/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_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 06:13:20,272 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:13:20,276 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:13:20,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:13:20,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:13:20,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:13:20,329 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:13:20,332 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:13:20,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:13:20,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:13:20,340 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:13:20,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:13:20,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:13:20,344 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:13:20,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:13:20,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:13:20,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:13:20,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:13:20,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:13:20,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:13:20,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:13:20,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:13:20,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:13:20,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:13:20,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:13:20,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:13:20,386 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:13:20,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:13:20,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:13:20,392 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:13:20,392 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:13:20,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:13:20,394 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:13:20,396 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:13:20,397 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:13:20,398 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:13:20,398 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:13:20,399 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:13:20,399 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:13:20,400 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:13:20,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:13:20,402 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 06:13:20,433 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:13:20,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:13:20,434 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:13:20,435 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:13:20,435 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:13:20,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:13:20,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:13:20,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:13:20,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:13:20,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:13:20,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:13:20,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:13:20,436 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:13:20,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:13:20,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:13:20,437 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:13:20,437 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:13:20,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:13:20,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:13:20,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:13:20,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:13:20,438 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:13:20,439 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:13:20,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:13:20,439 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:13:20,439 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:13:20,439 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-25 06:13:20,440 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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 06:13:20,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:13:20,903 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:13:20,908 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:13:20,910 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:13:20,911 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:13:20,912 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2020-09-25 06:13:21,002 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a31693cb/7b3e4f0667c04637a73245b3fe5cebf0/FLAG409b76bae [2020-09-25 06:13:21,696 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:13:21,697 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2020-09-25 06:13:21,726 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a31693cb/7b3e4f0667c04637a73245b3fe5cebf0/FLAG409b76bae [2020-09-25 06:13:21,860 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a31693cb/7b3e4f0667c04637a73245b3fe5cebf0 [2020-09-25 06:13:21,872 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:13:21,878 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:13:21,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:13:21,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:13:21,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:13:21,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:13:21" (1/1) ... [2020-09-25 06:13:21,891 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 06:13:21, skipping insertion in model container [2020-09-25 06:13:21,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:13:21" (1/1) ... [2020-09-25 06:13:21,901 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:13:21,996 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:13:22,408 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 06:13:22,409 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 06:13:22,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:13:22,984 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:13:23,061 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 06:13:23,062 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 06:13:23,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:13:23,221 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:13:23,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:13:23 WrapperNode [2020-09-25 06:13:23,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:13:23,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:13:23,223 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:13:23,223 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:13:23,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:13:23" (1/1) ... [2020-09-25 06:13:23,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:13:23" (1/1) ... [2020-09-25 06:13:23,284 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:13:23" (1/1) ... [2020-09-25 06:13:23,284 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:13:23" (1/1) ... [2020-09-25 06:13:23,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:13:23" (1/1) ... [2020-09-25 06:13:23,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:13:23" (1/1) ... [2020-09-25 06:13:23,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:13:23" (1/1) ... [2020-09-25 06:13:23,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:13:23,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:13:23,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:13:23,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:13:23,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:13:23" (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 06:13:23,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:13:23,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:13:23,523 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-09-25 06:13:23,524 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-09-25 06:13:23,524 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2020-09-25 06:13:23,525 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2020-09-25 06:13:23,525 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-09-25 06:13:23,525 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-09-25 06:13:23,525 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2020-09-25 06:13:23,526 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 06:13:23,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 06:13:23,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-25 06:13:23,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-25 06:13:23,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-25 06:13:23,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-25 06:13:23,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-25 06:13:23,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-25 06:13:23,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-25 06:13:23,530 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2020-09-25 06:13:23,530 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_allocate_port [2020-09-25 06:13:23,530 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_free_port [2020-09-25 06:13:23,530 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_name [2020-09-25 06:13:23,531 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_valid [2020-09-25 06:13:23,531 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_len [2020-09-25 06:13:23,531 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_start [2020-09-25 06:13:23,531 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_valid [2020-09-25 06:13:23,531 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_len [2020-09-25 06:13:23,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ns558_isa_probe [2020-09-25 06:13:23,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ns558_pnp_probe [2020-09-25 06:13:23,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ns558_init [2020-09-25 06:13:23,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ns558_exit [2020-09-25 06:13:23,532 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:13:23,532 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-25 06:13:23,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-09-25 06:13:23,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-09-25 06:13:23,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-09-25 06:13:23,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-09-25 06:13:23,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-09-25 06:13:23,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-09-25 06:13:23,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_port [2020-09-25 06:13:23,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-09-25 06:13:23,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2020-09-25 06:13:23,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2020-09-25 06:13:23,534 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_phys [2020-09-25 06:13:23,534 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_unregister_port [2020-09-25 06:13:23,535 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-09-25 06:13:23,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 06:13:23,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 06:13:23,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-09-25 06:13:23,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-09-25 06:13:23,536 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-09-25 06:13:23,537 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_resource [2020-09-25 06:13:23,537 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_register_driver [2020-09-25 06:13:23,537 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_unregister_driver [2020-09-25 06:13:23,537 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-09-25 06:13:23,537 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2020-09-25 06:13:23,537 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-25 06:13:23,538 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-25 06:13:23,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:13:23,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-25 06:13:23,538 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-09-25 06:13:23,538 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-09-25 06:13:23,539 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-09-25 06:13:23,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:13:23,539 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-09-25 06:13:23,539 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2020-09-25 06:13:23,539 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2020-09-25 06:13:23,540 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2020-09-25 06:13:23,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:13:23,541 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2020-09-25 06:13:23,542 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2020-09-25 06:13:23,542 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-09-25 06:13:23,542 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-09-25 06:13:23,542 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2020-09-25 06:13:23,542 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-25 06:13:23,542 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-09-25 06:13:23,543 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-25 06:13:23,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-09-25 06:13:23,544 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:13:23,544 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 06:13:23,544 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:13:23,544 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 06:13:23,544 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 06:13:23,545 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 06:13:23,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 06:13:23,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:13:23,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-25 06:13:23,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-25 06:13:23,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-25 06:13:23,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-25 06:13:23,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-25 06:13:23,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-25 06:13:23,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-25 06:13:23,546 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-09-25 06:13:23,546 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2020-09-25 06:13:23,546 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_port [2020-09-25 06:13:23,547 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_unregister_port [2020-09-25 06:13:23,547 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_phys [2020-09-25 06:13:23,547 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_allocate_port [2020-09-25 06:13:23,547 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_free_port [2020-09-25 06:13:23,547 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_name [2020-09-25 06:13:23,547 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_resource [2020-09-25 06:13:23,548 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_valid [2020-09-25 06:13:23,548 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_len [2020-09-25 06:13:23,548 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_start [2020-09-25 06:13:23,548 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_valid [2020-09-25 06:13:23,548 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_len [2020-09-25 06:13:23,548 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_register_driver [2020-09-25 06:13:23,549 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_unregister_driver [2020-09-25 06:13:23,549 INFO L130 BoogieDeclarations]: Found specification of procedure ns558_isa_probe [2020-09-25 06:13:23,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:13:23,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:13:23,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:13:23,549 INFO L130 BoogieDeclarations]: Found specification of procedure ns558_pnp_probe [2020-09-25 06:13:23,550 INFO L130 BoogieDeclarations]: Found specification of procedure ns558_init [2020-09-25 06:13:23,550 INFO L130 BoogieDeclarations]: Found specification of procedure ns558_exit [2020-09-25 06:13:23,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 06:13:23,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 06:13:23,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-09-25 06:13:23,552 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:13:23,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-09-25 06:13:23,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-09-25 06:13:23,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-09-25 06:13:23,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-09-25 06:13:23,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-09-25 06:13:23,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-09-25 06:13:23,557 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:13:23,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:13:23,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:13:23,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:13:23,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 06:13:23,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:13:24,382 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-25 06:13:25,395 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:13:25,396 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 06:13:25,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:13:25 BoogieIcfgContainer [2020-09-25 06:13:25,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:13:25,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:13:25,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:13:25,417 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:13:25,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:13:21" (1/3) ... [2020-09-25 06:13:25,419 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 06:13:25, skipping insertion in model container [2020-09-25 06:13:25,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:13:23" (2/3) ... [2020-09-25 06:13:25,419 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 06:13:25, skipping insertion in model container [2020-09-25 06:13:25,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:13:25" (3/3) ... [2020-09-25 06:13:25,422 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 06:13:25,434 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:13:25,445 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:13:25,468 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:13:25,504 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:13:25,504 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:13:25,504 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:13:25,504 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:13:25,504 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:13:25,505 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:13:25,505 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:13:25,505 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:13:25,571 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states. [2020-09-25 06:13:25,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2020-09-25 06:13:25,611 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:13:25,613 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 06:13:25,613 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:13:25,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:13:25,622 INFO L82 PathProgramCache]: Analyzing trace with hash 965266846, now seen corresponding path program 1 times [2020-09-25 06:13:25,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:13:25,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1483180696] [2020-09-25 06:13:25,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:13:26,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:26,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:26,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:30,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:30,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:31,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:31,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 509 [2020-09-25 06:13:31,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:13:31,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-09-25 06:13:31,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:31,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:31,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:13:31,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 489 [2020-09-25 06:13:31,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:13:31,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:13:31,651 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-25 06:13:31,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:13:31,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:31,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:31,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:31,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 297 [2020-09-25 06:13:31,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:31,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-09-25 06:13:31,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:31,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:31,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:31,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:31,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:31,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:32,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2020-09-25 06:13:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:32,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:32,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:32,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:13:32,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:32,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 06:13:32,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:32,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:32,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:32,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:32,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:32,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:32,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-09-25 06:13:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:32,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:32,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:32,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:13:32,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:32,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 06:13:32,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:32,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:32,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:32,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:32,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:32,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:32,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2020-09-25 06:13:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:32,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:32,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:32,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:13:32,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:32,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:13:32,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:32,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:32,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:32,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:32,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:32,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:32,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2020-09-25 06:13:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:32,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:32,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:32,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:13:32,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:32,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 06:13:32,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:32,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:32,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:32,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:32,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:32,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:32,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2020-09-25 06:13:32,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:32,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:32,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:32,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 06:13:32,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:32,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 06:13:32,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:32,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:32,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:32,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:32,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:32,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:32,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:13:32,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:32,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:32,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:32,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:13:32,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:32,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 06:13:32,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:32,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:32,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:32,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:32,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:32,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-25 06:13:32,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2020-09-25 06:13:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:32,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:32,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:32,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:13:32,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:32,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 06:13:32,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:32,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:32,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:32,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:32,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:32,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:32,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2020-09-25 06:13:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:32,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:32,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:32,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:13:32,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:32,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:13:32,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:32,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:32,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:32,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:32,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:32,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:32,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2020-09-25 06:13:32,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:32,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:32,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:32,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:13:32,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:32,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 06:13:32,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:32,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:32,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:32,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:32,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:32,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:32,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2020-09-25 06:13:32,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:32,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:32,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:32,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:13:32,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:32,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:13:32,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:32,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:32,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:32,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:32,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:32,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:32,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2020-09-25 06:13:32,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:32,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:32,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:32,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:13:32,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:32,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:13:32,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:32,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:32,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:32,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:32,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:32,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 45 [2020-09-25 06:13:32,772 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 06:13:32,772 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1483180696] [2020-09-25 06:13:32,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:13:32,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:13:32,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9834072] [2020-09-25 06:13:32,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:13:32,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:13:32,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:13:32,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:13:32,809 INFO L87 Difference]: Start difference. First operand 921 states. Second operand 6 states. [2020-09-25 06:13:33,143 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-09-25 06:13:37,106 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-09-25 06:13:40,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:13:40,339 INFO L93 Difference]: Finished difference Result 1928 states and 2306 transitions. [2020-09-25 06:13:40,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 06:13:40,342 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 470 [2020-09-25 06:13:40,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:13:40,376 INFO L225 Difference]: With dead ends: 1928 [2020-09-25 06:13:40,376 INFO L226 Difference]: Without dead ends: 1237 [2020-09-25 06:13:40,387 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:13:40,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1237 states. [2020-09-25 06:13:40,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1237 to 847. [2020-09-25 06:13:40,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 847 states. [2020-09-25 06:13:40,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 923 transitions. [2020-09-25 06:13:40,553 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 923 transitions. Word has length 470 [2020-09-25 06:13:40,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:13:40,556 INFO L479 AbstractCegarLoop]: Abstraction has 847 states and 923 transitions. [2020-09-25 06:13:40,556 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:13:40,556 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 923 transitions. [2020-09-25 06:13:40,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2020-09-25 06:13:40,570 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:13:40,571 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 06:13:40,571 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:13:40,571 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:13:40,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:13:40,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1931197204, now seen corresponding path program 1 times [2020-09-25 06:13:40,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:13:40,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [246392259] [2020-09-25 06:13:40,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:13:40,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:40,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:41,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:44,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:44,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:45,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:45,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:45,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 535 [2020-09-25 06:13:45,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:13:45,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 06:13:45,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:45,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:45,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:13:45,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 517 [2020-09-25 06:13:45,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:13:45,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:45,986 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-25 06:13:45,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:13:46,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:46,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:46,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:46,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 297 [2020-09-25 06:13:46,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:46,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-09-25 06:13:46,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:46,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:46,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:46,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:46,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:46,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:46,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2020-09-25 06:13:46,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:46,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:46,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:46,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:13:46,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:46,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:13:46,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:46,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:46,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:46,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:46,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:46,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:46,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-09-25 06:13:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:46,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:46,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:46,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:13:46,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:46,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 06:13:46,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:46,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:46,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:46,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:46,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:46,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:46,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2020-09-25 06:13:46,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:46,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:46,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:46,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:13:46,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:46,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:13:46,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:46,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:46,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:46,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:46,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:46,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:46,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2020-09-25 06:13:46,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:46,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:46,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:46,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:13:46,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:46,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 06:13:46,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:46,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:46,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:46,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:46,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:46,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:46,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2020-09-25 06:13:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:46,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:46,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:46,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 06:13:46,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:46,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 06:13:46,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:46,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:46,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:46,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:46,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:46,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:46,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:13:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:46,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:46,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:46,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:13:46,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:46,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 06:13:46,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:46,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:46,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:46,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:46,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:46,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:46,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2020-09-25 06:13:46,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:46,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:46,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:46,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:13:46,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:46,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:13:46,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:46,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:46,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:46,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:46,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:46,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:46,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2020-09-25 06:13:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:46,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:46,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:46,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:13:46,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:46,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:13:46,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:46,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:46,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:46,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:46,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:46,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:13:46,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2020-09-25 06:13:46,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:46,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:46,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:46,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:13:46,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:46,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:13:46,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:46,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:46,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:46,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:46,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:46,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:46,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2020-09-25 06:13:46,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:46,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:46,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:46,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:13:46,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:46,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:13:46,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:46,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:46,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:46,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:46,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:46,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:46,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2020-09-25 06:13:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:46,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:46,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:46,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:13:46,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:46,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:13:46,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:46,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:46,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:46,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:46,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:46,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:46,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2020-09-25 06:13:46,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:46,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:46,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:46,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:13:46,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:46,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:13:46,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:46,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:46,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:46,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:46,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:46,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:46,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2020-09-25 06:13:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:46,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:46,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:46,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:13:46,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:46,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 06:13:46,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:46,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:46,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:46,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:46,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:46,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:46,827 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 06:13:46,828 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [246392259] [2020-09-25 06:13:46,828 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:13:46,828 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:13:46,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002265605] [2020-09-25 06:13:46,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:13:46,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:13:46,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:13:46,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:13:46,833 INFO L87 Difference]: Start difference. First operand 847 states and 923 transitions. Second operand 6 states. [2020-09-25 06:13:47,001 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-09-25 06:13:50,132 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-09-25 06:13:53,049 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-09-25 06:13:53,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:13:53,904 INFO L93 Difference]: Finished difference Result 1852 states and 2202 transitions. [2020-09-25 06:13:53,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 06:13:53,905 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 492 [2020-09-25 06:13:53,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:13:53,920 INFO L225 Difference]: With dead ends: 1852 [2020-09-25 06:13:53,920 INFO L226 Difference]: Without dead ends: 1339 [2020-09-25 06:13:53,923 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 06:13:53,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2020-09-25 06:13:54,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 871. [2020-09-25 06:13:54,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 871 states. [2020-09-25 06:13:54,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 958 transitions. [2020-09-25 06:13:54,010 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 958 transitions. Word has length 492 [2020-09-25 06:13:54,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:13:54,012 INFO L479 AbstractCegarLoop]: Abstraction has 871 states and 958 transitions. [2020-09-25 06:13:54,012 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:13:54,012 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 958 transitions. [2020-09-25 06:13:54,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2020-09-25 06:13:54,022 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:13:54,023 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 06:13:54,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:13:54,023 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:13:54,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:13:54,024 INFO L82 PathProgramCache]: Analyzing trace with hash -1164133881, now seen corresponding path program 1 times [2020-09-25 06:13:54,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:13:54,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1261880908] [2020-09-25 06:13:54,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:13:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:54,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:54,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:54,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:59,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:59,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 577 [2020-09-25 06:13:59,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:13:59,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 06:13:59,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:59,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:59,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:13:59,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 346 [2020-09-25 06:13:59,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:13:59,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:13:59,396 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-25 06:13:59,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:13:59,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:59,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:59,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:59,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 297 [2020-09-25 06:13:59,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:59,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-09-25 06:13:59,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:59,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:59,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:59,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:59,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:59,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:59,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2020-09-25 06:13:59,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:59,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:59,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:59,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:13:59,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:59,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 06:13:59,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:59,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:59,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:59,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:59,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:59,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:59,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-09-25 06:13:59,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:59,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:59,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:59,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:13:59,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:59,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 06:13:59,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:59,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:59,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:59,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:59,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:59,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:59,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2020-09-25 06:13:59,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:59,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:59,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:13:59,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:13:59,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:13:59,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:13:59,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:13:59,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:13:59,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:13:59,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:13:59,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:13:59,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:13:59,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2020-09-25 06:13:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:13:59,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:13:59,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:14:00,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:14:00,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 06:14:00,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:14:00,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-09-25 06:14:00,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:14:00,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:14:00,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:14:00,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 06:14:00,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:14:00,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:14:00,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 06:14:00,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:14:00,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:14:00,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:14:00,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:14:00,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:14:00,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 06:14:00,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:14:00,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:14:00,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:14:00,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:14:00,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:14:00,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:14:00,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:14:00,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:14:00,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:14:00,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:14:00,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:14:00,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:14:00,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:14:00,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:14:00,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:14:00,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:14:00,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:14:00,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:14:00,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:14:00,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 06:14:00,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:14:00,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:14:00,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:14:00,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:14:00,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:14:00,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 06:14:00,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:14:00,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:14:00,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:14:00,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:14:00,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:14:00,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:14:00,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-09-25 06:14:00,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:14:00,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:14:00,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:14:00,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:14:01,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:14:01,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 06:14:01,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:14:01,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 755 [2020-09-25 06:14:01,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:14:01,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:14:01,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:14:01,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-09-25 06:14:01,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:14:01,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:14:01,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:14:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:14:01,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:14:01,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:14:01,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:14:01,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:14:01,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:14:01,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:14:01,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:14:01,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:14:01,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:14:01,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:14:01,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:14:01,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:14:01,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:14:01,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:14:01,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:14:01,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:14:01,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:14:01,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 06:14:01,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:14:01,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:14:01,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:14:01,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:14:01,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:14:01,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:14:01,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 06:14:01,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:14:01,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:14:01,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:14:01,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:14:01,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:14:01,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:14:01,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:14:01,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:14:01,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:14:01,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:14:01,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:14:01,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:14:01,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2020-09-25 06:14:01,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:14:01,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:14:01,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:14:01,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:14:01,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:14:01,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 06:14:01,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:14:01,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 726 [2020-09-25 06:14:01,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:14:01,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:14:01,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:14:01,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-09-25 06:14:01,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:14:01,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:14:01,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 06:14:01,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:14:01,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:14:01,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:14:01,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:14:01,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:14:01,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 06:14:01,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:14:01,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:14:01,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:14:01,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:14:01,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:14:01,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:14:01,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:14:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:14:01,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:14:01,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:14:01,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:14:01,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:14:01,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 06:14:01,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:14:01,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:14:01,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:14:01,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:14:01,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:14:01,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:14:01,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 06:14:01,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:14:01,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:14:01,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:14:01,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:14:01,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:14:01,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 06:14:01,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:14:01,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:14:01,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:14:01,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:14:01,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:14:01,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:14:01,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2020-09-25 06:14:01,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:14:01,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:14:01,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:14:01,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 06:14:01,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:14:01,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 06:14:01,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:14:01,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:14:01,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:14:01,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 06:14:01,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:14:01,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:14:02,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:14:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:14:02,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:14:02,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:14:02,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 06:14:02,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:14:02,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 06:14:02,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:14:02,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 06:14:02,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:14:02,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:14:02,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:14:02,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:14:02,274 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 06:14:02,275 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1261880908] [2020-09-25 06:14:02,275 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:14:02,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:14:02,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195158062] [2020-09-25 06:14:02,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:14:02,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:14:02,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:14:02,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:14:02,278 INFO L87 Difference]: Start difference. First operand 871 states and 958 transitions. Second operand 6 states. [2020-09-25 06:14:02,412 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-09-25 06:14:03,679 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-09-25 06:14:03,896 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-09-25 06:14:10,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:14:10,153 INFO L93 Difference]: Finished difference Result 2349 states and 2811 transitions. [2020-09-25 06:14:10,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:14:10,154 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 528 [2020-09-25 06:14:10,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:14:10,166 INFO L225 Difference]: With dead ends: 2349 [2020-09-25 06:14:10,167 INFO L226 Difference]: Without dead ends: 1812 [2020-09-25 06:14:10,169 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 06:14:10,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2020-09-25 06:14:10,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 1188. [2020-09-25 06:14:10,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1188 states. [2020-09-25 06:14:10,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 1332 transitions. [2020-09-25 06:14:10,261 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 1332 transitions. Word has length 528 [2020-09-25 06:14:10,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:14:10,262 INFO L479 AbstractCegarLoop]: Abstraction has 1188 states and 1332 transitions. [2020-09-25 06:14:10,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:14:10,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 1332 transitions. [2020-09-25 06:14:10,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2020-09-25 06:14:10,274 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:14:10,275 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 06:14:10,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:14:10,275 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:14:10,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:14:10,276 INFO L82 PathProgramCache]: Analyzing trace with hash -2020239584, now seen corresponding path program 1 times [2020-09-25 06:14:10,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:14:10,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1442121418] [2020-09-25 06:14:10,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:14:10,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:14:10,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:14:10,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking...