/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=0.4 --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 14:08:34,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:08:34,707 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:08:34,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:08:34,734 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:08:34,735 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:08:34,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:08:34,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:08:34,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:08:34,742 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:08:34,743 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:08:34,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:08:34,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:08:34,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:08:34,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:08:34,748 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:08:34,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:08:34,750 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:08:34,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:08:34,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:08:34,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:08:34,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:08:34,759 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:08:34,760 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:08:34,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:08:34,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:08:34,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:08:34,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:08:34,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:08:34,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:08:34,767 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:08:34,768 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:08:34,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:08:34,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:08:34,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:08:34,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:08:34,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:08:34,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:08:34,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:08:34,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:08:34,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:08:34,776 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 14:08:34,810 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:08:34,810 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:08:34,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:08:34,812 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:08:34,812 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:08:34,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:08:34,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:08:34,813 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:08:34,813 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:08:34,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:08:34,814 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:08:34,814 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:08:34,814 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:08:34,814 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:08:34,814 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:08:34,815 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:08:34,816 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:08:34,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:08:34,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:08:34,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:08:34,817 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:08:34,817 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:08:34,817 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:08:34,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:08:34,818 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:08:34,818 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:08:34,818 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-25 14:08:34,818 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true; [2020-09-25 14:08:35,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:08:35,308 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:08:35,313 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:08:35,314 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:08:35,315 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:08:35,316 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-25 14:08:35,412 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a00e706bc/6462a1cc6aaa4ed29f4a8c54236d734f/FLAG028d77512 [2020-09-25 14:08:36,303 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:08:36,304 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-25 14:08:36,344 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a00e706bc/6462a1cc6aaa4ed29f4a8c54236d734f/FLAG028d77512 [2020-09-25 14:08:36,781 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a00e706bc/6462a1cc6aaa4ed29f4a8c54236d734f [2020-09-25 14:08:36,795 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:08:36,801 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:08:36,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:08:36,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:08:36,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:08:36,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:08:36" (1/1) ... [2020-09-25 14:08:36,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f39ff7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:08:36, skipping insertion in model container [2020-09-25 14:08:36,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:08:36" (1/1) ... [2020-09-25 14:08:36,822 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:08:36,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:08:38,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:08:38,393 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:08:38,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:08:38,781 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:08:38,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:08:38 WrapperNode [2020-09-25 14:08:38,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:08:38,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:08:38,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:08:38,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:08:38,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:08:38" (1/1) ... [2020-09-25 14:08:38,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:08:38" (1/1) ... [2020-09-25 14:08:38,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:08:38" (1/1) ... [2020-09-25 14:08:38,886 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:08:38" (1/1) ... [2020-09-25 14:08:38,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:08:38" (1/1) ... [2020-09-25 14:08:38,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:08:38" (1/1) ... [2020-09-25 14:08:39,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:08:38" (1/1) ... [2020-09-25 14:08:39,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:08:39,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:08:39,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:08:39,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:08:39,036 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:08:38" (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 14:08:39,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:08:39,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:08:39,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~~netdev_tx_t~0 [2020-09-25 14:08:39,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-09-25 14:08:39,161 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-09-25 14:08:39,162 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-09-25 14:08:39,163 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2020-09-25 14:08:39,163 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2020-09-25 14:08:39,163 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_shared [2020-09-25 14:08:39,164 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_share_check [2020-09-25 14:08:39,165 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2020-09-25 14:08:39,165 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2020-09-25 14:08:39,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_cow [2020-09-25 14:08:39,166 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cow [2020-09-25 14:08:39,166 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 14:08:39,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_zalloc [2020-09-25 14:08:39,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 14:08:39,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-25 14:08:39,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-25 14:08:39,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-25 14:08:39,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-25 14:08:39,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-25 14:08:39,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-25 14:08:39,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-25 14:08:39,171 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-09-25 14:08:39,171 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-09-25 14:08:39,171 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_dormant_off [2020-09-25 14:08:39,171 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2020-09-25 14:08:39,171 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_type_trans [2020-09-25 14:08:39,171 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_connect_disconnect [2020-09-25 14:08:39,172 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_connected [2020-09-25 14:08:39,172 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_disconnected [2020-09-25 14:08:39,172 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_data_indication [2020-09-25 14:08:39,172 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_data_transmit [2020-09-25 14:08:39,172 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_xmit [2020-09-25 14:08:39,173 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_open [2020-09-25 14:08:39,173 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_close [2020-09-25 14:08:39,173 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_rx [2020-09-25 14:08:39,173 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_ioctl [2020-09-25 14:08:39,173 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_init [2020-09-25 14:08:39,173 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_exit [2020-09-25 14:08:39,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_hdlc_proto_1 [2020-09-25 14:08:39,174 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:08:39,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-09-25 14:08:39,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-09-25 14:08:39,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-09-25 14:08:39,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-09-25 14:08:39,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-09-25 14:08:39,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_12 [2020-09-25 14:08:39,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2020-09-25 14:08:39,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_14 [2020-09-25 14:08:39,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-09-25 14:08:39,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-25 14:08:39,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-09-25 14:08:39,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-09-25 14:08:39,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-09-25 14:08:39,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-25 14:08:39,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-25 14:08:39,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-25 14:08:39,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-25 14:08:39,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-09-25 14:08:39,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 14:08:39,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-09-25 14:08:39,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-09-25 14:08:39,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-09-25 14:08:39,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-09-25 14:08:39,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-09-25 14:08:39,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 14:08:39,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2020-09-25 14:08:39,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2020-09-25 14:08:39,180 INFO L138 BoogieDeclarations]: Found implementation of procedure attach_hdlc_protocol [2020-09-25 14:08:39,181 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2020-09-25 14:08:39,181 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_connect_request [2020-09-25 14:08:39,182 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_received [2020-09-25 14:08:39,183 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_request [2020-09-25 14:08:39,183 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_disconnect_request [2020-09-25 14:08:39,183 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_register [2020-09-25 14:08:39,183 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_unregister [2020-09-25 14:08:39,183 INFO L138 BoogieDeclarations]: Found implementation of procedure linkwatch_fire_event [2020-09-25 14:08:39,184 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-09-25 14:08:39,184 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2020-09-25 14:08:39,184 INFO L138 BoogieDeclarations]: Found implementation of procedure register_hdlc_protocol [2020-09-25 14:08:39,185 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2020-09-25 14:08:39,185 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-09-25 14:08:39,185 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-09-25 14:08:39,186 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-09-25 14:08:39,186 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_hdlc_protocol [2020-09-25 14:08:39,186 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-25 14:08:39,186 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-25 14:08:39,186 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:08:39,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-25 14:08:39,187 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-09-25 14:08:39,187 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2020-09-25 14:08:39,187 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-09-25 14:08:39,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:08:39,187 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2020-09-25 14:08:39,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-09-25 14:08:39,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-09-25 14:08:39,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-09-25 14:08:39,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-09-25 14:08:39,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-09-25 14:08:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2020-09-25 14:08:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2020-09-25 14:08:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2020-09-25 14:08:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:08:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2020-09-25 14:08:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure skb_shared [2020-09-25 14:08:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure skb_share_check [2020-09-25 14:08:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:08:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-09-25 14:08:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-09-25 14:08:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-09-25 14:08:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2020-09-25 14:08:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2020-09-25 14:08:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:08:39,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_12 [2020-09-25 14:08:39,192 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_cow [2020-09-25 14:08:39,193 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cow [2020-09-25 14:08:39,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-09-25 14:08:39,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-09-25 14:08:39,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-09-25 14:08:39,194 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:08:39,194 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 14:08:39,194 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:08:39,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 14:08:39,196 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 14:08:39,196 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 14:08:39,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_zalloc [2020-09-25 14:08:39,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:08:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-25 14:08:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 14:08:39,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-25 14:08:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-25 14:08:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-25 14:08:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-25 14:08:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-25 14:08:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-25 14:08:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_hdlc_proto_1 [2020-09-25 14:08:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-09-25 14:08:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2020-09-25 14:08:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-09-25 14:08:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2020-09-25 14:08:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_14 [2020-09-25 14:08:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure linkwatch_fire_event [2020-09-25 14:08:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure netif_dormant_off [2020-09-25 14:08:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-09-25 14:08:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure register_hdlc_protocol [2020-09-25 14:08:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_hdlc_protocol [2020-09-25 14:08:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2020-09-25 14:08:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure attach_hdlc_protocol [2020-09-25 14:08:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_register [2020-09-25 14:08:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_unregister [2020-09-25 14:08:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_connect_request [2020-09-25 14:08:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_disconnect_request [2020-09-25 14:08:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_request [2020-09-25 14:08:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_received [2020-09-25 14:08:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure x25_type_trans [2020-09-25 14:08:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:08:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure x25_ioctl [2020-09-25 14:08:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure x25_connect_disconnect [2020-09-25 14:08:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure x25_connected [2020-09-25 14:08:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure x25_disconnected [2020-09-25 14:08:39,216 INFO L130 BoogieDeclarations]: Found specification of procedure x25_data_indication [2020-09-25 14:08:39,216 INFO L130 BoogieDeclarations]: Found specification of procedure x25_data_transmit [2020-09-25 14:08:39,216 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~~netdev_tx_t~0 [2020-09-25 14:08:39,216 INFO L130 BoogieDeclarations]: Found specification of procedure x25_xmit [2020-09-25 14:08:39,216 INFO L130 BoogieDeclarations]: Found specification of procedure x25_open [2020-09-25 14:08:39,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:08:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure x25_close [2020-09-25 14:08:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure x25_rx [2020-09-25 14:08:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-09-25 14:08:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure mod_init [2020-09-25 14:08:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure mod_exit [2020-09-25 14:08:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 14:08:39,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 14:08:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:08:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-09-25 14:08:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-25 14:08:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-09-25 14:08:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-09-25 14:08:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-09-25 14:08:39,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-25 14:08:39,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-25 14:08:39,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-25 14:08:39,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-25 14:08:39,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-09-25 14:08:39,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-09-25 14:08:39,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-09-25 14:08:39,220 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-25 14:08:39,220 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:08:39,220 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-25 14:08:39,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:08:39,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 14:08:39,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:08:39,925 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-25 14:08:40,992 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:08:40,993 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-25 14:08:41,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:08:41 BoogieIcfgContainer [2020-09-25 14:08:41,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:08:41,015 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:08:41,015 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:08:41,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:08:41,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:08:36" (1/3) ... [2020-09-25 14:08:41,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@461d90cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:08:41, skipping insertion in model container [2020-09-25 14:08:41,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:08:38" (2/3) ... [2020-09-25 14:08:41,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@461d90cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:08:41, skipping insertion in model container [2020-09-25 14:08:41,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:08:41" (3/3) ... [2020-09-25 14:08:41,027 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 14:08:41,040 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:08:41,055 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:08:41,083 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:08:41,129 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:08:41,129 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:08:41,129 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:08:41,130 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:08:41,130 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:08:41,131 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:08:41,131 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:08:41,131 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:08:41,188 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states. [2020-09-25 14:08:41,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-09-25 14:08:41,221 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:08:41,222 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 14:08:41,223 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:08:41,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:08:41,233 INFO L82 PathProgramCache]: Analyzing trace with hash 2033327711, now seen corresponding path program 1 times [2020-09-25 14:08:41,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:08:41,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [508246683] [2020-09-25 14:08:41,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:08:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:08:41,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:08:42,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:08:43,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:08:43,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-25 14:08:43,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:08:43,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1415 [2020-09-25 14:08:43,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:08:43,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:08:43,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:08:43,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 14:08:43,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 14:08:43,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 14:08:43,512 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-09-25 14:08:43,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:08:43,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:08:43,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:08:43,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:08:43,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 14:08:43,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:08:43,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 14:08:43,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:08:43,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:08:43,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:08:43,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:08:43,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:08:43,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:08:43,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 14:08:43,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:08:43,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:08:43,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:08:43,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 14:08:43,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:08:43,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 14:08:43,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:08:43,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:08:43,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:08:43,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:08:43,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:08:43,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:08:43,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:08:43,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:08:43,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:08:43,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:08:43,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:08:43,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:08:43,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 14:08:43,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:08:43,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:08:43,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:08:43,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:08:43,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:08:43,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:08:43,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 14:08:43,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:08:43,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:08:43,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:08:43,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:08:43,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:08:43,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 14:08:43,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:08:43,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:08:43,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:08:43,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:08:43,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:08:43,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:08:43,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 14:08:43,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:08:43,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:08:43,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:08:43,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 14:08:43,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:08:43,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 14:08:43,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:08:43,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:08:43,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:08:43,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:08:43,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:08:43,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:08:43,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:08:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:08:44,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:08:44,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:08:44,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:08:44,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:08:44,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 14:08:44,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:08:44,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:08:44,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:08:44,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:08:44,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:08:44,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:08:44,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 14:08:44,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:08:44,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:08:44,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:08:44,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 14:08:44,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:08:44,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 14:08:44,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:08:44,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:08:44,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:08:44,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:08:44,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 14:08:44,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:08:44,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:08:44,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:08:44,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:08:44,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:08:44,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:08:44,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:08:44,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 14:08:44,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:08:44,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:08:44,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:08:44,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:08:44,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:08:44,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:08:44,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-25 14:08:44,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:08:44,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:08:44,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:08:44,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:08:44,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:08:44,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 14:08:44,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:08:44,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:08:44,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:08:44,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:08:44,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:08:44,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:08:44,346 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 14:08:44,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [508246683] [2020-09-25 14:08:44,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:08:44,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 14:08:44,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966903544] [2020-09-25 14:08:44,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 14:08:44,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:08:44,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 14:08:44,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:08:44,380 INFO L87 Difference]: Start difference. First operand 890 states. Second operand 10 states. [2020-09-25 14:08:44,519 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-09-25 14:08:45,144 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-09-25 14:08:46,175 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 102 [2020-09-25 14:08:46,702 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-25 14:08:49,072 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-09-25 14:08:54,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:08:54,227 INFO L93 Difference]: Finished difference Result 2288 states and 2752 transitions. [2020-09-25 14:08:54,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 14:08:54,229 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 106 [2020-09-25 14:08:54,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:08:54,264 INFO L225 Difference]: With dead ends: 2288 [2020-09-25 14:08:54,265 INFO L226 Difference]: Without dead ends: 1575 [2020-09-25 14:08:54,277 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 14:08:54,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1575 states. [2020-09-25 14:08:54,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1575 to 1379. [2020-09-25 14:08:54,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1379 states. [2020-09-25 14:08:54,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 1561 transitions. [2020-09-25 14:08:54,523 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 1561 transitions. Word has length 106 [2020-09-25 14:08:54,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:08:54,524 INFO L479 AbstractCegarLoop]: Abstraction has 1379 states and 1561 transitions. [2020-09-25 14:08:54,524 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 14:08:54,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 1561 transitions. [2020-09-25 14:08:54,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 14:08:54,531 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:08:54,532 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 14:08:54,532 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:08:54,533 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:08:54,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:08:54,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1002477034, now seen corresponding path program 1 times [2020-09-25 14:08:54,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:08:54,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1334565001] [2020-09-25 14:08:54,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:08:54,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:08:54,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:08:54,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:08:54,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:08:56,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:08:56,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:08:59,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:08:59,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-25 14:08:59,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:08:59,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-09-25 14:08:59,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:08:59,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:08:59,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:08:59,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-09-25 14:08:59,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-25 14:08:59,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:08:59,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:08:59,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:08:59,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:08:59,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:08:59,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 14:08:59,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:08:59,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 14:08:59,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:08:59,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:08:59,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:08:59,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:08:59,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:08:59,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:09:00,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 14:09:00,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:09:00,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:00,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:09:00,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 14:09:00,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:09:00,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 14:09:00,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:09:00,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:09:00,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:09:00,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:09:00,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:09:00,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:09:00,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:09:00,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:09:00,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:00,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:09:00,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:09:00,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:09:00,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 14:09:00,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:09:00,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:09:00,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:09:00,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:09:00,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:09:00,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:09:00,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 14:09:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:09:00,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:00,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:09:00,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:09:00,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:09:00,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 14:09:00,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:09:00,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:09:00,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:09:00,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:09:00,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:09:00,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:09:00,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 14:09:00,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:09:00,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:00,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:09:00,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 14:09:00,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:09:00,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 14:09:00,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:09:00,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:09:00,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:09:00,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:09:00,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:09:00,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:09:00,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:09:00,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:09:00,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:00,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:09:00,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:09:00,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:09:00,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 14:09:00,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:09:00,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:09:00,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:09:00,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:09:00,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:09:00,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:09:00,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 14:09:00,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:09:00,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:00,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:00,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:09:00,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 14:09:00,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:09:00,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-09-25 14:09:00,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:09:00,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:09:00,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:09:00,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:09:00,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 14:09:00,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:09:00,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:09:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:09:00,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:00,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:09:00,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:09:00,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:09:00,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 14:09:00,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:09:00,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:09:00,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:09:00,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:09:00,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:09:00,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:09:00,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 14:09:00,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:09:00,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:00,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:09:00,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:09:00,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:09:00,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 14:09:00,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:09:00,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:09:00,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:09:00,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:09:00,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:09:00,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:09:00,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 14:09:00,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:09:00,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:00,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:00,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:09:00,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 14:09:00,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:09:00,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 14:09:00,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:09:00,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:09:00,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:09:00,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:09:00,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:09:00,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:09:00,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:09:00,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:09:00,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:00,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:09:00,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 14:09:00,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:09:00,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 14:09:00,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:09:00,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:09:00,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:09:00,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:09:00,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:09:00,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:09:00,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 14:09:00,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:09:00,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:00,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:09:00,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 14:09:00,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:09:00,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 14:09:00,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:09:00,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:09:00,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:09:00,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:09:00,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:09:00,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:09:00,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:09:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:09:00,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:00,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:09:00,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:09:00,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:09:00,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:09:00,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:09:00,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:09:00,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:09:00,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:09:00,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:09:00,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:09:00,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 14:09:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:09:00,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:00,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:09:00,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:09:00,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:09:00,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 14:09:00,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:09:00,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:09:00,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:09:00,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:09:00,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:09:00,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:09:00,990 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 14:09:00,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1334565001] [2020-09-25 14:09:00,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:09:00,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 14:09:00,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289345345] [2020-09-25 14:09:00,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 14:09:00,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:09:00,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 14:09:00,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:09:00,996 INFO L87 Difference]: Start difference. First operand 1379 states and 1561 transitions. Second operand 10 states. [2020-09-25 14:09:01,417 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-09-25 14:09:07,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:09:07,992 INFO L93 Difference]: Finished difference Result 3708 states and 4430 transitions. [2020-09-25 14:09:07,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 14:09:07,993 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 171 [2020-09-25 14:09:07,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:09:08,018 INFO L225 Difference]: With dead ends: 3708 [2020-09-25 14:09:08,018 INFO L226 Difference]: Without dead ends: 2992 [2020-09-25 14:09:08,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2020-09-25 14:09:08,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2992 states. [2020-09-25 14:09:08,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2992 to 2629. [2020-09-25 14:09:08,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2629 states. [2020-09-25 14:09:08,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2629 states to 2629 states and 2986 transitions. [2020-09-25 14:09:08,248 INFO L78 Accepts]: Start accepts. Automaton has 2629 states and 2986 transitions. Word has length 171 [2020-09-25 14:09:08,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:09:08,250 INFO L479 AbstractCegarLoop]: Abstraction has 2629 states and 2986 transitions. [2020-09-25 14:09:08,250 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 14:09:08,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2629 states and 2986 transitions. [2020-09-25 14:09:08,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-09-25 14:09:08,263 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:09:08,264 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 14:09:08,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:09:08,265 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:09:08,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:09:08,265 INFO L82 PathProgramCache]: Analyzing trace with hash -544183953, now seen corresponding path program 1 times [2020-09-25 14:09:08,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:09:08,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1927718250] [2020-09-25 14:09:08,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:09:08,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:09:08,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:08,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:08,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:09,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:13,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:09:13,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-09-25 14:09:13,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:09:13,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-25 14:09:13,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:09:13,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:09:13,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:09:13,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 14:09:13,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 14:09:13,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:09:13,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:09:13,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:09:13,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:13,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:09:13,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 14:09:13,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:09:13,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-25 14:09:13,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:09:13,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:09:13,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:09:13,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:09:13,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 14:09:13,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:09:13,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 14:09:13,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:09:13,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:13,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:09:13,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 14:09:13,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:09:13,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 14:09:13,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:09:13,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:09:13,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:09:13,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:09:13,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 14:09:13,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:09:13,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:09:13,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:09:13,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:13,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:09:13,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:09:13,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:09:13,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 14:09:13,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:09:13,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:09:13,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:09:13,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:09:13,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:09:13,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:09:13,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 14:09:13,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:09:13,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:13,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:09:13,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:09:13,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:09:13,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 14:09:13,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:09:13,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:09:13,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:09:13,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:09:13,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:09:13,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:09:13,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 14:09:13,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:09:14,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:14,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:09:14,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 14:09:14,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:09:14,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 14:09:14,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:09:14,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:09:14,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:09:14,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:09:14,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 14:09:14,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:09:14,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:09:14,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:09:14,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:14,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:09:14,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:09:14,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:09:14,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 14:09:14,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:09:14,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:09:14,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:09:14,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:09:14,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:09:14,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:09:14,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 14:09:14,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:09:14,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:14,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:09:14,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-25 14:09:14,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:09:14,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 401 [2020-09-25 14:09:14,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:09:14,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:09:14,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:09:14,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:09:14,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 14:09:14,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:09:14,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:09:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:09:14,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:14,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:09:14,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:09:14,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:09:14,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 14:09:14,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:09:14,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:09:14,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:09:14,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:09:14,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:09:14,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:09:14,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 14:09:14,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:09:14,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:14,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:09:14,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:09:14,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:09:14,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 14:09:14,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:09:14,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:09:14,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:09:14,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:09:14,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:09:14,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:09:14,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 14:09:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:09:14,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:14,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:09:14,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 14:09:14,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:09:14,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 14:09:14,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:09:14,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:09:14,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:09:14,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:09:14,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 14:09:14,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:09:14,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:09:14,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:09:14,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:14,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:09:14,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 14:09:14,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:09:14,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 14:09:14,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:09:14,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:09:14,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:09:14,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:09:14,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:09:14,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:09:14,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 14:09:14,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:09:14,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:14,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:09:14,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:09:14,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:09:14,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 14:09:14,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:09:14,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:09:14,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:09:14,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 14:09:14,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:09:14,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:09:14,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:09:14,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:09:14,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:14,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:09:14,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:09:14,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:09:14,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 14:09:14,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:09:14,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:09:14,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:09:14,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:09:14,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:09:14,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:09:15,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 14:09:15,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:09:15,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:09:15,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:09:15,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:09:15,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:09:15,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 14:09:15,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:09:15,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 14:09:15,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:09:15,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:09:15,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:09:15,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:09:15,101 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 14:09:15,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1927718250] [2020-09-25 14:09:15,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:09:15,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 14:09:15,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781811186] [2020-09-25 14:09:15,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 14:09:15,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:09:15,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 14:09:15,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-09-25 14:09:15,104 INFO L87 Difference]: Start difference. First operand 2629 states and 2986 transitions. Second operand 13 states. [2020-09-25 14:09:15,613 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-09-25 14:09:15,810 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-09-25 14:09:16,404 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-25 14:09:19,127 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-09-25 14:09:19,965 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-09-25 14:09:20,118 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-09-25 14:09:20,268 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-09-25 14:09:20,476 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 114