/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-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 0.1.25-adbd35c [2020-10-13 00:45:34,155 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 00:45:34,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 00:45:34,180 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 00:45:34,181 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 00:45:34,182 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 00:45:34,183 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 00:45:34,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 00:45:34,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 00:45:34,187 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 00:45:34,188 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 00:45:34,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 00:45:34,189 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 00:45:34,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 00:45:34,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 00:45:34,192 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 00:45:34,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 00:45:34,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 00:45:34,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 00:45:34,198 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 00:45:34,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 00:45:34,200 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 00:45:34,201 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 00:45:34,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 00:45:34,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 00:45:34,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 00:45:34,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 00:45:34,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 00:45:34,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 00:45:34,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 00:45:34,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 00:45:34,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 00:45:34,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 00:45:34,210 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 00:45:34,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 00:45:34,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 00:45:34,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 00:45:34,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 00:45:34,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 00:45:34,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 00:45:34,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 00:45:34,214 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-13 00:45:34,237 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 00:45:34,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 00:45:34,239 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 00:45:34,239 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 00:45:34,239 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 00:45:34,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 00:45:34,240 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 00:45:34,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 00:45:34,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 00:45:34,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 00:45:34,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 00:45:34,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 00:45:34,241 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 00:45:34,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 00:45:34,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 00:45:34,241 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 00:45:34,241 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 00:45:34,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 00:45:34,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 00:45:34,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 00:45:34,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 00:45:34,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 00:45:34,243 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 00:45:34,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 00:45:34,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 00:45:34,243 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 00:45:34,243 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 00:45:34,244 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 00:45:34,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 00:45:34,574 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 00:45:34,577 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 00:45:34,578 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 00:45:34,579 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 00:45:34,580 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1201.ko-entry_point.cil.out.i [2020-10-13 00:45:34,661 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d474d9974/d047fd73ee30487193ba7476bd533cc7/FLAGd53bf27af [2020-10-13 00:45:35,492 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 00:45:35,492 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1201.ko-entry_point.cil.out.i [2020-10-13 00:45:35,540 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d474d9974/d047fd73ee30487193ba7476bd533cc7/FLAGd53bf27af [2020-10-13 00:45:36,025 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d474d9974/d047fd73ee30487193ba7476bd533cc7 [2020-10-13 00:45:36,035 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 00:45:36,036 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 00:45:36,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 00:45:36,039 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 00:45:36,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 00:45:36,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:45:36" (1/1) ... [2020-10-13 00:45:36,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e8d896d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:36, skipping insertion in model container [2020-10-13 00:45:36,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:45:36" (1/1) ... [2020-10-13 00:45:36,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 00:45:36,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 00:45:37,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 00:45:37,252 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 00:45:37,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 00:45:37,614 INFO L208 MainTranslator]: Completed translation [2020-10-13 00:45:37,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:37 WrapperNode [2020-10-13 00:45:37,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 00:45:37,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 00:45:37,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 00:45:37,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 00:45:37,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:37" (1/1) ... [2020-10-13 00:45:37,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:37" (1/1) ... [2020-10-13 00:45:37,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:37" (1/1) ... [2020-10-13 00:45:37,692 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:37" (1/1) ... [2020-10-13 00:45:37,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:37" (1/1) ... [2020-10-13 00:45:37,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:37" (1/1) ... [2020-10-13 00:45:37,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:37" (1/1) ... [2020-10-13 00:45:37,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 00:45:37,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 00:45:37,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 00:45:37,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 00:45:37,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:37" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 00:45:37,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 00:45:37,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 00:45:37,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2020-10-13 00:45:37,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2020-10-13 00:45:37,995 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2020-10-13 00:45:37,995 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 00:45:37,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 00:45:37,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-13 00:45:37,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-13 00:45:38,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-13 00:45:38,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 00:45:38,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-13 00:45:38,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-13 00:45:38,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-13 00:45:38,002 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-10-13 00:45:38,002 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2020-10-13 00:45:38,002 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_rfc1201_init [2020-10-13 00:45:38,008 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_rfc1201_exit [2020-10-13 00:45:38,008 INFO L138 BoogieDeclarations]: Found implementation of procedure type_trans [2020-10-13 00:45:38,009 INFO L138 BoogieDeclarations]: Found implementation of procedure rx [2020-10-13 00:45:38,009 INFO L138 BoogieDeclarations]: Found implementation of procedure build_header [2020-10-13 00:45:38,009 INFO L138 BoogieDeclarations]: Found implementation of procedure load_pkt [2020-10-13 00:45:38,010 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_tx [2020-10-13 00:45:38,010 INFO L138 BoogieDeclarations]: Found implementation of procedure continue_tx [2020-10-13 00:45:38,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_ArcProto_1 [2020-10-13 00:45:38,012 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 00:45:38,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-10-13 00:45:38,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-10-13 00:45:38,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-10-13 00:45:38,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-10-13 00:45:38,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-10-13 00:45:38,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_12 [2020-10-13 00:45:38,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2020-10-13 00:45:38,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_15 [2020-10-13 00:45:38,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-10-13 00:45:38,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-10-13 00:45:38,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-10-13 00:45:38,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-10-13 00:45:38,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-10-13 00:45:38,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-13 00:45:38,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-13 00:45:38,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-13 00:45:38,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-13 00:45:38,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-10-13 00:45:38,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 00:45:38,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-10-13 00:45:38,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-10-13 00:45:38,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-10-13 00:45:38,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-10-13 00:45:38,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-10-13 00:45:38,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 00:45:38,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_irq [2020-10-13 00:45:38,018 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_unregister_proto [2020-10-13 00:45:38,019 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-13 00:45:38,019 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-10-13 00:45:38,019 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-10-13 00:45:38,020 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-10-13 00:45:38,020 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 00:45:38,020 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-13 00:45:38,020 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-13 00:45:38,020 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-13 00:45:38,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 00:45:38,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-13 00:45:38,021 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2020-10-13 00:45:38,021 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-13 00:45:38,021 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-13 00:45:38,022 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-13 00:45:38,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-10-13 00:45:38,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-10-13 00:45:38,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-10-13 00:45:38,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-10-13 00:45:38,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-10-13 00:45:38,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_12 [2020-10-13 00:45:38,025 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-10-13 00:45:38,026 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-10-13 00:45:38,026 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-10-13 00:45:38,026 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2020-10-13 00:45:38,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 00:45:38,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 00:45:38,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-10-13 00:45:38,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-10-13 00:45:38,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-10-13 00:45:38,028 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 00:45:38,029 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 00:45:38,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 00:45:38,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2020-10-13 00:45:38,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 00:45:38,029 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 00:45:38,030 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 00:45:38,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 00:45:38,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 00:45:38,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-13 00:45:38,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-13 00:45:38,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-13 00:45:38,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-13 00:45:38,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 00:45:38,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-13 00:45:38,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-13 00:45:38,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_ArcProto_1 [2020-10-13 00:45:38,032 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-10-13 00:45:38,032 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_irq [2020-10-13 00:45:38,033 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2020-10-13 00:45:38,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2020-10-13 00:45:38,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_15 [2020-10-13 00:45:38,033 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_unregister_proto [2020-10-13 00:45:38,033 INFO L130 BoogieDeclarations]: Found specification of procedure type_trans [2020-10-13 00:45:38,034 INFO L130 BoogieDeclarations]: Found specification of procedure rx [2020-10-13 00:45:38,034 INFO L130 BoogieDeclarations]: Found specification of procedure build_header [2020-10-13 00:45:38,034 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_tx [2020-10-13 00:45:38,034 INFO L130 BoogieDeclarations]: Found specification of procedure continue_tx [2020-10-13 00:45:38,035 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_rfc1201_init [2020-10-13 00:45:38,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 00:45:38,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 00:45:38,035 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_rfc1201_exit [2020-10-13 00:45:38,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 00:45:38,036 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2020-10-13 00:45:38,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-13 00:45:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure load_pkt [2020-10-13 00:45:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 00:45:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 00:45:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 00:45:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 00:45:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-13 00:45:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-10-13 00:45:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-10-13 00:45:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-10-13 00:45:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-10-13 00:45:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-10-13 00:45:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-13 00:45:38,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-13 00:45:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-13 00:45:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-13 00:45:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-10-13 00:45:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-10-13 00:45:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-10-13 00:45:38,048 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 00:45:38,048 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 00:45:38,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 00:45:38,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 00:45:38,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 00:45:38,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 00:45:38,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-13 00:45:38,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-13 00:45:38,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-13 00:45:38,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-13 00:45:39,092 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-13 00:45:53,993 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 00:45:53,993 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-13 00:45:54,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:45:54 BoogieIcfgContainer [2020-10-13 00:45:54,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 00:45:54,002 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 00:45:54,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 00:45:54,006 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 00:45:54,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:45:36" (1/3) ... [2020-10-13 00:45:54,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad4813c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:45:54, skipping insertion in model container [2020-10-13 00:45:54,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:37" (2/3) ... [2020-10-13 00:45:54,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad4813c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:45:54, skipping insertion in model container [2020-10-13 00:45:54,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:45:54" (3/3) ... [2020-10-13 00:45:54,010 INFO L109 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 [2020-10-13 00:45:54,022 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 00:45:54,031 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 00:45:54,046 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 00:45:54,076 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 00:45:54,076 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 00:45:54,077 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 00:45:54,077 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 00:45:54,077 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 00:45:54,077 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 00:45:54,077 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 00:45:54,077 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 00:45:54,105 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-13 00:45:54,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-13 00:45:54,116 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 00:45:54,118 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] [2020-10-13 00:45:54,118 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 00:45:54,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 00:45:54,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1994322516, now seen corresponding path program 1 times [2020-10-13 00:45:54,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 00:45:54,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1498771325] [2020-10-13 00:45:54,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 00:45:54,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:54,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:54,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:55,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:57,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:57,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 00:45:57,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 00:45:57,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3170 [2020-10-13 00:45:57,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:57,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 00:45:57,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-13 00:45:57,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-13 00:45:57,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 00:45:58,371 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-10-13 00:45:58,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:45:58,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:58,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:58,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:58,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:45:58,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:58,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-13 00:45:58,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:58,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:45:58,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:45:58,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:45:58,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:58,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 00:45:58,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:58,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:58,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:58,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:45:58,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:58,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 00:45:58,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:58,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:45:58,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:45:58,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:45:58,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:58,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 00:45:58,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:58,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:58,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:58,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 00:45:58,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:58,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 00:45:58,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:58,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:45:58,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:45:58,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 00:45:58,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:58,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:45:58,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:58,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:58,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:58,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:45:58,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:58,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 00:45:58,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:58,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:45:58,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:45:58,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 00:45:58,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:45:58,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 00:45:58,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:58,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:58,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:58,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:58,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:45:58,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 00:45:58,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 00:45:58,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:58,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 00:45:58,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 00:45:58,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 00:45:58,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:58,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 00:45:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:58,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:58,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:58,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 00:45:58,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:58,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 00:45:58,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:58,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:45:58,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:45:58,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 00:45:58,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:58,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:45:58,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:58,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:58,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:58,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:45:58,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:58,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 00:45:58,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:58,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:45:58,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:45:58,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:45:58,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:58,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 00:45:58,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:45:58,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:45:58,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:45:58,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:45:58,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:45:58,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 00:45:58,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:45:58,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 00:45:58,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:45:58,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 00:45:58,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:45:58,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 00:45:58,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1498771325] [2020-10-13 00:45:58,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 00:45:58,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 00:45:58,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649504886] [2020-10-13 00:45:58,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 00:45:58,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 00:45:58,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 00:45:58,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-13 00:45:58,861 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 12 states. [2020-10-13 00:45:59,352 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-10-13 00:46:00,528 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2020-10-13 00:46:01,091 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 231 [2020-10-13 00:46:01,785 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 236 [2020-10-13 00:46:02,235 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 00:46:06,733 WARN L193 SmtUtils]: Spent 905.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 237 [2020-10-13 00:46:07,235 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 237 [2020-10-13 00:46:07,686 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 237 [2020-10-13 00:46:23,059 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-13 00:46:45,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 00:46:45,402 INFO L93 Difference]: Finished difference Result 999 states and 1380 transitions. [2020-10-13 00:46:45,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 00:46:45,404 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 49 [2020-10-13 00:46:45,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 00:46:45,426 INFO L225 Difference]: With dead ends: 999 [2020-10-13 00:46:45,426 INFO L226 Difference]: Without dead ends: 577 [2020-10-13 00:46:45,436 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=188, Invalid=514, Unknown=0, NotChecked=0, Total=702 [2020-10-13 00:46:45,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2020-10-13 00:46:45,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 486. [2020-10-13 00:46:45,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 486 states. [2020-10-13 00:46:45,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 641 transitions. [2020-10-13 00:46:45,578 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 641 transitions. Word has length 49 [2020-10-13 00:46:45,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 00:46:45,578 INFO L479 AbstractCegarLoop]: Abstraction has 486 states and 641 transitions. [2020-10-13 00:46:45,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 00:46:45,579 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 641 transitions. [2020-10-13 00:46:45,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-13 00:46:45,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 00:46:45,587 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 00:46:45,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 00:46:45,587 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 00:46:45,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 00:46:45,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1074580247, now seen corresponding path program 1 times [2020-10-13 00:46:45,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 00:46:45,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [492698232] [2020-10-13 00:46:45,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 00:46:45,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:45,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:45,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:46,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:46,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:46,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:50,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:50,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-13 00:46:50,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 00:46:50,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4436 [2020-10-13 00:46:50,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:50,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 00:46:50,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-13 00:46:50,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 00:46:50,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:46:50,586 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-10-13 00:46:50,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:46:50,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:50,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:50,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:50,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:46:50,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:46:50,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 00:46:50,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:50,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:46:50,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:46:50,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:46:50,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:46:50,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 00:46:50,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:50,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:50,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:50,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:46:50,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:46:50,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 00:46:50,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:50,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:46:50,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:46:50,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:46:50,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:46:50,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 00:46:50,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:50,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:50,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:50,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 00:46:50,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:46:50,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 00:46:50,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:50,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:46:50,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:46:50,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 00:46:50,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:46:50,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:46:50,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:50,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:50,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:50,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:46:50,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:46:50,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 00:46:50,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:50,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:46:50,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:46:50,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 00:46:50,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:46:50,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 00:46:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:50,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:50,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:50,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 00:46:50,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:46:50,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 00:46:50,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:50,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:46:50,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:46:50,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 00:46:50,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:46:50,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 00:46:50,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:50,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:50,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:51,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:51,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 00:46:51,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 00:46:51,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 266 [2020-10-13 00:46:51,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:51,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 00:46:51,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 00:46:51,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 00:46:51,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:46:51,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:46:51,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:51,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:51,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:51,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:46:51,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:46:51,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 00:46:51,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:51,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:46:51,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:46:51,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 00:46:51,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:46:51,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 00:46:51,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:51,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:51,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:51,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 00:46:51,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:46:51,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 00:46:51,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:51,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:46:51,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:46:51,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 00:46:51,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:46:51,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:46:51,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:51,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:51,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:51,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:46:51,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:46:51,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 00:46:51,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:51,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:46:51,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:46:51,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:46:51,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:46:51,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 00:46:51,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:46:51,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:46:51,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:46:51,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:46:51,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:46:51,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 00:46:51,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:46:51,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 00:46:51,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:46:51,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 00:46:51,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:46:51,321 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 00:46:51,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [492698232] [2020-10-13 00:46:51,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 00:46:51,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 00:46:51,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267057853] [2020-10-13 00:46:51,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 00:46:51,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 00:46:51,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 00:46:51,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-13 00:46:51,326 INFO L87 Difference]: Start difference. First operand 486 states and 641 transitions. Second operand 12 states. [2020-10-13 00:46:51,744 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-10-13 00:46:53,039 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2020-10-13 00:46:53,626 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 231 [2020-10-13 00:47:15,045 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2020-10-13 00:47:16,152 WARN L193 SmtUtils]: Spent 781.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 237 [2020-10-13 00:47:16,709 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 237 [2020-10-13 00:47:17,234 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 237 [2020-10-13 00:47:41,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 00:47:41,336 INFO L93 Difference]: Finished difference Result 770 states and 1031 transitions. [2020-10-13 00:47:41,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 00:47:41,337 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 73 [2020-10-13 00:47:41,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 00:47:41,346 INFO L225 Difference]: With dead ends: 770 [2020-10-13 00:47:41,346 INFO L226 Difference]: Without dead ends: 751 [2020-10-13 00:47:41,348 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=165, Invalid=387, Unknown=0, NotChecked=0, Total=552 [2020-10-13 00:47:41,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2020-10-13 00:47:41,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 669. [2020-10-13 00:47:41,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 669 states. [2020-10-13 00:47:41,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 892 transitions. [2020-10-13 00:47:41,498 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 892 transitions. Word has length 73 [2020-10-13 00:47:41,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 00:47:41,498 INFO L479 AbstractCegarLoop]: Abstraction has 669 states and 892 transitions. [2020-10-13 00:47:41,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 00:47:41,499 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 892 transitions. [2020-10-13 00:47:41,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-13 00:47:41,506 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 00:47:41,506 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 00:47:41,506 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 00:47:41,507 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 00:47:41,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 00:47:41,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1635186569, now seen corresponding path program 1 times [2020-10-13 00:47:41,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 00:47:41,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [922690141] [2020-10-13 00:47:41,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 00:47:41,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:41,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:41,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:41,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:41,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:46,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:46,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-13 00:47:46,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 00:47:46,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5124 [2020-10-13 00:47:46,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:46,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 00:47:46,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-13 00:47:46,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 00:47:46,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:47:47,226 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-10-13 00:47:47,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:47:47,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:47,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:47,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:47,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:47:47,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:47:47,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 00:47:47,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:47,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:47:47,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:47:47,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:47:47,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:47:47,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 00:47:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:47,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:47,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:47,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:47:47,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:47:47,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 00:47:47,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:47,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:47:47,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:47:47,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:47:47,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:47:47,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 00:47:47,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:47,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:47,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:47,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 00:47:47,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:47:47,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 00:47:47,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:47,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:47:47,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:47:47,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:47:47,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:47:47,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:47:47,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:47,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:47,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:47,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:47:47,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:47:47,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 00:47:47,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:47,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:47:47,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:47:47,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:47:47,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:47:47,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 00:47:47,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:47,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:47,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:47,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 00:47:47,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:47:47,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 00:47:47,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:47,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:47:47,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:47:47,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:47:47,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:47:47,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 00:47:47,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:47,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:47,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:47,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:52,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:52,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 00:47:52,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 00:47:52,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-10-13 00:47:52,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:52,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 00:47:52,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-13 00:47:52,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 00:47:52,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:47:52,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:47:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:52,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:52,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:52,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:47:52,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:47:52,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 00:47:52,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:52,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:47:52,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:47:52,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:47:52,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:47:52,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 00:47:52,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:52,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:52,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:52,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:52,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-13 00:47:52,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 00:47:52,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-10-13 00:47:52,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:52,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 00:47:52,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 00:47:52,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 00:47:52,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:47:52,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:47:52,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:52,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:52,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:52,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:52,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 00:47:52,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 00:47:52,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-13 00:47:52,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:52,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 00:47:52,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:47:52,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 00:47:52,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:47:52,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:47:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:52,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:53,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:53,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:47:53,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:47:53,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 00:47:53,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:53,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:47:53,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:47:53,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:47:53,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:47:53,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 00:47:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:53,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:53,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:53,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 00:47:53,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:47:53,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 00:47:53,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:53,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:47:53,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:47:53,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 00:47:53,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:47:53,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 00:47:53,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:53,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:53,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:53,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 00:47:53,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:47:53,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 00:47:53,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:53,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:47:53,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 00:47:53,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:47:53,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:47:53,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:47:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:53,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:53,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:53,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:47:53,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:47:53,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 00:47:53,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:53,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:47:53,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:47:53,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:47:53,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:47:53,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 00:47:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:47:53,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:47:53,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:47:53,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:47:53,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:47:53,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 00:47:53,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:47:53,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:47:53,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 00:47:53,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:47:53,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:47:53,172 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 00:47:53,173 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [922690141] [2020-10-13 00:47:53,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 00:47:53,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 00:47:53,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798659157] [2020-10-13 00:47:53,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 00:47:53,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 00:47:53,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 00:47:53,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-13 00:47:53,176 INFO L87 Difference]: Start difference. First operand 669 states and 892 transitions. Second operand 12 states. [2020-10-13 00:47:53,516 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-10-13 00:48:16,571 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-13 00:48:17,356 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-13 00:48:18,259 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 247 [2020-10-13 00:48:18,935 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-13 00:48:38,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 00:48:38,673 INFO L93 Difference]: Finished difference Result 1294 states and 1753 transitions. [2020-10-13 00:48:38,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-13 00:48:38,673 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 110 [2020-10-13 00:48:38,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 00:48:38,687 INFO L225 Difference]: With dead ends: 1294 [2020-10-13 00:48:38,687 INFO L226 Difference]: Without dead ends: 756 [2020-10-13 00:48:38,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=125, Invalid=427, Unknown=0, NotChecked=0, Total=552 [2020-10-13 00:48:38,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2020-10-13 00:48:38,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 673. [2020-10-13 00:48:38,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 673 states. [2020-10-13 00:48:38,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 895 transitions. [2020-10-13 00:48:38,781 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 895 transitions. Word has length 110 [2020-10-13 00:48:38,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 00:48:38,782 INFO L479 AbstractCegarLoop]: Abstraction has 673 states and 895 transitions. [2020-10-13 00:48:38,782 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 00:48:38,782 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 895 transitions. [2020-10-13 00:48:38,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-13 00:48:38,786 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 00:48:38,787 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 00:48:38,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 00:48:38,787 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 00:48:38,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 00:48:38,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1921606912, now seen corresponding path program 1 times [2020-10-13 00:48:38,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 00:48:38,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [869866302] [2020-10-13 00:48:38,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 00:48:38,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:48:38,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:48:38,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:48:39,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:48:40,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:48:43,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:48:43,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 00:48:43,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 00:48:43,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-10-13 00:48:43,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:48:43,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 00:48:43,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-13 00:48:43,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 00:48:43,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:48:44,344 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-10-13 00:48:44,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:48:44,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:48:44,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:48:44,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:48:44,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:48:44,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:48:44,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-13 00:48:44,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:48:44,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:48:44,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:48:44,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:48:44,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:48:44,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 00:48:44,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:48:44,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:48:44,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:48:44,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:48:44,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:48:44,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 00:48:44,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:48:44,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:48:44,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:48:44,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:48:44,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:48:44,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 00:48:44,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:48:44,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:48:44,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:48:44,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 00:48:44,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:48:44,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 00:48:44,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:48:44,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:48:44,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:48:44,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:48:44,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:48:44,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:48:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:48:44,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:48:44,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:48:44,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:48:44,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:48:44,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 00:48:44,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:48:44,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:48:44,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:48:44,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:48:44,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:48:44,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 00:48:44,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:48:44,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:48:44,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:48:44,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 00:48:44,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:48:44,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 00:48:44,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:48:44,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:48:44,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:48:44,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:48:44,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:48:44,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 00:48:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:48:44,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:48:44,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:48:44,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:48:47,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:48:47,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 00:48:47,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 00:48:47,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3052 [2020-10-13 00:48:47,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:48:47,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 00:48:47,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-13 00:48:47,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 00:48:47,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:48:47,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:48:47,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:48:47,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:48:47,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:48:47,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:48:47,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:48:47,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 00:48:47,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:48:47,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:48:47,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:48:47,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:48:47,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:48:47,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 00:48:47,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:48:47,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:48:47,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:48:47,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:48:47,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 00:48:47,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 00:48:47,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-13 00:48:47,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:48:47,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 00:48:47,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 00:48:47,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 00:48:47,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:48:47,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:48:47,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:48:47,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:48:47,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:48:47,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:48:47,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 00:48:47,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 00:48:47,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-13 00:48:47,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:48:47,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 00:48:47,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:48:47,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 00:48:47,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:48:47,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:48:47,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:48:47,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:48:47,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:48:47,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:48:47,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:48:47,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 00:48:47,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:48:47,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 00:48:47,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:48:47,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 00:48:47,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:48:48,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 00:48:48,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:48:48,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:48:48,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:48:48,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 00:48:48,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:48:48,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 00:48:48,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:48:48,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:48:48,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:48:48,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 00:48:48,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:48:48,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 00:48:48,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:48:48,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:48:48,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:48:48,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:48:48,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:48:48,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 00:48:48,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:48:48,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:48:48,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 00:48:48,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:48:48,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:48:48,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-13 00:48:48,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:48:48,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:48:48,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:48:48,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 00:48:48,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:48:48,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 00:48:48,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:48:48,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:48:48,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 00:48:48,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:48:48,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:48:48,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:48:48,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:48:48,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:48:48,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:48:48,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:48:48,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:48:48,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 00:48:48,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:48:48,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:48:48,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:48:48,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:48:48,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:48:48,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-13 00:48:48,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:48:48,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:48:48,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:48:48,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:48:48,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:48:48,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 00:48:48,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:48:48,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:48:48,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 00:48:48,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:48:48,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:48:48,114 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 00:48:48,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [869866302] [2020-10-13 00:48:48,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 00:48:48,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-13 00:48:48,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120573790] [2020-10-13 00:48:48,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-13 00:48:48,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 00:48:48,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-13 00:48:48,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-10-13 00:48:48,117 INFO L87 Difference]: Start difference. First operand 673 states and 895 transitions. Second operand 15 states. [2020-10-13 00:48:48,513 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2020-10-13 00:48:49,959 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 239