/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --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=NARROWEST --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 -i ../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 23:03:17,942 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 23:03:17,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 23:03:17,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 23:03:17,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 23:03:17,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 23:03:17,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 23:03:17,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 23:03:17,999 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 23:03:18,002 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 23:03:18,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 23:03:18,003 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 23:03:18,004 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 23:03:18,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 23:03:18,008 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 23:03:18,009 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 23:03:18,011 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 23:03:18,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 23:03:18,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 23:03:18,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 23:03:18,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 23:03:18,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 23:03:18,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 23:03:18,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 23:03:18,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 23:03:18,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 23:03:18,041 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 23:03:18,042 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 23:03:18,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 23:03:18,044 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 23:03:18,044 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 23:03:18,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 23:03:18,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 23:03:18,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 23:03:18,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 23:03:18,050 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 23:03:18,052 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 23:03:18,053 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 23:03:18,053 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 23:03:18,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 23:03:18,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 23:03:18,055 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 [2020-10-13 23:03:18,094 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 23:03:18,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 23:03:18,096 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 23:03:18,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 23:03:18,097 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 23:03:18,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 23:03:18,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 23:03:18,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 23:03:18,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 23:03:18,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 23:03:18,099 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 23:03:18,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 23:03:18,099 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 23:03:18,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 23:03:18,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 23:03:18,101 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 23:03:18,101 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 23:03:18,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 23:03:18,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 23:03:18,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 23:03:18,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 23:03:18,102 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 23:03:18,102 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 23:03:18,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 23:03:18,103 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 23:03:18,103 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 23:03:18,103 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 23:03:18,103 INFO L138 SettingsManager]: * To the following directory=dump/ 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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 23:03:18,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 23:03:18,400 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 23:03:18,403 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 23:03:18,404 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 23:03:18,405 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 23:03:18,406 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2020-10-13 23:03:18,462 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f9831a616/a27f4f2804784b5ca60b2a460af66853/FLAG80e9c50ea [2020-10-13 23:03:19,151 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 23:03:19,152 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2020-10-13 23:03:19,185 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f9831a616/a27f4f2804784b5ca60b2a460af66853/FLAG80e9c50ea [2020-10-13 23:03:19,337 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f9831a616/a27f4f2804784b5ca60b2a460af66853 [2020-10-13 23:03:19,345 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 23:03:19,346 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 23:03:19,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 23:03:19,348 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 23:03:19,351 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 23:03:19,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:03:19" (1/1) ... [2020-10-13 23:03:19,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@81c79d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:19, skipping insertion in model container [2020-10-13 23:03:19,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:03:19" (1/1) ... [2020-10-13 23:03:19,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 23:03:19,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 23:03:20,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 23:03:20,839 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 23:03:21,089 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 23:03:21,279 INFO L208 MainTranslator]: Completed translation [2020-10-13 23:03:21,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:21 WrapperNode [2020-10-13 23:03:21,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 23:03:21,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 23:03:21,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 23:03:21,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 23:03:21,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:21" (1/1) ... [2020-10-13 23:03:21,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:21" (1/1) ... [2020-10-13 23:03:21,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:21" (1/1) ... [2020-10-13 23:03:21,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:21" (1/1) ... [2020-10-13 23:03:21,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:21" (1/1) ... [2020-10-13 23:03:21,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:21" (1/1) ... [2020-10-13 23:03:21,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:21" (1/1) ... [2020-10-13 23:03:21,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 23:03:21,497 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 23:03:21,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 23:03:21,497 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 23:03:21,498 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:21" (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 [2020-10-13 23:03:21,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 23:03:21,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 23:03:21,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2020-10-13 23:03:21,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-10-13 23:03:21,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-13 23:03:21,579 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2020-10-13 23:03:21,580 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-10-13 23:03:21,581 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-10-13 23:03:21,581 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2020-10-13 23:03:21,582 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-13 23:03:21,582 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-13 23:03:21,583 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2020-10-13 23:03:21,583 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2020-10-13 23:03:21,583 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2020-10-13 23:03:21,583 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create_kmalloc_pool [2020-10-13 23:03:21,583 INFO L138 BoogieDeclarations]: Found implementation of procedure req_get_ioprio [2020-10-13 23:03:21,583 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2020-10-13 23:03:21,588 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_logical_block_size [2020-10-13 23:03:21,588 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 23:03:21,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 23:03:21,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-13 23:03:21,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2020-10-13 23:03:21,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2020-10-13 23:03:21,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-13 23:03:21,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-13 23:03:21,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-13 23:03:21,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-13 23:03:21,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-13 23:03:21,590 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-13 23:03:21,590 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_assign_page [2020-10-13 23:03:21,590 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2020-10-13 23:03:21,591 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_buf [2020-10-13 23:03:21,591 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_add_buf [2020-10-13 23:03:21,591 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_has_feature [2020-10-13 23:03:21,591 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_config_buf [2020-10-13 23:03:21,591 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_find_single_vq [2020-10-13 23:03:21,592 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_done [2020-10-13 23:03:21,592 INFO L138 BoogieDeclarations]: Found implementation of procedure do_req [2020-10-13 23:03:21,592 INFO L138 BoogieDeclarations]: Found implementation of procedure do_virtblk_request [2020-10-13 23:03:21,592 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_prepare_flush [2020-10-13 23:03:21,592 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_get_id [2020-10-13 23:03:21,592 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_ioctl [2020-10-13 23:03:21,592 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_getgeo [2020-10-13 23:03:21,592 INFO L138 BoogieDeclarations]: Found implementation of procedure index_to_minor [2020-10-13 23:03:21,593 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_probe [2020-10-13 23:03:21,593 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_remove [2020-10-13 23:03:21,593 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-13 23:03:21,593 INFO L138 BoogieDeclarations]: Found implementation of procedure fini [2020-10-13 23:03:21,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_virtio_driver_1 [2020-10-13 23:03:21,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_block_device_operations_2 [2020-10-13 23:03:21,593 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 23:03:21,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2020-10-13 23:03:21,594 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-10-13 23:03:21,594 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-13 23:03:21,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blk_make_request_5 [2020-10-13 23:03:21,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 23:03:21,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-13 23:03:21,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-13 23:03:21,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-13 23:03:21,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-13 23:03:21,595 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR___0 [2020-10-13 23:03:21,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blk_get_request [2020-10-13 23:03:21,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blk_make_request [2020-10-13 23:03:21,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_blk_rq [2020-10-13 23:03:21,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 23:03:21,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_all [2020-10-13 23:03:21,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-10-13 23:03:21,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2020-10-13 23:03:21,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-13 23:03:21,597 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2020-10-13 23:03:21,597 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2020-10-13 23:03:21,597 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-13 23:03:21,598 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2020-10-13 23:03:21,599 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_disk [2020-10-13 23:03:21,599 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_map_kern [2020-10-13 23:03:21,599 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_put [2020-10-13 23:03:21,599 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2020-10-13 23:03:21,599 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_execute_rq [2020-10-13 23:03:21,599 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_init_queue [2020-10-13 23:03:21,600 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_peek_request [2020-10-13 23:03:21,600 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_alignment_offset [2020-10-13 23:03:21,600 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_bounce_limit [2020-10-13 23:03:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_io_min [2020-10-13 23:03:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_io_opt [2020-10-13 23:03:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_logical_block_size [2020-10-13 23:03:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_hw_sectors [2020-10-13 23:03:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segment_size [2020-10-13 23:03:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segments [2020-10-13 23:03:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_ordered [2020-10-13 23:03:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_physical_block_size [2020-10-13 23:03:21,602 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_map_sg [2020-10-13 23:03:21,602 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_queue [2020-10-13 23:03:21,602 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_request [2020-10-13 23:03:21,602 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_stop_queue [2020-10-13 23:03:21,602 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2020-10-13 23:03:21,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 23:03:21,602 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-10-13 23:03:21,603 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_alloc [2020-10-13 23:03:21,603 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create [2020-10-13 23:03:21,603 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2020-10-13 23:03:21,603 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_free [2020-10-13 23:03:21,603 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2020-10-13 23:03:21,603 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2020-10-13 23:03:21,603 INFO L138 BoogieDeclarations]: Found implementation of procedure register_blkdev [2020-10-13 23:03:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure register_virtio_driver [2020-10-13 23:03:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_cmd_ioctl [2020-10-13 23:03:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure set_disk_ro [2020-10-13 23:03:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_init_table [2020-10-13 23:03:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2020-10-13 23:03:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_virtio_driver [2020-10-13 23:03:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_check_driver_offered_feature [2020-10-13 23:03:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_add_buf_gfp [2020-10-13 23:03:21,605 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_get_buf [2020-10-13 23:03:21,605 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_kick [2020-10-13 23:03:21,605 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 23:03:21,605 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-13 23:03:21,606 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-13 23:03:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 23:03:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-13 23:03:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2020-10-13 23:03:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2020-10-13 23:03:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-10-13 23:03:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2020-10-13 23:03:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-13 23:03:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2020-10-13 23:03:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-10-13 23:03:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-13 23:03:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-10-13 23:03:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 23:03:21,612 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-10-13 23:03:21,612 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-10-13 23:03:21,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 23:03:21,613 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-10-13 23:03:21,613 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2020-10-13 23:03:21,613 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-13 23:03:21,613 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2020-10-13 23:03:21,613 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-13 23:03:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-13 23:03:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-13 23:03:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure register_blkdev [2020-10-13 23:03:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2020-10-13 23:03:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2020-10-13 23:03:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2020-10-13 23:03:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure set_disk_ro [2020-10-13 23:03:21,615 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2020-10-13 23:03:21,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 23:03:21,615 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2020-10-13 23:03:21,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 23:03:21,615 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_disk [2020-10-13 23:03:21,615 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2020-10-13 23:03:21,615 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2020-10-13 23:03:21,616 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2020-10-13 23:03:21,616 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create [2020-10-13 23:03:21,616 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2020-10-13 23:03:21,616 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_alloc [2020-10-13 23:03:21,616 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free [2020-10-13 23:03:21,616 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_kmalloc [2020-10-13 23:03:21,616 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_kfree [2020-10-13 23:03:21,617 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create_kmalloc_pool [2020-10-13 23:03:21,617 INFO L130 BoogieDeclarations]: Found specification of procedure bio_put [2020-10-13 23:03:21,617 INFO L130 BoogieDeclarations]: Found specification of procedure bio_map_kern [2020-10-13 23:03:21,617 INFO L130 BoogieDeclarations]: Found specification of procedure req_get_ioprio [2020-10-13 23:03:21,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blk_make_request_5 [2020-10-13 23:03:21,617 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_cmd_ioctl [2020-10-13 23:03:21,617 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_queue [2020-10-13 23:03:21,617 INFO L130 BoogieDeclarations]: Found specification of procedure blk_stop_queue [2020-10-13 23:03:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure blk_execute_rq [2020-10-13 23:03:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2020-10-13 23:03:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure blk_peek_request [2020-10-13 23:03:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_request [2020-10-13 23:03:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_all [2020-10-13 23:03:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure blk_init_queue [2020-10-13 23:03:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2020-10-13 23:03:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_bounce_limit [2020-10-13 23:03:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_hw_sectors [2020-10-13 23:03:21,619 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segments [2020-10-13 23:03:21,619 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segment_size [2020-10-13 23:03:21,619 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_logical_block_size [2020-10-13 23:03:21,619 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_physical_block_size [2020-10-13 23:03:21,619 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_alignment_offset [2020-10-13 23:03:21,619 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_io_min [2020-10-13 23:03:21,619 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_io_opt [2020-10-13 23:03:21,619 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_ordered [2020-10-13 23:03:21,620 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_map_sg [2020-10-13 23:03:21,620 INFO L130 BoogieDeclarations]: Found specification of procedure queue_logical_block_size [2020-10-13 23:03:21,620 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 23:03:21,620 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 23:03:21,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 23:03:21,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 23:03:21,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-13 23:03:21,620 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 23:03:21,621 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 23:03:21,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 23:03:21,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 23:03:21,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-13 23:03:21,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-13 23:03:21,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2020-10-13 23:03:21,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2020-10-13 23:03:21,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-13 23:03:21,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-13 23:03:21,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-13 23:03:21,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-13 23:03:21,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blk_make_request [2020-10-13 23:03:21,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-13 23:03:21,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-13 23:03:21,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-13 23:03:21,622 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 23:03:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-13 23:03:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-13 23:03:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_virtio_driver_1 [2020-10-13 23:03:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_block_device_operations_2 [2020-10-13 23:03:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure sg_assign_page [2020-10-13 23:03:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2020-10-13 23:03:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_buf [2020-10-13 23:03:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure sg_init_table [2020-10-13 23:03:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_add_buf_gfp [2020-10-13 23:03:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_add_buf [2020-10-13 23:03:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_kick [2020-10-13 23:03:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_get_buf [2020-10-13 23:03:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure register_virtio_driver [2020-10-13 23:03:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_virtio_driver [2020-10-13 23:03:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_check_driver_offered_feature [2020-10-13 23:03:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_has_feature [2020-10-13 23:03:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_config_buf [2020-10-13 23:03:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2020-10-13 23:03:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_find_single_vq [2020-10-13 23:03:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 23:03:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-10-13 23:03:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 23:03:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure blk_done [2020-10-13 23:03:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure do_req [2020-10-13 23:03:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure do_virtblk_request [2020-10-13 23:03:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_prepare_flush [2020-10-13 23:03:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_get_id [2020-10-13 23:03:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_ioctl [2020-10-13 23:03:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_getgeo [2020-10-13 23:03:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure index_to_minor [2020-10-13 23:03:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_probe [2020-10-13 23:03:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-13 23:03:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_remove [2020-10-13 23:03:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 23:03:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure fini [2020-10-13 23:03:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 23:03:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 23:03:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 23:03:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 23:03:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-13 23:03:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR___0 [2020-10-13 23:03:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blk_get_request [2020-10-13 23:03:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_blk_rq [2020-10-13 23:03:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 23:03:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 23:03:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 23:03:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 23:03:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 23:03:22,632 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-13 23:03:23,516 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 23:03:23,516 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 23:03:23,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:03:23 BoogieIcfgContainer [2020-10-13 23:03:23,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 23:03:23,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 23:03:23,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 23:03:23,529 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 23:03:23,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:03:19" (1/3) ... [2020-10-13 23:03:23,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d1d7063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:03:23, skipping insertion in model container [2020-10-13 23:03:23,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:21" (2/3) ... [2020-10-13 23:03:23,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d1d7063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:03:23, skipping insertion in model container [2020-10-13 23:03:23,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:03:23" (3/3) ... [2020-10-13 23:03:23,532 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2020-10-13 23:03:23,543 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 23:03:23,551 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 23:03:23,565 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 23:03:23,595 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 23:03:23,595 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 23:03:23,595 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 23:03:23,595 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 23:03:23,595 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 23:03:23,596 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 23:03:23,596 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 23:03:23,596 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 23:03:23,631 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states. [2020-10-13 23:03:23,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-13 23:03:23,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:03:23,643 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:03:23,644 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:03:23,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:03:23,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1002701048, now seen corresponding path program 1 times [2020-10-13 23:03:23,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:03:23,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [443821201] [2020-10-13 23:03:23,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:03:23,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:24,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:24,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:24,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:24,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:29,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:29,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-13 23:03:29,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 23:03:29,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 23:03:29,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:29,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:29,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-13 23:03:29,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:29,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 23:03:29,238 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 23:03:29,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:03:29,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:29,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:29,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:29,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:03:29,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:29,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 23:03:29,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:29,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:29,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:03:29,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:29,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:03:29,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:03:29,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:29,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:29,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:29,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 23:03:29,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:29,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 23:03:29,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:29,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:29,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 23:03:29,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:29,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:03:29,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:03:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:29,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:29,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:29,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:03:29,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:29,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 23:03:29,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:29,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:29,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:03:29,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:29,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:03:29,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:03:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:29,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:29,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:29,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:03:29,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:29,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 23:03:29,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:29,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:29,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 23:03:29,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:29,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:03:29,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 23:03:29,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:29,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:29,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:29,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 23:03:29,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:29,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 23:03:29,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:29,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:29,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 23:03:29,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:29,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:03:29,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 23:03:29,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:29,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:29,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:29,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:29,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:03:29,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:03:29,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-13 23:03:29,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:29,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:29,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:03:29,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:29,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:03:29,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:03:29,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:29,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:29,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:29,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:03:29,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:29,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 23:03:29,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:29,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:29,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:03:29,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:29,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:03:29,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 23:03:29,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:29,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:29,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:29,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:29,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:03:29,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:03:29,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-13 23:03:29,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:29,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:29,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:03:29,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:29,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 23:03:29,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:03:29,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:29,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:29,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:29,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:03:29,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:29,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:03:29,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:29,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:29,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:03:29,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:29,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:03:29,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 23:03:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:29,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:29,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:29,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 23:03:29,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:29,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 23:03:29,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:29,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:29,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 23:03:29,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:29,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:03:29,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:03:29,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:29,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:29,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:29,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:03:29,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:29,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:03:29,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:29,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:29,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:03:29,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:29,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:03:29,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-13 23:03:29,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:29,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:29,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:29,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:03:29,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:29,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:03:29,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:29,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:29,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:03:29,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:29,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:03:29,804 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-13 23:03:29,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [443821201] [2020-10-13 23:03:29,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:03:29,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 23:03:29,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243071643] [2020-10-13 23:03:29,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 23:03:29,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:03:29,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 23:03:29,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 23:03:29,831 INFO L87 Difference]: Start difference. First operand 789 states. Second operand 6 states. [2020-10-13 23:03:30,042 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 23:03:35,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:03:35,468 INFO L93 Difference]: Finished difference Result 1801 states and 2309 transitions. [2020-10-13 23:03:35,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 23:03:35,470 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2020-10-13 23:03:35,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:03:35,507 INFO L225 Difference]: With dead ends: 1801 [2020-10-13 23:03:35,507 INFO L226 Difference]: Without dead ends: 1020 [2020-10-13 23:03:35,517 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-13 23:03:35,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2020-10-13 23:03:35,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 743. [2020-10-13 23:03:35,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 743 states. [2020-10-13 23:03:35,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 882 transitions. [2020-10-13 23:03:35,705 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 882 transitions. Word has length 69 [2020-10-13 23:03:35,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:03:35,706 INFO L479 AbstractCegarLoop]: Abstraction has 743 states and 882 transitions. [2020-10-13 23:03:35,706 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 23:03:35,706 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 882 transitions. [2020-10-13 23:03:35,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-13 23:03:35,710 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:03:35,711 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:03:35,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 23:03:35,711 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:03:35,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:03:35,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1878720054, now seen corresponding path program 1 times [2020-10-13 23:03:35,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:03:35,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [155284820] [2020-10-13 23:03:35,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:03:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:35,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:35,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:35,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:38,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:40,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:40,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-13 23:03:40,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 23:03:40,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-13 23:03:40,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:40,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:03:40,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-13 23:03:40,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 23:03:40,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:03:41,011 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 23:03:41,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:03:41,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:41,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:41,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:41,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:03:41,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:41,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 23:03:41,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:41,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:41,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:03:41,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:41,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:03:41,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:03:41,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:41,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:41,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:41,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 23:03:41,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:41,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 23:03:41,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:41,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:41,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:03:41,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:41,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:03:41,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:03:41,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:41,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:41,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:41,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:03:41,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:41,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 23:03:41,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:41,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:41,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:03:41,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:41,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:03:41,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:03:41,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:41,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:41,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:41,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:03:41,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:41,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:03:41,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:41,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:41,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:03:41,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:41,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:03:41,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 23:03:41,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:41,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:41,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:41,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 23:03:41,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:41,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:03:41,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:41,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:41,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:03:41,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:41,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:03:41,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 23:03:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:41,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:41,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:41,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:41,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:03:41,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:03:41,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 23:03:41,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:41,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:41,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:03:41,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:41,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:03:41,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:03:41,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:41,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:41,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:41,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:03:41,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:41,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:03:41,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:41,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:41,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:03:41,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:41,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:03:41,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 23:03:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:41,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:41,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:41,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:41,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:03:41,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:03:41,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 23:03:41,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:41,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:41,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:03:41,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:41,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:03:41,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:03:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:41,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:41,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:41,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:03:41,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:41,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:03:41,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:41,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:41,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:03:41,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:41,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:03:41,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 23:03:41,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:41,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:41,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:41,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 23:03:41,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:41,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 23:03:41,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:41,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:41,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 23:03:41,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:41,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:03:41,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:03:41,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:41,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:41,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:41,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:03:41,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:41,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:03:41,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:41,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:41,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:03:41,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:41,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:03:41,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-13 23:03:41,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:41,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:41,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:41,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:03:41,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:41,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:03:41,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:41,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:41,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:03:41,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:41,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:03:41,405 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-13 23:03:41,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [155284820] [2020-10-13 23:03:41,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:03:41,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 23:03:41,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045390430] [2020-10-13 23:03:41,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 23:03:41,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:03:41,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 23:03:41,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-13 23:03:41,409 INFO L87 Difference]: Start difference. First operand 743 states and 882 transitions. Second operand 7 states. [2020-10-13 23:03:41,538 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 23:03:41,731 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-13 23:03:41,905 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-13 23:03:51,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:03:51,943 INFO L93 Difference]: Finished difference Result 1982 states and 2540 transitions. [2020-10-13 23:03:51,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 23:03:51,944 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-10-13 23:03:51,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:03:51,958 INFO L225 Difference]: With dead ends: 1982 [2020-10-13 23:03:51,958 INFO L226 Difference]: Without dead ends: 1965 [2020-10-13 23:03:51,960 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-13 23:03:51,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2020-10-13 23:03:52,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1414. [2020-10-13 23:03:52,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1414 states. [2020-10-13 23:03:52,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1414 states to 1414 states and 1685 transitions. [2020-10-13 23:03:52,138 INFO L78 Accepts]: Start accepts. Automaton has 1414 states and 1685 transitions. Word has length 69 [2020-10-13 23:03:52,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:03:52,138 INFO L479 AbstractCegarLoop]: Abstraction has 1414 states and 1685 transitions. [2020-10-13 23:03:52,138 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 23:03:52,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1414 states and 1685 transitions. [2020-10-13 23:03:52,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-13 23:03:52,141 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:03:52,141 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:03:52,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 23:03:52,142 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:03:52,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:03:52,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1071283527, now seen corresponding path program 1 times [2020-10-13 23:03:52,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:03:52,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [730037965] [2020-10-13 23:03:52,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:03:52,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:52,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:52,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:52,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:57,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:57,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-13 23:03:57,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 23:03:57,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-13 23:03:57,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:57,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 23:03:57,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-13 23:03:57,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 23:03:57,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:03:57,360 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 23:03:57,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:03:57,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:57,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:57,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:57,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:03:57,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:57,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 23:03:57,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:57,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:57,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:03:57,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:57,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:03:57,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:03:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:57,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:57,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:57,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 23:03:57,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:57,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 23:03:57,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:57,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:57,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:03:57,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:57,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:03:57,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:03:57,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:57,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:57,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:57,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:03:57,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:57,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:03:57,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:57,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:57,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:03:57,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:57,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:03:57,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:03:57,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:57,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:57,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:57,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:03:57,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:57,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:03:57,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:57,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:57,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:03:57,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:57,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:03:57,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 23:03:57,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:57,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:57,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:57,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 23:03:57,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:57,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:03:57,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:57,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:57,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:03:57,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:57,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:03:57,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 23:03:57,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:57,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:57,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:57,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:03:57,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:57,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 23:03:57,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:57,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 23:03:57,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 23:03:57,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 23:03:57,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:03:57,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:03:57,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:57,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:57,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:57,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:03:57,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:57,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 23:03:57,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:57,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 23:03:57,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:03:57,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 23:03:57,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:03:57,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 23:03:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:57,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:57,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:57,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:57,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:03:57,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:03:57,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 23:03:57,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:57,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:57,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:03:57,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:57,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:03:57,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:03:57,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:57,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:57,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:57,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:03:57,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:57,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:03:57,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:57,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:57,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:03:57,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:57,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:03:57,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 23:03:57,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:57,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:57,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:57,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:03:57,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:57,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 23:03:57,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:57,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:57,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:03:57,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:57,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:03:57,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:03:57,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:03:57,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:03:57,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:03:57,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:03:57,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:03:57,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:03:57,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:03:57,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:03:57,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:03:57,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:03:57,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:03:57,844 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-13 23:03:57,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [730037965] [2020-10-13 23:03:57,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:03:57,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-13 23:03:57,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961877252] [2020-10-13 23:03:57,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 23:03:57,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:03:57,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 23:03:57,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-13 23:03:57,847 INFO L87 Difference]: Start difference. First operand 1414 states and 1685 transitions. Second operand 11 states. [2020-10-13 23:03:57,989 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 23:03:58,396 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-13 23:03:58,552 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 23:03:58,747 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-13 23:03:58,969 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-13 23:03:59,168 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-13 23:04:07,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:04:07,678 INFO L93 Difference]: Finished difference Result 3391 states and 4245 transitions. [2020-10-13 23:04:07,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 23:04:07,683 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 71 [2020-10-13 23:04:07,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:04:07,696 INFO L225 Difference]: With dead ends: 3391 [2020-10-13 23:04:07,696 INFO L226 Difference]: Without dead ends: 1994 [2020-10-13 23:04:07,701 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2020-10-13 23:04:07,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1994 states. [2020-10-13 23:04:07,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1994 to 1415. [2020-10-13 23:04:07,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1415 states. [2020-10-13 23:04:07,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 1686 transitions. [2020-10-13 23:04:07,872 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 1686 transitions. Word has length 71 [2020-10-13 23:04:07,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:04:07,875 INFO L479 AbstractCegarLoop]: Abstraction has 1415 states and 1686 transitions. [2020-10-13 23:04:07,875 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 23:04:07,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 1686 transitions. [2020-10-13 23:04:07,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-13 23:04:07,882 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:04:07,882 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:04:07,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 23:04:07,882 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:04:07,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:04:07,883 INFO L82 PathProgramCache]: Analyzing trace with hash 925423675, now seen corresponding path program 1 times [2020-10-13 23:04:07,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:04:07,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [445253970] [2020-10-13 23:04:07,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:04:07,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:07,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:08,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:08,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:12,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:12,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-13 23:04:12,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 23:04:12,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-13 23:04:12,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:12,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 23:04:12,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-13 23:04:12,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 23:04:12,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 23:04:13,134 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 23:04:13,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:04:13,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:13,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:13,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:13,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:04:13,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:13,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 23:04:13,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:13,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:04:13,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:04:13,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:04:13,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:04:13,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:04:13,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:13,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:13,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:13,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 23:04:13,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:13,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 23:04:13,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:13,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:04:13,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:04:13,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:04:13,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:04:13,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:04:13,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:13,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:13,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:13,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:04:13,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:13,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:04:13,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:13,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:04:13,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:04:13,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:04:13,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:04:13,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:04:13,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:13,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:13,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:13,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:04:13,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:13,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:04:13,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:13,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:04:13,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:04:13,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:04:13,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:04:13,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 23:04:13,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:13,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:13,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:13,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 23:04:13,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:13,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:04:13,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:13,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:04:13,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:04:13,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:04:13,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:04:13,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 23:04:13,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:13,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:13,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:13,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 23:04:13,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:13,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 23:04:13,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:13,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 23:04:13,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 23:04:13,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 23:04:13,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:04:13,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:04:13,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:13,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:13,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:13,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 23:04:13,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:13,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 23:04:13,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:13,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 23:04:13,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:04:13,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 23:04:13,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:04:13,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-13 23:04:13,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:13,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:13,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:13,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:13,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 23:04:13,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:04:13,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-13 23:04:13,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:13,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:04:13,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 23:04:13,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:04:13,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:04:13,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:04:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:13,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:13,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:13,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 23:04:13,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:13,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 23:04:13,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:13,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:04:13,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:04:13,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:04:13,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:04:13,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 23:04:13,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:13,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:13,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:13,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:04:13,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:13,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:04:13,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:13,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:04:13,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:04:13,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:04:13,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:04:13,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:04:13,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:13,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:13,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:13,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:04:13,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:13,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:04:13,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:13,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:04:13,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:04:13,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:04:13,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:04:13,606 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 23:04:13,606 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [445253970] [2020-10-13 23:04:13,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:04:13,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 23:04:13,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048735986] [2020-10-13 23:04:13,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 23:04:13,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:04:13,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 23:04:13,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-13 23:04:13,608 INFO L87 Difference]: Start difference. First operand 1415 states and 1686 transitions. Second operand 12 states. [2020-10-13 23:04:13,739 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 23:04:14,169 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-13 23:04:14,332 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-13 23:04:14,480 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-13 23:04:14,643 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 23:04:14,843 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 23:04:15,036 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-13 23:04:24,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:04:24,012 INFO L93 Difference]: Finished difference Result 3393 states and 4247 transitions. [2020-10-13 23:04:24,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 23:04:24,013 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 73 [2020-10-13 23:04:24,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:04:24,025 INFO L225 Difference]: With dead ends: 3393 [2020-10-13 23:04:24,025 INFO L226 Difference]: Without dead ends: 1995 [2020-10-13 23:04:24,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2020-10-13 23:04:24,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1995 states. [2020-10-13 23:04:24,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1995 to 1416. [2020-10-13 23:04:24,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1416 states. [2020-10-13 23:04:24,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 1687 transitions. [2020-10-13 23:04:24,200 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 1687 transitions. Word has length 73 [2020-10-13 23:04:24,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:04:24,201 INFO L479 AbstractCegarLoop]: Abstraction has 1416 states and 1687 transitions. [2020-10-13 23:04:24,201 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 23:04:24,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 1687 transitions. [2020-10-13 23:04:24,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-13 23:04:24,203 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:04:24,203 INFO L422 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:04:24,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 23:04:24,203 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:04:24,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:04:24,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1458119367, now seen corresponding path program 2 times [2020-10-13 23:04:24,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:04:24,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298566165] [2020-10-13 23:04:24,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:04:24,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:24,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:24,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:24,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:29,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:29,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 23:04:29,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 23:04:29,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-13 23:04:29,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:29,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 23:04:29,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-13 23:04:29,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 23:04:29,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:04:29,409 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 23:04:29,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:04:29,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:29,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:29,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:29,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:04:29,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:29,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 23:04:29,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:29,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:04:29,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:04:29,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:04:29,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:04:29,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:04:29,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:29,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:29,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:29,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 23:04:29,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:29,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 23:04:29,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:29,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:04:29,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:04:29,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:04:29,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:04:29,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:04:29,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:29,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:29,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:29,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:04:29,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:29,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:04:29,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:29,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:04:29,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:04:29,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:04:29,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:04:29,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:04:29,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:29,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:29,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:29,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:04:29,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:29,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:04:29,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:29,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:04:29,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:04:29,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:04:29,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:04:29,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 23:04:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:29,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:29,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:29,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 23:04:29,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:29,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:04:29,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:29,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:04:29,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:04:29,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:04:29,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:04:29,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 23:04:29,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:29,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:29,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:29,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 23:04:29,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:29,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 23:04:29,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:29,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 23:04:29,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 23:04:29,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 23:04:29,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:04:29,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:04:29,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:29,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:29,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:29,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 23:04:29,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:29,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 23:04:29,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:29,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 23:04:29,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:04:29,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 23:04:29,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:04:29,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 23:04:29,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:29,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:29,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:29,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:29,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 23:04:29,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:04:29,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-13 23:04:29,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:29,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:04:29,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 23:04:29,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:04:29,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:04:29,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:04:29,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:29,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:29,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:29,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 23:04:29,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:29,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 23:04:29,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:29,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:04:29,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:04:29,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:04:29,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:04:29,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-13 23:04:29,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:29,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:29,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:29,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:04:29,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:29,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 23:04:29,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:29,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:04:29,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:04:29,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:04:29,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:04:29,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:04:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:29,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:29,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:29,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:04:29,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:29,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:04:29,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:29,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:04:29,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:04:29,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:04:29,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:04:29,962 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 23:04:29,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1298566165] [2020-10-13 23:04:29,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:04:29,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 23:04:29,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836443984] [2020-10-13 23:04:29,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 23:04:29,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:04:29,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 23:04:29,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-10-13 23:04:29,966 INFO L87 Difference]: Start difference. First operand 1416 states and 1687 transitions. Second operand 13 states. [2020-10-13 23:04:30,170 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 23:04:30,842 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-13 23:04:31,003 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-13 23:04:31,155 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 23:04:31,308 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-13 23:04:31,474 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 23:04:31,686 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-13 23:04:31,876 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-13 23:04:43,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:04:43,423 INFO L93 Difference]: Finished difference Result 3395 states and 4249 transitions. [2020-10-13 23:04:43,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 23:04:43,424 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 75 [2020-10-13 23:04:43,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:04:43,433 INFO L225 Difference]: With dead ends: 3395 [2020-10-13 23:04:43,434 INFO L226 Difference]: Without dead ends: 1996 [2020-10-13 23:04:43,439 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=108, Invalid=444, Unknown=0, NotChecked=0, Total=552 [2020-10-13 23:04:43,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1996 states. [2020-10-13 23:04:43,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1996 to 1417. [2020-10-13 23:04:43,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1417 states. [2020-10-13 23:04:43,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1417 states to 1417 states and 1688 transitions. [2020-10-13 23:04:43,599 INFO L78 Accepts]: Start accepts. Automaton has 1417 states and 1688 transitions. Word has length 75 [2020-10-13 23:04:43,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:04:43,599 INFO L479 AbstractCegarLoop]: Abstraction has 1417 states and 1688 transitions. [2020-10-13 23:04:43,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 23:04:43,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1417 states and 1688 transitions. [2020-10-13 23:04:43,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-13 23:04:43,601 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:04:43,602 INFO L422 BasicCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:04:43,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 23:04:43,602 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:04:43,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:04:43,602 INFO L82 PathProgramCache]: Analyzing trace with hash 415215803, now seen corresponding path program 3 times [2020-10-13 23:04:43,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:04:43,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1224866217] [2020-10-13 23:04:43,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:04:43,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:43,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:43,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:43,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:48,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:48,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-13 23:04:48,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 23:04:48,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-13 23:04:48,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:48,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 23:04:48,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-13 23:04:48,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 23:04:48,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:04:48,844 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 23:04:48,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:04:48,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:48,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:48,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:48,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:04:48,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:48,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 23:04:48,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:48,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:04:48,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:04:48,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:04:48,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:04:48,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:04:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:48,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:48,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:48,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 23:04:48,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:48,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 23:04:48,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:48,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:04:48,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:04:48,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:04:48,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:04:48,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:04:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:48,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:48,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:48,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:04:48,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:48,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:04:48,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:48,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:04:48,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:04:48,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:04:48,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:04:48,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:04:48,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:48,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:48,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:48,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:04:48,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:48,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:04:48,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:48,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:04:48,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:04:48,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:04:48,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:04:48,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 23:04:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:48,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:48,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:48,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 23:04:48,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:48,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:04:48,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:48,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:04:48,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:04:48,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:04:48,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:04:48,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 23:04:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:48,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:49,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:49,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 23:04:49,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:49,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-13 23:04:49,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:49,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 23:04:49,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 23:04:49,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 23:04:49,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:04:49,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:04:49,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:49,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:49,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:49,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 23:04:49,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:49,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 23:04:49,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:49,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 23:04:49,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:04:49,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 23:04:49,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:04:49,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 23:04:49,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:49,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:49,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:49,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:49,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 23:04:49,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:04:49,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-13 23:04:49,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:49,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:04:49,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 23:04:49,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:04:49,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:04:49,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:04:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:49,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:49,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:49,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 23:04:49,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:49,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 23:04:49,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:49,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:04:49,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:04:49,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:04:49,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:04:49,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-13 23:04:49,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:49,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:49,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:49,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:04:49,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:49,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:04:49,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:49,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:04:49,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:04:49,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:04:49,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:04:49,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:04:49,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:04:49,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:04:49,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:04:49,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:04:49,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:04:49,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:04:49,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:04:49,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:04:49,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:04:49,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:04:49,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:04:49,378 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-13 23:04:49,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1224866217] [2020-10-13 23:04:49,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:04:49,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 23:04:49,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078196275] [2020-10-13 23:04:49,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 23:04:49,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:04:49,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 23:04:49,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-13 23:04:49,380 INFO L87 Difference]: Start difference. First operand 1417 states and 1688 transitions. Second operand 14 states. [2020-10-13 23:04:49,521 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 23:04:50,012 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-13 23:04:50,173 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 23:04:50,326 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 23:04:50,481 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 23:04:50,639 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-13 23:04:50,806 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 23:04:51,024 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-13 23:04:51,233 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-13 23:05:01,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:05:01,789 INFO L93 Difference]: Finished difference Result 3397 states and 4251 transitions. [2020-10-13 23:05:01,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 23:05:01,790 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 77 [2020-10-13 23:05:01,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:05:01,800 INFO L225 Difference]: With dead ends: 3397 [2020-10-13 23:05:01,800 INFO L226 Difference]: Without dead ends: 1997 [2020-10-13 23:05:01,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=115, Invalid=535, Unknown=0, NotChecked=0, Total=650 [2020-10-13 23:05:01,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2020-10-13 23:05:01,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1418. [2020-10-13 23:05:01,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1418 states. [2020-10-13 23:05:01,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 1689 transitions. [2020-10-13 23:05:01,970 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 1689 transitions. Word has length 77 [2020-10-13 23:05:01,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:05:01,970 INFO L479 AbstractCegarLoop]: Abstraction has 1418 states and 1689 transitions. [2020-10-13 23:05:01,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 23:05:01,971 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 1689 transitions. [2020-10-13 23:05:01,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-13 23:05:01,972 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:05:01,972 INFO L422 BasicCegarLoop]: trace histogram [8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:05:01,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 23:05:01,973 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:05:01,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:05:01,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1308796999, now seen corresponding path program 4 times [2020-10-13 23:05:01,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:05:01,973 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [273567292] [2020-10-13 23:05:01,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:05:02,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:02,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:02,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:03,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:03,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-13 23:05:03,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:05:03,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1775 [2020-10-13 23:05:03,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:03,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 23:05:03,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-13 23:05:03,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 23:05:03,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:05:03,928 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 23:05:03,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:05:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:03,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:03,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:03,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:05:03,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:03,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 23:05:03,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:03,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:05:03,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:05:03,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:05:03,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:05:03,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:05:03,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:03,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:03,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:03,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 23:05:03,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:03,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 23:05:03,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:03,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:05:03,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:05:03,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:05:03,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:05:03,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:05:03,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:03,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:03,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:03,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:05:03,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:03,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:05:03,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:03,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:05:03,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:05:03,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:05:03,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:05:03,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:05:03,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:03,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:03,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:03,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:05:03,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:03,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:05:03,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:03,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:05:03,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:05:03,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:05:03,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:05:04,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 23:05:04,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:04,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:04,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:04,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 23:05:04,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:04,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:05:04,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:04,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:05:04,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:05:04,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:05:04,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:05:04,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 23:05:04,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:04,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:04,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:04,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 23:05:04,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:04,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-13 23:05:04,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:04,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 23:05:04,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 23:05:04,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 23:05:04,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:05:04,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:05:04,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:04,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:04,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:04,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 23:05:04,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:04,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-13 23:05:04,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:04,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 23:05:04,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:05:04,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 23:05:04,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:05:04,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 23:05:04,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:04,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:04,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:04,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 23:05:04,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:04,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 23:05:04,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:04,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:05:04,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 23:05:04,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:05:04,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:05:04,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:05:04,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:04,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:04,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:04,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 23:05:04,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:04,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 23:05:04,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:04,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:05:04,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:05:04,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:05:04,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:05:04,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 23:05:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:04,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:04,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:04,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:05:04,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:04,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 23:05:04,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:04,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:05:04,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:05:04,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:05:04,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:05:04,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:05:04,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:04,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:04,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:04,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:05:04,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:04,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:05:04,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:04,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:05:04,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:05:04,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:05:04,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:05:04,531 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-13 23:05:04,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [273567292] [2020-10-13 23:05:04,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:05:04,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-13 23:05:04,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591998540] [2020-10-13 23:05:04,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-13 23:05:04,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:05:04,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-13 23:05:04,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-10-13 23:05:04,538 INFO L87 Difference]: Start difference. First operand 1418 states and 1689 transitions. Second operand 15 states. [2020-10-13 23:05:04,776 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 23:05:05,713 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-13 23:05:05,967 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 23:05:06,211 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 23:05:06,466 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 23:05:06,709 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 23:05:06,951 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-13 23:05:07,223 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 23:05:07,472 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-13 23:05:07,750 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-13 23:05:07,994 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 23:05:08,218 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-13 23:05:20,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:05:20,197 INFO L93 Difference]: Finished difference Result 3401 states and 4256 transitions. [2020-10-13 23:05:20,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 23:05:20,198 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 79 [2020-10-13 23:05:20,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:05:20,210 INFO L225 Difference]: With dead ends: 3401 [2020-10-13 23:05:20,210 INFO L226 Difference]: Without dead ends: 2005 [2020-10-13 23:05:20,215 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=151, Invalid=719, Unknown=0, NotChecked=0, Total=870 [2020-10-13 23:05:20,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2005 states. [2020-10-13 23:05:20,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2005 to 1426. [2020-10-13 23:05:20,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1426 states. [2020-10-13 23:05:20,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 1698 transitions. [2020-10-13 23:05:20,390 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 1698 transitions. Word has length 79 [2020-10-13 23:05:20,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:05:20,391 INFO L479 AbstractCegarLoop]: Abstraction has 1426 states and 1698 transitions. [2020-10-13 23:05:20,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-13 23:05:20,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 1698 transitions. [2020-10-13 23:05:20,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-13 23:05:20,392 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:05:20,392 INFO L422 BasicCegarLoop]: trace histogram [9, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:05:20,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 23:05:20,393 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:05:20,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:05:20,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1990595235, now seen corresponding path program 5 times [2020-10-13 23:05:20,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:05:20,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [17705424] [2020-10-13 23:05:20,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:05:20,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:20,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:20,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:23,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:23,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 23:05:23,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:05:23,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2664 [2020-10-13 23:05:23,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:23,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 23:05:23,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-13 23:05:23,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 23:05:23,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:05:23,248 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 23:05:23,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:05:23,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:23,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:23,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:23,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:05:23,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:23,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 23:05:23,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:23,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:05:23,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:05:23,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:05:23,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:05:23,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:05:23,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:23,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:23,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:23,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 23:05:23,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:23,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 23:05:23,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:23,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:05:23,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:05:23,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:05:23,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:05:23,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:05:23,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:23,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:23,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:23,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:05:23,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:23,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:05:23,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:23,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:05:23,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:05:23,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:05:23,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:05:23,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:05:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:23,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:23,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:23,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:05:23,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:23,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:05:23,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:23,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:05:23,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:05:23,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:05:23,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:05:23,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 23:05:23,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:23,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:23,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:23,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 23:05:23,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:23,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:05:23,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:23,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:05:23,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:05:23,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:05:23,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:05:23,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 23:05:23,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:23,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:23,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:23,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 23:05:23,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:23,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-13 23:05:23,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:23,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 23:05:23,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 23:05:23,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 23:05:23,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:05:23,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:05:23,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:23,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:23,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:23,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 23:05:23,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:23,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-13 23:05:23,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:23,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 23:05:23,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:05:23,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 23:05:23,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:05:24,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 23:05:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:24,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:24,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:24,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 23:05:24,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:24,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 23:05:24,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:24,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:05:24,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 23:05:24,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:05:24,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:05:24,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:05:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:24,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:24,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:24,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 23:05:24,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:24,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 23:05:24,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:24,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:05:24,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:05:24,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:05:24,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:05:24,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 23:05:24,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:24,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:24,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:24,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:05:24,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:24,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 23:05:24,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:24,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:05:24,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:05:24,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:05:24,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:05:24,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:05:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:24,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:24,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:24,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:05:24,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:24,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:05:24,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:24,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:05:24,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:05:24,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:05:24,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:05:24,169 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-13 23:05:24,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [17705424] [2020-10-13 23:05:24,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:05:24,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-13 23:05:24,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856317839] [2020-10-13 23:05:24,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 23:05:24,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:05:24,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 23:05:24,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2020-10-13 23:05:24,172 INFO L87 Difference]: Start difference. First operand 1426 states and 1698 transitions. Second operand 16 states. [2020-10-13 23:05:24,398 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 23:05:25,371 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-13 23:05:25,571 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 23:05:25,734 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 23:05:25,900 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 23:05:26,087 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 23:05:26,252 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 23:05:26,418 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-13 23:05:26,604 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 23:05:26,876 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-13 23:05:27,165 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-13 23:05:27,395 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 23:05:27,728 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-13 23:05:41,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:05:41,191 INFO L93 Difference]: Finished difference Result 3410 states and 4266 transitions. [2020-10-13 23:05:41,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-13 23:05:41,193 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 80 [2020-10-13 23:05:41,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:05:41,205 INFO L225 Difference]: With dead ends: 3410 [2020-10-13 23:05:41,205 INFO L226 Difference]: Without dead ends: 2008 [2020-10-13 23:05:41,209 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=158, Invalid=834, Unknown=0, NotChecked=0, Total=992 [2020-10-13 23:05:41,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2008 states. [2020-10-13 23:05:41,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2008 to 1427. [2020-10-13 23:05:41,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1427 states. [2020-10-13 23:05:41,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1427 states to 1427 states and 1700 transitions. [2020-10-13 23:05:41,410 INFO L78 Accepts]: Start accepts. Automaton has 1427 states and 1700 transitions. Word has length 80 [2020-10-13 23:05:41,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:05:41,411 INFO L479 AbstractCegarLoop]: Abstraction has 1427 states and 1700 transitions. [2020-10-13 23:05:41,411 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 23:05:41,411 INFO L276 IsEmpty]: Start isEmpty. Operand 1427 states and 1700 transitions. [2020-10-13 23:05:41,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-13 23:05:41,413 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:05:41,413 INFO L422 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:05:41,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 23:05:41,414 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:05:41,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:05:41,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1651504071, now seen corresponding path program 6 times [2020-10-13 23:05:41,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:05:41,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1494225294] [2020-10-13 23:05:41,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:05:41,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:41,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:41,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:43,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:43,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 23:05:43,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:05:43,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1874 [2020-10-13 23:05:43,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:43,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 23:05:43,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-13 23:05:43,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 23:05:43,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:05:43,488 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 23:05:43,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:05:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:43,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:43,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:43,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:05:43,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:43,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 23:05:43,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:43,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:05:43,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:05:43,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:05:43,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:05:43,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:05:43,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:43,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:43,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:43,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 23:05:43,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:43,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 23:05:43,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:43,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:05:43,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:05:43,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:05:43,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:05:43,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:05:43,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:43,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:43,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:43,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:05:43,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:43,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:05:43,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:43,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:05:43,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:05:43,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:05:43,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:05:43,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:05:43,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:43,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:43,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:43,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:05:43,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:43,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 23:05:43,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:43,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:05:43,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:05:43,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:05:43,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:05:43,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 23:05:43,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:43,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:43,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:43,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 23:05:43,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:43,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:05:43,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:43,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:05:43,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:05:43,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:05:43,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:05:43,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 23:05:43,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:43,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:43,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:43,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 23:05:43,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:43,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-13 23:05:43,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:43,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 23:05:43,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 23:05:43,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 23:05:43,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:05:43,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:05:43,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:43,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:43,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:43,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 23:05:43,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:43,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-13 23:05:43,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:43,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 23:05:43,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:05:43,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 23:05:43,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:05:44,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 23:05:44,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:44,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:44,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:44,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 23:05:44,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:44,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 23:05:44,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:44,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:05:44,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 23:05:44,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:05:44,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:05:44,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:05:44,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:44,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:44,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:44,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 23:05:44,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:44,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:05:44,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:44,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:05:44,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:05:44,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:05:44,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:05:44,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 23:05:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:44,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:44,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:44,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:05:44,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:44,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:05:44,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:44,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:05:44,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:05:44,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:05:44,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:05:44,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:05:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:05:44,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:05:44,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:05:44,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:05:44,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:05:44,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:05:44,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:05:44,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:05:44,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:05:44,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:05:44,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:05:44,260 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-13 23:05:44,260 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1494225294] [2020-10-13 23:05:44,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:05:44,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-13 23:05:44,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37566202] [2020-10-13 23:05:44,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-13 23:05:44,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:05:44,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-13 23:05:44,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2020-10-13 23:05:44,264 INFO L87 Difference]: Start difference. First operand 1427 states and 1700 transitions. Second operand 17 states. [2020-10-13 23:05:44,420 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 23:05:45,142 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-13 23:05:45,317 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 23:05:45,486 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 23:05:45,654 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 23:05:45,833 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 23:05:46,004 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 23:05:46,174 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 23:05:46,357 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-13 23:05:46,563 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 23:05:46,825 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-13 23:05:47,076 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-13 23:05:47,308 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 23:05:47,560 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-13 23:06:02,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:06:02,403 INFO L93 Difference]: Finished difference Result 3414 states and 4272 transitions. [2020-10-13 23:06:02,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-13 23:06:02,405 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 81 [2020-10-13 23:06:02,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:06:02,416 INFO L225 Difference]: With dead ends: 3414 [2020-10-13 23:06:02,416 INFO L226 Difference]: Without dead ends: 2011 [2020-10-13 23:06:02,420 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=165, Invalid=957, Unknown=0, NotChecked=0, Total=1122 [2020-10-13 23:06:02,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2011 states. [2020-10-13 23:06:02,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2011 to 1428. [2020-10-13 23:06:02,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2020-10-13 23:06:02,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1702 transitions. [2020-10-13 23:06:02,593 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1702 transitions. Word has length 81 [2020-10-13 23:06:02,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:06:02,593 INFO L479 AbstractCegarLoop]: Abstraction has 1428 states and 1702 transitions. [2020-10-13 23:06:02,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-13 23:06:02,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1702 transitions. [2020-10-13 23:06:02,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-13 23:06:02,595 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:06:02,595 INFO L422 BasicCegarLoop]: trace histogram [11, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:06:02,595 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 23:06:02,595 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:06:02,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:06:02,596 INFO L82 PathProgramCache]: Analyzing trace with hash -270387421, now seen corresponding path program 7 times [2020-10-13 23:06:02,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:06:02,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746251075] [2020-10-13 23:06:02,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:06:02,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:02,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:02,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:04,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:04,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-13 23:06:04,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:06:04,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2207 [2020-10-13 23:06:04,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:04,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 23:06:04,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-13 23:06:04,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 23:06:04,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:04,980 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 23:06:04,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:06:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:04,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:04,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:04,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:06:04,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:04,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 23:06:04,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:04,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:04,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:04,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:04,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:05,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:06:05,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:05,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:05,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:05,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 23:06:05,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:05,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 23:06:05,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:05,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:05,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:05,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:05,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:05,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:06:05,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:05,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:05,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:05,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:06:05,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:05,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:06:05,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:05,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:05,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:05,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:05,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:05,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:06:05,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:05,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:05,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:05,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:06:05,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:05,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:06:05,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:05,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:05,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:05,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:05,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:05,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 23:06:05,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:05,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:05,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:05,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 23:06:05,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:05,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:06:05,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:05,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:05,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:05,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:05,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:05,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 23:06:05,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:05,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:05,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:05,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 23:06:05,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:05,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-13 23:06:05,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:05,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 23:06:05,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 23:06:05,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 23:06:05,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:05,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:06:05,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:05,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:05,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:05,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:06:05,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:05,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-13 23:06:05,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:05,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 23:06:05,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:05,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 23:06:05,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:05,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 23:06:05,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:05,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:05,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:05,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 23:06:05,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:05,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 23:06:05,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:05,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:05,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 23:06:05,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:05,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:05,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:06:05,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:05,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:05,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:05,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 23:06:05,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:05,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:06:05,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:05,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:05,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:05,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:05,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:05,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 23:06:05,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:05,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:05,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:05,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:06:05,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:05,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:06:05,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:05,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:05,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:06:05,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:05,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:05,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:06:05,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:05,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:05,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:05,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:06:05,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:05,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:06:05,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:05,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:05,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:05,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:05,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:05,700 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-13 23:06:05,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746251075] [2020-10-13 23:06:05,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:06:05,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-13 23:06:05,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124772808] [2020-10-13 23:06:05,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 23:06:05,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:06:05,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 23:06:05,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2020-10-13 23:06:05,702 INFO L87 Difference]: Start difference. First operand 1428 states and 1702 transitions. Second operand 18 states. [2020-10-13 23:06:05,860 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 23:06:06,635 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-13 23:06:06,821 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-13 23:06:06,995 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 23:06:07,171 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 23:06:07,346 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 23:06:07,520 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 23:06:07,694 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 23:06:07,891 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 23:06:08,098 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-13 23:06:08,325 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 23:06:08,668 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-13 23:06:09,019 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-13 23:06:09,266 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 23:06:09,590 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-13 23:06:26,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:06:26,265 INFO L93 Difference]: Finished difference Result 3418 states and 4278 transitions. [2020-10-13 23:06:26,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 23:06:26,265 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 82 [2020-10-13 23:06:26,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:06:26,275 INFO L225 Difference]: With dead ends: 3418 [2020-10-13 23:06:26,275 INFO L226 Difference]: Without dead ends: 2014 [2020-10-13 23:06:26,279 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=172, Invalid=1088, Unknown=0, NotChecked=0, Total=1260 [2020-10-13 23:06:26,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2020-10-13 23:06:26,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 1429. [2020-10-13 23:06:26,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1429 states. [2020-10-13 23:06:26,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 1704 transitions. [2020-10-13 23:06:26,469 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 1704 transitions. Word has length 82 [2020-10-13 23:06:26,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:06:26,469 INFO L479 AbstractCegarLoop]: Abstraction has 1429 states and 1704 transitions. [2020-10-13 23:06:26,469 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-13 23:06:26,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 1704 transitions. [2020-10-13 23:06:26,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-13 23:06:26,472 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:06:26,472 INFO L422 BasicCegarLoop]: trace histogram [12, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:06:26,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 23:06:26,472 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:06:26,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:06:26,473 INFO L82 PathProgramCache]: Analyzing trace with hash 280518471, now seen corresponding path program 8 times [2020-10-13 23:06:26,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:06:26,474 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1219359791] [2020-10-13 23:06:26,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:06:26,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:26,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:26,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:26,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 23:06:26,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:26,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-10-13 23:06:26,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:26,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 23:06:26,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 23:06:26,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-13 23:06:26,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:26,905 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 23:06:26,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:06:26,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:26,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:26,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:26,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:06:26,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:26,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 23:06:26,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:26,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:06:26,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:26,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 23:06:26,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:26,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:06:26,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:26,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:26,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:26,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 23:06:26,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:26,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 23:06:26,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:26,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:06:26,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:26,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 23:06:26,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:27,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:06:27,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:27,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:27,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:27,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:06:27,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:27,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:06:27,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:27,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:27,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:27,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:27,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:27,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:06:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:27,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:27,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:27,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:06:27,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:27,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:06:27,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:27,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:27,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:27,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:27,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:27,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 23:06:27,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:27,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:27,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:27,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 23:06:27,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:27,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:06:27,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:27,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:06:27,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:27,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 23:06:27,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:27,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 23:06:27,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:27,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:27,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:27,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 23:06:27,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:27,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 23:06:27,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:27,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:06:27,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:27,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 23:06:27,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:27,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:06:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:27,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:27,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:27,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 23:06:27,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:27,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 23:06:27,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:27,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:27,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:27,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:27,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:27,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 23:06:27,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:27,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:27,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:27,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 23:06:27,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:27,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 23:06:27,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:27,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:06:27,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:27,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 23:06:27,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:27,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:06:27,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:27,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:27,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:27,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 23:06:27,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:27,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:06:27,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:27,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:27,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:27,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:27,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:27,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 23:06:27,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:27,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:27,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:27,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:06:27,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:27,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:06:27,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:27,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:06:27,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:27,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 23:06:27,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:27,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:06:27,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:27,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:27,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:27,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:06:27,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:27,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:06:27,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:27,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:27,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:27,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:27,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:27,167 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2020-10-13 23:06:27,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1219359791] [2020-10-13 23:06:27,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:06:27,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 23:06:27,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885589029] [2020-10-13 23:06:27,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 23:06:27,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:06:27,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 23:06:27,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-13 23:06:27,169 INFO L87 Difference]: Start difference. First operand 1429 states and 1704 transitions. Second operand 8 states. [2020-10-13 23:06:27,345 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 23:06:27,578 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-13 23:06:27,768 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-13 23:06:42,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:06:42,547 INFO L93 Difference]: Finished difference Result 3871 states and 5054 transitions. [2020-10-13 23:06:42,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 23:06:42,548 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-10-13 23:06:42,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:06:42,562 INFO L225 Difference]: With dead ends: 3871 [2020-10-13 23:06:42,562 INFO L226 Difference]: Without dead ends: 3853 [2020-10-13 23:06:42,564 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2020-10-13 23:06:42,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3853 states. [2020-10-13 23:06:42,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3853 to 2795. [2020-10-13 23:06:42,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2795 states. [2020-10-13 23:06:42,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2795 states to 2795 states and 3364 transitions. [2020-10-13 23:06:42,847 INFO L78 Accepts]: Start accepts. Automaton has 2795 states and 3364 transitions. Word has length 83 [2020-10-13 23:06:42,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:06:42,848 INFO L479 AbstractCegarLoop]: Abstraction has 2795 states and 3364 transitions. [2020-10-13 23:06:42,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 23:06:42,848 INFO L276 IsEmpty]: Start isEmpty. Operand 2795 states and 3364 transitions. [2020-10-13 23:06:42,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-13 23:06:42,853 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:06:42,853 INFO L422 BasicCegarLoop]: trace histogram [12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:06:42,854 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 23:06:42,854 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:06:42,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:06:42,854 INFO L82 PathProgramCache]: Analyzing trace with hash -698050544, now seen corresponding path program 1 times [2020-10-13 23:06:42,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:06:42,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2132384098] [2020-10-13 23:06:42,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:06:42,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:42,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:43,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:43,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:45,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:45,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-10-13 23:06:45,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 23:06:45,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3024 [2020-10-13 23:06:45,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:45,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 23:06:45,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-13 23:06:45,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 23:06:45,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:46,111 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 23:06:46,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:06:46,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:46,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:46,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:46,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:06:46,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:46,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 23:06:46,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:46,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:46,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:46,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:46,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:06:46,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:06:46,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:46,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:46,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:46,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 23:06:46,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:46,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 23:06:46,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:46,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:46,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:46,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:46,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:46,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:06:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:46,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:46,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:46,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:06:46,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:46,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:06:46,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:46,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:46,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:46,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:46,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:46,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:06:46,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:46,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:46,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:46,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:06:46,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:46,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:06:46,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:46,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:46,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:46,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:46,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:06:46,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 23:06:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:46,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:46,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:46,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 23:06:46,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:46,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:06:46,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:46,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:46,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:46,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:46,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:46,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 23:06:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:46,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:46,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:46,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 23:06:46,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:46,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 23:06:46,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:46,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:46,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:46,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:46,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:46,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:06:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:46,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:46,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:46,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 23:06:46,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:46,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 23:06:46,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:46,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:46,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:46,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:46,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:46,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 23:06:46,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:46,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:46,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:46,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 23:06:46,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:46,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 23:06:46,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:46,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:46,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:46,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:46,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:46,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:06:46,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:46,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:46,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:46,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 23:06:46,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:46,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 23:06:46,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:46,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:46,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:46,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:46,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:46,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 23:06:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:46,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:46,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:46,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 23:06:46,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:46,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-13 23:06:46,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:46,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 23:06:46,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-13 23:06:46,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 23:06:46,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:46,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 23:06:46,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:46,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:46,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:46,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 23:06:46,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:46,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-13 23:06:46,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:46,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 23:06:46,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-13 23:06:46,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 23:06:46,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:46,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:06:46,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:46,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:46,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:46,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:06:46,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:46,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:06:46,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:46,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:46,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:46,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:46,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:46,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:06:46,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:46,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:46,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:46,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:06:46,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:46,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:06:46,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:46,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:46,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:46,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:46,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:46,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:06:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:46,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:46,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:46,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 23:06:46,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:46,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:06:46,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:46,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:46,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:46,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:46,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:46,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:06:46,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:46,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:46,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:46,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:06:46,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:46,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:06:46,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:46,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:46,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:46,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:46,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:46,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 23:06:46,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:46,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:46,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:46,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 23:06:46,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:46,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 23:06:46,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:46,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 23:06:46,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 23:06:46,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 23:06:46,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:46,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:06:46,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:46,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:46,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:46,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 23:06:46,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:46,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 23:06:46,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:46,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 23:06:46,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 23:06:46,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 23:06:46,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:46,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 23:06:46,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:46,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:47,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:47,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:06:47,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:47,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 23:06:47,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:47,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 23:06:47,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:47,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 23:06:47,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:47,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 23:06:47,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:47,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:47,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:47,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 23:06:47,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:47,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:06:47,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:47,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:47,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 23:06:47,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:47,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:47,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:06:47,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:47,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:47,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:47,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:06:47,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:47,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:06:47,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:47,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:47,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:47,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:47,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:47,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 23:06:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:47,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:47,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:47,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 23:06:47,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:47,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:06:47,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:47,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:47,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 23:06:47,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:47,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:47,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:06:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:47,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:47,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:47,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:06:47,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:47,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:06:47,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:47,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:47,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:47,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:47,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:47,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 23:06:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:47,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:47,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:47,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:06:47,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:47,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:06:47,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:47,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:47,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 23:06:47,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:47,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:47,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-13 23:06:47,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:47,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:47,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:47,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:06:47,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:47,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:06:47,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:47,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:47,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:06:47,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:47,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:47,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:06:47,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:06:47,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:06:47,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:06:47,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:06:47,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:06:47,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:06:47,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:06:47,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:06:47,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:06:47,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:06:47,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:06:47,155 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2020-10-13 23:06:47,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2132384098] [2020-10-13 23:06:47,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:06:47,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 23:06:47,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353366916] [2020-10-13 23:06:47,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 23:06:47,156 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:06:47,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 23:06:47,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-13 23:06:47,156 INFO L87 Difference]: Start difference. First operand 2795 states and 3364 transitions. Second operand 13 states. [2020-10-13 23:06:47,315 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 23:06:48,483 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 148