/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1201.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 04:46:31,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 04:46:31,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 04:46:31,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 04:46:31,044 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 04:46:31,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 04:46:31,047 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 04:46:31,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 04:46:31,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 04:46:31,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 04:46:31,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 04:46:31,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 04:46:31,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 04:46:31,069 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 04:46:31,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 04:46:31,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 04:46:31,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 04:46:31,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 04:46:31,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 04:46:31,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 04:46:31,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 04:46:31,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 04:46:31,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 04:46:31,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 04:46:31,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 04:46:31,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 04:46:31,146 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 04:46:31,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 04:46:31,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 04:46:31,156 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 04:46:31,156 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 04:46:31,157 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 04:46:31,164 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 04:46:31,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 04:46:31,167 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 04:46:31,167 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 04:46:31,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 04:46:31,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 04:46:31,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 04:46:31,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 04:46:31,172 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 04:46:31,174 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 [2020-10-28 04:46:31,205 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 04:46:31,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 04:46:31,209 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 04:46:31,209 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 04:46:31,209 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 04:46:31,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 04:46:31,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 04:46:31,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 04:46:31,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 04:46:31,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 04:46:31,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 04:46:31,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 04:46:31,213 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 04:46:31,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 04:46:31,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 04:46:31,214 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 04:46:31,215 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 04:46:31,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 04:46:31,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 04:46:31,217 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 04:46:31,217 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 04:46:31,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 04:46:31,218 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 04:46:31,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 04:46:31,219 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 04:46:31,219 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 04:46:31,220 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-28 04:46:31,220 INFO L138 SettingsManager]: * To the following directory=dump/ WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-28 04:46:31,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 04:46:31,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 04:46:31,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 04:46:31,762 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 04:46:31,763 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 04:46:31,765 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1201.ko-entry_point.cil.out.i [2020-10-28 04:46:31,859 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dd7657c62/9890dbf186b44a9087c4f0780f852bd5/FLAGc15250016 [2020-10-28 04:46:32,832 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 04:46:32,833 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1201.ko-entry_point.cil.out.i [2020-10-28 04:46:32,889 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dd7657c62/9890dbf186b44a9087c4f0780f852bd5/FLAGc15250016 [2020-10-28 04:46:33,296 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dd7657c62/9890dbf186b44a9087c4f0780f852bd5 [2020-10-28 04:46:33,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 04:46:33,306 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 04:46:33,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 04:46:33,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 04:46:33,314 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 04:46:33,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:46:33" (1/1) ... [2020-10-28 04:46:33,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@597b5d99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:46:33, skipping insertion in model container [2020-10-28 04:46:33,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:46:33" (1/1) ... [2020-10-28 04:46:33,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 04:46:33,450 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 04:46:34,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 04:46:34,744 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 04:46:35,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 04:46:35,179 INFO L208 MainTranslator]: Completed translation [2020-10-28 04:46:35,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:46:35 WrapperNode [2020-10-28 04:46:35,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 04:46:35,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 04:46:35,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 04:46:35,181 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 04:46:35,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:46:35" (1/1) ... [2020-10-28 04:46:35,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:46:35" (1/1) ... [2020-10-28 04:46:35,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:46:35" (1/1) ... [2020-10-28 04:46:35,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:46:35" (1/1) ... [2020-10-28 04:46:35,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:46:35" (1/1) ... [2020-10-28 04:46:35,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:46:35" (1/1) ... [2020-10-28 04:46:35,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:46:35" (1/1) ... [2020-10-28 04:46:35,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 04:46:35,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 04:46:35,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 04:46:35,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 04:46:35,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:46:35" (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 [2020-10-28 04:46:35,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 04:46:35,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 04:46:35,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2020-10-28 04:46:35,576 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 04:46:35,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2020-10-28 04:46:35,576 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2020-10-28 04:46:35,576 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 04:46:35,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-28 04:46:35,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-28 04:46:35,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-28 04:46:35,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-28 04:46:35,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-28 04:46:35,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-28 04:46:35,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-28 04:46:35,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-28 04:46:35,578 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-10-28 04:46:35,578 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2020-10-28 04:46:35,579 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_rfc1201_init [2020-10-28 04:46:35,579 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_rfc1201_exit [2020-10-28 04:46:35,579 INFO L138 BoogieDeclarations]: Found implementation of procedure type_trans [2020-10-28 04:46:35,579 INFO L138 BoogieDeclarations]: Found implementation of procedure rx [2020-10-28 04:46:35,579 INFO L138 BoogieDeclarations]: Found implementation of procedure build_header [2020-10-28 04:46:35,579 INFO L138 BoogieDeclarations]: Found implementation of procedure load_pkt [2020-10-28 04:46:35,580 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_tx [2020-10-28 04:46:35,580 INFO L138 BoogieDeclarations]: Found implementation of procedure continue_tx [2020-10-28 04:46:35,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_ArcProto_1 [2020-10-28 04:46:35,580 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 04:46:35,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-10-28 04:46:35,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-10-28 04:46:35,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-10-28 04:46:35,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-10-28 04:46:35,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-10-28 04:46:35,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_12 [2020-10-28 04:46:35,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2020-10-28 04:46:35,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_15 [2020-10-28 04:46:35,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-10-28 04:46:35,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-10-28 04:46:35,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-10-28 04:46:35,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-10-28 04:46:35,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-10-28 04:46:35,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-28 04:46:35,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-28 04:46:35,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-28 04:46:35,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-28 04:46:35,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-10-28 04:46:35,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-28 04:46:35,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-10-28 04:46:35,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-10-28 04:46:35,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-10-28 04:46:35,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-10-28 04:46:35,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-10-28 04:46:35,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-28 04:46:35,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_irq [2020-10-28 04:46:35,585 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_unregister_proto [2020-10-28 04:46:35,585 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-28 04:46:35,586 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-10-28 04:46:35,586 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-10-28 04:46:35,586 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-10-28 04:46:35,586 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-28 04:46:35,586 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-28 04:46:35,587 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-28 04:46:35,587 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-28 04:46:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 04:46:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 04:46:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-28 04:46:35,588 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-28 04:46:35,588 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 04:46:35,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 04:46:35,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-28 04:46:35,588 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2020-10-28 04:46:35,588 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-28 04:46:35,589 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-28 04:46:35,589 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-28 04:46:35,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-10-28 04:46:35,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-10-28 04:46:35,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-10-28 04:46:35,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-10-28 04:46:35,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-10-28 04:46:35,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_12 [2020-10-28 04:46:35,590 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-10-28 04:46:35,590 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-10-28 04:46:35,590 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-10-28 04:46:35,591 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2020-10-28 04:46:35,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 04:46:35,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 04:46:35,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-10-28 04:46:35,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-10-28 04:46:35,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-10-28 04:46:35,592 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 04:46:35,592 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-28 04:46:35,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 04:46:35,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2020-10-28 04:46:35,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-28 04:46:35,592 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 04:46:35,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-28 04:46:35,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 04:46:35,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-28 04:46:35,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-28 04:46:35,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-28 04:46:35,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-28 04:46:35,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-28 04:46:35,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-28 04:46:35,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-28 04:46:35,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_ArcProto_1 [2020-10-28 04:46:35,594 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-10-28 04:46:35,594 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_irq [2020-10-28 04:46:35,594 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2020-10-28 04:46:35,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2020-10-28 04:46:35,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_15 [2020-10-28 04:46:35,595 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_unregister_proto [2020-10-28 04:46:35,595 INFO L130 BoogieDeclarations]: Found specification of procedure type_trans [2020-10-28 04:46:35,595 INFO L130 BoogieDeclarations]: Found specification of procedure rx [2020-10-28 04:46:35,596 INFO L130 BoogieDeclarations]: Found specification of procedure build_header [2020-10-28 04:46:35,596 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_tx [2020-10-28 04:46:35,596 INFO L130 BoogieDeclarations]: Found specification of procedure continue_tx [2020-10-28 04:46:35,596 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_rfc1201_init [2020-10-28 04:46:35,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 04:46:35,596 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_rfc1201_exit [2020-10-28 04:46:35,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 04:46:35,597 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2020-10-28 04:46:35,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-28 04:46:35,597 INFO L130 BoogieDeclarations]: Found specification of procedure load_pkt [2020-10-28 04:46:35,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 04:46:35,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-28 04:46:35,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-28 04:46:35,598 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 04:46:35,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-28 04:46:35,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-10-28 04:46:35,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-10-28 04:46:35,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-10-28 04:46:35,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-10-28 04:46:35,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-10-28 04:46:35,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-28 04:46:35,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-28 04:46:35,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-28 04:46:35,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-28 04:46:35,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-10-28 04:46:35,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-10-28 04:46:35,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-10-28 04:46:35,600 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 04:46:35,600 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-28 04:46:35,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 04:46:35,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 04:46:35,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-28 04:46:35,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 04:46:35,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-28 04:46:35,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-28 04:46:35,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-28 04:46:35,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-28 04:46:36,485 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-28 04:46:52,388 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 04:46:52,388 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-28 04:46:52,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:46:52 BoogieIcfgContainer [2020-10-28 04:46:52,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 04:46:52,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 04:46:52,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 04:46:52,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 04:46:52,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 04:46:33" (1/3) ... [2020-10-28 04:46:52,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@121412e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:46:52, skipping insertion in model container [2020-10-28 04:46:52,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:46:35" (2/3) ... [2020-10-28 04:46:52,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@121412e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:46:52, skipping insertion in model container [2020-10-28 04:46:52,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:46:52" (3/3) ... [2020-10-28 04:46:52,408 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1201.ko-entry_point.cil.out.i [2020-10-28 04:46:52,421 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 04:46:52,434 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 04:46:52,449 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 04:46:52,493 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 04:46:52,494 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 04:46:52,494 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 04:46:52,494 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 04:46:52,494 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 04:46:52,494 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 04:46:52,495 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 04:46:52,495 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 04:46:52,533 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states. [2020-10-28 04:46:52,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-28 04:46:52,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 04:46:52,546 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 04:46:52,546 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 04:46:52,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 04:46:52,553 INFO L82 PathProgramCache]: Analyzing trace with hash 362771650, now seen corresponding path program 1 times [2020-10-28 04:46:52,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 04:46:52,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1853225650] [2020-10-28 04:46:52,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 04:46:52,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:46:53,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:46:53,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:46:53,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:46:57,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:46:57,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 04:46:57,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 04:46:57,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4915 [2020-10-28 04:46:57,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:46:57,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 04:46:57,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-28 04:46:57,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 04:46:57,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 04:46:58,442 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-28 04:46:58,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 04:46:58,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:46:58,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:46:58,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:46:58,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 04:46:58,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:46:58,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-28 04:46:58,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:46:58,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:46:58,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:46:58,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:46:58,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 04:46:58,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 04:46:58,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:46:58,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:46:58,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:46:58,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 04:46:58,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:46:58,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 04:46:58,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:46:58,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:46:58,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:46:58,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:46:58,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:46:58,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 04:46:58,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:46:58,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:46:58,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:46:58,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 04:46:58,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:46:58,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 04:46:58,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:46:58,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:46:58,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:46:58,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:46:58,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:46:58,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 04:46:58,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:46:58,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:46:58,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:46:58,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 04:46:58,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:46:58,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 04:46:58,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:46:58,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:46:58,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:46:58,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:46:58,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:46:58,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 04:46:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:46:58,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:46:58,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:46:58,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:46:58,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 04:46:58,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 04:46:58,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 04:46:58,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:46:58,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 04:46:58,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 04:46:58,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 04:46:58,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 04:46:58,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-28 04:46:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:46:58,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:46:58,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:46:58,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 04:46:58,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:46:58,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 04:46:58,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:46:58,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:46:58,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-28 04:46:58,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:46:58,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 04:46:58,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 04:46:58,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:46:58,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:46:58,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:46:58,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 04:46:58,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:46:58,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 04:46:58,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:46:58,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:46:58,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:46:58,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:46:58,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 04:46:58,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 04:46:58,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:46:58,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:46:58,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:46:58,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 04:46:58,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:46:58,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 04:46:58,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:46:58,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:46:58,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 04:46:58,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:46:58,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:46:58,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 04:46:58,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1853225650] [2020-10-28 04:46:58,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 04:46:58,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 04:46:58,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396695867] [2020-10-28 04:46:58,880 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 04:46:58,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 04:46:58,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 04:46:58,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-28 04:46:58,907 INFO L87 Difference]: Start difference. First operand 413 states. Second operand 9 states. [2020-10-28 04:46:59,436 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-28 04:47:00,412 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-28 04:47:00,963 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-28 04:47:01,664 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 249 [2020-10-28 04:47:02,100 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 251 [2020-10-28 04:48:12,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 04:48:12,886 INFO L93 Difference]: Finished difference Result 985 states and 1366 transitions. [2020-10-28 04:48:12,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 04:48:12,889 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2020-10-28 04:48:12,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 04:48:12,917 INFO L225 Difference]: With dead ends: 985 [2020-10-28 04:48:12,917 INFO L226 Difference]: Without dead ends: 582 [2020-10-28 04:48:12,932 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2020-10-28 04:48:12,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2020-10-28 04:48:13,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 497. [2020-10-28 04:48:13,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2020-10-28 04:48:13,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 659 transitions. [2020-10-28 04:48:13,140 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 659 transitions. Word has length 51 [2020-10-28 04:48:13,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 04:48:13,141 INFO L481 AbstractCegarLoop]: Abstraction has 497 states and 659 transitions. [2020-10-28 04:48:13,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 04:48:13,141 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 659 transitions. [2020-10-28 04:48:13,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-28 04:48:13,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 04:48:13,146 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 04:48:13,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 04:48:13,147 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 04:48:13,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 04:48:13,147 INFO L82 PathProgramCache]: Analyzing trace with hash -930392516, now seen corresponding path program 1 times [2020-10-28 04:48:13,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 04:48:13,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [282276400] [2020-10-28 04:48:13,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 04:48:13,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:48:13,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:48:13,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:48:13,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:48:17,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:48:17,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-28 04:48:17,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 04:48:17,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4080 [2020-10-28 04:48:17,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:48:17,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 04:48:17,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-28 04:48:17,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 04:48:17,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:48:17,853 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-28 04:48:17,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 04:48:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:48:17,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:48:17,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:48:17,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 04:48:17,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:48:17,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 04:48:17,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:48:17,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:48:17,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:48:17,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:48:17,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:48:17,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 04:48:17,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:48:17,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:48:17,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:48:17,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 04:48:17,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:48:17,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 04:48:17,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:48:17,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:48:17,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:48:17,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:48:17,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:48:17,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 04:48:17,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:48:17,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:48:17,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:48:17,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 04:48:17,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:48:17,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 04:48:17,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:48:17,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:48:17,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:48:17,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:48:17,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:48:18,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 04:48:18,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:48:18,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:48:18,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:48:18,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 04:48:18,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:48:18,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 04:48:18,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:48:18,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:48:18,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:48:18,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:48:18,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 04:48:18,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 04:48:18,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:48:18,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:48:18,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:48:18,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 04:48:18,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:48:18,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 04:48:18,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:48:18,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:48:18,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:48:18,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:48:18,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 04:48:18,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-28 04:48:18,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:48:18,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:48:18,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:48:18,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 04:48:18,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:48:18,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 04:48:18,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:48:18,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 04:48:18,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:48:18,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 04:48:18,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:48:18,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 04:48:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:48:18,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:48:18,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:48:18,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 04:48:18,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:48:18,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 04:48:18,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:48:18,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:48:18,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 04:48:18,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:48:18,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:48:18,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 04:48:18,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [282276400] [2020-10-28 04:48:18,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 04:48:18,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 04:48:18,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336868538] [2020-10-28 04:48:18,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 04:48:18,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 04:48:18,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 04:48:18,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-28 04:48:18,206 INFO L87 Difference]: Start difference. First operand 497 states and 659 transitions. Second operand 10 states. [2020-10-28 04:48:18,665 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-28 04:48:19,843 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-28 04:48:20,468 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-28 04:49:06,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 04:49:06,769 INFO L93 Difference]: Finished difference Result 1088 states and 1437 transitions. [2020-10-28 04:49:06,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 04:49:06,770 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 54 [2020-10-28 04:49:06,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 04:49:06,776 INFO L225 Difference]: With dead ends: 1088 [2020-10-28 04:49:06,776 INFO L226 Difference]: Without dead ends: 624 [2020-10-28 04:49:06,779 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2020-10-28 04:49:06,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2020-10-28 04:49:06,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 537. [2020-10-28 04:49:06,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-28 04:49:06,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 700 transitions. [2020-10-28 04:49:06,871 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 700 transitions. Word has length 54 [2020-10-28 04:49:06,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 04:49:06,871 INFO L481 AbstractCegarLoop]: Abstraction has 537 states and 700 transitions. [2020-10-28 04:49:06,871 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 04:49:06,871 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 700 transitions. [2020-10-28 04:49:06,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-28 04:49:06,877 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 04:49:06,877 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-10-28 04:49:06,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 04:49:06,878 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 04:49:06,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 04:49:06,878 INFO L82 PathProgramCache]: Analyzing trace with hash -152194765, now seen corresponding path program 1 times [2020-10-28 04:49:06,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 04:49:06,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1960065517] [2020-10-28 04:49:06,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 04:49:06,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:49:06,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:49:07,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:49:07,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 04:49:07,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:49:07,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 699 [2020-10-28 04:49:07,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:49:07,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 04:49:07,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-28 04:49:07,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-28 04:49:07,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:49:08,082 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-28 04:49:08,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 04:49:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:49:08,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:49:08,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:49:08,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 04:49:08,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:49:08,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-28 04:49:08,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:49:08,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:49:08,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:49:08,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:49:08,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:49:08,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 04:49:08,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:49:08,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:49:08,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:49:08,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 04:49:08,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:49:08,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 04:49:08,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:49:08,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:49:08,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:49:08,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:49:08,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:49:08,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 04:49:08,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:49:08,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:49:08,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:49:08,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 04:49:08,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:49:08,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 04:49:08,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:49:08,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 04:49:08,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:49:08,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 04:49:08,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:49:08,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 04:49:08,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:49:08,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:49:08,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:49:08,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 04:49:08,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:49:08,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 04:49:08,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:49:08,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 04:49:08,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:49:08,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 04:49:08,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:49:08,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 04:49:08,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:49:08,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:49:08,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:49:08,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 04:49:08,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:49:08,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 04:49:08,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:49:08,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 04:49:08,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:49:08,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 04:49:08,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:49:08,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-28 04:49:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:49:08,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:49:08,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:49:08,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 04:49:08,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:49:08,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 04:49:08,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:49:08,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 04:49:08,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:49:08,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 04:49:08,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:49:08,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 04:49:08,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:49:08,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:49:08,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:49:08,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-28 04:49:08,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:49:08,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 04:49:08,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:49:08,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 04:49:08,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:49:08,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 04:49:08,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:49:08,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 04:49:08,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:49:08,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:49:08,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:49:08,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 04:49:08,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:49:08,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 04:49:08,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:49:08,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:49:08,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:49:08,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:49:08,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:49:08,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 04:49:08,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:49:08,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:49:08,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:49:08,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 04:49:08,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:49:08,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 04:49:08,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:49:08,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:49:08,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:49:08,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:49:08,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:49:08,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 04:49:08,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:49:08,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:49:08,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:49:08,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 04:49:08,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:49:08,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 04:49:08,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:49:08,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 04:49:08,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:49:08,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 04:49:08,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:49:08,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 04:49:08,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:49:08,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:49:08,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:49:08,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 04:49:08,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:49:08,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 04:49:08,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:49:08,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:49:08,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:49:08,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:49:08,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 04:49:08,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-28 04:49:08,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:49:08,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:49:08,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:49:08,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 04:49:08,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:49:08,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 04:49:08,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:49:08,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 04:49:08,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:49:08,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 04:49:08,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:49:08,551 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-28 04:49:08,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1960065517] [2020-10-28 04:49:08,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 04:49:08,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-28 04:49:08,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026119299] [2020-10-28 04:49:08,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 04:49:08,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 04:49:08,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 04:49:08,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-28 04:49:08,554 INFO L87 Difference]: Start difference. First operand 537 states and 700 transitions. Second operand 12 states. [2020-10-28 04:49:08,959 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-28 04:49:10,181 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-28 04:49:10,793 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-28 04:49:48,716 WARN L193 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 255 [2020-10-28 04:49:49,183 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-28 04:49:49,613 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-28 04:49:53,631 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2020-10-28 04:50:01,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 04:50:01,286 INFO L93 Difference]: Finished difference Result 858 states and 1109 transitions. [2020-10-28 04:50:01,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 04:50:01,287 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 84 [2020-10-28 04:50:01,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 04:50:01,297 INFO L225 Difference]: With dead ends: 858 [2020-10-28 04:50:01,297 INFO L226 Difference]: Without dead ends: 837 [2020-10-28 04:50:01,300 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=170, Invalid=430, Unknown=0, NotChecked=0, Total=600 [2020-10-28 04:50:01,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2020-10-28 04:50:01,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 727. [2020-10-28 04:50:01,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 727 states. [2020-10-28 04:50:01,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 950 transitions. [2020-10-28 04:50:01,447 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 950 transitions. Word has length 84 [2020-10-28 04:50:01,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 04:50:01,448 INFO L481 AbstractCegarLoop]: Abstraction has 727 states and 950 transitions. [2020-10-28 04:50:01,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 04:50:01,448 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 950 transitions. [2020-10-28 04:50:01,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-28 04:50:01,454 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 04:50:01,454 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 04:50:01,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 04:50:01,455 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 04:50:01,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 04:50:01,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1547088258, now seen corresponding path program 1 times [2020-10-28 04:50:01,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 04:50:01,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [616945831] [2020-10-28 04:50:01,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 04:50:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:50:01,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:50:01,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:50:01,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:50:03,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:50:06,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:50:06,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-28 04:50:06,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 04:50:06,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-28 04:50:06,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:50:06,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 04:50:06,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-28 04:50:06,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 04:50:06,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:50:06,939 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-28 04:50:06,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 04:50:06,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:50:06,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:50:07,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:50:07,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 04:50:07,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:50:07,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-28 04:50:07,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:50:07,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:50:07,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:50:07,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:50:07,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:50:07,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 04:50:07,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:50:07,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:50:07,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:50:07,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 04:50:07,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:50:07,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 04:50:07,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:50:07,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:50:07,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:50:07,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:50:07,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 04:50:07,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 04:50:07,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:50:07,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:50:07,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:50:07,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 04:50:07,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:50:07,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 04:50:07,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:50:07,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:50:07,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:50:07,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:50:07,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:50:07,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 04:50:07,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:50:07,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:50:07,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:50:07,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 04:50:07,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:50:07,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 04:50:07,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:50:07,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:50:07,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:50:07,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:50:07,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:50:07,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 04:50:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:50:07,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:50:07,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:50:07,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 04:50:07,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:50:07,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 04:50:07,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:50:07,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:50:07,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:50:07,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:50:07,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:50:07,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-28 04:50:07,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:50:07,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:50:07,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:50:07,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-28 04:50:07,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:50:07,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-28 04:50:07,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:50:07,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 04:50:07,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-28 04:50:07,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 04:50:07,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:50:07,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 04:50:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:50:07,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:50:07,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:50:07,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 04:50:07,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:50:07,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 04:50:07,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:50:07,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:50:07,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:50:07,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:50:07,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:50:07,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 04:50:07,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:50:07,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:50:07,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:50:07,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 04:50:07,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:50:07,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 04:50:07,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:50:07,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:50:07,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 04:50:07,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:50:07,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:50:07,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 04:50:07,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:50:07,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:50:07,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:50:07,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-28 04:50:07,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:50:07,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 04:50:07,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:50:07,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:50:07,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-28 04:50:07,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:50:07,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:50:07,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 04:50:07,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:50:07,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:50:07,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:50:07,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 04:50:07,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:50:07,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 04:50:07,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:50:07,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:50:07,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:50:07,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:50:07,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:50:07,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 04:50:07,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:50:07,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:50:07,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:50:07,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 04:50:07,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:50:07,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 04:50:07,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:50:07,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:50:07,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:50:07,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:50:07,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:50:07,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-28 04:50:07,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:50:07,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:50:07,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:50:07,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 04:50:07,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:50:07,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 04:50:07,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:50:07,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:50:07,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-28 04:50:07,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:50:07,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:50:07,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 04:50:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:50:07,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:50:07,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:50:07,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 04:50:07,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:50:07,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 04:50:07,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:50:07,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:50:07,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 04:50:07,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:50:07,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:50:07,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-28 04:50:07,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 04:50:07,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 04:50:07,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 04:50:07,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 04:50:07,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 04:50:07,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 04:50:07,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 04:50:07,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 04:50:07,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 04:50:07,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 04:50:07,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 04:50:07,559 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-28 04:50:07,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [616945831] [2020-10-28 04:50:07,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 04:50:07,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 04:50:07,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129102595] [2020-10-28 04:50:07,567 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 04:50:07,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 04:50:07,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 04:50:07,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-28 04:50:07,568 INFO L87 Difference]: Start difference. First operand 727 states and 950 transitions. Second operand 10 states. [2020-10-28 04:50:07,952 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 250