 2216 transitions. [2020-10-27 13:54:27,002 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 13:54:27,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1728 states and 2216 transitions. [2020-10-27 13:54:27,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-27 13:54:27,006 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 13:54:27,006 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-27 13:54:27,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 13:54:27,006 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 13:54:27,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 13:54:27,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1136156638, now seen corresponding path program 1 times [2020-10-27 13:54:27,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 13:54:27,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [974762778] [2020-10-27 13:54:27,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 13:54:27,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:54:27,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:54:27,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:54:27,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:54:32,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:54:32,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 13:54:32,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 13:54:32,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 13:54:32,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:54:32,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 13:54:32,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-27 13:54:32,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 13:54:32,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:54:33,033 WARN L193 SmtUtils]: Spent 863.00 ms on a formula simplification that was a NOOP. DAG size: 337 [2020-10-27 13:54:33,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:54:33,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:54:33,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:54:33,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:54:33,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:54:33,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:54:33,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-27 13:54:33,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:54:33,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:54:33,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:54:33,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:54:33,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:54:33,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 13:54:33,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:54:33,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:54:33,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:54:33,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 13:54:33,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:54:33,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 13:54:33,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:54:33,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:54:33,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:54:33,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:54:33,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:54:33,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:54:33,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:54:33,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:54:33,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:54:33,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:54:33,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:54:33,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 13:54:33,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:54:33,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:54:33,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:54:33,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:54:33,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:54:33,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 13:54:33,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:54:33,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:54:33,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:54:33,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:54:33,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:54:33,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 13:54:33,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:54:33,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:54:33,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:54:33,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:54:33,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:54:33,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 13:54:33,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:54:33,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:54:33,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:54:33,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 13:54:33,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:54:33,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 13:54:33,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:54:33,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:54:33,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:54:33,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:54:33,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:54:33,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:54:33,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:54:33,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:54:33,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:54:33,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:54:33,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:54:33,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 13:54:33,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:54:33,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:54:33,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:54:33,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:54:33,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:54:33,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 13:54:33,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:54:33,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:54:33,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:54:33,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:54:33,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:54:33,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 13:54:33,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:54:33,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:54:33,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:54:33,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:54:33,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:54:33,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 13:54:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:54:33,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:54:33,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:54:33,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 13:54:33,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:54:33,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 13:54:33,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:54:33,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:54:33,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:54:33,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:54:33,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:54:33,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:54:33,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:54:33,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:54:33,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:54:33,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:54:33,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:54:33,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 13:54:33,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:54:33,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:54:33,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:54:33,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:54:33,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:54:33,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 13:54:33,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:54:33,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:54:33,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:54:33,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:54:33,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:54:33,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 13:54:33,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:54:33,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:54:33,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:54:33,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:54:33,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:54:33,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 13:54:33,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:54:33,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:54:33,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:54:33,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 13:54:33,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:54:33,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 13:54:33,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:54:33,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:54:33,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:54:33,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:54:33,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:54:33,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 13:54:33,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:54:33,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:54:33,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:54:33,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 13:54:33,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:54:33,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-27 13:54:33,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:54:33,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 13:54:33,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 13:54:33,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 13:54:33,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:54:33,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:54:33,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:54:33,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:54:33,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:54:33,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 13:54:33,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:54:33,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-27 13:54:33,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:54:33,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 13:54:33,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:54:33,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 13:54:33,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:54:33,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-27 13:54:33,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:54:33,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:54:33,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:54:33,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:54:33,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 13:54:33,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 13:54:33,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-27 13:54:33,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:54:33,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 13:54:33,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 13:54:33,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 13:54:33,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 13:54:33,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:54:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:54:33,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:54:34,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:54:34,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 13:54:34,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:54:34,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-27 13:54:34,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:54:34,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 13:54:34,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:54:34,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 13:54:34,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:54:34,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 13:54:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:54:34,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:54:34,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:54:34,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 13:54:34,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:54:34,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 13:54:34,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:54:34,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:54:34,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 13:54:34,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:54:34,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:54:34,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:54:34,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:54:34,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:54:34,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:54:34,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 13:54:34,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:54:34,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 13:54:34,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:54:34,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:54:34,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:54:34,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:54:34,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:54:34,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:54:34,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:54:34,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:54:34,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:54:34,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:54:34,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:54:34,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 13:54:34,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:54:34,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:54:34,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:54:34,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:54:34,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:54:34,251 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2020-10-27 13:54:34,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [974762778] [2020-10-27 13:54:34,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 13:54:34,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 13:54:34,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998033243] [2020-10-27 13:54:34,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 13:54:34,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 13:54:34,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 13:54:34,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-10-27 13:54:34,257 INFO L87 Difference]: Start difference. First operand 1728 states and 2216 transitions. Second operand 13 states. [2020-10-27 13:54:47,139 WARN L193 SmtUtils]: Spent 936.00 ms on a formula simplification that was a NOOP. DAG size: 348 [2020-10-27 13:54:48,109 WARN L193 SmtUtils]: Spent 899.00 ms on a formula simplification that was a NOOP. DAG size: 341 [2020-10-27 13:55:15,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 13:55:15,452 INFO L93 Difference]: Finished difference Result 3756 states and 4867 transitions. [2020-10-27 13:55:15,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 13:55:15,454 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 107 [2020-10-27 13:55:15,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 13:55:15,468 INFO L225 Difference]: With dead ends: 3756 [2020-10-27 13:55:15,469 INFO L226 Difference]: Without dead ends: 2039 [2020-10-27 13:55:15,476 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2020-10-27 13:55:15,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2039 states. [2020-10-27 13:55:15,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2039 to 1729. [2020-10-27 13:55:15,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1729 states. [2020-10-27 13:55:15,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1729 states to 1729 states and 2217 transitions. [2020-10-27 13:55:15,864 INFO L78 Accepts]: Start accepts. Automaton has 1729 states and 2217 transitions. Word has length 107 [2020-10-27 13:55:15,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 13:55:15,864 INFO L481 AbstractCegarLoop]: Abstraction has 1729 states and 2217 transitions. [2020-10-27 13:55:15,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 13:55:15,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1729 states and 2217 transitions. [2020-10-27 13:55:15,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-27 13:55:15,867 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 13:55:15,867 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-27 13:55:15,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 13:55:15,868 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 13:55:15,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 13:55:15,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1613007548, now seen corresponding path program 2 times [2020-10-27 13:55:15,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 13:55:15,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [210658785] [2020-10-27 13:55:15,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 13:55:15,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:55:15,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:55:16,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:55:16,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:55:21,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:55:21,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-27 13:55:21,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 13:55:21,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5172 [2020-10-27 13:55:21,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:55:21,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 13:55:21,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-27 13:55:21,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 13:55:21,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:55:22,274 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 337 [2020-10-27 13:55:22,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:55:22,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:55:22,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:55:22,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:55:22,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:55:22,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:55:22,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-27 13:55:22,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:55:22,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:55:22,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:55:22,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:55:22,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:55:22,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 13:55:22,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:55:22,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:55:22,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:55:22,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 13:55:22,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:55:22,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 13:55:22,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:55:22,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:55:22,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:55:22,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:55:22,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:55:22,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:55:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:55:22,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:55:22,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:55:22,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:55:22,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:55:22,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 13:55:22,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:55:22,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:55:22,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:55:22,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:55:22,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:55:22,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 13:55:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:55:22,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:55:22,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:55:22,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:55:22,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:55:22,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 13:55:22,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:55:22,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:55:22,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:55:22,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:55:22,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:55:22,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 13:55:22,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:55:22,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:55:22,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:55:22,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 13:55:22,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:55:22,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 13:55:22,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:55:22,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:55:22,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:55:22,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:55:22,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 13:55:22,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:55:22,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:55:22,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:55:22,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:55:22,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:55:22,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:55:22,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 13:55:22,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:55:22,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:55:22,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:55:22,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:55:22,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:55:22,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 13:55:22,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:55:22,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:55:22,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:55:22,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:55:22,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:55:22,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 13:55:22,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:55:22,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:55:22,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:55:22,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:55:22,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:55:22,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 13:55:22,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:55:22,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:55:22,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:55:22,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 13:55:22,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:55:22,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 13:55:22,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:55:22,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:55:22,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:55:22,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:55:22,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:55:22,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:55:22,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:55:22,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:55:22,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:55:22,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:55:22,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:55:22,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 13:55:22,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:55:22,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:55:22,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:55:22,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:55:22,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:55:22,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 13:55:22,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:55:22,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:55:22,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:55:22,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:55:22,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:55:22,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 13:55:22,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:55:22,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:55:22,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:55:22,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:55:22,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:55:22,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 13:55:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:55:22,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:55:22,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:55:22,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 13:55:22,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:55:22,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 13:55:22,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:55:22,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:55:22,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:55:22,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:55:22,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:55:22,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 13:55:22,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:55:22,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:55:22,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:55:22,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 13:55:22,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:55:22,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-27 13:55:22,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:55:22,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 13:55:22,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 13:55:22,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 13:55:22,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:55:22,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:55:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:55:22,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:55:22,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:55:22,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 13:55:22,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:55:22,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-27 13:55:22,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:55:22,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 13:55:22,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:55:22,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 13:55:22,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:55:23,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 13:55:23,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:55:23,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:55:23,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:55:23,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:55:23,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 13:55:23,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 13:55:23,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-27 13:55:23,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:55:23,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 13:55:23,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 13:55:23,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 13:55:23,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:55:23,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:55:23,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:55:23,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:55:23,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:55:23,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 13:55:23,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:55:23,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-27 13:55:23,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:55:23,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 13:55:23,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:55:23,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 13:55:23,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:55:23,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-27 13:55:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:55:23,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:55:23,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:55:23,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 13:55:23,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:55:23,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 13:55:23,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:55:23,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:55:23,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 13:55:23,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:55:23,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:55:23,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:55:23,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:55:23,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:55:23,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:55:23,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 13:55:23,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:55:23,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 13:55:23,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:55:23,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:55:23,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:55:23,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:55:23,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:55:23,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:55:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:55:23,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:55:23,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:55:23,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:55:23,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:55:23,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 13:55:23,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:55:23,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:55:23,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:55:23,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:55:23,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:55:23,475 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-10-27 13:55:23,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [210658785] [2020-10-27 13:55:23,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 13:55:23,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-27 13:55:23,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612204598] [2020-10-27 13:55:23,482 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 13:55:23,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 13:55:23,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 13:55:23,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-27 13:55:23,485 INFO L87 Difference]: Start difference. First operand 1729 states and 2217 transitions. Second operand 14 states. [2020-10-27 13:55:35,173 WARN L193 SmtUtils]: Spent 966.00 ms on a formula simplification that was a NOOP. DAG size: 348 [2020-10-27 13:55:36,157 WARN L193 SmtUtils]: Spent 932.00 ms on a formula simplification that was a NOOP. DAG size: 341 [2020-10-27 13:56:00,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 13:56:00,676 INFO L93 Difference]: Finished difference Result 3758 states and 4869 transitions. [2020-10-27 13:56:00,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 13:56:00,678 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 109 [2020-10-27 13:56:00,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 13:56:00,693 INFO L225 Difference]: With dead ends: 3758 [2020-10-27 13:56:00,693 INFO L226 Difference]: Without dead ends: 2040 [2020-10-27 13:56:00,699 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=101, Invalid=451, Unknown=0, NotChecked=0, Total=552 [2020-10-27 13:56:00,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2040 states. [2020-10-27 13:56:01,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2040 to 1730. [2020-10-27 13:56:01,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1730 states. [2020-10-27 13:56:01,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1730 states to 1730 states and 2218 transitions. [2020-10-27 13:56:01,109 INFO L78 Accepts]: Start accepts. Automaton has 1730 states and 2218 transitions. Word has length 109 [2020-10-27 13:56:01,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 13:56:01,110 INFO L481 AbstractCegarLoop]: Abstraction has 1730 states and 2218 transitions. [2020-10-27 13:56:01,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 13:56:01,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1730 states and 2218 transitions. [2020-10-27 13:56:01,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-27 13:56:01,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 13:56:01,113 INFO L422 BasicCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-27 13:56:01,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 13:56:01,113 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 13:56:01,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 13:56:01,114 INFO L82 PathProgramCache]: Analyzing trace with hash 2083973218, now seen corresponding path program 3 times [2020-10-27 13:56:01,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 13:56:01,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [547196367] [2020-10-27 13:56:01,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 13:56:01,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:56:01,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:56:01,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:56:01,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:56:06,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:56:06,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-27 13:56:06,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 13:56:06,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5099 [2020-10-27 13:56:06,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:56:06,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 13:56:06,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-27 13:56:06,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 13:56:06,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:56:07,310 WARN L193 SmtUtils]: Spent 961.00 ms on a formula simplification that was a NOOP. DAG size: 337 [2020-10-27 13:56:07,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:56:07,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:56:07,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:56:07,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:56:07,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:56:07,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:56:07,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-27 13:56:07,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:56:07,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:56:07,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:56:07,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:56:07,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:56:07,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 13:56:07,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:56:07,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:56:07,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:56:07,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 13:56:07,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:56:07,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 13:56:07,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:56:07,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:56:07,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:56:07,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:56:07,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:56:07,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:56:07,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:56:07,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:56:07,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:56:07,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:56:07,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:56:07,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 13:56:07,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:56:07,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:56:07,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:56:07,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:56:07,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:56:07,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 13:56:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:56:07,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:56:07,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:56:07,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:56:07,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:56:07,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 13:56:07,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:56:07,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:56:07,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:56:07,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:56:07,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:56:07,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 13:56:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:56:07,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:56:07,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:56:07,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 13:56:07,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:56:07,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 13:56:07,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:56:07,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:56:07,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:56:07,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:56:07,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:56:07,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:56:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:56:07,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:56:07,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:56:07,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:56:07,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:56:07,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 13:56:07,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:56:07,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:56:07,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:56:07,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:56:07,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:56:07,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 13:56:07,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:56:07,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:56:07,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:56:07,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:56:07,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:56:07,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 13:56:07,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:56:07,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:56:07,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:56:07,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:56:07,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:56:07,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 13:56:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:56:07,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:56:07,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:56:07,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 13:56:07,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:56:07,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 13:56:07,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:56:07,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:56:07,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:56:07,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:56:07,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:56:07,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:56:07,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:56:07,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:56:07,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:56:07,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:56:07,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:56:07,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 13:56:07,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:56:07,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:56:07,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:56:07,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:56:07,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:56:07,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 13:56:07,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:56:07,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:56:07,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:56:07,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 13:56:07,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:56:07,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 13:56:07,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:56:07,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:56:07,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:56:07,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:56:07,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:56:07,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 13:56:07,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:56:07,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:56:07,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:56:07,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 13:56:07,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:56:07,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 13:56:07,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:56:07,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:56:07,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:56:07,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:56:07,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:56:07,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 13:56:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:56:07,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:56:07,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:56:07,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 13:56:07,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:56:07,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-27 13:56:07,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:56:07,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 13:56:07,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 13:56:07,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 13:56:07,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:56:07,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:56:07,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:56:07,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:56:07,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:56:07,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 13:56:07,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:56:07,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-27 13:56:07,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:56:07,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 13:56:07,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:56:07,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 13:56:07,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:56:07,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 13:56:07,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:56:07,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:56:07,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:56:08,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:56:08,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 13:56:08,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 13:56:08,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-27 13:56:08,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:56:08,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 13:56:08,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 13:56:08,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 13:56:08,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:56:08,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:56:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:56:08,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:56:08,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:56:08,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 13:56:08,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:56:08,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-27 13:56:08,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:56:08,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 13:56:08,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:56:08,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 13:56:08,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:56:08,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 13:56:08,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:56:08,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:56:08,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:56:08,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 13:56:08,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:56:08,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 13:56:08,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:56:08,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:56:08,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 13:56:08,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:56:08,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:56:08,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 13:56:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:56:08,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:56:08,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:56:08,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 13:56:08,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:56:08,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 13:56:08,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:56:08,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:56:08,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:56:08,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:56:08,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:56:08,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 13:56:08,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 13:56:08,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 13:56:08,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 13:56:08,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 13:56:08,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 13:56:08,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 13:56:08,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 13:56:08,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 13:56:08,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 13:56:08,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 13:56:08,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 13:56:08,409 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 3 proven. 25 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-10-27 13:56:08,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [547196367] [2020-10-27 13:56:08,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 13:56:08,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-27 13:56:08,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164421260] [2020-10-27 13:56:08,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-27 13:56:08,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 13:56:08,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-27 13:56:08,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-10-27 13:56:08,412 INFO L87 Difference]: Start difference. First operand 1730 states and 2218 transitions. Second operand 16 states.