/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=LOWLEXORDER --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 22:20:01,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:20:01,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:20:01,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:20:01,380 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:20:01,391 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:20:01,393 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:20:01,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:20:01,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:20:01,401 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:20:01,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:20:01,404 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:20:01,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:20:01,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:20:01,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:20:01,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:20:01,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:20:01,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:20:01,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:20:01,413 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:20:01,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:20:01,415 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:20:01,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:20:01,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:20:01,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:20:01,420 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:20:01,420 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:20:01,421 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:20:01,421 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:20:01,422 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:20:01,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:20:01,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:20:01,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:20:01,425 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:20:01,426 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:20:01,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:20:01,427 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:20:01,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:20:01,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:20:01,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:20:01,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:20:01,431 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 22:20:01,457 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:20:01,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:20:01,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:20:01,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:20:01,459 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:20:01,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:20:01,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:20:01,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:20:01,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:20:01,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:20:01,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:20:01,460 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:20:01,460 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:20:01,460 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:20:01,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:20:01,461 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:20:01,461 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:20:01,461 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:20:01,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:20:01,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:20:01,462 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:20:01,462 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:20:01,462 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:20:01,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:20:01,463 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:20:01,463 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:20:01,463 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 22:20:01,463 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 22:20:01,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:20:01,922 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:20:01,927 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:20:01,929 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:20:01,929 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:20:01,930 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-24 22:20:02,007 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ca769bd0f/7bed48863e3f4a498924ac407f30d2f0/FLAGa33557c1d [2020-09-24 22:20:02,873 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:20:02,874 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-24 22:20:02,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ca769bd0f/7bed48863e3f4a498924ac407f30d2f0/FLAGa33557c1d [2020-09-24 22:20:03,393 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ca769bd0f/7bed48863e3f4a498924ac407f30d2f0 [2020-09-24 22:20:03,421 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:20:03,428 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:20:03,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:20:03,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:20:03,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:20:03,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:20:03" (1/1) ... [2020-09-24 22:20:03,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a7c6092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:20:03, skipping insertion in model container [2020-09-24 22:20:03,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:20:03" (1/1) ... [2020-09-24 22:20:03,451 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:20:03,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:20:04,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:20:04,895 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:20:05,155 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:20:05,251 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:20:05,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:20:05 WrapperNode [2020-09-24 22:20:05,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:20:05,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:20:05,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:20:05,253 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:20:05,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:20:05" (1/1) ... [2020-09-24 22:20:05,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:20:05" (1/1) ... [2020-09-24 22:20:05,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:20:05" (1/1) ... [2020-09-24 22:20:05,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:20:05" (1/1) ... [2020-09-24 22:20:05,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:20:05" (1/1) ... [2020-09-24 22:20:05,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:20:05" (1/1) ... [2020-09-24 22:20:05,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:20:05" (1/1) ... [2020-09-24 22:20:05,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:20:05,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:20:05,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:20:05,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:20:05,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:20:05" (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 22:20:05,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:20:05,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:20:05,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~~netdev_tx_t~0 [2020-09-24 22:20:05,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-09-24 22:20:05,565 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-09-24 22:20:05,566 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-09-24 22:20:05,566 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2020-09-24 22:20:05,566 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2020-09-24 22:20:05,567 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_shared [2020-09-24 22:20:05,567 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_share_check [2020-09-24 22:20:05,568 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2020-09-24 22:20:05,568 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2020-09-24 22:20:05,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_cow [2020-09-24 22:20:05,569 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cow [2020-09-24 22:20:05,569 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 22:20:05,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_zalloc [2020-09-24 22:20:05,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 22:20:05,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-24 22:20:05,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-24 22:20:05,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-24 22:20:05,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 22:20:05,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-24 22:20:05,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-24 22:20:05,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-24 22:20:05,573 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-09-24 22:20:05,573 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-09-24 22:20:05,573 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_dormant_off [2020-09-24 22:20:05,573 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2020-09-24 22:20:05,573 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_type_trans [2020-09-24 22:20:05,573 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_connect_disconnect [2020-09-24 22:20:05,574 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_connected [2020-09-24 22:20:05,574 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_disconnected [2020-09-24 22:20:05,574 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_data_indication [2020-09-24 22:20:05,574 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_data_transmit [2020-09-24 22:20:05,574 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_xmit [2020-09-24 22:20:05,574 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_open [2020-09-24 22:20:05,574 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_close [2020-09-24 22:20:05,575 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_rx [2020-09-24 22:20:05,575 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_ioctl [2020-09-24 22:20:05,575 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_init [2020-09-24 22:20:05,575 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_exit [2020-09-24 22:20:05,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_hdlc_proto_1 [2020-09-24 22:20:05,577 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:20:05,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-09-24 22:20:05,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-09-24 22:20:05,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-09-24 22:20:05,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-09-24 22:20:05,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-09-24 22:20:05,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_12 [2020-09-24 22:20:05,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2020-09-24 22:20:05,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_14 [2020-09-24 22:20:05,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-09-24 22:20:05,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-24 22:20:05,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-09-24 22:20:05,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-09-24 22:20:05,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-09-24 22:20:05,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-24 22:20:05,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-24 22:20:05,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-24 22:20:05,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-24 22:20:05,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-09-24 22:20:05,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 22:20:05,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-09-24 22:20:05,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-09-24 22:20:05,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-09-24 22:20:05,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-09-24 22:20:05,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-09-24 22:20:05,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 22:20:05,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2020-09-24 22:20:05,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2020-09-24 22:20:05,583 INFO L138 BoogieDeclarations]: Found implementation of procedure attach_hdlc_protocol [2020-09-24 22:20:05,583 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2020-09-24 22:20:05,584 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_connect_request [2020-09-24 22:20:05,585 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_received [2020-09-24 22:20:05,585 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_request [2020-09-24 22:20:05,586 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_disconnect_request [2020-09-24 22:20:05,586 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_register [2020-09-24 22:20:05,586 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_unregister [2020-09-24 22:20:05,586 INFO L138 BoogieDeclarations]: Found implementation of procedure linkwatch_fire_event [2020-09-24 22:20:05,586 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-09-24 22:20:05,586 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2020-09-24 22:20:05,586 INFO L138 BoogieDeclarations]: Found implementation of procedure register_hdlc_protocol [2020-09-24 22:20:05,587 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2020-09-24 22:20:05,587 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-09-24 22:20:05,587 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-09-24 22:20:05,587 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-09-24 22:20:05,587 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_hdlc_protocol [2020-09-24 22:20:05,587 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 22:20:05,588 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-24 22:20:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:20:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-24 22:20:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-09-24 22:20:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2020-09-24 22:20:05,589 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-09-24 22:20:05,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:20:05,589 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2020-09-24 22:20:05,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-09-24 22:20:05,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-09-24 22:20:05,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-09-24 22:20:05,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-09-24 22:20:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-09-24 22:20:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2020-09-24 22:20:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2020-09-24 22:20:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2020-09-24 22:20:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:20:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2020-09-24 22:20:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure skb_shared [2020-09-24 22:20:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure skb_share_check [2020-09-24 22:20:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:20:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-09-24 22:20:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-09-24 22:20:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-09-24 22:20:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2020-09-24 22:20:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2020-09-24 22:20:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:20:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_12 [2020-09-24 22:20:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_cow [2020-09-24 22:20:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cow [2020-09-24 22:20:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-09-24 22:20:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-09-24 22:20:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-09-24 22:20:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:20:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 22:20:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:20:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-24 22:20:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 22:20:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 22:20:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_zalloc [2020-09-24 22:20:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:20:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-24 22:20:05,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 22:20:05,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-24 22:20:05,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-24 22:20:05,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-24 22:20:05,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 22:20:05,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-24 22:20:05,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-24 22:20:05,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_hdlc_proto_1 [2020-09-24 22:20:05,602 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-09-24 22:20:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2020-09-24 22:20:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-09-24 22:20:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2020-09-24 22:20:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_14 [2020-09-24 22:20:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure linkwatch_fire_event [2020-09-24 22:20:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure netif_dormant_off [2020-09-24 22:20:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-09-24 22:20:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure register_hdlc_protocol [2020-09-24 22:20:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_hdlc_protocol [2020-09-24 22:20:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2020-09-24 22:20:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure attach_hdlc_protocol [2020-09-24 22:20:05,612 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_register [2020-09-24 22:20:05,612 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_unregister [2020-09-24 22:20:05,612 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_connect_request [2020-09-24 22:20:05,612 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_disconnect_request [2020-09-24 22:20:05,612 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_request [2020-09-24 22:20:05,612 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_received [2020-09-24 22:20:05,612 INFO L130 BoogieDeclarations]: Found specification of procedure x25_type_trans [2020-09-24 22:20:05,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:20:05,613 INFO L130 BoogieDeclarations]: Found specification of procedure x25_ioctl [2020-09-24 22:20:05,613 INFO L130 BoogieDeclarations]: Found specification of procedure x25_connect_disconnect [2020-09-24 22:20:05,614 INFO L130 BoogieDeclarations]: Found specification of procedure x25_connected [2020-09-24 22:20:05,614 INFO L130 BoogieDeclarations]: Found specification of procedure x25_disconnected [2020-09-24 22:20:05,614 INFO L130 BoogieDeclarations]: Found specification of procedure x25_data_indication [2020-09-24 22:20:05,614 INFO L130 BoogieDeclarations]: Found specification of procedure x25_data_transmit [2020-09-24 22:20:05,614 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~~netdev_tx_t~0 [2020-09-24 22:20:05,614 INFO L130 BoogieDeclarations]: Found specification of procedure x25_xmit [2020-09-24 22:20:05,614 INFO L130 BoogieDeclarations]: Found specification of procedure x25_open [2020-09-24 22:20:05,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:20:05,615 INFO L130 BoogieDeclarations]: Found specification of procedure x25_close [2020-09-24 22:20:05,615 INFO L130 BoogieDeclarations]: Found specification of procedure x25_rx [2020-09-24 22:20:05,615 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-09-24 22:20:05,615 INFO L130 BoogieDeclarations]: Found specification of procedure mod_init [2020-09-24 22:20:05,616 INFO L130 BoogieDeclarations]: Found specification of procedure mod_exit [2020-09-24 22:20:05,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 22:20:05,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 22:20:05,616 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:20:05,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-09-24 22:20:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-24 22:20:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-09-24 22:20:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-09-24 22:20:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-09-24 22:20:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-24 22:20:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-24 22:20:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-24 22:20:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-24 22:20:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-09-24 22:20:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-09-24 22:20:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-09-24 22:20:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-24 22:20:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:20:05,619 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 22:20:05,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:20:05,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 22:20:05,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:20:06,191 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-24 22:20:07,206 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:20:07,206 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-24 22:20:07,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:20:07 BoogieIcfgContainer [2020-09-24 22:20:07,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:20:07,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:20:07,221 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:20:07,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:20:07,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:20:03" (1/3) ... [2020-09-24 22:20:07,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3305a515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:20:07, skipping insertion in model container [2020-09-24 22:20:07,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:20:05" (2/3) ... [2020-09-24 22:20:07,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3305a515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:20:07, skipping insertion in model container [2020-09-24 22:20:07,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:20:07" (3/3) ... [2020-09-24 22:20:07,229 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 22:20:07,240 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:20:07,251 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:20:07,275 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:20:07,324 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:20:07,325 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:20:07,325 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:20:07,325 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:20:07,325 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:20:07,325 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:20:07,325 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:20:07,326 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:20:07,382 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states. [2020-09-24 22:20:07,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-09-24 22:20:07,415 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:20:07,418 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 22:20:07,420 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:20:07,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:20:07,429 INFO L82 PathProgramCache]: Analyzing trace with hash 2033327711, now seen corresponding path program 1 times [2020-09-24 22:20:07,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:20:07,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1896700807] [2020-09-24 22:20:07,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:20:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:07,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:08,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:09,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:09,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 22:20:09,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:20:09,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1461 [2020-09-24 22:20:09,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:09,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:20:09,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 22:20:09,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-24 22:20:09,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 22:20:09,614 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-09-24 22:20:09,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:20:09,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:09,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:09,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:09,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-24 22:20:09,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:09,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-24 22:20:09,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:09,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:09,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:09,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:09,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:09,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-24 22:20:09,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:09,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:09,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:09,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 22:20:09,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:09,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 22:20:09,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:09,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:09,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:09,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:09,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:09,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:20:09,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:09,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:09,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:09,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:20:09,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:09,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 22:20:09,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:09,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:09,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:09,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:09,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:09,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 22:20:09,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:09,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:10,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:10,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:20:10,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:10,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 22:20:10,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:10,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:10,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:10,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:10,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:10,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-24 22:20:10,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:10,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:10,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:10,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 22:20:10,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:10,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 22:20:10,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:10,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:10,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:10,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:20:10,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:10,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:20:10,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:10,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:10,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:10,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:20:10,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:10,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 22:20:10,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:10,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:10,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:10,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:20:10,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:10,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 22:20:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:10,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:10,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:10,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 22:20:10,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:10,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 22:20:10,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:10,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:10,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:10,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 22:20:10,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:10,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:20:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:10,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:10,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:10,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:20:10,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:10,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 22:20:10,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:10,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:10,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:10,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:10,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:10,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-24 22:20:10,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:10,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:10,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:10,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:20:10,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:10,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-24 22:20:10,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:10,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:20:10,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:10,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:20:10,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:20:10,432 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 22:20:10,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1896700807] [2020-09-24 22:20:10,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:20:10,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 22:20:10,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005260765] [2020-09-24 22:20:10,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 22:20:10,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:20:10,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 22:20:10,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:20:10,472 INFO L87 Difference]: Start difference. First operand 890 states. Second operand 10 states. [2020-09-24 22:20:12,465 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 102 [2020-09-24 22:20:12,722 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-24 22:20:12,961 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-09-24 22:20:13,167 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-24 22:20:15,992 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-09-24 22:20:21,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:20:21,665 INFO L93 Difference]: Finished difference Result 2288 states and 2752 transitions. [2020-09-24 22:20:21,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-24 22:20:21,667 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 106 [2020-09-24 22:20:21,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:20:21,701 INFO L225 Difference]: With dead ends: 2288 [2020-09-24 22:20:21,701 INFO L226 Difference]: Without dead ends: 1575 [2020-09-24 22:20:21,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=151, Invalid=355, Unknown=0, NotChecked=0, Total=506 [2020-09-24 22:20:21,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1575 states. [2020-09-24 22:20:21,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1575 to 1379. [2020-09-24 22:20:21,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1379 states. [2020-09-24 22:20:21,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 1561 transitions. [2020-09-24 22:20:21,950 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 1561 transitions. Word has length 106 [2020-09-24 22:20:21,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:20:21,951 INFO L479 AbstractCegarLoop]: Abstraction has 1379 states and 1561 transitions. [2020-09-24 22:20:21,951 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 22:20:21,951 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 1561 transitions. [2020-09-24 22:20:21,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 22:20:21,959 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:20:21,960 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] [2020-09-24 22:20:21,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:20:21,960 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:20:21,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:20:21,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1002477034, now seen corresponding path program 1 times [2020-09-24 22:20:21,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:20:21,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [835573867] [2020-09-24 22:20:21,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:20:22,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:22,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:22,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:22,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:24,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:24,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:27,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:27,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-24 22:20:27,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 22:20:27,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-24 22:20:27,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:27,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 22:20:27,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 22:20:27,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 22:20:27,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 22:20:27,429 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-09-24 22:20:27,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:20:27,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:27,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:27,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:27,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-24 22:20:27,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:27,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-24 22:20:27,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:27,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:27,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:27,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 22:20:27,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:20:27,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-24 22:20:27,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:27,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:27,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:27,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 22:20:27,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:27,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-24 22:20:27,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:27,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:27,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:27,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 22:20:27,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:27,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:20:27,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:27,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:27,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:27,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:20:27,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:27,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 22:20:27,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:27,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:27,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:27,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:27,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:27,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 22:20:27,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:27,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:27,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:27,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:20:27,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:27,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 22:20:27,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:27,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:27,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:27,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:27,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:27,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-24 22:20:27,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:27,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:27,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:27,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 22:20:27,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:27,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 22:20:27,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:27,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:27,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:27,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 22:20:27,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:27,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:20:27,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:27,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:27,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:27,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:20:27,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:27,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 22:20:27,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:27,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:27,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:27,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:27,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:28,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 22:20:28,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:28,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:28,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:28,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:28,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-24 22:20:28,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:20:28,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 472 [2020-09-24 22:20:28,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:28,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:20:28,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 22:20:28,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 22:20:28,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:20:28,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:20:28,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:28,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:28,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:28,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:20:28,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:28,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-24 22:20:28,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:28,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:20:28,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:28,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:20:28,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:20:28,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 22:20:28,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:28,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:28,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:28,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:20:28,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:28,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 22:20:28,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:28,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:28,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:28,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:20:28,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:28,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 22:20:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:28,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:28,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:29,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:29,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:20:29,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:20:29,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-24 22:20:29,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:29,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:29,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:29,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 22:20:29,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:29,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 22:20:29,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:29,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:29,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:29,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:29,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 22:20:29,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:20:29,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 22:20:29,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:29,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:29,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:29,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:29,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:20:29,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 22:20:29,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:29,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:29,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:29,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 22:20:29,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:29,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 22:20:29,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:29,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:29,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 22:20:29,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:29,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:20:29,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:20:29,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:29,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:29,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:29,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:20:29,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:29,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 22:20:29,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:29,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:29,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:29,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:29,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:20:29,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 22:20:29,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:29,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:29,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:29,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:20:29,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:29,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 22:20:29,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:29,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:29,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 22:20:29,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:29,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 22:20:29,446 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 22:20:29,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [835573867] [2020-09-24 22:20:29,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:20:29,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 22:20:29,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101476268] [2020-09-24 22:20:29,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 22:20:29,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:20:29,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 22:20:29,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:20:29,452 INFO L87 Difference]: Start difference. First operand 1379 states and 1561 transitions. Second operand 13 states. [2020-09-24 22:20:29,949 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-09-24 22:20:30,174 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-09-24 22:20:30,396 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-09-24 22:20:30,578 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-09-24 22:20:30,851 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-09-24 22:20:33,630 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-09-24 22:20:35,297 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-09-24 22:20:35,508 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-09-24 22:20:35,764 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-09-24 22:20:40,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:20:40,067 INFO L93 Difference]: Finished difference Result 4371 states and 5091 transitions. [2020-09-24 22:20:40,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-09-24 22:20:40,071 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 171 [2020-09-24 22:20:40,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:20:40,084 INFO L225 Difference]: With dead ends: 4371 [2020-09-24 22:20:40,084 INFO L226 Difference]: Without dead ends: 2578 [2020-09-24 22:20:40,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=325, Invalid=1157, Unknown=0, NotChecked=0, Total=1482 [2020-09-24 22:20:40,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2578 states. [2020-09-24 22:20:40,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2578 to 2239. [2020-09-24 22:20:40,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2239 states. [2020-09-24 22:20:40,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2239 states to 2239 states and 2530 transitions. [2020-09-24 22:20:40,269 INFO L78 Accepts]: Start accepts. Automaton has 2239 states and 2530 transitions. Word has length 171 [2020-09-24 22:20:40,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:20:40,270 INFO L479 AbstractCegarLoop]: Abstraction has 2239 states and 2530 transitions. [2020-09-24 22:20:40,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 22:20:40,270 INFO L276 IsEmpty]: Start isEmpty. Operand 2239 states and 2530 transitions. [2020-09-24 22:20:40,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-24 22:20:40,281 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:20:40,281 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] [2020-09-24 22:20:40,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:20:40,282 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:20:40,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:20:40,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1381291275, now seen corresponding path program 1 times [2020-09-24 22:20:40,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:20:40,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [95536458] [2020-09-24 22:20:40,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:20:40,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:40,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:40,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:40,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:40,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:43,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:45,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:45,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-09-24 22:20:45,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 22:20:45,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-24 22:20:45,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:45,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:20:45,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-09-24 22:20:45,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:20:45,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:45,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:20:45,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:45,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:45,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:45,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-24 22:20:45,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:45,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 22:20:45,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:45,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:45,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:45,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:45,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:45,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-24 22:20:45,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:45,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:45,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:45,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 22:20:45,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:45,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 22:20:45,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:45,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:45,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:45,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:45,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:45,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:20:45,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:45,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:45,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:45,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:20:45,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:45,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 22:20:45,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:45,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:45,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:45,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:45,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:20:45,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 22:20:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:45,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:45,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:45,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:20:45,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:45,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 22:20:45,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:45,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:45,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:45,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:45,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:20:45,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-24 22:20:45,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:45,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:45,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:45,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 22:20:45,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:45,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 22:20:45,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:45,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:45,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:45,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:45,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:20:45,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:20:45,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:45,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:45,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:45,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:20:45,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:20:45,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 22:20:45,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:45,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:20:45,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:20:45,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:20:45,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:20:45,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-09-24 22:20:45,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:45,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:46,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:46,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:47,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:50,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:20:50,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-09-24 22:20:50,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:20:50,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-24 22:20:50,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 22:20:50,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 22:20:50,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-09-24 22:20:50,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 22:20:50,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:20:50,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:20:50,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:20:51,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:20:51,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking...