/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=NARROWEST --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-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:49:40,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:49:40,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:49:40,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:49:40,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:49:40,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:49:40,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:49:40,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:49:40,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:49:40,386 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:49:40,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:49:40,389 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:49:40,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:49:40,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:49:40,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:49:40,393 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:49:40,394 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:49:40,395 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:49:40,397 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:49:40,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:49:40,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:49:40,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:49:40,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:49:40,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:49:40,409 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:49:40,413 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:49:40,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:49:40,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:49:40,416 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:49:40,417 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:49:40,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:49:40,420 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:49:40,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:49:40,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:49:40,423 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:49:40,423 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:49:40,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:49:40,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:49:40,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:49:40,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:49:40,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:49:40,431 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 [2020-09-25 02:49:40,481 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:49:40,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:49:40,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:49:40,484 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:49:40,484 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:49:40,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:49:40,485 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:49:40,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:49:40,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:49:40,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:49:40,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:49:40,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:49:40,486 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:49:40,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:49:40,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:49:40,488 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:49:40,488 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:49:40,488 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:49:40,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:49:40,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:49:40,489 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:49:40,489 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:49:40,489 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:49:40,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:49:40,490 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:49:40,490 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:49:40,490 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-25 02:49:40,490 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 02:49:40,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:49:40,990 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:49:40,994 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:49:40,996 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:49:40,996 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:49:40,997 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2020-09-25 02:49:41,088 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee923dbd9/c86344b42e1b48708f675c6b2f9cf9bf/FLAG9919e6eb7 [2020-09-25 02:49:41,846 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:49:41,847 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2020-09-25 02:49:41,877 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee923dbd9/c86344b42e1b48708f675c6b2f9cf9bf/FLAG9919e6eb7 [2020-09-25 02:49:41,971 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee923dbd9/c86344b42e1b48708f675c6b2f9cf9bf [2020-09-25 02:49:41,986 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:49:41,992 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:49:41,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:49:41,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:49:42,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:49:42,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:49:41" (1/1) ... [2020-09-25 02:49:42,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e8d2598 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:42, skipping insertion in model container [2020-09-25 02:49:42,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:49:41" (1/1) ... [2020-09-25 02:49:42,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:49:42,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:49:42,459 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1323] [2020-09-25 02:49:42,460 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1324-1325] [2020-09-25 02:49:42,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:49:43,018 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:49:43,081 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1323] [2020-09-25 02:49:43,081 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1324-1325] [2020-09-25 02:49:43,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:49:43,214 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:49:43,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:43 WrapperNode [2020-09-25 02:49:43,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:49:43,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:49:43,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:49:43,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:49:43,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:43" (1/1) ... [2020-09-25 02:49:43,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:43" (1/1) ... [2020-09-25 02:49:43,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:43" (1/1) ... [2020-09-25 02:49:43,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:43" (1/1) ... [2020-09-25 02:49:43,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:43" (1/1) ... [2020-09-25 02:49:43,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:43" (1/1) ... [2020-09-25 02:49:43,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:43" (1/1) ... [2020-09-25 02:49:43,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:49:43,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:49:43,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:49:43,361 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:49:43,362 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:43" (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 02:49:43,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:49:43,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:49:43,462 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-09-25 02:49:43,462 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-09-25 02:49:43,462 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2020-09-25 02:49:43,462 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2020-09-25 02:49:43,463 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-09-25 02:49:43,464 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-09-25 02:49:43,464 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2020-09-25 02:49:43,464 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 02:49:43,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 02:49:43,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-25 02:49:43,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-25 02:49:43,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-25 02:49:43,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-25 02:49:43,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-25 02:49:43,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-25 02:49:43,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-25 02:49:43,468 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2020-09-25 02:49:43,468 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_allocate_port [2020-09-25 02:49:43,469 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_free_port [2020-09-25 02:49:43,469 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_name [2020-09-25 02:49:43,469 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_valid [2020-09-25 02:49:43,469 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_len [2020-09-25 02:49:43,469 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_start [2020-09-25 02:49:43,470 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_valid [2020-09-25 02:49:43,470 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_len [2020-09-25 02:49:43,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ns558_isa_probe [2020-09-25 02:49:43,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ns558_pnp_probe [2020-09-25 02:49:43,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ns558_init [2020-09-25 02:49:43,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ns558_exit [2020-09-25 02:49:43,470 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:49:43,470 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-25 02:49:43,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-09-25 02:49:43,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-09-25 02:49:43,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-09-25 02:49:43,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-09-25 02:49:43,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-09-25 02:49:43,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-09-25 02:49:43,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_port [2020-09-25 02:49:43,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-09-25 02:49:43,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2020-09-25 02:49:43,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2020-09-25 02:49:43,472 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_phys [2020-09-25 02:49:43,472 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_unregister_port [2020-09-25 02:49:43,472 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-09-25 02:49:43,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 02:49:43,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 02:49:43,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-09-25 02:49:43,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-09-25 02:49:43,473 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-09-25 02:49:43,474 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_resource [2020-09-25 02:49:43,474 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_register_driver [2020-09-25 02:49:43,474 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_unregister_driver [2020-09-25 02:49:43,474 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-09-25 02:49:43,474 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2020-09-25 02:49:43,475 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-25 02:49:43,475 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-25 02:49:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:49:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-25 02:49:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-09-25 02:49:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-09-25 02:49:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-09-25 02:49:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:49:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-09-25 02:49:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2020-09-25 02:49:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2020-09-25 02:49:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2020-09-25 02:49:43,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:49:43,477 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2020-09-25 02:49:43,478 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2020-09-25 02:49:43,478 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-09-25 02:49:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-09-25 02:49:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2020-09-25 02:49:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-25 02:49:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-09-25 02:49:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-25 02:49:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-09-25 02:49:43,480 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:49:43,480 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 02:49:43,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:49:43,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 02:49:43,481 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 02:49:43,481 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 02:49:43,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 02:49:43,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:49:43,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-25 02:49:43,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-25 02:49:43,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-25 02:49:43,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-25 02:49:43,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-25 02:49:43,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-25 02:49:43,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-25 02:49:43,482 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-09-25 02:49:43,482 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2020-09-25 02:49:43,482 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_port [2020-09-25 02:49:43,483 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_unregister_port [2020-09-25 02:49:43,483 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_phys [2020-09-25 02:49:43,483 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_allocate_port [2020-09-25 02:49:43,483 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_free_port [2020-09-25 02:49:43,483 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_name [2020-09-25 02:49:43,483 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_resource [2020-09-25 02:49:43,483 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_valid [2020-09-25 02:49:43,484 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_len [2020-09-25 02:49:43,484 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_start [2020-09-25 02:49:43,484 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_valid [2020-09-25 02:49:43,484 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_len [2020-09-25 02:49:43,484 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_register_driver [2020-09-25 02:49:43,484 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_unregister_driver [2020-09-25 02:49:43,484 INFO L130 BoogieDeclarations]: Found specification of procedure ns558_isa_probe [2020-09-25 02:49:43,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:49:43,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:49:43,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:49:43,485 INFO L130 BoogieDeclarations]: Found specification of procedure ns558_pnp_probe [2020-09-25 02:49:43,485 INFO L130 BoogieDeclarations]: Found specification of procedure ns558_init [2020-09-25 02:49:43,486 INFO L130 BoogieDeclarations]: Found specification of procedure ns558_exit [2020-09-25 02:49:43,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 02:49:43,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 02:49:43,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-09-25 02:49:43,487 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:49:43,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-09-25 02:49:43,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-09-25 02:49:43,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-09-25 02:49:43,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-09-25 02:49:43,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-09-25 02:49:43,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-09-25 02:49:43,492 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:49:43,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:49:43,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:49:43,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:49:43,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 02:49:43,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:49:44,227 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-25 02:49:45,097 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:49:45,097 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 02:49:45,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:49:45 BoogieIcfgContainer [2020-09-25 02:49:45,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:49:45,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:49:45,109 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:49:45,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:49:45,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:49:41" (1/3) ... [2020-09-25 02:49:45,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ba7ad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:49:45, skipping insertion in model container [2020-09-25 02:49:45,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:43" (2/3) ... [2020-09-25 02:49:45,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ba7ad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:49:45, skipping insertion in model container [2020-09-25 02:49:45,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:49:45" (3/3) ... [2020-09-25 02:49:45,117 INFO L109 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2020-09-25 02:49:45,129 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:49:45,141 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:49:45,163 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:49:45,198 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:49:45,198 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:49:45,198 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:49:45,198 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:49:45,198 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:49:45,199 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:49:45,199 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:49:45,199 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:49:45,238 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states. [2020-09-25 02:49:45,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2020-09-25 02:49:45,299 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:49:45,301 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:49:45,302 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:49:45,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:49:45,310 INFO L82 PathProgramCache]: Analyzing trace with hash 965266846, now seen corresponding path program 1 times [2020-09-25 02:49:45,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:49:45,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1483180696] [2020-09-25 02:49:45,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:49:45,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:46,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:46,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:49,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:50,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:50,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:50,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:50,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 509 [2020-09-25 02:49:50,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 02:49:50,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 02:49:50,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:50,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:49:50,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 470 [2020-09-25 02:49:50,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 02:49:50,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 02:49:51,309 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-25 02:49:51,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:49:51,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:51,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:51,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:51,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 297 [2020-09-25 02:49:51,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:51,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-09-25 02:49:51,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:51,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:51,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:51,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:51,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:51,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2020-09-25 02:49:51,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:51,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:51,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:51,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:49:51,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:51,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 02:49:51,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:51,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:51,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:51,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:51,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:49:51,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-09-25 02:49:51,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:51,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:51,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:51,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:49:51,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:51,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 02:49:51,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:51,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:51,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:51,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:51,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:51,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2020-09-25 02:49:51,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:51,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:51,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:51,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:49:51,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:51,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:49:51,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:51,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:51,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:51,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:51,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:49:51,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2020-09-25 02:49:51,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:51,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:51,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:51,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:49:51,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:51,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 02:49:51,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:51,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:51,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:51,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:51,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:49:51,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2020-09-25 02:49:51,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:51,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:51,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:51,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:49:51,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:51,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-25 02:49:51,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:51,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:51,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:51,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:51,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:49:51,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 02:49:51,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:51,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:51,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:51,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:49:51,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:51,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 02:49:51,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:51,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:51,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:51,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:51,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:49:51,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2020-09-25 02:49:51,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:51,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:51,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:51,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:49:51,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:51,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:49:51,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:51,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:51,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:51,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:51,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:49:52,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2020-09-25 02:49:52,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:52,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:52,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:52,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:49:52,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:52,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 02:49:52,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:52,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:52,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:52,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:52,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:49:52,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2020-09-25 02:49:52,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:52,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:52,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:52,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:49:52,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:52,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:49:52,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:52,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:52,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:52,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:52,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:52,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2020-09-25 02:49:52,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:52,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:52,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:52,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:49:52,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:52,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:49:52,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:52,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:52,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 02:49:52,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:52,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:49:52,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2020-09-25 02:49:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:52,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:52,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:52,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:49:52,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:52,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:49:52,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:52,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:52,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:49:52,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:52,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:52,353 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-25 02:49:52,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1483180696] [2020-09-25 02:49:52,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:49:52,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 02:49:52,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599800066] [2020-09-25 02:49:52,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 02:49:52,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:49:52,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 02:49:52,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:49:52,388 INFO L87 Difference]: Start difference. First operand 921 states. Second operand 6 states. [2020-09-25 02:49:52,574 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-09-25 02:49:56,059 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-09-25 02:49:59,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:49:59,011 INFO L93 Difference]: Finished difference Result 1928 states and 2306 transitions. [2020-09-25 02:49:59,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 02:49:59,014 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 470 [2020-09-25 02:49:59,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:49:59,047 INFO L225 Difference]: With dead ends: 1928 [2020-09-25 02:49:59,048 INFO L226 Difference]: Without dead ends: 1237 [2020-09-25 02:49:59,058 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:49:59,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1237 states. [2020-09-25 02:49:59,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1237 to 847. [2020-09-25 02:49:59,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 847 states. [2020-09-25 02:49:59,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 923 transitions. [2020-09-25 02:49:59,210 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 923 transitions. Word has length 470 [2020-09-25 02:49:59,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:49:59,213 INFO L479 AbstractCegarLoop]: Abstraction has 847 states and 923 transitions. [2020-09-25 02:49:59,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 02:49:59,214 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 923 transitions. [2020-09-25 02:49:59,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2020-09-25 02:49:59,224 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:49:59,225 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:49:59,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:49:59,225 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:49:59,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:49:59,226 INFO L82 PathProgramCache]: Analyzing trace with hash -1931197204, now seen corresponding path program 1 times [2020-09-25 02:49:59,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:49:59,227 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [655019256] [2020-09-25 02:49:59,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:49:59,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:59,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:59,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:02,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:03,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:03,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:04,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:04,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:04,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 535 [2020-09-25 02:50:04,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 02:50:04,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5077 [2020-09-25 02:50:04,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:04,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:50:04,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 517 [2020-09-25 02:50:04,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 02:50:04,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:50:04,703 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-25 02:50:04,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:50:04,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:04,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:04,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:04,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 297 [2020-09-25 02:50:04,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:04,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-25 02:50:04,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:04,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:04,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:04,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:04,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:05,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2020-09-25 02:50:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:05,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:05,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:05,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:50:05,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:05,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 02:50:05,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:05,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:05,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:05,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:05,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:50:05,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-09-25 02:50:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:05,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:05,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:05,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:50:05,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:05,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 02:50:05,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:05,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:05,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:05,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:05,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:05,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2020-09-25 02:50:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:05,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:05,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:05,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:50:05,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:05,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:50:05,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:05,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:05,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:05,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:05,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:05,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2020-09-25 02:50:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:05,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:05,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:05,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:50:05,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:05,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:50:05,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:05,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:05,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:05,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:05,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:05,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2020-09-25 02:50:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:05,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:05,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:05,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:50:05,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:05,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 02:50:05,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:05,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:05,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:05,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:05,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:05,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 02:50:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:05,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:05,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:05,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:50:05,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:05,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 02:50:05,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:05,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:05,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:05,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:05,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:50:05,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2020-09-25 02:50:05,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:05,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:05,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:05,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:50:05,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:05,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:50:05,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:05,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:05,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:05,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:05,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:05,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2020-09-25 02:50:05,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:05,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:05,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:05,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:50:05,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:05,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 02:50:05,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:05,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:05,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:05,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:05,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:05,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2020-09-25 02:50:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:05,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:05,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:05,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:50:05,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:05,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 02:50:05,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:05,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:05,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:05,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:05,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:05,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2020-09-25 02:50:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:05,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:05,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:05,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:50:05,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:05,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:50:05,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:05,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:05,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:05,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:05,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:05,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2020-09-25 02:50:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:05,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:05,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:05,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:50:05,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:05,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:50:05,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:05,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:05,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:05,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:05,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:50:05,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2020-09-25 02:50:05,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:05,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:05,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:05,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:50:05,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:05,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:50:05,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:05,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:05,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:05,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:05,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:05,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2020-09-25 02:50:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:05,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:05,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:05,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:50:05,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:05,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:50:05,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:05,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:05,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:05,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:05,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:05,905 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-09-25 02:50:05,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [655019256] [2020-09-25 02:50:05,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:50:05,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 02:50:05,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110300279] [2020-09-25 02:50:05,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 02:50:05,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:50:05,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 02:50:05,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:50:05,914 INFO L87 Difference]: Start difference. First operand 847 states and 923 transitions. Second operand 6 states. [2020-09-25 02:50:06,117 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-09-25 02:50:09,024 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-09-25 02:50:11,715 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-09-25 02:50:12,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:50:12,554 INFO L93 Difference]: Finished difference Result 1852 states and 2202 transitions. [2020-09-25 02:50:12,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 02:50:12,556 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 492 [2020-09-25 02:50:12,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:50:12,575 INFO L225 Difference]: With dead ends: 1852 [2020-09-25 02:50:12,576 INFO L226 Difference]: Without dead ends: 1339 [2020-09-25 02:50:12,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:50:12,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2020-09-25 02:50:12,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 871. [2020-09-25 02:50:12,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 871 states. [2020-09-25 02:50:12,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 958 transitions. [2020-09-25 02:50:12,667 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 958 transitions. Word has length 492 [2020-09-25 02:50:12,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:50:12,669 INFO L479 AbstractCegarLoop]: Abstraction has 871 states and 958 transitions. [2020-09-25 02:50:12,669 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 02:50:12,669 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 958 transitions. [2020-09-25 02:50:12,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2020-09-25 02:50:12,680 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:50:12,681 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:12,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:50:12,681 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:50:12,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:50:12,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1164133881, now seen corresponding path program 1 times [2020-09-25 02:50:12,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:50:12,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [744869767] [2020-09-25 02:50:12,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:50:12,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:12,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:13,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:13,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:17,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:17,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 577 [2020-09-25 02:50:17,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:50:17,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 02:50:17,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:17,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:50:17,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 346 [2020-09-25 02:50:17,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:50:17,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:50:18,094 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-25 02:50:18,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:50:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:18,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:18,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:18,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 297 [2020-09-25 02:50:18,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:18,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-09-25 02:50:18,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:18,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:18,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:18,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:18,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:18,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2020-09-25 02:50:18,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:18,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:18,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:18,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:50:18,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:18,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 02:50:18,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:18,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:18,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:18,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:18,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:50:18,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-09-25 02:50:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:18,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:18,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:18,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:50:18,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:18,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 02:50:18,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:18,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:18,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:18,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:18,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:18,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2020-09-25 02:50:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:18,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:18,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:18,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:50:18,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:18,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:50:18,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:18,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:18,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:18,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:18,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:18,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2020-09-25 02:50:18,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:18,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:18,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:18,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:18,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 02:50:18,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:50:18,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-25 02:50:18,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:18,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:18,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 02:50:18,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:18,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:50:18,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:50:18,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:18,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:18,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:18,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:50:18,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:18,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 02:50:18,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:18,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:18,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:18,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:18,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:50:18,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:50:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:18,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:18,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:18,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:50:18,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:18,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:50:18,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:18,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:18,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:18,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:18,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:50:18,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:50:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:18,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:18,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:18,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:50:18,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:18,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:50:18,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:18,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:18,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:18,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:18,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:50:18,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-09-25 02:50:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:18,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:18,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:18,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:19,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:19,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 02:50:19,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:50:19,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 710 [2020-09-25 02:50:19,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:19,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:19,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-09-25 02:50:19,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:19,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:50:19,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 02:50:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:19,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:19,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:19,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:50:19,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:19,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 02:50:19,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:19,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:19,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:19,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:19,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:50:19,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:50:19,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:19,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:19,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:19,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:50:19,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:19,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 02:50:19,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:19,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:19,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:19,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:19,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:50:19,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 02:50:19,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:19,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:19,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:19,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:50:19,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:19,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:50:19,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:19,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:19,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:19,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:19,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:50:19,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2020-09-25 02:50:19,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:19,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:19,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:19,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:20,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:20,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 02:50:20,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:50:20,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 700 [2020-09-25 02:50:20,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:20,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:20,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-09-25 02:50:20,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:20,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:50:20,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 02:50:20,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:20,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:20,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:20,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:50:20,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:20,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 02:50:20,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:20,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:20,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:20,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:20,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:20,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:50:20,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:20,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:20,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:20,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:50:20,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:20,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:50:20,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:20,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:20,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:20,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:20,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:50:20,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 02:50:20,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:20,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:20,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:20,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:50:20,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:20,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:50:20,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:20,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:20,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:20,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:20,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:50:20,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2020-09-25 02:50:20,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:20,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:20,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:20,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:50:20,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:20,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 02:50:20,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:20,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:20,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 02:50:20,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:20,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:50:20,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 02:50:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:20,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:20,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:20,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:50:20,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:20,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 02:50:20,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:20,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:20,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:20,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:20,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:50:20,665 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2020-09-25 02:50:20,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [744869767] [2020-09-25 02:50:20,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:50:20,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 02:50:20,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595892215] [2020-09-25 02:50:20,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 02:50:20,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:50:20,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 02:50:20,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:50:20,669 INFO L87 Difference]: Start difference. First operand 871 states and 958 transitions. Second operand 6 states. [2020-09-25 02:50:20,804 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-09-25 02:50:21,963 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-09-25 02:50:22,172 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-09-25 02:50:28,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:50:28,032 INFO L93 Difference]: Finished difference Result 2349 states and 2811 transitions. [2020-09-25 02:50:28,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 02:50:28,034 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 528 [2020-09-25 02:50:28,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:50:28,053 INFO L225 Difference]: With dead ends: 2349 [2020-09-25 02:50:28,054 INFO L226 Difference]: Without dead ends: 1812 [2020-09-25 02:50:28,057 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 02:50:28,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2020-09-25 02:50:28,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 1188. [2020-09-25 02:50:28,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1188 states. [2020-09-25 02:50:28,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 1332 transitions. [2020-09-25 02:50:28,167 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 1332 transitions. Word has length 528 [2020-09-25 02:50:28,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:50:28,168 INFO L479 AbstractCegarLoop]: Abstraction has 1188 states and 1332 transitions. [2020-09-25 02:50:28,168 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 02:50:28,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 1332 transitions. [2020-09-25 02:50:28,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2020-09-25 02:50:28,181 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:50:28,182 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:28,182 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:50:28,182 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:50:28,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:50:28,183 INFO L82 PathProgramCache]: Analyzing trace with hash -2020239584, now seen corresponding path program 1 times [2020-09-25 02:50:28,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:50:28,184 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [950621808] [2020-09-25 02:50:28,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:50:28,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:28,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:28,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:29,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking...