/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --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 15:16:21,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 15:16:21,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 15:16:21,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 15:16:21,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 15:16:21,751 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 15:16:21,753 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 15:16:21,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 15:16:21,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 15:16:21,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 15:16:21,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 15:16:21,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 15:16:21,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 15:16:21,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 15:16:21,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 15:16:21,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 15:16:21,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 15:16:21,776 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 15:16:21,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 15:16:21,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 15:16:21,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 15:16:21,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 15:16:21,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 15:16:21,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 15:16:21,804 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 15:16:21,805 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 15:16:21,811 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 15:16:21,812 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 15:16:21,813 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 15:16:21,817 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 15:16:21,817 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 15:16:21,818 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 15:16:21,819 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 15:16:21,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 15:16:21,822 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 15:16:21,822 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 15:16:21,823 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 15:16:21,823 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 15:16:21,823 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 15:16:21,825 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 15:16:21,825 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 15:16:21,826 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 15:16:21,869 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 15:16:21,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 15:16:21,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 15:16:21,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 15:16:21,873 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 15:16:21,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 15:16:21,874 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 15:16:21,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 15:16:21,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 15:16:21,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 15:16:21,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 15:16:21,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 15:16:21,876 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 15:16:21,876 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 15:16:21,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 15:16:21,876 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 15:16:21,877 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 15:16:21,877 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 15:16:21,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 15:16:21,878 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 15:16:21,879 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 15:16:21,880 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 15:16:21,880 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 15:16:21,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 15:16:21,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 15:16:21,883 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 15:16:21,883 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-25 15:16:21,883 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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 15:16:22,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 15:16:22,361 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 15:16:22,368 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 15:16:22,369 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 15:16:22,371 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 15:16:22,372 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-25 15:16:22,457 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4ecc79957/9dc5d41103da41f7b7e249818210bdeb/FLAG4d7aa33d1 [2020-09-25 15:16:23,279 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 15:16:23,280 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-25 15:16:23,312 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4ecc79957/9dc5d41103da41f7b7e249818210bdeb/FLAG4d7aa33d1 [2020-09-25 15:16:23,801 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4ecc79957/9dc5d41103da41f7b7e249818210bdeb [2020-09-25 15:16:23,816 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 15:16:23,823 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 15:16:23,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 15:16:23,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 15:16:23,828 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 15:16:23,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:16:23" (1/1) ... [2020-09-25 15:16:23,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e8d2598 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:16:23, skipping insertion in model container [2020-09-25 15:16:23,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:16:23" (1/1) ... [2020-09-25 15:16:23,845 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 15:16:23,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 15:16:25,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 15:16:25,359 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 15:16:25,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 15:16:25,629 INFO L208 MainTranslator]: Completed translation [2020-09-25 15:16:25,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:16:25 WrapperNode [2020-09-25 15:16:25,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 15:16:25,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 15:16:25,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 15:16:25,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 15:16:25,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:16:25" (1/1) ... [2020-09-25 15:16:25,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:16:25" (1/1) ... [2020-09-25 15:16:25,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:16:25" (1/1) ... [2020-09-25 15:16:25,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:16:25" (1/1) ... [2020-09-25 15:16:25,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:16:25" (1/1) ... [2020-09-25 15:16:25,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:16:25" (1/1) ... [2020-09-25 15:16:25,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:16:25" (1/1) ... [2020-09-25 15:16:25,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 15:16:25,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 15:16:25,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 15:16:25,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 15:16:25,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:16:25" (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 15:16:25,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 15:16:25,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 15:16:25,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~~netdev_tx_t~0 [2020-09-25 15:16:25,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-09-25 15:16:25,896 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-09-25 15:16:25,897 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-09-25 15:16:25,897 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2020-09-25 15:16:25,897 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2020-09-25 15:16:25,898 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_shared [2020-09-25 15:16:25,899 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_share_check [2020-09-25 15:16:25,899 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2020-09-25 15:16:25,899 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2020-09-25 15:16:25,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_cow [2020-09-25 15:16:25,900 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cow [2020-09-25 15:16:25,900 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 15:16:25,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_zalloc [2020-09-25 15:16:25,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 15:16:25,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-25 15:16:25,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-25 15:16:25,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-25 15:16:25,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-25 15:16:25,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-25 15:16:25,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-25 15:16:25,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-25 15:16:25,904 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-09-25 15:16:25,904 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-09-25 15:16:25,904 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_dormant_off [2020-09-25 15:16:25,904 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2020-09-25 15:16:25,904 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_type_trans [2020-09-25 15:16:25,904 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_connect_disconnect [2020-09-25 15:16:25,905 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_connected [2020-09-25 15:16:25,905 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_disconnected [2020-09-25 15:16:25,905 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_data_indication [2020-09-25 15:16:25,905 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_data_transmit [2020-09-25 15:16:25,905 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_xmit [2020-09-25 15:16:25,905 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_open [2020-09-25 15:16:25,906 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_close [2020-09-25 15:16:25,906 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_rx [2020-09-25 15:16:25,906 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_ioctl [2020-09-25 15:16:25,906 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_init [2020-09-25 15:16:25,906 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_exit [2020-09-25 15:16:25,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_hdlc_proto_1 [2020-09-25 15:16:25,908 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 15:16:25,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-09-25 15:16:25,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-09-25 15:16:25,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-09-25 15:16:25,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-09-25 15:16:25,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-09-25 15:16:25,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_12 [2020-09-25 15:16:25,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2020-09-25 15:16:25,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_14 [2020-09-25 15:16:25,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-09-25 15:16:25,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-25 15:16:25,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-09-25 15:16:25,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-09-25 15:16:25,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-09-25 15:16:25,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-25 15:16:25,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-25 15:16:25,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-25 15:16:25,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-25 15:16:25,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-09-25 15:16:25,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 15:16:25,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-09-25 15:16:25,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-09-25 15:16:25,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-09-25 15:16:25,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-09-25 15:16:25,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-09-25 15:16:25,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 15:16:25,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2020-09-25 15:16:25,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2020-09-25 15:16:25,915 INFO L138 BoogieDeclarations]: Found implementation of procedure attach_hdlc_protocol [2020-09-25 15:16:25,916 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2020-09-25 15:16:25,917 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_connect_request [2020-09-25 15:16:25,919 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_received [2020-09-25 15:16:25,919 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_request [2020-09-25 15:16:25,919 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_disconnect_request [2020-09-25 15:16:25,920 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_register [2020-09-25 15:16:25,920 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_unregister [2020-09-25 15:16:25,920 INFO L138 BoogieDeclarations]: Found implementation of procedure linkwatch_fire_event [2020-09-25 15:16:25,921 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-09-25 15:16:25,921 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2020-09-25 15:16:25,921 INFO L138 BoogieDeclarations]: Found implementation of procedure register_hdlc_protocol [2020-09-25 15:16:25,921 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2020-09-25 15:16:25,922 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-09-25 15:16:25,922 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-09-25 15:16:25,922 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-09-25 15:16:25,923 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_hdlc_protocol [2020-09-25 15:16:25,923 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-25 15:16:25,923 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-25 15:16:25,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 15:16:25,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-25 15:16:25,924 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-09-25 15:16:25,924 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2020-09-25 15:16:25,925 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-09-25 15:16:25,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 15:16:25,925 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2020-09-25 15:16:25,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-09-25 15:16:25,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-09-25 15:16:25,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-09-25 15:16:25,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-09-25 15:16:25,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-09-25 15:16:25,927 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2020-09-25 15:16:25,927 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2020-09-25 15:16:25,928 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2020-09-25 15:16:25,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 15:16:25,928 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2020-09-25 15:16:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure skb_shared [2020-09-25 15:16:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure skb_share_check [2020-09-25 15:16:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 15:16:25,930 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-09-25 15:16:25,930 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-09-25 15:16:25,930 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-09-25 15:16:25,930 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2020-09-25 15:16:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2020-09-25 15:16:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 15:16:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_12 [2020-09-25 15:16:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_cow [2020-09-25 15:16:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cow [2020-09-25 15:16:25,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-09-25 15:16:25,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-09-25 15:16:25,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-09-25 15:16:25,934 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 15:16:25,935 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 15:16:25,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 15:16:25,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 15:16:25,937 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 15:16:25,937 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 15:16:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_zalloc [2020-09-25 15:16:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 15:16:25,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-25 15:16:25,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 15:16:25,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-25 15:16:25,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-25 15:16:25,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-25 15:16:25,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-25 15:16:25,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-25 15:16:25,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-25 15:16:25,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_hdlc_proto_1 [2020-09-25 15:16:25,948 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-09-25 15:16:25,948 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2020-09-25 15:16:25,948 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-09-25 15:16:25,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2020-09-25 15:16:25,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_14 [2020-09-25 15:16:25,949 INFO L130 BoogieDeclarations]: Found specification of procedure linkwatch_fire_event [2020-09-25 15:16:25,950 INFO L130 BoogieDeclarations]: Found specification of procedure netif_dormant_off [2020-09-25 15:16:25,960 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-09-25 15:16:25,960 INFO L130 BoogieDeclarations]: Found specification of procedure register_hdlc_protocol [2020-09-25 15:16:25,960 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_hdlc_protocol [2020-09-25 15:16:25,961 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2020-09-25 15:16:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure attach_hdlc_protocol [2020-09-25 15:16:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_register [2020-09-25 15:16:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_unregister [2020-09-25 15:16:25,963 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_connect_request [2020-09-25 15:16:25,963 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_disconnect_request [2020-09-25 15:16:25,963 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_request [2020-09-25 15:16:25,963 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_received [2020-09-25 15:16:25,964 INFO L130 BoogieDeclarations]: Found specification of procedure x25_type_trans [2020-09-25 15:16:25,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 15:16:25,964 INFO L130 BoogieDeclarations]: Found specification of procedure x25_ioctl [2020-09-25 15:16:25,964 INFO L130 BoogieDeclarations]: Found specification of procedure x25_connect_disconnect [2020-09-25 15:16:25,965 INFO L130 BoogieDeclarations]: Found specification of procedure x25_connected [2020-09-25 15:16:25,965 INFO L130 BoogieDeclarations]: Found specification of procedure x25_disconnected [2020-09-25 15:16:25,965 INFO L130 BoogieDeclarations]: Found specification of procedure x25_data_indication [2020-09-25 15:16:25,965 INFO L130 BoogieDeclarations]: Found specification of procedure x25_data_transmit [2020-09-25 15:16:25,966 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~~netdev_tx_t~0 [2020-09-25 15:16:25,966 INFO L130 BoogieDeclarations]: Found specification of procedure x25_xmit [2020-09-25 15:16:25,966 INFO L130 BoogieDeclarations]: Found specification of procedure x25_open [2020-09-25 15:16:25,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 15:16:25,968 INFO L130 BoogieDeclarations]: Found specification of procedure x25_close [2020-09-25 15:16:25,969 INFO L130 BoogieDeclarations]: Found specification of procedure x25_rx [2020-09-25 15:16:25,969 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-09-25 15:16:25,969 INFO L130 BoogieDeclarations]: Found specification of procedure mod_init [2020-09-25 15:16:25,969 INFO L130 BoogieDeclarations]: Found specification of procedure mod_exit [2020-09-25 15:16:25,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 15:16:25,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 15:16:25,970 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 15:16:25,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-09-25 15:16:25,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-25 15:16:25,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-09-25 15:16:25,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-09-25 15:16:25,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-09-25 15:16:25,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-25 15:16:25,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-25 15:16:25,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-25 15:16:25,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-25 15:16:25,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-09-25 15:16:25,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-09-25 15:16:25,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-09-25 15:16:25,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-25 15:16:25,975 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 15:16:25,975 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-25 15:16:25,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 15:16:25,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 15:16:25,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 15:16:26,810 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-25 15:16:28,084 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 15:16:28,084 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-25 15:16:28,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:16:28 BoogieIcfgContainer [2020-09-25 15:16:28,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 15:16:28,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 15:16:28,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 15:16:28,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 15:16:28,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:16:23" (1/3) ... [2020-09-25 15:16:28,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b9e6864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:16:28, skipping insertion in model container [2020-09-25 15:16:28,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:16:25" (2/3) ... [2020-09-25 15:16:28,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b9e6864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:16:28, skipping insertion in model container [2020-09-25 15:16:28,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:16:28" (3/3) ... [2020-09-25 15:16:28,107 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 15:16:28,121 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 15:16:28,132 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 15:16:28,155 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 15:16:28,189 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 15:16:28,189 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 15:16:28,190 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 15:16:28,190 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 15:16:28,190 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 15:16:28,190 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 15:16:28,190 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 15:16:28,190 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 15:16:28,288 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states. [2020-09-25 15:16:28,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-09-25 15:16:28,303 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 15:16:28,305 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 15:16:28,305 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 15:16:28,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 15:16:28,314 INFO L82 PathProgramCache]: Analyzing trace with hash 2033327711, now seen corresponding path program 1 times [2020-09-25 15:16:28,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 15:16:28,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1585062665] [2020-09-25 15:16:28,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 15:16:28,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:16:28,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:29,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:30,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:16:30,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-25 15:16:30,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 15:16:30,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1598 [2020-09-25 15:16:30,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:16:30,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:16:30,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 15:16:30,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 15:16:30,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 15:16:30,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 15:16:30,735 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-09-25 15:16:30,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 15:16:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:16:30,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:30,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:16:30,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 15:16:30,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:16:30,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-25 15:16:30,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:16:30,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:16:30,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 15:16:30,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:16:30,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 15:16:30,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:16:30,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 15:16:30,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:16:30,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:30,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:16:30,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 15:16:30,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:16:30,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 15:16:30,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:16:30,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:16:30,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 15:16:30,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:16:30,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 15:16:30,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:16:30,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 15:16:30,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:16:30,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:30,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:16:30,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 15:16:30,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:16:30,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 15:16:30,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:16:30,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:16:30,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 15:16:30,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:16:30,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 15:16:30,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:16:31,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 15:16:31,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:16:31,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:31,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:16:31,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 15:16:31,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:16:31,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 15:16:31,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:16:31,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:16:31,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 15:16:31,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:16:31,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 15:16:31,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:16:31,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 15:16:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:16:31,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:31,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:16:31,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 15:16:31,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:16:31,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 15:16:31,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:16:31,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:16:31,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 15:16:31,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:16:31,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 15:16:31,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:16:31,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 15:16:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:16:31,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:31,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:16:31,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 15:16:31,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:16:31,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 15:16:31,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:16:31,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:16:31,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 15:16:31,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:16:31,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 15:16:31,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:16:31,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 15:16:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:16:31,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:31,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:16:31,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 15:16:31,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:16:31,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 15:16:31,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:16:31,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:16:31,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 15:16:31,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:16:31,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 15:16:31,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:16:31,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 15:16:31,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:16:31,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:31,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:16:31,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 15:16:31,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:16:31,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 15:16:31,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:16:31,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:16:31,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 15:16:31,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:16:31,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 15:16:31,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:16:31,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-25 15:16:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:16:31,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:31,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:16:31,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 15:16:31,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:16:31,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 15:16:31,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:16:31,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:16:31,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 15:16:31,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:16:31,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 15:16:31,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:16:31,468 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 15:16:31,469 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1585062665] [2020-09-25 15:16:31,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 15:16:31,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 15:16:31,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886411944] [2020-09-25 15:16:31,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 15:16:31,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 15:16:31,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 15:16:31,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 15:16:31,500 INFO L87 Difference]: Start difference. First operand 890 states. Second operand 10 states. [2020-09-25 15:16:31,659 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-09-25 15:16:32,143 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-09-25 15:16:32,342 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-09-25 15:16:33,436 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 102 [2020-09-25 15:16:33,664 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-25 15:16:33,879 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-09-25 15:16:34,085 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-25 15:16:36,846 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-09-25 15:16:42,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 15:16:42,501 INFO L93 Difference]: Finished difference Result 2288 states and 2752 transitions. [2020-09-25 15:16:42,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 15:16:42,506 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 106 [2020-09-25 15:16:42,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 15:16:42,547 INFO L225 Difference]: With dead ends: 2288 [2020-09-25 15:16:42,547 INFO L226 Difference]: Without dead ends: 1575 [2020-09-25 15:16:42,558 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=151, Invalid=355, Unknown=0, NotChecked=0, Total=506 [2020-09-25 15:16:42,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1575 states. [2020-09-25 15:16:42,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1575 to 1379. [2020-09-25 15:16:42,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1379 states. [2020-09-25 15:16:42,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 1561 transitions. [2020-09-25 15:16:42,787 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 1561 transitions. Word has length 106 [2020-09-25 15:16:42,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 15:16:42,788 INFO L479 AbstractCegarLoop]: Abstraction has 1379 states and 1561 transitions. [2020-09-25 15:16:42,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 15:16:42,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 1561 transitions. [2020-09-25 15:16:42,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 15:16:42,797 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 15:16:42,798 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 15:16:42,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 15:16:42,798 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 15:16:42,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 15:16:42,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1002477034, now seen corresponding path program 1 times [2020-09-25 15:16:42,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 15:16:42,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [596126445] [2020-09-25 15:16:42,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 15:16:42,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:16:42,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:43,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:43,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:44,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:44,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:47,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:16:47,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-25 15:16:47,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 15:16:47,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-25 15:16:47,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:16:47,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:16:47,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 15:16:47,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-09-25 15:16:47,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-25 15:16:47,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 15:16:48,254 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-09-25 15:16:48,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 15:16:48,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:16:48,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:48,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:16:48,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 15:16:48,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:16:48,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 15:16:48,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:16:48,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:16:48,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 15:16:48,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:16:48,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 15:16:48,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:16:48,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 15:16:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:16:48,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:48,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:16:48,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 15:16:48,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:16:48,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 15:16:48,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:16:48,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:16:48,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 15:16:48,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:16:48,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 15:16:48,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 15:16:48,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 15:16:48,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:16:48,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:48,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:16:48,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 15:16:48,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:16:48,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 15:16:48,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:16:48,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:16:48,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 15:16:48,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:16:48,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 15:16:48,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:16:48,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 15:16:48,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:16:48,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:48,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:16:48,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 15:16:48,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:16:48,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 15:16:48,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:16:48,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:16:48,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 15:16:48,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:16:48,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 15:16:48,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:16:48,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 15:16:48,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:16:48,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:48,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:16:48,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 15:16:48,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:16:48,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 15:16:48,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:16:48,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:16:48,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 15:16:48,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:16:48,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 15:16:48,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:16:48,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 15:16:48,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:16:48,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:48,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:16:48,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 15:16:48,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:16:48,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 15:16:48,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:16:48,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:16:48,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 15:16:48,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:16:48,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 15:16:48,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:16:48,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 15:16:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:16:48,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:48,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:48,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:16:48,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 15:16:48,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 15:16:48,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-09-25 15:16:48,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:16:48,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:16:48,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 15:16:48,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:16:48,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 15:16:48,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 15:16:48,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 15:16:48,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:16:48,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:48,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:16:48,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 15:16:48,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:16:48,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 15:16:48,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:16:48,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:16:48,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 15:16:48,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:16:48,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 15:16:48,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:16:48,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 15:16:48,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:16:48,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:48,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:16:48,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 15:16:48,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:16:48,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 15:16:48,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:16:48,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:16:48,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 15:16:48,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:16:48,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 15:16:48,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:16:49,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 15:16:49,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:16:49,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:49,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:49,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:16:49,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 15:16:49,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 15:16:49,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 15:16:49,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:16:49,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:16:49,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 15:16:49,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 15:16:49,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 15:16:49,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:16:49,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 15:16:49,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:16:49,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:49,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:16:49,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 15:16:49,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:16:49,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 15:16:49,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:16:49,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:16:49,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 15:16:49,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 15:16:49,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 15:16:49,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:16:49,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 15:16:49,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:16:49,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:49,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:16:49,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 15:16:49,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:16:49,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 15:16:49,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:16:49,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:16:49,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 15:16:49,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 15:16:49,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 15:16:49,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:16:49,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 15:16:49,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:16:49,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:49,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:16:49,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 15:16:49,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:16:49,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 15:16:49,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:16:49,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:16:49,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 15:16:49,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:16:49,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 15:16:49,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 15:16:49,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 15:16:49,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:16:49,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:49,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:16:49,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 15:16:49,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:16:49,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 15:16:49,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:16:49,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:16:49,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 15:16:49,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 15:16:49,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 15:16:49,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 15:16:49,384 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 15:16:49,384 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [596126445] [2020-09-25 15:16:49,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 15:16:49,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 15:16:49,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896454113] [2020-09-25 15:16:49,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 15:16:49,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 15:16:49,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 15:16:49,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-25 15:16:49,389 INFO L87 Difference]: Start difference. First operand 1379 states and 1561 transitions. Second operand 10 states. [2020-09-25 15:16:50,048 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-09-25 15:16:51,622 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-25 15:16:54,023 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-25 15:16:57,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 15:16:57,156 INFO L93 Difference]: Finished difference Result 3708 states and 4430 transitions. [2020-09-25 15:16:57,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 15:16:57,157 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 171 [2020-09-25 15:16:57,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 15:16:57,179 INFO L225 Difference]: With dead ends: 3708 [2020-09-25 15:16:57,180 INFO L226 Difference]: Without dead ends: 2992 [2020-09-25 15:16:57,184 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2020-09-25 15:16:57,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2992 states. [2020-09-25 15:16:57,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2992 to 2629. [2020-09-25 15:16:57,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2629 states. [2020-09-25 15:16:57,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2629 states to 2629 states and 2986 transitions. [2020-09-25 15:16:57,395 INFO L78 Accepts]: Start accepts. Automaton has 2629 states and 2986 transitions. Word has length 171 [2020-09-25 15:16:57,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 15:16:57,396 INFO L479 AbstractCegarLoop]: Abstraction has 2629 states and 2986 transitions. [2020-09-25 15:16:57,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 15:16:57,396 INFO L276 IsEmpty]: Start isEmpty. Operand 2629 states and 2986 transitions. [2020-09-25 15:16:57,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-09-25 15:16:57,406 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 15:16:57,407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 15:16:57,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 15:16:57,407 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 15:16:57,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 15:16:57,408 INFO L82 PathProgramCache]: Analyzing trace with hash -544183953, now seen corresponding path program 1 times [2020-09-25 15:16:57,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 15:16:57,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1877695213] [2020-09-25 15:16:57,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 15:16:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:16:57,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:57,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:57,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:16:58,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:17:02,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:17:02,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-09-25 15:17:02,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 15:17:02,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 15:17:02,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:17:02,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:17:02,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 15:17:02,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 15:17:02,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 15:17:02,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:17:02,726 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-09-25 15:17:02,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 15:17:02,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:17:02,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:17:02,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:17:02,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 15:17:02,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:17:02,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 15:17:02,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:17:02,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:17:02,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 15:17:02,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:17:02,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 15:17:02,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 15:17:02,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 15:17:02,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:17:02,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:17:03,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:17:03,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 15:17:03,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:17:03,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 15:17:03,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:17:03,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:17:03,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 15:17:03,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:17:03,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 15:17:03,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:17:03,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 15:17:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:17:03,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:17:03,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:17:03,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 15:17:03,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:17:03,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 15:17:03,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:17:03,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:17:03,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 15:17:03,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:17:03,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 15:17:03,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:17:03,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 15:17:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:17:03,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:17:03,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:17:03,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 15:17:03,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:17:03,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 15:17:03,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:17:03,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:17:03,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 15:17:03,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:17:03,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 15:17:03,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:17:03,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 15:17:03,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:17:03,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:17:03,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:17:03,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 15:17:03,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:17:03,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 15:17:03,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:17:03,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:17:03,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 15:17:03,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:17:03,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 15:17:03,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:17:03,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 15:17:03,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:17:03,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:17:03,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:17:03,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 15:17:03,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:17:03,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 15:17:03,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:17:03,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:17:03,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 15:17:03,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:17:03,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 15:17:03,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:17:03,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 15:17:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:17:03,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:17:03,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:17:03,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-25 15:17:03,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:17:03,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-09-25 15:17:03,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:17:03,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:17:03,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 15:17:03,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 15:17:03,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 15:17:03,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:17:03,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 15:17:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:17:03,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:17:03,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:17:03,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 15:17:03,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:17:03,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-25 15:17:03,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:17:03,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:17:03,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 15:17:03,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:17:03,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 15:17:03,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:17:03,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 15:17:03,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:17:03,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:17:03,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:17:03,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 15:17:03,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:17:03,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 15:17:03,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:17:03,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:17:03,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 15:17:03,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:17:03,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 15:17:03,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:17:03,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 15:17:03,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:17:03,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:17:03,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:17:03,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 15:17:03,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:17:03,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 15:17:03,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:17:03,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:17:03,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 15:17:03,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:17:03,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 15:17:03,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:17:03,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 15:17:03,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:17:03,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:17:04,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:17:04,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 15:17:04,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:17:04,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 15:17:04,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:17:04,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:17:04,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 15:17:04,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:17:04,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 15:17:04,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:17:04,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 15:17:04,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:17:04,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:17:04,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:17:04,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 15:17:04,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:17:04,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 15:17:04,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:17:04,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:17:04,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 15:17:04,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 15:17:04,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 15:17:04,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:17:04,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 15:17:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:17:04,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:17:04,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:17:04,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 15:17:04,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:17:04,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 15:17:04,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:17:04,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:17:04,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 15:17:04,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 15:17:04,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 15:17:04,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:17:04,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 15:17:04,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 15:17:04,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 15:17:04,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 15:17:04,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 15:17:04,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 15:17:04,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 15:17:04,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 15:17:04,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 15:17:04,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 15:17:04,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 15:17:04,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 15:17:04,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 15:17:04,195 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 15:17:04,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1877695213] [2020-09-25 15:17:04,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 15:17:04,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 15:17:04,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087698489] [2020-09-25 15:17:04,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 15:17:04,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 15:17:04,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 15:17:04,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-09-25 15:17:04,198 INFO L87 Difference]: Start difference. First operand 2629 states and 2986 transitions. Second operand 13 states. [2020-09-25 15:17:04,851 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-09-25 15:17:05,081 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-25 15:17:05,241 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-09-25 15:17:05,707 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-25 15:17:08,892 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-09-25 15:17:09,843 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-09-25 15:17:10,057 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-09-25 15:17:10,229 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-25 15:17:10,474 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 114