/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:56:22,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:56:22,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:56:22,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:56:22,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:56:22,350 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:56:22,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:56:22,356 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:56:22,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:56:22,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:56:22,364 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:56:22,365 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:56:22,366 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:56:22,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:56:22,371 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:56:22,373 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:56:22,374 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:56:22,376 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:56:22,377 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:56:22,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:56:22,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:56:22,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:56:22,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:56:22,390 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:56:22,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:56:22,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:56:22,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:56:22,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:56:22,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:56:22,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:56:22,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:56:22,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:56:22,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:56:22,413 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:56:22,414 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:56:22,415 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:56:22,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:56:22,416 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:56:22,416 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:56:22,417 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:56:22,418 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:56:22,419 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-09-25 03:56:22,466 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:56:22,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:56:22,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:56:22,469 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:56:22,469 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:56:22,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:56:22,470 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:56:22,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:56:22,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:56:22,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:56:22,471 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:56:22,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:56:22,472 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:56:22,472 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:56:22,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:56:22,473 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:56:22,473 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:56:22,473 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:56:22,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:56:22,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:56:22,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:56:22,474 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:56:22,474 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:56:22,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:56:22,474 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:56:22,475 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:56:22,475 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-25 03:56:22,475 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-09-25 03:56:22,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:56:22,959 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:56:22,964 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:56:22,966 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:56:22,967 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:56:22,968 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-25 03:56:23,065 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/125019c95/63639e45d5a549c1b1ea49e81266c401/FLAG7f47b0569 [2020-09-25 03:56:23,877 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:56:23,878 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-25 03:56:23,910 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/125019c95/63639e45d5a549c1b1ea49e81266c401/FLAG7f47b0569 [2020-09-25 03:56:23,934 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/125019c95/63639e45d5a549c1b1ea49e81266c401 [2020-09-25 03:56:23,947 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:56:23,953 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:56:23,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:56:23,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:56:23,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:56:23,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:56:23" (1/1) ... [2020-09-25 03:56:23,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41f2ee79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:56:23, skipping insertion in model container [2020-09-25 03:56:23,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:56:23" (1/1) ... [2020-09-25 03:56:23,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:56:24,079 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:56:25,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:56:25,473 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:56:25,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:56:25,883 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:56:25,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:56:25 WrapperNode [2020-09-25 03:56:25,885 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:56:25,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:56:25,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:56:25,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:56:25,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:56:25" (1/1) ... [2020-09-25 03:56:25,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:56:25" (1/1) ... [2020-09-25 03:56:25,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:56:25" (1/1) ... [2020-09-25 03:56:25,971 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:56:25" (1/1) ... [2020-09-25 03:56:26,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:56:25" (1/1) ... [2020-09-25 03:56:26,080 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:56:25" (1/1) ... [2020-09-25 03:56:26,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:56:25" (1/1) ... [2020-09-25 03:56:26,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:56:26,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:56:26,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:56:26,108 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:56:26,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:56:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:56:26,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:56:26,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:56:26,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~~netdev_tx_t~0 [2020-09-25 03:56:26,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-09-25 03:56:26,204 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-09-25 03:56:26,204 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-09-25 03:56:26,204 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2020-09-25 03:56:26,204 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2020-09-25 03:56:26,205 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_shared [2020-09-25 03:56:26,205 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_share_check [2020-09-25 03:56:26,205 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2020-09-25 03:56:26,205 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2020-09-25 03:56:26,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_cow [2020-09-25 03:56:26,206 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cow [2020-09-25 03:56:26,206 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 03:56:26,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_zalloc [2020-09-25 03:56:26,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 03:56:26,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-25 03:56:26,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-25 03:56:26,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-25 03:56:26,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-25 03:56:26,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-25 03:56:26,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-25 03:56:26,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-25 03:56:26,208 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-09-25 03:56:26,209 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-09-25 03:56:26,210 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_dormant_off [2020-09-25 03:56:26,210 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2020-09-25 03:56:26,211 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_type_trans [2020-09-25 03:56:26,211 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_connect_disconnect [2020-09-25 03:56:26,211 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_connected [2020-09-25 03:56:26,211 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_disconnected [2020-09-25 03:56:26,211 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_data_indication [2020-09-25 03:56:26,211 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_data_transmit [2020-09-25 03:56:26,212 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_xmit [2020-09-25 03:56:26,212 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_open [2020-09-25 03:56:26,212 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_close [2020-09-25 03:56:26,212 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_rx [2020-09-25 03:56:26,212 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_ioctl [2020-09-25 03:56:26,213 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_init [2020-09-25 03:56:26,213 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_exit [2020-09-25 03:56:26,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_hdlc_proto_1 [2020-09-25 03:56:26,213 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:56:26,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-09-25 03:56:26,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-09-25 03:56:26,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-09-25 03:56:26,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-09-25 03:56:26,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-09-25 03:56:26,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_12 [2020-09-25 03:56:26,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2020-09-25 03:56:26,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_14 [2020-09-25 03:56:26,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-09-25 03:56:26,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-25 03:56:26,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-09-25 03:56:26,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-09-25 03:56:26,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-09-25 03:56:26,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-25 03:56:26,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-25 03:56:26,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-25 03:56:26,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-25 03:56:26,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-09-25 03:56:26,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 03:56:26,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-09-25 03:56:26,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-09-25 03:56:26,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-09-25 03:56:26,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-09-25 03:56:26,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-09-25 03:56:26,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 03:56:26,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2020-09-25 03:56:26,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2020-09-25 03:56:26,258 INFO L138 BoogieDeclarations]: Found implementation of procedure attach_hdlc_protocol [2020-09-25 03:56:26,258 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2020-09-25 03:56:26,258 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_connect_request [2020-09-25 03:56:26,259 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_received [2020-09-25 03:56:26,259 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_request [2020-09-25 03:56:26,259 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_disconnect_request [2020-09-25 03:56:26,259 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_register [2020-09-25 03:56:26,259 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_unregister [2020-09-25 03:56:26,259 INFO L138 BoogieDeclarations]: Found implementation of procedure linkwatch_fire_event [2020-09-25 03:56:26,260 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-09-25 03:56:26,260 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2020-09-25 03:56:26,260 INFO L138 BoogieDeclarations]: Found implementation of procedure register_hdlc_protocol [2020-09-25 03:56:26,260 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2020-09-25 03:56:26,260 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-09-25 03:56:26,260 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-09-25 03:56:26,261 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-09-25 03:56:26,261 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_hdlc_protocol [2020-09-25 03:56:26,261 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-25 03:56:26,261 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-25 03:56:26,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:56:26,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-25 03:56:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-09-25 03:56:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2020-09-25 03:56:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-09-25 03:56:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 03:56:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2020-09-25 03:56:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-09-25 03:56:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-09-25 03:56:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-09-25 03:56:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-09-25 03:56:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-09-25 03:56:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2020-09-25 03:56:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2020-09-25 03:56:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2020-09-25 03:56:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 03:56:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2020-09-25 03:56:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure skb_shared [2020-09-25 03:56:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure skb_share_check [2020-09-25 03:56:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 03:56:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-09-25 03:56:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-09-25 03:56:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-09-25 03:56:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2020-09-25 03:56:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2020-09-25 03:56:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 03:56:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_12 [2020-09-25 03:56:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_cow [2020-09-25 03:56:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cow [2020-09-25 03:56:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-09-25 03:56:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-09-25 03:56:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-09-25 03:56:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 03:56:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 03:56:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:56:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 03:56:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 03:56:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 03:56:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_zalloc [2020-09-25 03:56:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 03:56:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-25 03:56:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 03:56:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-25 03:56:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-25 03:56:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-25 03:56:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-25 03:56:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-25 03:56:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-25 03:56:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_hdlc_proto_1 [2020-09-25 03:56:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-09-25 03:56:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2020-09-25 03:56:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-09-25 03:56:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2020-09-25 03:56:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_14 [2020-09-25 03:56:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure linkwatch_fire_event [2020-09-25 03:56:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure netif_dormant_off [2020-09-25 03:56:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-09-25 03:56:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure register_hdlc_protocol [2020-09-25 03:56:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_hdlc_protocol [2020-09-25 03:56:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2020-09-25 03:56:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure attach_hdlc_protocol [2020-09-25 03:56:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_register [2020-09-25 03:56:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_unregister [2020-09-25 03:56:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_connect_request [2020-09-25 03:56:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_disconnect_request [2020-09-25 03:56:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_request [2020-09-25 03:56:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_received [2020-09-25 03:56:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure x25_type_trans [2020-09-25 03:56:26,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 03:56:26,272 INFO L130 BoogieDeclarations]: Found specification of procedure x25_ioctl [2020-09-25 03:56:26,272 INFO L130 BoogieDeclarations]: Found specification of procedure x25_connect_disconnect [2020-09-25 03:56:26,272 INFO L130 BoogieDeclarations]: Found specification of procedure x25_connected [2020-09-25 03:56:26,272 INFO L130 BoogieDeclarations]: Found specification of procedure x25_disconnected [2020-09-25 03:56:26,272 INFO L130 BoogieDeclarations]: Found specification of procedure x25_data_indication [2020-09-25 03:56:26,273 INFO L130 BoogieDeclarations]: Found specification of procedure x25_data_transmit [2020-09-25 03:56:26,273 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~~netdev_tx_t~0 [2020-09-25 03:56:26,273 INFO L130 BoogieDeclarations]: Found specification of procedure x25_xmit [2020-09-25 03:56:26,273 INFO L130 BoogieDeclarations]: Found specification of procedure x25_open [2020-09-25 03:56:26,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 03:56:26,273 INFO L130 BoogieDeclarations]: Found specification of procedure x25_close [2020-09-25 03:56:26,274 INFO L130 BoogieDeclarations]: Found specification of procedure x25_rx [2020-09-25 03:56:26,274 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-09-25 03:56:26,274 INFO L130 BoogieDeclarations]: Found specification of procedure mod_init [2020-09-25 03:56:26,274 INFO L130 BoogieDeclarations]: Found specification of procedure mod_exit [2020-09-25 03:56:26,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 03:56:26,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 03:56:26,274 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:56:26,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-09-25 03:56:26,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-25 03:56:26,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-09-25 03:56:26,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-09-25 03:56:26,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-09-25 03:56:26,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-25 03:56:26,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-25 03:56:26,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-25 03:56:26,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-25 03:56:26,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-09-25 03:56:26,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-09-25 03:56:26,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-09-25 03:56:26,276 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-25 03:56:26,276 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 03:56:26,277 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-25 03:56:26,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:56:26,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 03:56:26,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:56:26,843 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-25 03:56:27,942 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:56:27,942 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-25 03:56:27,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:56:27 BoogieIcfgContainer [2020-09-25 03:56:27,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:56:27,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:56:27,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:56:27,963 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:56:27,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:56:23" (1/3) ... [2020-09-25 03:56:27,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@263d139c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:56:27, skipping insertion in model container [2020-09-25 03:56:27,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:56:25" (2/3) ... [2020-09-25 03:56:27,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@263d139c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:56:27, skipping insertion in model container [2020-09-25 03:56:27,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:56:27" (3/3) ... [2020-09-25 03:56:27,968 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-25 03:56:27,980 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:56:27,994 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:56:28,014 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:56:28,049 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:56:28,049 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:56:28,049 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:56:28,049 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:56:28,049 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:56:28,050 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:56:28,050 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:56:28,050 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:56:28,089 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states. [2020-09-25 03:56:28,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-09-25 03:56:28,105 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:56:28,106 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:56:28,107 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:56:28,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:56:28,115 INFO L82 PathProgramCache]: Analyzing trace with hash 2033327711, now seen corresponding path program 1 times [2020-09-25 03:56:28,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:56:28,127 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [245892895] [2020-09-25 03:56:28,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:56:28,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:56:28,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:28,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:29,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:56:29,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-25 03:56:29,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:56:29,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1468 [2020-09-25 03:56:29,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:56:29,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:56:29,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 03:56:29,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 03:56:29,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 03:56:30,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:56:30,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:56:30,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:30,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:56:30,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 03:56:30,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:56:30,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-09-25 03:56:30,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:56:30,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:56:30,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:56:30,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:56:30,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:56:30,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 03:56:30,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:56:30,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:30,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:56:30,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:56:30,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:56:30,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 03:56:30,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:56:30,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:56:30,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:56:30,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:56:30,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:56:30,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:56:30,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:56:30,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:30,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:56:30,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:56:30,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:56:30,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 03:56:30,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:56:30,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:56:30,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:56:30,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:56:30,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-25 03:56:30,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 03:56:30,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:56:30,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:30,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:56:30,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:56:30,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:56:30,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 03:56:30,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:56:30,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:56:30,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:56:30,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:56:30,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:56:30,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 03:56:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:56:30,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:30,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:56:30,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 03:56:30,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:56:30,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 03:56:30,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:56:30,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:56:30,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:56:30,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:56:30,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:56:30,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:56:30,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:56:30,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:30,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:56:30,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:56:30,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:56:30,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 03:56:30,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:56:30,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:56:30,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:56:30,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:56:30,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:56:30,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 03:56:30,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:56:30,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:30,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:56:30,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 03:56:30,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:56:30,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 03:56:30,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:56:30,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:56:30,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:56:30,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 03:56:30,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:56:30,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:56:30,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:56:30,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:30,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:56:30,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:56:30,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:56:30,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 03:56:30,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:56:30,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:56:30,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:56:30,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:56:30,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:56:30,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-25 03:56:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:56:30,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:31,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:56:31,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:56:31,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:56:31,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 03:56:31,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:56:31,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:56:31,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:56:31,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:56:31,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:56:31,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:56:31,102 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [245892895] [2020-09-25 03:56:31,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:56:31,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 03:56:31,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956739953] [2020-09-25 03:56:31,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 03:56:31,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:56:31,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 03:56:31,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 03:56:31,145 INFO L87 Difference]: Start difference. First operand 890 states. Second operand 10 states. [2020-09-25 03:56:31,711 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-09-25 03:56:31,898 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-09-25 03:56:32,963 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 102 [2020-09-25 03:56:33,167 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-25 03:56:33,370 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-09-25 03:56:36,236 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-09-25 03:56:41,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:56:41,351 INFO L93 Difference]: Finished difference Result 2288 states and 2752 transitions. [2020-09-25 03:56:41,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 03:56:41,354 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 106 [2020-09-25 03:56:41,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:56:41,394 INFO L225 Difference]: With dead ends: 2288 [2020-09-25 03:56:41,394 INFO L226 Difference]: Without dead ends: 1575 [2020-09-25 03:56:41,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=151, Invalid=355, Unknown=0, NotChecked=0, Total=506 [2020-09-25 03:56:41,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1575 states. [2020-09-25 03:56:41,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1575 to 1379. [2020-09-25 03:56:41,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1379 states. [2020-09-25 03:56:41,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 1561 transitions. [2020-09-25 03:56:41,650 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 1561 transitions. Word has length 106 [2020-09-25 03:56:41,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:56:41,651 INFO L479 AbstractCegarLoop]: Abstraction has 1379 states and 1561 transitions. [2020-09-25 03:56:41,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 03:56:41,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 1561 transitions. [2020-09-25 03:56:41,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 03:56:41,661 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:56:41,662 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:56:41,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:56:41,663 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:56:41,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:56:41,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1002477034, now seen corresponding path program 1 times [2020-09-25 03:56:41,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:56:41,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1399131870] [2020-09-25 03:56:41,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:56:41,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:56:41,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:41,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:41,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:43,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:43,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:46,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:56:46,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-25 03:56:46,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:56:46,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 03:56:46,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:56:46,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:56:46,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 03:56:46,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 03:56:46,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:56:47,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:56:47,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:56:47,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:47,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:56:47,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 03:56:47,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:56:47,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-25 03:56:47,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:56:47,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:56:47,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:56:47,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 03:56:47,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:56:47,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 03:56:47,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:56:47,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:47,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:56:47,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:56:47,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:56:47,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 03:56:47,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:56:47,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:56:47,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:56:47,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:56:47,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:56:47,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:56:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:56:47,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:47,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:56:47,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:56:47,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:56:47,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 03:56:47,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:56:47,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:56:47,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:56:47,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:56:47,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:56:47,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 03:56:47,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:56:47,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:47,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:56:47,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:56:47,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:56:47,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 03:56:47,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:56:47,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:56:47,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:56:47,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:56:47,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:56:47,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 03:56:47,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:56:47,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:47,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:56:47,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 03:56:47,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:56:47,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 03:56:47,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:56:47,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:56:47,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:56:47,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:56:47,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:56:47,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:56:47,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:56:47,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:47,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:56:47,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:56:47,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:56:47,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 03:56:47,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:56:47,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:56:47,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:56:47,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:56:47,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:56:47,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 03:56:47,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:56:47,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:47,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:47,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:56:47,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 03:56:47,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:56:47,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 408 [2020-09-25 03:56:47,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:56:47,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:56:47,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:56:47,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 03:56:47,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:56:48,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:56:48,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:56:48,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:48,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:56:48,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:56:48,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:56:48,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 03:56:48,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:56:48,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:56:48,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:56:48,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:56:48,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:56:48,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 03:56:48,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:56:48,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:48,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:56:48,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:56:48,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:56:48,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 03:56:48,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:56:48,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:56:48,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:56:48,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:56:48,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:56:48,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 03:56:48,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:56:48,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:48,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:48,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:56:48,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 03:56:48,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:56:48,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-09-25 03:56:48,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:56:48,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:56:48,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:56:48,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 03:56:48,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:56:48,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 03:56:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:56:48,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:48,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:48,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:56:48,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:56:48,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:56:48,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 03:56:48,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:56:48,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:56:48,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 03:56:48,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 03:56:48,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:56:48,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 03:56:48,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:56:48,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:48,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:56:48,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 03:56:48,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:56:48,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 03:56:48,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:56:48,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:56:48,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:56:48,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:56:48,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:56:48,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:56:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:56:48,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:48,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:56:48,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:56:48,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:56:48,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 03:56:48,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:56:48,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:56:48,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:56:48,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:56:48,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:56:48,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 03:56:48,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:56:48,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:56:48,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:56:48,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:56:48,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:56:48,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 03:56:48,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:56:48,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:56:48,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 03:56:48,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:56:48,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:56:48,957 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 03:56:48,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1399131870] [2020-09-25 03:56:48,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:56:48,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 03:56:48,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722745580] [2020-09-25 03:56:48,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 03:56:48,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:56:48,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 03:56:48,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-09-25 03:56:48,963 INFO L87 Difference]: Start difference. First operand 1379 states and 1561 transitions. Second operand 14 states. [2020-09-25 03:56:49,834 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-09-25 03:56:49,996 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-09-25 03:56:50,250 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-09-25 03:56:52,366 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-09-25 03:56:53,174 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-25 03:56:54,912 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-09-25 03:56:55,104 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-09-25 03:56:55,327 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-09-25 03:56:56,893 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-25 03:56:59,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:56:59,716 INFO L93 Difference]: Finished difference Result 4375 states and 5195 transitions. [2020-09-25 03:56:59,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-09-25 03:56:59,717 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 171 [2020-09-25 03:56:59,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:56:59,734 INFO L225 Difference]: With dead ends: 4375 [2020-09-25 03:56:59,734 INFO L226 Difference]: Without dead ends: 2582 [2020-09-25 03:56:59,744 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=356, Invalid=1366, Unknown=0, NotChecked=0, Total=1722 [2020-09-25 03:56:59,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2582 states. [2020-09-25 03:56:59,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2582 to 2243. [2020-09-25 03:56:59,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2243 states. [2020-09-25 03:56:59,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2243 states to 2243 states and 2534 transitions. [2020-09-25 03:56:59,910 INFO L78 Accepts]: Start accepts. Automaton has 2243 states and 2534 transitions. Word has length 171 [2020-09-25 03:56:59,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:56:59,911 INFO L479 AbstractCegarLoop]: Abstraction has 2243 states and 2534 transitions. [2020-09-25 03:56:59,911 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 03:56:59,911 INFO L276 IsEmpty]: Start isEmpty. Operand 2243 states and 2534 transitions. [2020-09-25 03:56:59,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-09-25 03:56:59,924 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:56:59,924 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:56:59,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:56:59,925 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:56:59,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:56:59,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1924013427, now seen corresponding path program 1 times [2020-09-25 03:56:59,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:56:59,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635486153] [2020-09-25 03:56:59,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:56:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:57:00,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:57:00,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:57:00,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:57:02,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:57:02,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:57:05,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:57:05,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-25 03:57:05,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:57:05,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 03:57:05,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:57:05,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:57:05,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 03:57:05,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-25 03:57:05,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:57:05,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:57:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:57:05,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:57:05,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:57:05,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 03:57:05,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:57:05,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 03:57:05,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:57:05,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:57:05,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:57:05,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:57:05,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:57:05,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-25 03:57:05,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:57:05,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:57:05,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:57:05,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:57:05,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:57:05,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 03:57:05,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:57:05,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:57:05,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:57:05,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:57:05,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:57:05,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:57:05,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:57:05,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:57:05,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:57:05,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:57:05,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:57:05,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 03:57:05,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:57:05,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:57:05,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:57:05,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:57:05,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:57:05,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 03:57:05,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:57:05,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:57:05,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:57:05,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:57:05,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:57:05,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 03:57:05,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:57:05,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:57:05,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:57:05,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:57:05,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:57:05,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 03:57:05,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:57:05,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:57:05,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:57:05,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 03:57:05,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:57:05,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 03:57:05,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:57:05,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:57:05,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:57:05,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:57:05,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:57:05,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:57:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:57:05,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:57:05,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:57:05,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:57:05,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:57:05,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 03:57:05,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:57:05,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:57:05,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:57:05,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:57:05,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:57:05,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-09-25 03:57:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:57:05,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:57:05,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:57:06,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:57:10,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:57:10,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 03:57:10,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:57:10,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 03:57:10,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:57:10,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:57:10,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:57:10,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-25 03:57:10,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:57:10,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:57:10,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:57:10,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:57:10,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking...