/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=0.1 --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 10:46:26,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:46:26,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:46:26,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:46:26,609 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:46:26,617 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:46:26,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:46:26,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:46:26,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:46:26,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:46:26,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:46:26,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:46:26,633 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:46:26,636 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:46:26,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:46:26,640 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:46:26,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:46:26,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:46:26,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:46:26,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:46:26,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:46:26,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:46:26,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:46:26,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:46:26,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:46:26,680 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:46:26,680 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:46:26,681 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:46:26,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:46:26,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:46:26,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:46:26,684 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:46:26,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:46:26,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:46:26,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:46:26,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:46:26,688 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:46:26,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:46:26,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:46:26,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:46:26,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:46:26,691 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 10:46:26,717 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:46:26,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:46:26,718 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:46:26,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:46:26,719 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:46:26,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:46:26,719 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:46:26,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:46:26,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:46:26,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:46:26,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:46:26,720 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:46:26,721 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:46:26,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:46:26,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:46:26,721 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:46:26,721 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:46:26,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:46:26,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:46:26,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:46:26,722 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:46:26,722 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:46:26,723 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:46:26,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:46:26,723 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:46:26,723 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:46:26,724 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-25 10:46:26,724 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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;log-additional-information=true; [2020-09-25 10:46:27,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:46:27,228 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:46:27,235 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:46:27,237 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:46:27,238 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:46:27,239 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-25 10:46:27,328 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4837b663/a473ec507986495e8b536644512b3bfd/FLAG07191b643 [2020-09-25 10:46:28,213 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:46:28,214 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-25 10:46:28,254 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4837b663/a473ec507986495e8b536644512b3bfd/FLAG07191b643 [2020-09-25 10:46:28,689 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4837b663/a473ec507986495e8b536644512b3bfd [2020-09-25 10:46:28,703 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:46:28,709 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:46:28,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:46:28,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:46:28,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:46:28,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:46:28" (1/1) ... [2020-09-25 10:46:28,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40a85017 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:46:28, skipping insertion in model container [2020-09-25 10:46:28,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:46:28" (1/1) ... [2020-09-25 10:46:28,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:46:28,837 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:46:29,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:46:30,008 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:46:30,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:46:30,423 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:46:30,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:46:30 WrapperNode [2020-09-25 10:46:30,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:46:30,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:46:30,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:46:30,434 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:46:30,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:46:30" (1/1) ... [2020-09-25 10:46:30,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:46:30" (1/1) ... [2020-09-25 10:46:30,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:46:30" (1/1) ... [2020-09-25 10:46:30,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:46:30" (1/1) ... [2020-09-25 10:46:30,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:46:30" (1/1) ... [2020-09-25 10:46:30,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:46:30" (1/1) ... [2020-09-25 10:46:30,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:46:30" (1/1) ... [2020-09-25 10:46:30,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:46:30,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:46:30,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:46:30,634 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:46:30,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:46:30" (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 10:46:30,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:46:30,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:46:30,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~~netdev_tx_t~0 [2020-09-25 10:46:30,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-09-25 10:46:30,728 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-09-25 10:46:30,728 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-09-25 10:46:30,728 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2020-09-25 10:46:30,728 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2020-09-25 10:46:30,730 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_shared [2020-09-25 10:46:30,730 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_share_check [2020-09-25 10:46:30,730 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2020-09-25 10:46:30,730 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2020-09-25 10:46:30,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_cow [2020-09-25 10:46:30,731 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cow [2020-09-25 10:46:30,731 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 10:46:30,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_zalloc [2020-09-25 10:46:30,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 10:46:30,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-25 10:46:30,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-25 10:46:30,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-25 10:46:30,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-25 10:46:30,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-25 10:46:30,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-25 10:46:30,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-25 10:46:30,736 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-09-25 10:46:30,736 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-09-25 10:46:30,736 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_dormant_off [2020-09-25 10:46:30,737 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2020-09-25 10:46:30,737 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_type_trans [2020-09-25 10:46:30,737 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_connect_disconnect [2020-09-25 10:46:30,737 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_connected [2020-09-25 10:46:30,737 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_disconnected [2020-09-25 10:46:30,737 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_data_indication [2020-09-25 10:46:30,738 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_data_transmit [2020-09-25 10:46:30,738 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_xmit [2020-09-25 10:46:30,738 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_open [2020-09-25 10:46:30,738 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_close [2020-09-25 10:46:30,738 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_rx [2020-09-25 10:46:30,739 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_ioctl [2020-09-25 10:46:30,739 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_init [2020-09-25 10:46:30,739 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_exit [2020-09-25 10:46:30,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_hdlc_proto_1 [2020-09-25 10:46:30,739 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:46:30,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-09-25 10:46:30,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-09-25 10:46:30,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-09-25 10:46:30,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-09-25 10:46:30,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-09-25 10:46:30,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_12 [2020-09-25 10:46:30,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2020-09-25 10:46:30,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_14 [2020-09-25 10:46:30,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-09-25 10:46:30,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-25 10:46:30,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-09-25 10:46:30,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-09-25 10:46:30,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-09-25 10:46:30,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-25 10:46:30,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-25 10:46:30,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-25 10:46:30,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-25 10:46:30,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-09-25 10:46:30,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 10:46:30,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-09-25 10:46:30,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-09-25 10:46:30,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-09-25 10:46:30,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-09-25 10:46:30,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-09-25 10:46:30,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 10:46:30,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2020-09-25 10:46:30,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2020-09-25 10:46:30,782 INFO L138 BoogieDeclarations]: Found implementation of procedure attach_hdlc_protocol [2020-09-25 10:46:30,782 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2020-09-25 10:46:30,782 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_connect_request [2020-09-25 10:46:30,782 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_received [2020-09-25 10:46:30,782 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_request [2020-09-25 10:46:30,783 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_disconnect_request [2020-09-25 10:46:30,783 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_register [2020-09-25 10:46:30,783 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_unregister [2020-09-25 10:46:30,783 INFO L138 BoogieDeclarations]: Found implementation of procedure linkwatch_fire_event [2020-09-25 10:46:30,783 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-09-25 10:46:30,783 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2020-09-25 10:46:30,784 INFO L138 BoogieDeclarations]: Found implementation of procedure register_hdlc_protocol [2020-09-25 10:46:30,784 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2020-09-25 10:46:30,784 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-09-25 10:46:30,784 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-09-25 10:46:30,784 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-09-25 10:46:30,784 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_hdlc_protocol [2020-09-25 10:46:30,784 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-25 10:46:30,785 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-25 10:46:30,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:46:30,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-25 10:46:30,785 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-09-25 10:46:30,785 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2020-09-25 10:46:30,786 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-09-25 10:46:30,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 10:46:30,786 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2020-09-25 10:46:30,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-09-25 10:46:30,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-09-25 10:46:30,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-09-25 10:46:30,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-09-25 10:46:30,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-09-25 10:46:30,787 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2020-09-25 10:46:30,787 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2020-09-25 10:46:30,787 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2020-09-25 10:46:30,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 10:46:30,787 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2020-09-25 10:46:30,788 INFO L130 BoogieDeclarations]: Found specification of procedure skb_shared [2020-09-25 10:46:30,788 INFO L130 BoogieDeclarations]: Found specification of procedure skb_share_check [2020-09-25 10:46:30,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 10:46:30,788 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-09-25 10:46:30,788 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-09-25 10:46:30,788 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-09-25 10:46:30,789 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2020-09-25 10:46:30,789 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2020-09-25 10:46:30,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 10:46:30,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_12 [2020-09-25 10:46:30,789 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_cow [2020-09-25 10:46:30,789 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cow [2020-09-25 10:46:30,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-09-25 10:46:30,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-09-25 10:46:30,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-09-25 10:46:30,790 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 10:46:30,790 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 10:46:30,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:46:30,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 10:46:30,790 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 10:46:30,791 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 10:46:30,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_zalloc [2020-09-25 10:46:30,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 10:46:30,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-25 10:46:30,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 10:46:30,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-25 10:46:30,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-25 10:46:30,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-25 10:46:30,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-25 10:46:30,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-25 10:46:30,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-25 10:46:30,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_hdlc_proto_1 [2020-09-25 10:46:30,793 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-09-25 10:46:30,793 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2020-09-25 10:46:30,793 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-09-25 10:46:30,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2020-09-25 10:46:30,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_14 [2020-09-25 10:46:30,793 INFO L130 BoogieDeclarations]: Found specification of procedure linkwatch_fire_event [2020-09-25 10:46:30,794 INFO L130 BoogieDeclarations]: Found specification of procedure netif_dormant_off [2020-09-25 10:46:30,794 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-09-25 10:46:30,794 INFO L130 BoogieDeclarations]: Found specification of procedure register_hdlc_protocol [2020-09-25 10:46:30,794 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_hdlc_protocol [2020-09-25 10:46:30,794 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2020-09-25 10:46:30,794 INFO L130 BoogieDeclarations]: Found specification of procedure attach_hdlc_protocol [2020-09-25 10:46:30,794 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_register [2020-09-25 10:46:30,795 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_unregister [2020-09-25 10:46:30,795 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_connect_request [2020-09-25 10:46:30,795 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_disconnect_request [2020-09-25 10:46:30,795 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_request [2020-09-25 10:46:30,795 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_received [2020-09-25 10:46:30,795 INFO L130 BoogieDeclarations]: Found specification of procedure x25_type_trans [2020-09-25 10:46:30,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 10:46:30,796 INFO L130 BoogieDeclarations]: Found specification of procedure x25_ioctl [2020-09-25 10:46:30,796 INFO L130 BoogieDeclarations]: Found specification of procedure x25_connect_disconnect [2020-09-25 10:46:30,796 INFO L130 BoogieDeclarations]: Found specification of procedure x25_connected [2020-09-25 10:46:30,796 INFO L130 BoogieDeclarations]: Found specification of procedure x25_disconnected [2020-09-25 10:46:30,796 INFO L130 BoogieDeclarations]: Found specification of procedure x25_data_indication [2020-09-25 10:46:30,796 INFO L130 BoogieDeclarations]: Found specification of procedure x25_data_transmit [2020-09-25 10:46:30,797 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~~netdev_tx_t~0 [2020-09-25 10:46:30,797 INFO L130 BoogieDeclarations]: Found specification of procedure x25_xmit [2020-09-25 10:46:30,797 INFO L130 BoogieDeclarations]: Found specification of procedure x25_open [2020-09-25 10:46:30,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 10:46:30,797 INFO L130 BoogieDeclarations]: Found specification of procedure x25_close [2020-09-25 10:46:30,797 INFO L130 BoogieDeclarations]: Found specification of procedure x25_rx [2020-09-25 10:46:30,797 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-09-25 10:46:30,798 INFO L130 BoogieDeclarations]: Found specification of procedure mod_init [2020-09-25 10:46:30,798 INFO L130 BoogieDeclarations]: Found specification of procedure mod_exit [2020-09-25 10:46:30,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 10:46:30,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 10:46:30,798 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:46:30,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-09-25 10:46:30,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-25 10:46:30,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-09-25 10:46:30,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-09-25 10:46:30,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-09-25 10:46:30,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-25 10:46:30,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-25 10:46:30,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-25 10:46:30,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-25 10:46:30,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-09-25 10:46:30,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-09-25 10:46:30,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-09-25 10:46:30,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-25 10:46:30,800 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 10:46:30,800 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-25 10:46:30,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:46:30,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 10:46:30,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:46:31,333 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-25 10:46:32,658 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:46:32,659 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-25 10:46:32,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:46:32 BoogieIcfgContainer [2020-09-25 10:46:32,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:46:32,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:46:32,672 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:46:32,676 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:46:32,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:46:28" (1/3) ... [2020-09-25 10:46:32,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25cdbe9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:46:32, skipping insertion in model container [2020-09-25 10:46:32,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:46:30" (2/3) ... [2020-09-25 10:46:32,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25cdbe9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:46:32, skipping insertion in model container [2020-09-25 10:46:32,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:46:32" (3/3) ... [2020-09-25 10:46:32,681 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 10:46:32,692 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:46:32,703 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:46:32,727 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:46:32,764 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:46:32,764 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:46:32,764 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:46:32,764 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:46:32,765 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:46:32,765 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:46:32,765 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:46:32,765 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:46:32,806 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states. [2020-09-25 10:46:32,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-09-25 10:46:32,826 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:46:32,828 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 10:46:32,829 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:46:32,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:46:32,837 INFO L82 PathProgramCache]: Analyzing trace with hash 2033327711, now seen corresponding path program 1 times [2020-09-25 10:46:32,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:46:32,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [224297327] [2020-09-25 10:46:32,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:46:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:46:33,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:33,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:34,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:46:34,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-25 10:46:34,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:46:34,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1440 [2020-09-25 10:46:34,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:46:34,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:46:34,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:46:34,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 10:46:34,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 10:46:34,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 10:46:35,055 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-09-25 10:46:35,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:46:35,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:46:35,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:35,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:46:35,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 10:46:35,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:46:35,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-25 10:46:35,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:46:35,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:46:35,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:46:35,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:46:35,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:46:35,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:46:35,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 10:46:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:46:35,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:35,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:46:35,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:46:35,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:46:35,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 10:46:35,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:46:35,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:46:35,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:46:35,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:46:35,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:46:35,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:46:35,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:46:35,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:46:35,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:35,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:46:35,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:46:35,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:46:35,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 10:46:35,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:46:35,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:46:35,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:46:35,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:46:35,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:46:35,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:46:35,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 10:46:35,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:46:35,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:35,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:46:35,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:46:35,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:46:35,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 10:46:35,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:46:35,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:46:35,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:46:35,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:46:35,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:46:35,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:46:35,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 10:46:35,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:46:35,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:35,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:46:35,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 10:46:35,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:46:35,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 10:46:35,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:46:35,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:46:35,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:46:35,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:46:35,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:46:35,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:46:35,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:46:35,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:46:35,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:35,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:46:35,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:46:35,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:46:35,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 10:46:35,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:46:35,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:46:35,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:46:35,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:46:35,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:46:35,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:46:35,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 10:46:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:46:35,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:35,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:46:35,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 10:46:35,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:46:35,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 10:46:35,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:46:35,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:46:35,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:46:35,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:46:35,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 10:46:35,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:46:35,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:46:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:46:35,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:35,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:46:35,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:46:35,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:46:35,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 10:46:35,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:46:35,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:46:35,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:46:35,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:46:35,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:46:35,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:46:35,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-25 10:46:35,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:46:35,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:35,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:46:35,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:46:35,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:46:35,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 10:46:35,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:46:35,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:46:35,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:46:35,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:46:35,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:46:35,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:46:35,906 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 10:46:35,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [224297327] [2020-09-25 10:46:35,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:46:35,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 10:46:35,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786528472] [2020-09-25 10:46:35,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 10:46:35,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:46:35,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 10:46:35,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 10:46:35,943 INFO L87 Difference]: Start difference. First operand 890 states. Second operand 10 states. [2020-09-25 10:46:36,620 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-09-25 10:46:37,799 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 102 [2020-09-25 10:46:38,043 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-25 10:46:38,428 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-25 10:46:40,999 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-09-25 10:46:46,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:46:46,198 INFO L93 Difference]: Finished difference Result 2288 states and 2752 transitions. [2020-09-25 10:46:46,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 10:46:46,200 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 106 [2020-09-25 10:46:46,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:46:46,234 INFO L225 Difference]: With dead ends: 2288 [2020-09-25 10:46:46,234 INFO L226 Difference]: Without dead ends: 1575 [2020-09-25 10:46:46,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=151, Invalid=355, Unknown=0, NotChecked=0, Total=506 [2020-09-25 10:46:46,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1575 states. [2020-09-25 10:46:46,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1575 to 1379. [2020-09-25 10:46:46,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1379 states. [2020-09-25 10:46:46,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 1561 transitions. [2020-09-25 10:46:46,533 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 1561 transitions. Word has length 106 [2020-09-25 10:46:46,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:46:46,534 INFO L479 AbstractCegarLoop]: Abstraction has 1379 states and 1561 transitions. [2020-09-25 10:46:46,534 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 10:46:46,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 1561 transitions. [2020-09-25 10:46:46,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 10:46:46,546 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:46:46,546 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 10:46:46,547 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:46:46,547 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:46:46,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:46:46,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1002477034, now seen corresponding path program 1 times [2020-09-25 10:46:46,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:46:46,548 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1865629463] [2020-09-25 10:46:46,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:46:46,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:46:46,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:46,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:46,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:48,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:48,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:51,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:46:51,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-25 10:46:51,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:46:51,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 10:46:51,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:46:51,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:46:51,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:46:51,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-09-25 10:46:51,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-25 10:46:51,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:46:51,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:46:51,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:46:51,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:51,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:46:51,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 10:46:51,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:46:51,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 10:46:51,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:46:51,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:46:51,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:46:51,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:46:51,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:46:51,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 10:46:51,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 10:46:51,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:46:51,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:52,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:46:52,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:46:52,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:46:52,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 10:46:52,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:46:52,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:46:52,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:46:52,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:46:52,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:46:52,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:46:52,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:46:52,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:46:52,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:52,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:46:52,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:46:52,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:46:52,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 10:46:52,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:46:52,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:46:52,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:46:52,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:46:52,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:46:52,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:46:52,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 10:46:52,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:46:52,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:52,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:46:52,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:46:52,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:46:52,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 10:46:52,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:46:52,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:46:52,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:46:52,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:46:52,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:46:52,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:46:52,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 10:46:52,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:46:52,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:52,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:46:52,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 10:46:52,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:46:52,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 10:46:52,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:46:52,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:46:52,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:46:52,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:46:52,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:46:52,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:46:52,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:46:52,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:46:52,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:52,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:46:52,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:46:52,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:46:52,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 10:46:52,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:46:52,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:46:52,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:46:52,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:46:52,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:46:52,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:46:52,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 10:46:52,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:46:52,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:52,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:52,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:46:52,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 10:46:52,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:46:52,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-09-25 10:46:52,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:46:52,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:46:52,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:46:52,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:46:52,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 10:46:52,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:46:52,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:46:52,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:46:52,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:52,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:46:52,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:46:52,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:46:52,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 10:46:52,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:46:52,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:46:52,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:46:52,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:46:52,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:46:52,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:46:52,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 10:46:52,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:46:52,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:52,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:46:52,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:46:52,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:46:52,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 10:46:52,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:46:52,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:46:52,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:46:52,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:46:52,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:46:52,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:46:52,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 10:46:52,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:46:52,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:52,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:52,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:46:52,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:46:52,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:46:52,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 10:46:52,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:46:52,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:46:52,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:46:52,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:46:52,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:46:52,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:46:52,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:46:52,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:46:52,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:52,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:46:52,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 10:46:52,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:46:52,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 10:46:52,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:46:52,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:46:52,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:46:52,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 10:46:52,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:46:52,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:46:52,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 10:46:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:46:52,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:52,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:46:52,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 10:46:52,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:46:52,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 10:46:52,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:46:52,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:46:52,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:46:52,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:46:52,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:46:52,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:46:52,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:46:52,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:46:52,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:52,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:46:52,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:46:52,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:46:52,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 10:46:52,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:46:52,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:46:52,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:46:52,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:46:52,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:46:52,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:46:52,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 10:46:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:46:52,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:52,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:46:52,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:46:52,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:46:52,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 10:46:52,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:46:52,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:46:52,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:46:52,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 10:46:52,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:46:52,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:46:52,883 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 10:46:52,884 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1865629463] [2020-09-25 10:46:52,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:46:52,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 10:46:52,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000405232] [2020-09-25 10:46:52,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 10:46:52,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:46:52,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 10:46:52,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-25 10:46:52,888 INFO L87 Difference]: Start difference. First operand 1379 states and 1561 transitions. Second operand 10 states. [2020-09-25 10:46:59,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:46:59,508 INFO L93 Difference]: Finished difference Result 3708 states and 4430 transitions. [2020-09-25 10:46:59,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 10:46:59,509 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 171 [2020-09-25 10:46:59,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:46:59,537 INFO L225 Difference]: With dead ends: 3708 [2020-09-25 10:46:59,538 INFO L226 Difference]: Without dead ends: 2992 [2020-09-25 10:46:59,543 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2020-09-25 10:46:59,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2992 states. [2020-09-25 10:46:59,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2992 to 2629. [2020-09-25 10:46:59,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2629 states. [2020-09-25 10:46:59,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2629 states to 2629 states and 2986 transitions. [2020-09-25 10:46:59,750 INFO L78 Accepts]: Start accepts. Automaton has 2629 states and 2986 transitions. Word has length 171 [2020-09-25 10:46:59,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:46:59,752 INFO L479 AbstractCegarLoop]: Abstraction has 2629 states and 2986 transitions. [2020-09-25 10:46:59,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 10:46:59,752 INFO L276 IsEmpty]: Start isEmpty. Operand 2629 states and 2986 transitions. [2020-09-25 10:46:59,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-09-25 10:46:59,760 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:46:59,760 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 10:46:59,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:46:59,761 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:46:59,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:46:59,761 INFO L82 PathProgramCache]: Analyzing trace with hash -544183953, now seen corresponding path program 1 times [2020-09-25 10:46:59,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:46:59,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [306896733] [2020-09-25 10:46:59,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:46:59,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:46:59,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:46:59,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:47:00,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:47:00,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:47:04,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:47:04,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-09-25 10:47:04,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:47:04,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-09-25 10:47:04,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:47:04,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:47:04,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:47:04,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 10:47:04,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 10:47:04,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:47:05,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:47:05,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:47:05,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:47:05,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:47:05,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 10:47:05,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:47:05,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 10:47:05,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:47:05,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:47:05,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:47:05,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:47:05,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 10:47:05,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:47:05,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 10:47:05,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:47:05,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:47:05,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:47:05,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:47:05,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:47:05,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 10:47:05,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:47:05,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:47:05,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:47:05,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:47:05,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:47:05,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:47:05,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:47:05,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:47:05,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:47:05,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:47:05,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:47:05,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:47:05,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 10:47:05,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:47:05,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:47:05,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:47:05,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:47:05,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:47:05,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:47:05,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 10:47:05,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:47:05,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:47:05,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:47:05,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:47:05,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:47:05,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 10:47:05,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:47:05,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:47:05,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:47:05,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:47:05,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:47:05,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:47:05,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 10:47:05,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:47:05,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:47:05,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:47:05,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 10:47:05,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:47:05,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 10:47:05,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:47:05,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:47:05,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:47:05,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:47:05,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 10:47:05,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:47:05,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:47:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:47:05,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:47:05,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:47:05,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:47:05,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:47:05,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 10:47:05,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:47:05,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:47:05,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:47:05,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:47:05,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:47:05,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:47:05,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 10:47:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:47:05,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:47:05,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:47:05,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-25 10:47:05,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:47:05,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-09-25 10:47:05,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:47:05,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:47:05,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:47:05,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:47:05,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 10:47:05,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:47:05,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:47:05,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:47:05,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:47:06,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:47:06,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:47:06,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:47:06,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 10:47:06,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:47:06,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:47:06,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:47:06,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:47:06,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:47:06,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:47:06,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 10:47:06,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:47:06,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:47:06,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:47:06,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:47:06,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:47:06,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 10:47:06,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:47:06,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:47:06,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:47:06,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:47:06,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:47:06,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:47:06,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 10:47:06,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:47:06,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:47:06,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:47:06,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 10:47:06,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:47:06,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 10:47:06,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:47:06,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:47:06,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:47:06,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:47:06,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 10:47:06,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:47:06,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:47:06,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:47:06,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:47:06,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:47:06,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:47:06,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:47:06,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 10:47:06,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:47:06,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:47:06,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:47:06,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:47:06,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:47:06,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:47:06,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 10:47:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:47:06,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:47:06,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:47:06,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:47:06,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:47:06,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 10:47:06,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:47:06,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:47:06,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:47:06,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 10:47:06,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:47:06,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:47:06,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:47:06,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:47:06,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:47:06,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:47:06,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:47:06,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:47:06,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 10:47:06,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:47:06,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:47:06,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:47:06,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:47:06,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:47:06,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:47:06,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 10:47:06,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:47:06,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:47:06,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:47:06,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:47:06,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:47:06,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 10:47:06,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:47:06,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:47:06,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:47:06,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 10:47:06,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:47:06,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:47:06,457 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 10:47:06,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [306896733] [2020-09-25 10:47:06,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:47:06,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 10:47:06,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200331075] [2020-09-25 10:47:06,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 10:47:06,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:47:06,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 10:47:06,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-09-25 10:47:06,461 INFO L87 Difference]: Start difference. First operand 2629 states and 2986 transitions. Second operand 13 states. [2020-09-25 10:47:09,932 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-09-25 10:47:10,717 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-09-25 10:47:10,879 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-09-25 10:47:11,014 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-25 10:47:11,246 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-09-25 10:47:16,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:47:16,490 INFO L93 Difference]: Finished difference Result 7076 states and 8230 transitions. [2020-09-25 10:47:16,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-09-25 10:47:16,491 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 183 [2020-09-25 10:47:16,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:47:16,512 INFO L225 Difference]: With dead ends: 7076 [2020-09-25 10:47:16,512 INFO L226 Difference]: Without dead ends: 4022 [2020-09-25 10:47:16,522 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=325, Invalid=1157, Unknown=0, NotChecked=0, Total=1482 [2020-09-25 10:47:16,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4022 states. [2020-09-25 10:47:16,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4022 to 3510. [2020-09-25 10:47:16,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3510 states. [2020-09-25 10:47:16,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3510 states to 3510 states and 3973 transitions. [2020-09-25 10:47:16,742 INFO L78 Accepts]: Start accepts. Automaton has 3510 states and 3973 transitions. Word has length 183 [2020-09-25 10:47:16,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:47:16,743 INFO L479 AbstractCegarLoop]: Abstraction has 3510 states and 3973 transitions. [2020-09-25 10:47:16,743 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 10:47:16,743 INFO L276 IsEmpty]: Start isEmpty. Operand 3510 states and 3973 transitions. [2020-09-25 10:47:16,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-09-25 10:47:16,754 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:47:16,755 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:47:16,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:47:16,756 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:47:16,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:47:16,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1921012257, now seen corresponding path program 1 times [2020-09-25 10:47:16,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:47:16,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1224967992] [2020-09-25 10:47:16,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:47:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:47:16,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:47:17,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking...