/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 SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -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--wan--hdlc_x25.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:34:01,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:34:01,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:34:01,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:34:01,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:34:01,713 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:34:01,715 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:34:01,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:34:01,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:34:01,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:34:01,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:34:01,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:34:01,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:34:01,732 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:34:01,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:34:01,737 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:34:01,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:34:01,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:34:01,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:34:01,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:34:01,755 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:34:01,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:34:01,757 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:34:01,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:34:01,761 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:34:01,762 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:34:01,762 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:34:01,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:34:01,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:34:01,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:34:01,767 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:34:01,768 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:34:01,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:34:01,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:34:01,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:34:01,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:34:01,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:34:01,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:34:01,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:34:01,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:34:01,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:34:01,777 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 [2020-09-25 00:34:01,829 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:34:01,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:34:01,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:34:01,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:34:01,832 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:34:01,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:34:01,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:34:01,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:34:01,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:34:01,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:34:01,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:34:01,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:34:01,835 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:34:01,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:34:01,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:34:01,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:34:01,836 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:34:01,837 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:34:01,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:34:01,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:34:01,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:34:01,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:34:01,838 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:34:01,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:34:01,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:34:01,838 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:34:01,839 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-25 00:34:01,839 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 -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; [2020-09-25 00:34:02,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:34:02,335 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:34:02,341 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:34:02,343 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:34:02,344 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:34:02,345 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-25 00:34:02,422 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8ae3c5ebc/566e90c8a1624a5eaaf12bbb138c1717/FLAG1511b9898 [2020-09-25 00:34:03,256 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:34:03,260 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-25 00:34:03,308 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8ae3c5ebc/566e90c8a1624a5eaaf12bbb138c1717/FLAG1511b9898 [2020-09-25 00:34:03,755 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8ae3c5ebc/566e90c8a1624a5eaaf12bbb138c1717 [2020-09-25 00:34:03,769 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:34:03,774 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:34:03,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:34:03,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:34:03,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:34:03,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:34:03" (1/1) ... [2020-09-25 00:34:03,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@572ce4d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:34:03, skipping insertion in model container [2020-09-25 00:34:03,785 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:34:03" (1/1) ... [2020-09-25 00:34:03,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:34:03,933 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:34:05,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:34:05,722 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:34:06,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:34:06,155 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:34:06,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:34:06 WrapperNode [2020-09-25 00:34:06,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:34:06,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:34:06,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:34:06,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:34:06,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:34:06" (1/1) ... [2020-09-25 00:34:06,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:34:06" (1/1) ... [2020-09-25 00:34:06,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:34:06" (1/1) ... [2020-09-25 00:34:06,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:34:06" (1/1) ... [2020-09-25 00:34:06,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:34:06" (1/1) ... [2020-09-25 00:34:06,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:34:06" (1/1) ... [2020-09-25 00:34:06,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:34:06" (1/1) ... [2020-09-25 00:34:06,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:34:06,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:34:06,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:34:06,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:34:06,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:34:06" (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 [2020-09-25 00:34:06,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:34:06,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:34:06,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~~netdev_tx_t~0 [2020-09-25 00:34:06,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-09-25 00:34:06,453 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-09-25 00:34:06,453 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-09-25 00:34:06,453 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2020-09-25 00:34:06,453 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2020-09-25 00:34:06,453 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_shared [2020-09-25 00:34:06,454 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_share_check [2020-09-25 00:34:06,454 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2020-09-25 00:34:06,454 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2020-09-25 00:34:06,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_cow [2020-09-25 00:34:06,454 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cow [2020-09-25 00:34:06,454 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 00:34:06,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_zalloc [2020-09-25 00:34:06,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 00:34:06,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-25 00:34:06,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-25 00:34:06,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-25 00:34:06,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-25 00:34:06,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-25 00:34:06,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-25 00:34:06,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-25 00:34:06,456 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-09-25 00:34:06,456 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-09-25 00:34:06,456 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_dormant_off [2020-09-25 00:34:06,456 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2020-09-25 00:34:06,457 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_type_trans [2020-09-25 00:34:06,457 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_connect_disconnect [2020-09-25 00:34:06,457 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_connected [2020-09-25 00:34:06,457 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_disconnected [2020-09-25 00:34:06,457 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_data_indication [2020-09-25 00:34:06,457 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_data_transmit [2020-09-25 00:34:06,457 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_xmit [2020-09-25 00:34:06,458 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_open [2020-09-25 00:34:06,458 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_close [2020-09-25 00:34:06,458 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_rx [2020-09-25 00:34:06,458 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_ioctl [2020-09-25 00:34:06,458 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_init [2020-09-25 00:34:06,458 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_exit [2020-09-25 00:34:06,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_hdlc_proto_1 [2020-09-25 00:34:06,459 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:34:06,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-09-25 00:34:06,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-09-25 00:34:06,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-09-25 00:34:06,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-09-25 00:34:06,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-09-25 00:34:06,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_12 [2020-09-25 00:34:06,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2020-09-25 00:34:06,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_14 [2020-09-25 00:34:06,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-09-25 00:34:06,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-25 00:34:06,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-09-25 00:34:06,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-09-25 00:34:06,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-09-25 00:34:06,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-25 00:34:06,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-25 00:34:06,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-25 00:34:06,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-25 00:34:06,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-09-25 00:34:06,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 00:34:06,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-09-25 00:34:06,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-09-25 00:34:06,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-09-25 00:34:06,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-09-25 00:34:06,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-09-25 00:34:06,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 00:34:06,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2020-09-25 00:34:06,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2020-09-25 00:34:06,463 INFO L138 BoogieDeclarations]: Found implementation of procedure attach_hdlc_protocol [2020-09-25 00:34:06,463 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2020-09-25 00:34:06,463 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_connect_request [2020-09-25 00:34:06,464 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_received [2020-09-25 00:34:06,464 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_request [2020-09-25 00:34:06,464 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_disconnect_request [2020-09-25 00:34:06,464 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_register [2020-09-25 00:34:06,464 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_unregister [2020-09-25 00:34:06,464 INFO L138 BoogieDeclarations]: Found implementation of procedure linkwatch_fire_event [2020-09-25 00:34:06,465 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-09-25 00:34:06,465 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2020-09-25 00:34:06,465 INFO L138 BoogieDeclarations]: Found implementation of procedure register_hdlc_protocol [2020-09-25 00:34:06,465 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2020-09-25 00:34:06,465 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-09-25 00:34:06,465 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-09-25 00:34:06,465 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-09-25 00:34:06,466 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_hdlc_protocol [2020-09-25 00:34:06,466 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-25 00:34:06,466 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-25 00:34:06,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:34:06,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-25 00:34:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-09-25 00:34:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2020-09-25 00:34:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-09-25 00:34:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:34:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2020-09-25 00:34:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-09-25 00:34:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-09-25 00:34:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-09-25 00:34:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-09-25 00:34:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-09-25 00:34:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2020-09-25 00:34:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2020-09-25 00:34:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2020-09-25 00:34:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:34:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2020-09-25 00:34:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure skb_shared [2020-09-25 00:34:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure skb_share_check [2020-09-25 00:34:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:34:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-09-25 00:34:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-09-25 00:34:06,470 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-09-25 00:34:06,470 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2020-09-25 00:34:06,470 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2020-09-25 00:34:06,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:34:06,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_12 [2020-09-25 00:34:06,470 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_cow [2020-09-25 00:34:06,471 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cow [2020-09-25 00:34:06,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-09-25 00:34:06,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-09-25 00:34:06,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-09-25 00:34:06,471 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:34:06,471 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 00:34:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:34:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 00:34:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 00:34:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 00:34:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_zalloc [2020-09-25 00:34:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:34:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-25 00:34:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 00:34:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-25 00:34:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-25 00:34:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-25 00:34:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-25 00:34:06,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-25 00:34:06,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-25 00:34:06,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_hdlc_proto_1 [2020-09-25 00:34:06,474 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-09-25 00:34:06,474 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2020-09-25 00:34:06,474 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-09-25 00:34:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2020-09-25 00:34:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_14 [2020-09-25 00:34:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure linkwatch_fire_event [2020-09-25 00:34:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure netif_dormant_off [2020-09-25 00:34:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-09-25 00:34:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure register_hdlc_protocol [2020-09-25 00:34:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_hdlc_protocol [2020-09-25 00:34:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2020-09-25 00:34:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure attach_hdlc_protocol [2020-09-25 00:34:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_register [2020-09-25 00:34:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_unregister [2020-09-25 00:34:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_connect_request [2020-09-25 00:34:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_disconnect_request [2020-09-25 00:34:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_request [2020-09-25 00:34:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_received [2020-09-25 00:34:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure x25_type_trans [2020-09-25 00:34:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:34:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure x25_ioctl [2020-09-25 00:34:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure x25_connect_disconnect [2020-09-25 00:34:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure x25_connected [2020-09-25 00:34:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure x25_disconnected [2020-09-25 00:34:06,478 INFO L130 BoogieDeclarations]: Found specification of procedure x25_data_indication [2020-09-25 00:34:06,478 INFO L130 BoogieDeclarations]: Found specification of procedure x25_data_transmit [2020-09-25 00:34:06,478 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~~netdev_tx_t~0 [2020-09-25 00:34:06,478 INFO L130 BoogieDeclarations]: Found specification of procedure x25_xmit [2020-09-25 00:34:06,478 INFO L130 BoogieDeclarations]: Found specification of procedure x25_open [2020-09-25 00:34:06,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:34:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure x25_close [2020-09-25 00:34:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure x25_rx [2020-09-25 00:34:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-09-25 00:34:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure mod_init [2020-09-25 00:34:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure mod_exit [2020-09-25 00:34:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 00:34:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 00:34:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:34:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-09-25 00:34:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-25 00:34:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-09-25 00:34:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-09-25 00:34:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-09-25 00:34:06,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-25 00:34:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-25 00:34:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-25 00:34:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-25 00:34:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-09-25 00:34:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-09-25 00:34:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-09-25 00:34:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-25 00:34:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:34:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-25 00:34:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:34:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 00:34:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:34:07,092 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-25 00:34:08,101 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:34:08,102 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-25 00:34:08,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:34:08 BoogieIcfgContainer [2020-09-25 00:34:08,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:34:08,116 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:34:08,116 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:34:08,120 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:34:08,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:34:03" (1/3) ... [2020-09-25 00:34:08,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ef89ea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:34:08, skipping insertion in model container [2020-09-25 00:34:08,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:34:06" (2/3) ... [2020-09-25 00:34:08,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ef89ea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:34:08, skipping insertion in model container [2020-09-25 00:34:08,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:34:08" (3/3) ... [2020-09-25 00:34:08,124 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-25 00:34:08,136 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:34:08,147 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:34:08,170 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:34:08,212 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:34:08,212 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:34:08,212 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:34:08,212 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:34:08,213 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:34:08,213 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:34:08,214 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:34:08,214 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:34:08,264 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states. [2020-09-25 00:34:08,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-09-25 00:34:08,296 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:34:08,298 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:34:08,299 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:34:08,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:34:08,310 INFO L82 PathProgramCache]: Analyzing trace with hash 2033327711, now seen corresponding path program 1 times [2020-09-25 00:34:08,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:34:08,324 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1677993084] [2020-09-25 00:34:08,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:34:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:08,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:09,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:10,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:10,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-25 00:34:10,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:34:10,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1337 [2020-09-25 00:34:10,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:10,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:34:10,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 00:34:10,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 00:34:10,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 00:34:10,338 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-09-25 00:34:10,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:34:10,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:10,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:10,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:10,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 00:34:10,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:10,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 00:34:10,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:10,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:10,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:10,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:10,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:10,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 00:34:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:10,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:10,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:10,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 00:34:10,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:10,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 00:34:10,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:10,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:10,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:10,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:10,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:34:10,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:34:10,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:10,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:10,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:10,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:34:10,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:10,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 00:34:10,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:10,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:10,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:10,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:10,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:34:10,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 00:34:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:10,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:10,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:10,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:34:10,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:10,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 00:34:10,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:10,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:10,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:10,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:10,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:10,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 00:34:10,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:10,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:10,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:10,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 00:34:10,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:10,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 00:34:10,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:10,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:34:10,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:10,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:34:10,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:10,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:34:10,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:10,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:10,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:10,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:34:10,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:10,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 00:34:10,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:10,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:34:10,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:10,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:34:10,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:10,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 00:34:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:10,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:10,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:10,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 00:34:10,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:10,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 00:34:10,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:10,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:34:10,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:10,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 00:34:10,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:10,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:34:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:10,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:10,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:10,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:34:10,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:10,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 00:34:10,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:10,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:10,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:10,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:10,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:34:10,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-25 00:34:11,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:11,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:11,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:11,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:34:11,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:11,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 00:34:11,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:11,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:34:11,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:11,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:34:11,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:11,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:34:11,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1677993084] [2020-09-25 00:34:11,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:34:11,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 00:34:11,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334216462] [2020-09-25 00:34:11,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:34:11,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:34:11,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:34:11,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:34:11,227 INFO L87 Difference]: Start difference. First operand 890 states. Second operand 10 states. [2020-09-25 00:34:11,399 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-09-25 00:34:13,007 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 102 [2020-09-25 00:34:13,243 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-25 00:34:13,448 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-09-25 00:34:13,628 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-25 00:34:21,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:34:21,393 INFO L93 Difference]: Finished difference Result 2288 states and 2752 transitions. [2020-09-25 00:34:21,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 00:34:21,396 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 106 [2020-09-25 00:34:21,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:34:21,427 INFO L225 Difference]: With dead ends: 2288 [2020-09-25 00:34:21,427 INFO L226 Difference]: Without dead ends: 1575 [2020-09-25 00:34:21,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=151, Invalid=355, Unknown=0, NotChecked=0, Total=506 [2020-09-25 00:34:21,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1575 states. [2020-09-25 00:34:21,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1575 to 1379. [2020-09-25 00:34:21,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1379 states. [2020-09-25 00:34:21,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 1561 transitions. [2020-09-25 00:34:21,697 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 1561 transitions. Word has length 106 [2020-09-25 00:34:21,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:34:21,699 INFO L479 AbstractCegarLoop]: Abstraction has 1379 states and 1561 transitions. [2020-09-25 00:34:21,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 00:34:21,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 1561 transitions. [2020-09-25 00:34:21,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 00:34:21,706 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:34:21,712 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:34:21,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:34:21,713 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:34:21,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:34:21,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1002477034, now seen corresponding path program 1 times [2020-09-25 00:34:21,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:34:21,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [46889824] [2020-09-25 00:34:21,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:34:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:21,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:22,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:22,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:23,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:24,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:26,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:26,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-25 00:34:26,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:34:26,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 00:34:26,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:26,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:34:26,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 00:34:26,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 00:34:26,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:27,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:34:27,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:27,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:27,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:27,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 00:34:27,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:27,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 00:34:27,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:27,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:34:27,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:27,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 00:34:27,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:27,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 00:34:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:27,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:27,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:27,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 00:34:27,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:27,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 00:34:27,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:27,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:34:27,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:27,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 00:34:27,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:27,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:34:27,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:27,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:27,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:27,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:34:27,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:27,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 00:34:27,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:27,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:27,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:27,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:27,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:27,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 00:34:27,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:27,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:27,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:27,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:34:27,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:27,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 00:34:27,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:27,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:27,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:27,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:27,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:27,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 00:34:27,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:27,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:27,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:27,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 00:34:27,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:27,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 00:34:27,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:27,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:34:27,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:27,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 00:34:27,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:27,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:34:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:27,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:27,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:27,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:34:27,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:27,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 00:34:27,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:27,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:27,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:27,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:27,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:27,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:34:27,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:27,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:27,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:28,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:28,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 00:34:28,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:34:28,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 434 [2020-09-25 00:34:28,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:28,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:34:28,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:34:28,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 00:34:28,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:28,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:34:28,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:28,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:28,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:28,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:34:28,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:28,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 00:34:28,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:28,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:34:28,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:28,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:34:28,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:34:28,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 00:34:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:28,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:28,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:28,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:34:28,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:28,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 00:34:28,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:28,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:34:28,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:28,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:34:28,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:28,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 00:34:28,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:28,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:28,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:28,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:28,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:34:28,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:34:28,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-09-25 00:34:28,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:28,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:34:28,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:28,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 00:34:28,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:28,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:34:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:28,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:28,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:28,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:28,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:34:28,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:34:28,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 00:34:28,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:28,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:28,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:28,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:28,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:28,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 00:34:28,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:28,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:28,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:28,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 00:34:28,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:28,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 00:34:28,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:28,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:28,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:34:28,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:28,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:28,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:34:28,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:28,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:28,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:28,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:34:28,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:28,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 00:34:28,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:28,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:28,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:28,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:28,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:28,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 00:34:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:28,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:28,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:28,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:34:28,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:28,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 00:34:28,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:28,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:28,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 00:34:28,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:28,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:28,816 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 00:34:28,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [46889824] [2020-09-25 00:34:28,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:34:28,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 00:34:28,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903945554] [2020-09-25 00:34:28,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 00:34:28,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:34:28,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 00:34:28,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-09-25 00:34:28,821 INFO L87 Difference]: Start difference. First operand 1379 states and 1561 transitions. Second operand 13 states. [2020-09-25 00:34:29,888 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-09-25 00:34:32,283 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-25 00:34:33,571 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-25 00:34:37,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:34:37,982 INFO L93 Difference]: Finished difference Result 4371 states and 5091 transitions. [2020-09-25 00:34:37,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-09-25 00:34:37,983 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 171 [2020-09-25 00:34:37,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:34:37,999 INFO L225 Difference]: With dead ends: 4371 [2020-09-25 00:34:37,999 INFO L226 Difference]: Without dead ends: 2578 [2020-09-25 00:34:38,007 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=325, Invalid=1157, Unknown=0, NotChecked=0, Total=1482 [2020-09-25 00:34:38,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2578 states. [2020-09-25 00:34:38,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2578 to 2239. [2020-09-25 00:34:38,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2239 states. [2020-09-25 00:34:38,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2239 states to 2239 states and 2530 transitions. [2020-09-25 00:34:38,163 INFO L78 Accepts]: Start accepts. Automaton has 2239 states and 2530 transitions. Word has length 171 [2020-09-25 00:34:38,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:34:38,164 INFO L479 AbstractCegarLoop]: Abstraction has 2239 states and 2530 transitions. [2020-09-25 00:34:38,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 00:34:38,164 INFO L276 IsEmpty]: Start isEmpty. Operand 2239 states and 2530 transitions. [2020-09-25 00:34:38,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-25 00:34:38,171 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:34:38,171 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:34:38,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:34:38,172 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:34:38,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:34:38,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1381291275, now seen corresponding path program 1 times [2020-09-25 00:34:38,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:34:38,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1152965822] [2020-09-25 00:34:38,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:34:38,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:38,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:38,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:38,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:38,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:41,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:43,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:43,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-09-25 00:34:43,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:34:43,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-09-25 00:34:43,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:43,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:34:43,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-09-25 00:34:43,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 00:34:43,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:34:43,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:34:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:43,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:43,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:43,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 00:34:43,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:43,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 00:34:43,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:43,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:43,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:43,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:43,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:34:43,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 00:34:43,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:43,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:43,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:43,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 00:34:43,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:43,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 00:34:43,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:43,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:43,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:43,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:43,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:34:43,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:34:43,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:43,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:43,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:43,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:34:43,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:43,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 00:34:43,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:43,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:43,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:43,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:43,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:34:43,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 00:34:43,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:43,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:43,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:43,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:34:43,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:43,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 00:34:43,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:43,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:43,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:43,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:43,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:34:43,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 00:34:43,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:43,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:43,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:43,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 00:34:43,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:43,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 00:34:43,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:43,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:43,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:43,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:43,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:43,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:34:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:43,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:43,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:43,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:34:43,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:43,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 00:34:43,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:43,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:43,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:43,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:43,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:43,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-09-25 00:34:43,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:43,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:44,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:44,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:45,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:48,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:48,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-09-25 00:34:48,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:34:48,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 00:34:48,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:48,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 00:34:48,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-09-25 00:34:48,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 00:34:48,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:48,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 00:34:48,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:49,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:49,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:50,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:50,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-09-25 00:34:50,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:34:50,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1602 [2020-09-25 00:34:50,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:50,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 00:34:50,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-09-25 00:34:50,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 00:34:50,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:50,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 00:34:50,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:50,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:50,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:50,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 00:34:50,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:50,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 00:34:50,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:50,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:50,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:50,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:50,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:50,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:34:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:50,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:50,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:50,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:34:50,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:50,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 00:34:50,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:50,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:34:50,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:50,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:34:50,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:34:50,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 00:34:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:50,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:50,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:50,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 00:34:50,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:50,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 00:34:50,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:50,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:34:50,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:50,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 00:34:50,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:34:51,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:34:51,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:51,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:34:51,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:34:51,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 00:34:51,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:34:51,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 00:34:51,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:34:51,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 00:34:51,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:34:51,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 00:34:51,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:34:51,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-25 00:34:51,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:34:51,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking...