/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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 [2020-09-24 20:03:24,852 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:03:24,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:03:24,900 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:03:24,901 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:03:24,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:03:24,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:03:24,914 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:03:24,916 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:03:24,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:03:24,920 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:03:24,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:03:24,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:03:24,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:03:24,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:03:24,929 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:03:24,930 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:03:24,932 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:03:24,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:03:24,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:03:24,944 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:03:24,945 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:03:24,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:03:24,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:03:24,959 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:03:24,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:03:24,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:03:24,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:03:24,966 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:03:24,971 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:03:24,971 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:03:24,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:03:24,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:03:24,975 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:03:24,976 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:03:24,977 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:03:24,977 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:03:24,978 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:03:24,978 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:03:24,979 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:03:24,980 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:03:24,981 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 [2020-09-24 20:03:25,022 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:03:25,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:03:25,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:03:25,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:03:25,025 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:03:25,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:03:25,026 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:03:25,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:03:25,026 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:03:25,026 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:03:25,027 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:03:25,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:03:25,028 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:03:25,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:03:25,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:03:25,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:03:25,029 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:03:25,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:03:25,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:03:25,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:03:25,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:03:25,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:03:25,030 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:03:25,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:03:25,030 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:03:25,031 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:03:25,031 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 20:03:25,031 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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 20:03:25,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:03:25,514 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:03:25,519 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:03:25,521 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:03:25,521 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:03:25,523 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-24 20:03:25,605 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a066ccae0/69db962dd90f40e7bcfaaf093a6a9f3d/FLAGe5d652c4d [2020-09-24 20:03:26,491 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:03:26,492 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-24 20:03:26,531 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a066ccae0/69db962dd90f40e7bcfaaf093a6a9f3d/FLAGe5d652c4d [2020-09-24 20:03:26,990 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a066ccae0/69db962dd90f40e7bcfaaf093a6a9f3d [2020-09-24 20:03:27,006 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:03:27,012 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:03:27,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:03:27,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:03:27,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:03:27,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:03:26" (1/1) ... [2020-09-24 20:03:27,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f15c313 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:27, skipping insertion in model container [2020-09-24 20:03:27,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:03:26" (1/1) ... [2020-09-24 20:03:27,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:03:27,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:03:28,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:03:28,491 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:03:28,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:03:28,916 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:03:28,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:28 WrapperNode [2020-09-24 20:03:28,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:03:28,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:03:28,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:03:28,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:03:28,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:28" (1/1) ... [2020-09-24 20:03:28,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:28" (1/1) ... [2020-09-24 20:03:29,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:28" (1/1) ... [2020-09-24 20:03:29,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:28" (1/1) ... [2020-09-24 20:03:29,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:28" (1/1) ... [2020-09-24 20:03:29,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:28" (1/1) ... [2020-09-24 20:03:29,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:28" (1/1) ... [2020-09-24 20:03:29,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:03:29,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:03:29,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:03:29,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:03:29,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:28" (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 [2020-09-24 20:03:29,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:03:29,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:03:29,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~~netdev_tx_t~0 [2020-09-24 20:03:29,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-09-24 20:03:29,227 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-09-24 20:03:29,227 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-09-24 20:03:29,228 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2020-09-24 20:03:29,228 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2020-09-24 20:03:29,229 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_shared [2020-09-24 20:03:29,229 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_share_check [2020-09-24 20:03:29,229 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2020-09-24 20:03:29,229 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2020-09-24 20:03:29,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_cow [2020-09-24 20:03:29,230 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cow [2020-09-24 20:03:29,230 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 20:03:29,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_zalloc [2020-09-24 20:03:29,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 20:03:29,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-24 20:03:29,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-24 20:03:29,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-24 20:03:29,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 20:03:29,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-24 20:03:29,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-24 20:03:29,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-24 20:03:29,232 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-09-24 20:03:29,232 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-09-24 20:03:29,232 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_dormant_off [2020-09-24 20:03:29,232 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2020-09-24 20:03:29,232 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_type_trans [2020-09-24 20:03:29,232 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_connect_disconnect [2020-09-24 20:03:29,233 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_connected [2020-09-24 20:03:29,233 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_disconnected [2020-09-24 20:03:29,233 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_data_indication [2020-09-24 20:03:29,233 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_data_transmit [2020-09-24 20:03:29,233 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_xmit [2020-09-24 20:03:29,234 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_open [2020-09-24 20:03:29,234 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_close [2020-09-24 20:03:29,234 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_rx [2020-09-24 20:03:29,234 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_ioctl [2020-09-24 20:03:29,234 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_init [2020-09-24 20:03:29,234 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_exit [2020-09-24 20:03:29,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_hdlc_proto_1 [2020-09-24 20:03:29,235 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:03:29,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-09-24 20:03:29,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-09-24 20:03:29,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-09-24 20:03:29,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-09-24 20:03:29,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-09-24 20:03:29,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_12 [2020-09-24 20:03:29,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2020-09-24 20:03:29,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_14 [2020-09-24 20:03:29,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-09-24 20:03:29,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-24 20:03:29,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-09-24 20:03:29,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-09-24 20:03:29,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-09-24 20:03:29,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-24 20:03:29,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-24 20:03:29,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-24 20:03:29,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-24 20:03:29,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-09-24 20:03:29,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 20:03:29,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-09-24 20:03:29,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-09-24 20:03:29,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-09-24 20:03:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-09-24 20:03:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-09-24 20:03:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 20:03:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2020-09-24 20:03:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2020-09-24 20:03:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure attach_hdlc_protocol [2020-09-24 20:03:29,246 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2020-09-24 20:03:29,246 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_connect_request [2020-09-24 20:03:29,246 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_received [2020-09-24 20:03:29,246 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_request [2020-09-24 20:03:29,246 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_disconnect_request [2020-09-24 20:03:29,247 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_register [2020-09-24 20:03:29,247 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_unregister [2020-09-24 20:03:29,247 INFO L138 BoogieDeclarations]: Found implementation of procedure linkwatch_fire_event [2020-09-24 20:03:29,247 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-09-24 20:03:29,247 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2020-09-24 20:03:29,247 INFO L138 BoogieDeclarations]: Found implementation of procedure register_hdlc_protocol [2020-09-24 20:03:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2020-09-24 20:03:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-09-24 20:03:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-09-24 20:03:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-09-24 20:03:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_hdlc_protocol [2020-09-24 20:03:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 20:03:29,249 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-24 20:03:29,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:03:29,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-24 20:03:29,251 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-09-24 20:03:29,251 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2020-09-24 20:03:29,251 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-09-24 20:03:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:03:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2020-09-24 20:03:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-09-24 20:03:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-09-24 20:03:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-09-24 20:03:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-09-24 20:03:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-09-24 20:03:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2020-09-24 20:03:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2020-09-24 20:03:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2020-09-24 20:03:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:03:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2020-09-24 20:03:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure skb_shared [2020-09-24 20:03:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure skb_share_check [2020-09-24 20:03:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:03:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-09-24 20:03:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-09-24 20:03:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-09-24 20:03:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2020-09-24 20:03:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2020-09-24 20:03:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:03:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_12 [2020-09-24 20:03:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_cow [2020-09-24 20:03:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cow [2020-09-24 20:03:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-09-24 20:03:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-09-24 20:03:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-09-24 20:03:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:03:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 20:03:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:03:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-24 20:03:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 20:03:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 20:03:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_zalloc [2020-09-24 20:03:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:03:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-24 20:03:29,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 20:03:29,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-24 20:03:29,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-24 20:03:29,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-24 20:03:29,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 20:03:29,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-24 20:03:29,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-24 20:03:29,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_hdlc_proto_1 [2020-09-24 20:03:29,261 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-09-24 20:03:29,261 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2020-09-24 20:03:29,261 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-09-24 20:03:29,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2020-09-24 20:03:29,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_14 [2020-09-24 20:03:29,261 INFO L130 BoogieDeclarations]: Found specification of procedure linkwatch_fire_event [2020-09-24 20:03:29,262 INFO L130 BoogieDeclarations]: Found specification of procedure netif_dormant_off [2020-09-24 20:03:29,262 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-09-24 20:03:29,262 INFO L130 BoogieDeclarations]: Found specification of procedure register_hdlc_protocol [2020-09-24 20:03:29,262 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_hdlc_protocol [2020-09-24 20:03:29,262 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2020-09-24 20:03:29,262 INFO L130 BoogieDeclarations]: Found specification of procedure attach_hdlc_protocol [2020-09-24 20:03:29,263 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_register [2020-09-24 20:03:29,263 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_unregister [2020-09-24 20:03:29,264 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_connect_request [2020-09-24 20:03:29,264 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_disconnect_request [2020-09-24 20:03:29,264 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_request [2020-09-24 20:03:29,264 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_received [2020-09-24 20:03:29,264 INFO L130 BoogieDeclarations]: Found specification of procedure x25_type_trans [2020-09-24 20:03:29,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:03:29,264 INFO L130 BoogieDeclarations]: Found specification of procedure x25_ioctl [2020-09-24 20:03:29,265 INFO L130 BoogieDeclarations]: Found specification of procedure x25_connect_disconnect [2020-09-24 20:03:29,265 INFO L130 BoogieDeclarations]: Found specification of procedure x25_connected [2020-09-24 20:03:29,265 INFO L130 BoogieDeclarations]: Found specification of procedure x25_disconnected [2020-09-24 20:03:29,265 INFO L130 BoogieDeclarations]: Found specification of procedure x25_data_indication [2020-09-24 20:03:29,265 INFO L130 BoogieDeclarations]: Found specification of procedure x25_data_transmit [2020-09-24 20:03:29,265 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~~netdev_tx_t~0 [2020-09-24 20:03:29,265 INFO L130 BoogieDeclarations]: Found specification of procedure x25_xmit [2020-09-24 20:03:29,267 INFO L130 BoogieDeclarations]: Found specification of procedure x25_open [2020-09-24 20:03:29,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:03:29,267 INFO L130 BoogieDeclarations]: Found specification of procedure x25_close [2020-09-24 20:03:29,267 INFO L130 BoogieDeclarations]: Found specification of procedure x25_rx [2020-09-24 20:03:29,267 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-09-24 20:03:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure mod_init [2020-09-24 20:03:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure mod_exit [2020-09-24 20:03:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 20:03:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 20:03:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:03:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-09-24 20:03:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-24 20:03:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-09-24 20:03:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-09-24 20:03:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-09-24 20:03:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-24 20:03:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-24 20:03:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-24 20:03:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-24 20:03:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-09-24 20:03:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-09-24 20:03:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-09-24 20:03:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-24 20:03:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:03:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 20:03:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:03:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 20:03:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:03:29,828 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-24 20:03:30,866 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:03:30,866 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-24 20:03:30,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:03:30 BoogieIcfgContainer [2020-09-24 20:03:30,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:03:30,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:03:30,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:03:30,884 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:03:30,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:03:26" (1/3) ... [2020-09-24 20:03:30,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15423aa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:03:30, skipping insertion in model container [2020-09-24 20:03:30,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:28" (2/3) ... [2020-09-24 20:03:30,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15423aa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:03:30, skipping insertion in model container [2020-09-24 20:03:30,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:03:30" (3/3) ... [2020-09-24 20:03:30,889 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 [2020-09-24 20:03:30,900 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:03:30,912 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:03:30,937 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:03:30,974 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:03:30,974 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:03:30,975 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:03:30,975 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:03:30,975 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:03:30,975 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:03:30,975 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:03:30,975 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:03:31,016 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states. [2020-09-24 20:03:31,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-09-24 20:03:31,033 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:03:31,035 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] [2020-09-24 20:03:31,035 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:03:31,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:03:31,044 INFO L82 PathProgramCache]: Analyzing trace with hash 2033327711, now seen corresponding path program 1 times [2020-09-24 20:03:31,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:03:31,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2047580875] [2020-09-24 20:03:31,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:03:31,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:31,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:31,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:32,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:32,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 20:03:32,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:03:32,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1009 [2020-09-24 20:03:32,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:32,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:03:32,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-09-24 20:03:32,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:03:32,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 20:03:32,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:03:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:32,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:32,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:32,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-24 20:03:32,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:32,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-24 20:03:32,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:32,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:32,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:32,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:32,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:32,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-24 20:03:32,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:32,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:32,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:32,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 20:03:32,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:32,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 20:03:32,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:32,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:32,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:32,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:32,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:32,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:03:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:32,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:32,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:32,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:03:32,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:32,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 20:03:32,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:32,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:32,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:32,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:32,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:32,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 20:03:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:32,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:32,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:32,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:03:32,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:32,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 20:03:32,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:32,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:32,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:32,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:32,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:32,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-24 20:03:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:32,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:32,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:32,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 20:03:32,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:32,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 20:03:32,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:32,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:32,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:32,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:32,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:33,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:03:33,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:33,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:33,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:33,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:03:33,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:33,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 20:03:33,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:33,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:33,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:33,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:33,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:33,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 20:03:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:33,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:33,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:33,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 20:03:33,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:33,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 20:03:33,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:33,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:33,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 20:03:33,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:33,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:33,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:03:33,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:33,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:33,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:33,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:03:33,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:33,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 20:03:33,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:33,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:33,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:33,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:33,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:33,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-24 20:03:33,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:33,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:33,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:33,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:03:33,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:33,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 20:03:33,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:33,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:33,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 20:03:33,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:33,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:33,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:03:33,281 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2047580875] [2020-09-24 20:03:33,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:03:33,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 20:03:33,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726674908] [2020-09-24 20:03:33,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 20:03:33,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:03:33,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 20:03:33,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 20:03:33,315 INFO L87 Difference]: Start difference. First operand 890 states. Second operand 7 states. [2020-09-24 20:03:39,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:03:39,755 INFO L93 Difference]: Finished difference Result 2373 states and 2824 transitions. [2020-09-24 20:03:39,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 20:03:39,757 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 106 [2020-09-24 20:03:39,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:03:39,795 INFO L225 Difference]: With dead ends: 2373 [2020-09-24 20:03:39,795 INFO L226 Difference]: Without dead ends: 1687 [2020-09-24 20:03:39,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2020-09-24 20:03:39,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2020-09-24 20:03:40,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 1286. [2020-09-24 20:03:40,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1286 states. [2020-09-24 20:03:40,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 1428 transitions. [2020-09-24 20:03:40,089 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 1428 transitions. Word has length 106 [2020-09-24 20:03:40,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:03:40,090 INFO L479 AbstractCegarLoop]: Abstraction has 1286 states and 1428 transitions. [2020-09-24 20:03:40,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 20:03:40,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 1428 transitions. [2020-09-24 20:03:40,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-09-24 20:03:40,103 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:03:40,104 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:03:40,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:03:40,104 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:03:40,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:03:40,105 INFO L82 PathProgramCache]: Analyzing trace with hash 594820322, now seen corresponding path program 1 times [2020-09-24 20:03:40,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:03:40,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [953040271] [2020-09-24 20:03:40,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:03:40,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:40,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:40,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:40,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:41,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:41,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-24 20:03:41,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:03:41,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1015 [2020-09-24 20:03:41,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:41,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:03:41,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-09-24 20:03:41,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:03:41,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:41,425 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-09-24 20:03:41,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:03:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:41,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:41,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:41,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-24 20:03:41,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:41,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 20:03:41,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:41,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:41,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:41,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:41,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:41,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-24 20:03:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:41,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:41,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:41,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 20:03:41,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:41,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-24 20:03:41,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:41,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:41,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:41,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:41,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:41,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:03:41,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:41,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:41,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:41,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:03:41,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:41,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 20:03:41,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:41,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:41,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:41,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:41,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:41,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 20:03:41,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:41,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:41,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:41,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:03:41,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:41,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 20:03:41,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:41,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:41,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:41,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:41,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 65 [2020-09-24 20:03:41,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-24 20:03:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:41,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:41,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:41,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 20:03:41,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:41,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 20:03:41,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:41,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:41,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:41,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:41,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:41,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:03:41,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:41,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:41,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:41,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:03:41,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:41,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 20:03:41,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:41,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:41,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:41,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:41,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:41,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:03:41,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:41,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:42,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:42,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 20:03:42,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:42,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-24 20:03:42,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:42,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:03:42,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:42,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 20:03:42,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:42,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:03:42,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:42,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:42,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:42,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:03:42,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:42,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 20:03:42,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:42,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:42,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:42,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:42,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:42,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-09-24 20:03:42,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:42,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:42,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:42,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:03:42,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:42,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 20:03:42,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:42,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:42,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 20:03:42,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:42,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:42,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:03:42,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [953040271] [2020-09-24 20:03:42,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:03:42,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:03:42,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990322525] [2020-09-24 20:03:42,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:03:42,156 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:03:42,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:03:42,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:03:42,157 INFO L87 Difference]: Start difference. First operand 1286 states and 1428 transitions. Second operand 9 states. [2020-09-24 20:03:46,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:03:46,714 INFO L93 Difference]: Finished difference Result 2914 states and 3316 transitions. [2020-09-24 20:03:46,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 20:03:46,716 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 114 [2020-09-24 20:03:46,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:03:46,734 INFO L225 Difference]: With dead ends: 2914 [2020-09-24 20:03:46,734 INFO L226 Difference]: Without dead ends: 1684 [2020-09-24 20:03:46,739 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-24 20:03:46,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1684 states. [2020-09-24 20:03:46,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1684 to 1284. [2020-09-24 20:03:46,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1284 states. [2020-09-24 20:03:46,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1284 states to 1284 states and 1423 transitions. [2020-09-24 20:03:46,867 INFO L78 Accepts]: Start accepts. Automaton has 1284 states and 1423 transitions. Word has length 114 [2020-09-24 20:03:46,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:03:46,868 INFO L479 AbstractCegarLoop]: Abstraction has 1284 states and 1423 transitions. [2020-09-24 20:03:46,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:03:46,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1284 states and 1423 transitions. [2020-09-24 20:03:46,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-24 20:03:46,880 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:03:46,881 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:03:46,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:03:46,882 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:03:46,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:03:46,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1356551308, now seen corresponding path program 1 times [2020-09-24 20:03:46,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:03:46,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1181219394] [2020-09-24 20:03:46,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:03:46,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:47,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:47,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:47,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-09-24 20:03:47,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:47,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 774 [2020-09-24 20:03:47,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:47,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:03:47,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 20:03:47,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-24 20:03:47,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:48,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:03:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:48,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:48,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:48,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-24 20:03:48,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:48,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 20:03:48,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:48,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:48,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:48,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:48,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:48,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-24 20:03:48,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:48,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:48,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:48,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 20:03:48,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:48,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 20:03:48,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:48,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:48,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:48,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:48,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:48,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:03:48,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:48,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:48,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:48,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:03:48,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:48,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 20:03:48,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:48,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:48,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:48,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:48,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:48,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 20:03:48,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:48,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:48,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:48,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:03:48,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:48,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 20:03:48,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:48,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:48,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:48,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:48,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:48,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-24 20:03:48,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:48,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:48,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:48,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 20:03:48,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:48,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 20:03:48,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:48,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:03:48,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:48,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:03:48,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:48,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:03:48,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:48,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:48,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:48,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:03:48,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:48,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 20:03:48,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:48,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:03:48,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:48,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:03:48,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:48,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:03:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:48,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:48,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:48,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 20:03:48,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:48,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 20:03:48,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:48,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:03:48,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:48,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 20:03:48,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:48,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:03:48,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:48,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:48,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:48,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:03:48,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:48,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 20:03:48,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:48,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:48,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:48,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:48,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:48,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-24 20:03:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:48,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:48,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:48,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 20:03:48,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:48,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-09-24 20:03:48,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:48,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:03:48,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:48,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-24 20:03:48,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:48,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:03:48,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:48,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:48,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:48,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 20:03:48,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:48,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 20:03:48,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:48,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:48,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:48,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:48,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:48,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:03:48,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:48,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:48,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:48,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:03:48,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:48,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 20:03:48,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:48,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:48,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:48,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:48,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:48,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 20:03:48,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:48,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:48,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:48,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:03:48,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:48,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 20:03:48,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:48,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:48,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:48,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:48,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:48,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-24 20:03:48,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:48,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:48,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:48,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 20:03:48,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:48,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 20:03:48,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:48,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:48,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:48,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:48,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:48,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:03:48,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:48,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:49,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:49,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:03:49,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:49,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 20:03:49,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:49,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:49,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:49,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:49,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:49,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 20:03:49,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:49,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:49,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:49,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:03:49,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:49,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 20:03:49,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:49,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:49,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:49,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:49,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:49,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 20:03:49,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:49,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:49,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:49,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 20:03:49,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:49,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 20:03:49,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:49,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:03:49,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:49,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 20:03:49,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:49,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:03:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:49,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:49,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:49,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:03:49,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:49,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 20:03:49,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:49,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:49,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:49,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:49,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:49,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-24 20:03:49,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:49,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:49,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:49,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:03:49,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:49,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 20:03:49,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:49,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:03:49,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:49,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:03:49,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:49,373 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2020-09-24 20:03:49,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1181219394] [2020-09-24 20:03:49,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:03:49,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 20:03:49,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458285995] [2020-09-24 20:03:49,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 20:03:49,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:03:49,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 20:03:49,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-24 20:03:49,378 INFO L87 Difference]: Start difference. First operand 1284 states and 1423 transitions. Second operand 11 states. [2020-09-24 20:03:49,977 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-09-24 20:03:55,426 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-09-24 20:03:55,570 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-24 20:03:55,709 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-09-24 20:03:55,838 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-24 20:03:56,062 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-09-24 20:03:58,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:03:58,850 INFO L93 Difference]: Finished difference Result 4277 states and 4961 transitions. [2020-09-24 20:03:58,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 20:03:58,851 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 180 [2020-09-24 20:03:58,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:03:58,872 INFO L225 Difference]: With dead ends: 4277 [2020-09-24 20:03:58,872 INFO L226 Difference]: Without dead ends: 3030 [2020-09-24 20:03:58,879 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=171, Invalid=429, Unknown=0, NotChecked=0, Total=600 [2020-09-24 20:03:58,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2020-09-24 20:03:59,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2650. [2020-09-24 20:03:59,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2650 states. [2020-09-24 20:03:59,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2650 states to 2650 states and 3001 transitions. [2020-09-24 20:03:59,067 INFO L78 Accepts]: Start accepts. Automaton has 2650 states and 3001 transitions. Word has length 180 [2020-09-24 20:03:59,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:03:59,068 INFO L479 AbstractCegarLoop]: Abstraction has 2650 states and 3001 transitions. [2020-09-24 20:03:59,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 20:03:59,069 INFO L276 IsEmpty]: Start isEmpty. Operand 2650 states and 3001 transitions. [2020-09-24 20:03:59,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-09-24 20:03:59,082 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:03:59,083 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:03:59,083 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:03:59,084 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:03:59,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:03:59,084 INFO L82 PathProgramCache]: Analyzing trace with hash -766964387, now seen corresponding path program 1 times [2020-09-24 20:03:59,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:03:59,085 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [551357892] [2020-09-24 20:03:59,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:03:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:59,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:59,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:59,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:00,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:00,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 300 [2020-09-24 20:04:00,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:04:00,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1034 [2020-09-24 20:04:00,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:00,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:04:00,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 121 [2020-09-24 20:04:00,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 20:04:00,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:00,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:04:00,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:00,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:00,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:00,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-24 20:04:00,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:00,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 20:04:00,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:00,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:00,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:00,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:00,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:00,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-24 20:04:00,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:00,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:00,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:00,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 20:04:00,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:00,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 20:04:00,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:00,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:00,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:00,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:00,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:00,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:04:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:00,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:00,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:00,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:04:00,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:00,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 20:04:00,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:00,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:00,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:00,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:00,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:00,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 20:04:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:00,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:00,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:00,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:04:00,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:00,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 20:04:00,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:00,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:00,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:00,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:00,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:00,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-24 20:04:00,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:00,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:00,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:00,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 20:04:00,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:00,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 20:04:00,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:00,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:00,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:00,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:00,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:00,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:04:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:00,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:00,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:00,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:04:00,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:00,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 20:04:00,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:00,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:00,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:00,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:00,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:00,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:04:00,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:00,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:00,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:00,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 20:04:00,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:00,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 20:04:00,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:00,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:00,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:00,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:00,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:04:00,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:04:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:00,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:00,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:00,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:04:00,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:00,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 20:04:00,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:00,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:00,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:00,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:00,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:00,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-24 20:04:00,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:00,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:00,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:00,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 20:04:00,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:00,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 20:04:00,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:00,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:04:00,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:00,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-24 20:04:00,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:00,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:04:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:00,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:00,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:00,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 20:04:00,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:00,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-24 20:04:00,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:00,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:00,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:00,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:00,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:00,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:04:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:00,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:00,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:00,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:04:00,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:00,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:04:00,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:00,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:00,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:00,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:00,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:00,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 20:04:00,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:00,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:01,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:01,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:04:01,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:01,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:04:01,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:01,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:01,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:01,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:01,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:01,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-24 20:04:01,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:01,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:01,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:01,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 20:04:01,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:01,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 20:04:01,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:01,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:01,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:01,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:01,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:01,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:04:01,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:01,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:01,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:01,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:04:01,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:01,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 20:04:01,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:01,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:01,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:01,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:01,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:01,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 20:04:01,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:01,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:01,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:01,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:04:01,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:01,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 20:04:01,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:01,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:01,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:01,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:01,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:01,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-24 20:04:01,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:01,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:01,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:01,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:01,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-24 20:04:01,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:04:01,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-09-24 20:04:01,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:01,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:01,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-09-24 20:04:01,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:01,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:01,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:04:01,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:01,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:01,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:01,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:04:01,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:01,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 20:04:01,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:01,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:01,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:01,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:01,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:01,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 20:04:01,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:01,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:01,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:01,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:04:01,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:01,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:04:01,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:01,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:01,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:01,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:01,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:01,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 20:04:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:01,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:01,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:01,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:01,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:04:01,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:04:01,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-24 20:04:01,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:01,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:01,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:01,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:01,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:01,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:04:01,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:01,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:01,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:01,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:01,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 20:04:01,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:04:01,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 20:04:01,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:01,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:01,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:01,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:01,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:01,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-09-24 20:04:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:01,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:01,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:01,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 20:04:01,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:01,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 20:04:01,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:01,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:01,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 20:04:01,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:01,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:04:01,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:04:01,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:01,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:01,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:01,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:04:01,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:01,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 20:04:01,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:01,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:01,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:01,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:01,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:01,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-09-24 20:04:01,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:01,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:01,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:01,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:04:01,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:01,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 20:04:01,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:01,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:01,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 20:04:01,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:01,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:04:01,789 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-09-24 20:04:01,790 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [551357892] [2020-09-24 20:04:01,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:04:01,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 20:04:01,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894137086] [2020-09-24 20:04:01,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 20:04:01,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:04:01,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 20:04:01,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:04:01,795 INFO L87 Difference]: Start difference. First operand 2650 states and 3001 transitions. Second operand 10 states. [2020-09-24 20:04:08,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:04:08,532 INFO L93 Difference]: Finished difference Result 8266 states and 9541 transitions. [2020-09-24 20:04:08,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 20:04:08,533 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 245 [2020-09-24 20:04:08,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:04:08,562 INFO L225 Difference]: With dead ends: 8266 [2020-09-24 20:04:08,563 INFO L226 Difference]: Without dead ends: 5672 [2020-09-24 20:04:08,571 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-09-24 20:04:08,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5672 states. [2020-09-24 20:04:08,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5672 to 4870. [2020-09-24 20:04:08,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4870 states. [2020-09-24 20:04:08,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4870 states to 4870 states and 5504 transitions. [2020-09-24 20:04:08,884 INFO L78 Accepts]: Start accepts. Automaton has 4870 states and 5504 transitions. Word has length 245 [2020-09-24 20:04:08,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:04:08,885 INFO L479 AbstractCegarLoop]: Abstraction has 4870 states and 5504 transitions. [2020-09-24 20:04:08,885 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 20:04:08,885 INFO L276 IsEmpty]: Start isEmpty. Operand 4870 states and 5504 transitions. [2020-09-24 20:04:08,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-09-24 20:04:08,896 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:04:08,897 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:04:08,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 20:04:08,897 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:04:08,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:04:08,898 INFO L82 PathProgramCache]: Analyzing trace with hash -790465097, now seen corresponding path program 1 times [2020-09-24 20:04:08,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:04:08,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1232206432] [2020-09-24 20:04:08,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:04:08,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:09,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:09,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:09,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 300 [2020-09-24 20:04:09,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:09,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 475 [2020-09-24 20:04:09,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:09,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:04:09,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 235 [2020-09-24 20:04:09,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:04:09,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:09,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:04:09,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:09,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:09,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:09,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-24 20:04:09,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:09,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-24 20:04:09,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:09,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:09,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:09,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:09,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:04:09,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-24 20:04:09,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:09,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:09,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:09,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 20:04:09,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:09,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 20:04:09,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:09,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:09,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:09,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:09,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:04:09,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:04:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:09,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:09,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:09,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:04:09,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:09,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 20:04:09,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:09,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:09,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:09,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:09,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:04:09,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 20:04:09,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:09,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:09,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:09,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:04:09,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:09,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 20:04:09,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:09,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:09,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:09,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:09,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:09,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-24 20:04:09,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:09,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:09,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:09,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 20:04:09,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:09,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 20:04:09,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:09,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:09,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:09,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:09,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:09,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:04:09,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:09,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:09,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:09,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:04:09,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:09,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 20:04:09,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:09,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:09,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:09,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:09,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:04:09,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:04:09,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:09,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:09,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:09,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 20:04:09,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:09,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 20:04:09,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:09,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:09,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:09,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:09,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:09,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:04:09,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:09,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:09,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:09,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:04:09,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:09,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 20:04:09,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:09,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:09,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:09,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:09,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:09,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-24 20:04:09,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:10,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:10,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:10,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 20:04:10,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:10,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 20:04:10,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:10,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:10,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:10,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:10,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:10,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:04:10,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:10,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:10,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:10,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 20:04:10,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:10,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 20:04:10,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:10,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:10,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:10,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:10,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:10,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:04:10,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:10,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:10,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:10,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:04:10,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:10,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 20:04:10,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:10,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:10,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:10,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:10,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:10,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 20:04:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:10,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:10,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:10,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:04:10,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:10,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 20:04:10,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:10,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:10,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:10,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:10,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:10,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-24 20:04:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:10,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:10,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:10,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 20:04:10,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:10,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 20:04:10,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:10,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:10,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:10,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:10,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:04:10,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:04:10,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:10,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:10,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:10,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:04:10,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:10,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 20:04:10,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:10,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:10,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:10,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:10,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:10,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 20:04:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:10,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:10,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:10,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:04:10,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:10,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 20:04:10,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:10,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:10,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:10,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:10,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:10,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 20:04:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:10,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:10,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:10,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-24 20:04:10,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:10,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-24 20:04:10,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:10,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:04:10,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-24 20:04:10,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:04:10,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:10,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:04:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:10,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:10,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:10,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:04:10,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:10,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 20:04:10,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:10,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:10,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:10,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:10,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:10,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 20:04:10,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:10,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:10,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:10,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:04:10,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:10,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 20:04:10,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:10,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:10,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:10,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:10,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:10,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 20:04:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:10,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:10,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:10,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:04:10,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:10,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 20:04:10,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:10,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:04:10,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 20:04:10,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:04:10,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:10,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:04:10,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:10,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:10,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:10,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 20:04:10,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:10,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 20:04:10,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:10,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:04:10,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 20:04:10,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:04:10,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:10,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-09-24 20:04:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:10,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:10,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:10,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 20:04:10,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:10,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 20:04:10,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:10,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:10,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 20:04:10,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:10,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:10,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:04:10,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:10,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:10,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:10,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:04:10,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:10,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:04:10,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:10,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:10,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:10,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:10,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:10,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-09-24 20:04:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:10,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:10,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:10,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:04:10,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:10,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 20:04:10,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:10,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:10,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 20:04:10,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:10,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:04:10,841 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2020-09-24 20:04:10,842 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1232206432] [2020-09-24 20:04:10,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:04:10,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 20:04:10,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66643913] [2020-09-24 20:04:10,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 20:04:10,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:04:10,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 20:04:10,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:04:10,848 INFO L87 Difference]: Start difference. First operand 4870 states and 5504 transitions. Second operand 10 states. [2020-09-24 20:04:12,969 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-24 20:04:16,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:04:16,294 INFO L93 Difference]: Finished difference Result 8232 states and 9641 transitions. [2020-09-24 20:04:16,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 20:04:16,294 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 245 [2020-09-24 20:04:16,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:04:16,331 INFO L225 Difference]: With dead ends: 8232 [2020-09-24 20:04:16,332 INFO L226 Difference]: Without dead ends: 5630 [2020-09-24 20:04:16,348 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2020-09-24 20:04:16,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5630 states. [2020-09-24 20:04:16,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5630 to 4878. [2020-09-24 20:04:16,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4878 states. [2020-09-24 20:04:16,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4878 states to 4878 states and 5512 transitions. [2020-09-24 20:04:16,719 INFO L78 Accepts]: Start accepts. Automaton has 4878 states and 5512 transitions. Word has length 245 [2020-09-24 20:04:16,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:04:16,720 INFO L479 AbstractCegarLoop]: Abstraction has 4878 states and 5512 transitions. [2020-09-24 20:04:16,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 20:04:16,720 INFO L276 IsEmpty]: Start isEmpty. Operand 4878 states and 5512 transitions. [2020-09-24 20:04:16,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-09-24 20:04:16,733 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:04:16,734 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:04:16,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 20:04:16,734 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:04:16,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:04:16,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1475730443, now seen corresponding path program 1 times [2020-09-24 20:04:16,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:04:16,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [225390024] [2020-09-24 20:04:16,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:04:16,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:16,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:17,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking...