/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 18:46:29,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 18:46:29,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 18:46:29,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 18:46:29,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 18:46:29,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 18:46:29,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 18:46:29,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 18:46:29,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 18:46:29,220 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 18:46:29,221 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 18:46:29,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 18:46:29,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 18:46:29,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 18:46:29,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 18:46:29,227 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 18:46:29,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 18:46:29,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 18:46:29,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 18:46:29,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 18:46:29,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 18:46:29,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 18:46:29,237 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 18:46:29,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 18:46:29,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 18:46:29,242 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 18:46:29,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 18:46:29,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 18:46:29,243 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 18:46:29,245 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 18:46:29,245 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 18:46:29,246 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 18:46:29,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 18:46:29,247 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 18:46:29,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 18:46:29,249 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 18:46:29,250 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 18:46:29,250 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 18:46:29,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 18:46:29,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 18:46:29,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 18:46:29,266 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 [2020-10-29 18:46:29,320 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 18:46:29,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 18:46:29,322 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 18:46:29,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 18:46:29,324 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 18:46:29,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 18:46:29,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 18:46:29,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 18:46:29,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 18:46:29,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 18:46:29,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 18:46:29,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 18:46:29,325 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 18:46:29,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 18:46:29,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 18:46:29,326 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 18:46:29,326 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 18:46:29,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 18:46:29,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 18:46:29,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 18:46:29,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 18:46:29,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 18:46:29,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 18:46:29,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 18:46:29,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 18:46:29,329 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 18:46:29,329 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-29 18:46:29,330 INFO L138 SettingsManager]: * To the following directory=dump/ WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 18:46:29,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 18:46:29,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 18:46:29,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 18:46:29,771 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 18:46:29,772 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 18:46:29,773 INFO L432 ainManager$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-kernel--locking--locktorture.ko-entry_point.cil.out.i [2020-10-29 18:46:29,844 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2552a8830/64408e104e46468c8d5cfac58e8cbda6/FLAG25b9825df [2020-10-29 18:46:30,683 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 18:46:30,687 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-kernel--locking--locktorture.ko-entry_point.cil.out.i [2020-10-29 18:46:30,719 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2552a8830/64408e104e46468c8d5cfac58e8cbda6/FLAG25b9825df [2020-10-29 18:46:30,838 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2552a8830/64408e104e46468c8d5cfac58e8cbda6 [2020-10-29 18:46:30,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 18:46:30,849 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 18:46:30,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 18:46:30,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 18:46:30,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 18:46:30,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:46:30" (1/1) ... [2020-10-29 18:46:30,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3418835b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:46:30, skipping insertion in model container [2020-10-29 18:46:30,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:46:30" (1/1) ... [2020-10-29 18:46:30,871 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 18:46:30,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 18:46:31,392 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1764] [2020-10-29 18:46:31,393 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1765-1766] [2020-10-29 18:46:31,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 18:46:31,791 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 18:46:31,894 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1764] [2020-10-29 18:46:31,894 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1765-1766] [2020-10-29 18:46:32,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 18:46:32,197 INFO L208 MainTranslator]: Completed translation [2020-10-29 18:46:32,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:46:32 WrapperNode [2020-10-29 18:46:32,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 18:46:32,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 18:46:32,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 18:46:32,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 18:46:32,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:46:32" (1/1) ... [2020-10-29 18:46:32,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:46:32" (1/1) ... [2020-10-29 18:46:32,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:46:32" (1/1) ... [2020-10-29 18:46:32,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:46:32" (1/1) ... [2020-10-29 18:46:32,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:46:32" (1/1) ... [2020-10-29 18:46:32,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:46:32" (1/1) ... [2020-10-29 18:46:32,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:46:32" (1/1) ... [2020-10-29 18:46:32,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 18:46:32,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 18:46:32,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 18:46:32,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 18:46:32,430 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:46:32" (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 [2020-10-29 18:46:32,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 18:46:32,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 18:46:32,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~int [2020-10-29 18:46:32,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-29 18:46:32,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2020-10-29 18:46:32,523 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 18:46:32,523 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2020-10-29 18:46:32,523 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_weight [2020-10-29 18:46:32,523 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2020-10-29 18:46:32,523 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-10-29 18:46:32,523 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2020-10-29 18:46:32,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_1 [2020-10-29 18:46:32,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_5 [2020-10-29 18:46:32,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_8 [2020-10-29 18:46:32,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-29 18:46:32,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmalloc_12 [2020-10-29 18:46:32,524 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 18:46:32,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-29 18:46:32,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-29 18:46:32,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-29 18:46:32,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-29 18:46:32,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-29 18:46:32,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-29 18:46:32,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-29 18:46:32,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-29 18:46:32,526 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_lock [2020-10-29 18:46:32,526 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_delay [2020-10-29 18:46:32,526 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_unlock [2020-10-29 18:46:32,526 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_lock [2020-10-29 18:46:32,526 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_delay [2020-10-29 18:46:32,526 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_unlock [2020-10-29 18:46:32,527 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_lock_irq [2020-10-29 18:46:32,527 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_spin_write_unlock_irq [2020-10-29 18:46:32,527 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_writer [2020-10-29 18:46:32,527 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_printk [2020-10-29 18:46:32,527 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_stats_print [2020-10-29 18:46:32,527 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_stats [2020-10-29 18:46:32,527 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_print_module_parms [2020-10-29 18:46:32,528 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_cleanup [2020-10-29 18:46:32,528 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_init [2020-10-29 18:46:32,528 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 18:46:32,528 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2020-10-29 18:46:32,528 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2020-10-29 18:46:32,528 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-29 18:46:32,528 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-29 18:46:32,528 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-29 18:46:32,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-10-29 18:46:32,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-29 18:46:32,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-10-29 18:46:32,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-10-29 18:46:32,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-10-29 18:46:32,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-10-29 18:46:32,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitmap_weight [2020-10-29 18:46:32,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-10-29 18:46:32,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2020-10-29 18:46:32,530 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2020-10-29 18:46:32,530 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2020-10-29 18:46:32,530 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-29 18:46:32,530 INFO L138 BoogieDeclarations]: Found implementation of procedure _torture_create_kthread [2020-10-29 18:46:32,531 INFO L138 BoogieDeclarations]: Found implementation of procedure _torture_stop_kthread [2020-10-29 18:46:32,531 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-10-29 18:46:32,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-29 18:46:32,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-29 18:46:32,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2020-10-29 18:46:32,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_2 [2020-10-29 18:46:32,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_3 [2020-10-29 18:46:32,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-10-29 18:46:32,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2020-10-29 18:46:32,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_3 [2020-10-29 18:46:32,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-10-29 18:46:32,532 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-29 18:46:32,532 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2020-10-29 18:46:32,532 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2020-10-29 18:46:32,533 INFO L138 BoogieDeclarations]: Found implementation of procedure set_user_nice [2020-10-29 18:46:32,533 INFO L138 BoogieDeclarations]: Found implementation of procedure stutter_wait [2020-10-29 18:46:32,533 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_cleanup [2020-10-29 18:46:32,533 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_init_begin [2020-10-29 18:46:32,533 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_init_end [2020-10-29 18:46:32,533 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_kthread_stopping [2020-10-29 18:46:32,533 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_must_stop [2020-10-29 18:46:32,534 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_onoff_failures [2020-10-29 18:46:32,534 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_onoff_init [2020-10-29 18:46:32,534 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_random [2020-10-29 18:46:32,534 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_shuffle_init [2020-10-29 18:46:32,534 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_shutdown_absorb [2020-10-29 18:46:32,534 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_shutdown_init [2020-10-29 18:46:32,534 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_stutter_init [2020-10-29 18:46:32,535 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-29 18:46:32,535 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-29 18:46:32,535 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-29 18:46:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 18:46:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 18:46:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-29 18:46:32,536 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-29 18:46:32,536 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 18:46:32,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 18:46:32,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-29 18:46:32,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-10-29 18:46:32,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-10-29 18:46:32,536 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-29 18:46:32,536 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-10-29 18:46:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-10-29 18:46:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-29 18:46:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2020-10-29 18:46:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-10-29 18:46:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure __bitmap_weight [2020-10-29 18:46:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_weight [2020-10-29 18:46:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2020-10-29 18:46:32,538 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-10-29 18:46:32,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 18:46:32,538 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2020-10-29 18:46:32,538 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2020-10-29 18:46:32,538 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2020-10-29 18:46:32,538 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-29 18:46:32,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_1 [2020-10-29 18:46:32,539 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2020-10-29 18:46:32,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_5 [2020-10-29 18:46:32,539 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2020-10-29 18:46:32,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_8 [2020-10-29 18:46:32,539 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-29 18:46:32,539 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-29 18:46:32,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-29 18:46:32,540 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-29 18:46:32,540 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-10-29 18:46:32,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmalloc_12 [2020-10-29 18:46:32,540 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-29 18:46:32,540 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-29 18:46:32,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-10-29 18:46:32,540 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 18:46:32,541 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-29 18:46:32,541 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 18:46:32,541 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-29 18:46:32,541 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 18:46:32,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 18:46:32,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-29 18:46:32,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-29 18:46:32,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-29 18:46:32,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-29 18:46:32,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-29 18:46:32,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-29 18:46:32,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-29 18:46:32,542 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2020-10-29 18:46:32,542 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2020-10-29 18:46:32,543 INFO L130 BoogieDeclarations]: Found specification of procedure set_user_nice [2020-10-29 18:46:32,543 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2020-10-29 18:46:32,543 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-10-29 18:46:32,543 INFO L130 BoogieDeclarations]: Found specification of procedure torture_onoff_init [2020-10-29 18:46:32,543 INFO L130 BoogieDeclarations]: Found specification of procedure torture_onoff_failures [2020-10-29 18:46:32,543 INFO L130 BoogieDeclarations]: Found specification of procedure torture_random [2020-10-29 18:46:32,543 INFO L130 BoogieDeclarations]: Found specification of procedure torture_shuffle_init [2020-10-29 18:46:32,544 INFO L130 BoogieDeclarations]: Found specification of procedure torture_shutdown_absorb [2020-10-29 18:46:32,544 INFO L130 BoogieDeclarations]: Found specification of procedure torture_shutdown_init [2020-10-29 18:46:32,544 INFO L130 BoogieDeclarations]: Found specification of procedure stutter_wait [2020-10-29 18:46:32,544 INFO L130 BoogieDeclarations]: Found specification of procedure torture_stutter_init [2020-10-29 18:46:32,544 INFO L130 BoogieDeclarations]: Found specification of procedure torture_init_begin [2020-10-29 18:46:32,544 INFO L130 BoogieDeclarations]: Found specification of procedure torture_init_end [2020-10-29 18:46:32,544 INFO L130 BoogieDeclarations]: Found specification of procedure torture_cleanup [2020-10-29 18:46:32,544 INFO L130 BoogieDeclarations]: Found specification of procedure torture_must_stop [2020-10-29 18:46:32,545 INFO L130 BoogieDeclarations]: Found specification of procedure torture_kthread_stopping [2020-10-29 18:46:32,545 INFO L130 BoogieDeclarations]: Found specification of procedure _torture_create_kthread [2020-10-29 18:46:32,545 INFO L130 BoogieDeclarations]: Found specification of procedure _torture_stop_kthread [2020-10-29 18:46:32,545 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_cleanup [2020-10-29 18:46:32,545 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_lock [2020-10-29 18:46:32,545 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_delay [2020-10-29 18:46:32,545 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_unlock [2020-10-29 18:46:32,545 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_lock [2020-10-29 18:46:32,546 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_delay [2020-10-29 18:46:32,546 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_unlock [2020-10-29 18:46:32,546 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_lock_irq [2020-10-29 18:46:32,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 18:46:32,546 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_spin_write_unlock_irq [2020-10-29 18:46:32,546 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_writer [2020-10-29 18:46:32,546 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~int [2020-10-29 18:46:32,546 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-29 18:46:32,546 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2020-10-29 18:46:32,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-29 18:46:32,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 18:46:32,547 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_printk [2020-10-29 18:46:32,547 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_stats_print [2020-10-29 18:46:32,547 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_stats [2020-10-29 18:46:32,547 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_print_module_parms [2020-10-29 18:46:32,547 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_init [2020-10-29 18:46:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-29 18:46:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2020-10-29 18:46:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-29 18:46:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2020-10-29 18:46:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-29 18:46:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_3 [2020-10-29 18:46:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_3 [2020-10-29 18:46:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_2 [2020-10-29 18:46:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-10-29 18:46:32,549 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 18:46:32,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-10-29 18:46:32,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-29 18:46:32,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-10-29 18:46:32,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-10-29 18:46:32,549 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-29 18:46:32,549 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-29 18:46:32,549 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-29 18:46:32,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 18:46:32,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 18:46:32,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-29 18:46:32,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 18:46:33,110 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-29 18:46:44,972 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 18:46:44,972 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-29 18:46:44,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:46:44 BoogieIcfgContainer [2020-10-29 18:46:44,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 18:46:44,981 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 18:46:44,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 18:46:44,985 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 18:46:44,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 06:46:30" (1/3) ... [2020-10-29 18:46:44,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18647895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:46:44, skipping insertion in model container [2020-10-29 18:46:44,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:46:32" (2/3) ... [2020-10-29 18:46:44,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18647895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:46:44, skipping insertion in model container [2020-10-29 18:46:44,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:46:44" (3/3) ... [2020-10-29 18:46:44,989 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i [2020-10-29 18:46:45,002 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 18:46:45,008 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 18:46:45,021 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 18:46:45,067 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 18:46:45,067 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 18:46:45,068 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 18:46:45,068 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 18:46:45,068 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 18:46:45,068 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 18:46:45,068 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 18:46:45,068 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 18:46:45,108 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states. [2020-10-29 18:46:45,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-29 18:46:45,138 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 18:46:45,139 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 18:46:45,139 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 18:46:45,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 18:46:45,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1028992447, now seen corresponding path program 1 times [2020-10-29 18:46:45,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 18:46:45,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1083311790] [2020-10-29 18:46:45,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 18:46:45,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:46:45,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:46:45,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:46:48,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:46:48,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-29 18:46:48,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 18:46:48,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2891 [2020-10-29 18:46:48,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:46:48,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:46:48,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 18:46:48,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 18:46:48,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-29 18:46:48,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 18:46:50,020 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 409 [2020-10-29 18:46:50,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 18:46:50,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:46:50,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:46:50,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:46:50,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:46:50,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:46:50,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-10-29 18:46:50,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:46:50,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:46:50,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 18:46:50,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:46:50,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 18:46:50,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:46:50,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 18:46:50,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:46:50,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:46:50,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:46:50,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 18:46:50,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:46:50,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 18:46:50,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:46:50,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:46:50,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 18:46:50,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:46:50,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 18:46:50,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:46:50,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 18:46:50,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:46:50,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:46:50,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:46:50,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 18:46:50,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:46:50,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 18:46:50,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:46:50,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:46:50,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 18:46:50,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:46:50,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 18:46:50,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:46:50,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 18:46:50,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:46:50,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:46:50,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:46:50,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 18:46:50,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:46:50,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 18:46:50,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:46:50,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:46:50,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 18:46:50,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:46:50,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 18:46:50,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:46:50,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 18:46:50,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:46:50,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:46:50,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:46:50,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 18:46:50,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:46:50,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 18:46:50,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:46:50,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:46:50,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 18:46:50,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:46:50,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 18:46:50,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:46:50,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 18:46:50,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:46:50,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:46:50,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:46:50,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:46:50,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:46:50,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 18:46:50,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:46:50,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:46:50,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 18:46:50,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:46:50,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 18:46:50,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:46:50,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 18:46:50,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:46:50,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:46:50,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:46:50,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:46:50,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:46:50,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 18:46:50,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:46:50,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:46:50,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 18:46:50,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:46:50,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 18:46:50,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:46:50,572 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-29 18:46:50,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1083311790] [2020-10-29 18:46:50,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 18:46:50,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 18:46:50,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958632428] [2020-10-29 18:46:50,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 18:46:50,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 18:46:50,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 18:46:50,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 18:46:50,599 INFO L87 Difference]: Start difference. First operand 583 states. Second operand 5 states. [2020-10-29 18:46:51,818 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 412 [2020-10-29 18:46:53,500 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 414 [2020-10-29 18:46:54,748 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 411 [2020-10-29 18:47:24,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 18:47:24,239 INFO L93 Difference]: Finished difference Result 1652 states and 2302 transitions. [2020-10-29 18:47:24,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 18:47:24,241 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-10-29 18:47:24,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 18:47:24,273 INFO L225 Difference]: With dead ends: 1652 [2020-10-29 18:47:24,274 INFO L226 Difference]: Without dead ends: 1127 [2020-10-29 18:47:24,287 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-29 18:47:24,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2020-10-29 18:47:24,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 845. [2020-10-29 18:47:24,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 845 states. [2020-10-29 18:47:24,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1096 transitions. [2020-10-29 18:47:24,661 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1096 transitions. Word has length 58 [2020-10-29 18:47:24,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 18:47:24,662 INFO L481 AbstractCegarLoop]: Abstraction has 845 states and 1096 transitions. [2020-10-29 18:47:24,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 18:47:24,662 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1096 transitions. [2020-10-29 18:47:24,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-29 18:47:24,673 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 18:47:24,673 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-10-29 18:47:24,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 18:47:24,674 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 18:47:24,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 18:47:24,674 INFO L82 PathProgramCache]: Analyzing trace with hash -364545099, now seen corresponding path program 1 times [2020-10-29 18:47:24,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 18:47:24,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1231758693] [2020-10-29 18:47:24,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 18:47:24,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:47:24,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:47:25,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:47:25,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:47:26,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:47:26,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-29 18:47:26,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 18:47:26,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1472 [2020-10-29 18:47:26,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:47:26,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:47:26,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 18:47:26,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-29 18:47:26,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 18:47:26,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 18:47:27,529 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 409 [2020-10-29 18:47:27,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 18:47:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:47:27,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:47:27,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:47:27,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:47:27,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:47:27,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-29 18:47:27,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:47:27,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:47:27,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:47:27,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:47:27,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:47:27,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:47:27,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 18:47:27,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:47:27,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:47:27,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:47:27,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 18:47:27,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:47:27,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 18:47:27,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:47:27,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:47:27,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:47:27,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:47:27,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:47:27,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:47:27,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 18:47:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:47:27,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:47:27,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:47:27,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 18:47:27,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:47:27,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 18:47:27,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:47:27,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:47:27,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:47:27,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:47:27,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:47:27,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:47:27,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 18:47:27,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:47:27,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:47:27,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:47:27,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 18:47:27,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:47:27,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 18:47:27,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:47:27,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:47:27,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:47:27,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:47:27,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:47:27,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:47:27,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 18:47:27,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:47:27,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:47:27,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:47:27,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 18:47:27,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:47:27,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 18:47:27,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:47:27,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:47:27,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:47:27,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:47:27,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:47:27,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:47:27,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 18:47:27,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:47:27,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:47:27,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:47:27,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 18:47:27,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:47:27,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 18:47:27,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:47:27,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:47:27,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 18:47:27,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:47:27,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-29 18:47:27,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:47:27,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 18:47:27,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:47:27,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:47:27,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:47:27,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:47:27,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:47:27,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 18:47:27,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:47:27,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:47:27,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:47:27,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:47:27,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:47:27,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:47:27,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 18:47:27,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:47:27,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:47:27,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:47:27,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:47:27,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:47:27,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 18:47:27,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:47:27,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:47:27,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:47:27,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 18:47:27,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:47:27,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:47:27,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 18:47:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:47:27,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:47:27,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:47:27,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:47:27,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:47:27,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 18:47:27,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:47:27,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:47:27,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:47:27,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 18:47:27,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:47:27,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:47:27,873 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-29 18:47:27,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1231758693] [2020-10-29 18:47:27,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 18:47:27,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 18:47:27,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728977756] [2020-10-29 18:47:27,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 18:47:27,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 18:47:27,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 18:47:27,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-29 18:47:27,877 INFO L87 Difference]: Start difference. First operand 845 states and 1096 transitions. Second operand 7 states. [2020-10-29 18:47:29,003 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 418 [2020-10-29 18:47:30,878 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification that was a NOOP. DAG size: 420 [2020-10-29 18:47:32,245 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 411 [2020-10-29 18:47:58,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 18:47:58,378 INFO L93 Difference]: Finished difference Result 2052 states and 2905 transitions. [2020-10-29 18:47:58,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 18:47:58,385 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 73 [2020-10-29 18:47:58,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 18:47:58,399 INFO L225 Difference]: With dead ends: 2052 [2020-10-29 18:47:58,400 INFO L226 Difference]: Without dead ends: 1846 [2020-10-29 18:47:58,402 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-29 18:47:58,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2020-10-29 18:47:58,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1220. [2020-10-29 18:47:58,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1220 states. [2020-10-29 18:47:58,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1619 transitions. [2020-10-29 18:47:58,729 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1619 transitions. Word has length 73 [2020-10-29 18:47:58,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 18:47:58,729 INFO L481 AbstractCegarLoop]: Abstraction has 1220 states and 1619 transitions. [2020-10-29 18:47:58,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 18:47:58,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1619 transitions. [2020-10-29 18:47:58,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-29 18:47:58,734 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 18:47:58,734 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-10-29 18:47:58,735 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 18:47:58,735 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 18:47:58,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 18:47:58,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1171022240, now seen corresponding path program 1 times [2020-10-29 18:47:58,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 18:47:58,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1832860859] [2020-10-29 18:47:58,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 18:47:58,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:47:58,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:47:58,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:47:59,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:47:59,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:48:01,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:48:01,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-29 18:48:01,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 18:48:01,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3164 [2020-10-29 18:48:01,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:48:01,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:48:01,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 18:48:01,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 18:48:01,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-29 18:48:01,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:48:03,225 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 409 [2020-10-29 18:48:03,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 18:48:03,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:48:03,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:48:03,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:48:03,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:48:03,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:48:03,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 263 [2020-10-29 18:48:03,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:48:03,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:48:03,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 18:48:03,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:48:03,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 18:48:03,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:48:03,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 18:48:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:48:03,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:48:03,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:48:03,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 18:48:03,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:48:03,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 18:48:03,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:48:03,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:48:03,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 18:48:03,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:48:03,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 18:48:03,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 18:48:03,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 18:48:03,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:48:03,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:48:03,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:48:03,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 18:48:03,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:48:03,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 18:48:03,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:48:03,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:48:03,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 18:48:03,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:48:03,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 18:48:03,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:48:03,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 18:48:03,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:48:03,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:48:03,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:48:03,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 18:48:03,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:48:03,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 18:48:03,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:48:03,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:48:03,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 18:48:03,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:48:03,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 18:48:03,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 18:48:03,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 18:48:03,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:48:03,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:48:03,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:48:03,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 18:48:03,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:48:03,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 18:48:03,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:48:03,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:48:03,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 18:48:03,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:48:03,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 18:48:03,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:48:03,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 18:48:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:48:03,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:48:03,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:48:03,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 18:48:03,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:48:03,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 18:48:03,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:48:03,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:48:03,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 18:48:03,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:48:03,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-29 18:48:03,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:48:03,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 18:48:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:48:03,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:48:03,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:48:03,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:48:03,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:48:03,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 18:48:03,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:48:03,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:48:03,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:48:03,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:48:03,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:48:03,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:48:03,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 18:48:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:48:03,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:48:03,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:48:03,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:48:03,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:48:03,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 18:48:03,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:48:03,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:48:03,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 18:48:03,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:48:03,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 18:48:03,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:48:03,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 18:48:03,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:48:03,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:48:03,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:48:03,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:48:03,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:48:03,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 18:48:03,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:48:03,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:48:03,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:48:03,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 18:48:03,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:48:03,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:48:03,770 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-29 18:48:03,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1832860859] [2020-10-29 18:48:03,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 18:48:03,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 18:48:03,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610450174] [2020-10-29 18:48:03,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 18:48:03,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 18:48:03,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 18:48:03,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-29 18:48:03,773 INFO L87 Difference]: Start difference. First operand 1220 states and 1619 transitions. Second operand 7 states. [2020-10-29 18:48:04,986 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 418 [2020-10-29 18:48:06,761 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 422 [2020-10-29 18:48:08,123 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 413 [2020-10-29 18:48:26,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 18:48:26,621 INFO L93 Difference]: Finished difference Result 2990 states and 4196 transitions. [2020-10-29 18:48:26,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 18:48:26,624 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2020-10-29 18:48:26,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 18:48:26,637 INFO L225 Difference]: With dead ends: 2990 [2020-10-29 18:48:26,637 INFO L226 Difference]: Without dead ends: 1797 [2020-10-29 18:48:26,643 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-29 18:48:26,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1797 states. [2020-10-29 18:48:26,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1797 to 1228. [2020-10-29 18:48:26,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1228 states. [2020-10-29 18:48:26,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1625 transitions. [2020-10-29 18:48:26,951 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1625 transitions. Word has length 77 [2020-10-29 18:48:26,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 18:48:26,951 INFO L481 AbstractCegarLoop]: Abstraction has 1228 states and 1625 transitions. [2020-10-29 18:48:26,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 18:48:26,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1625 transitions. [2020-10-29 18:48:26,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-29 18:48:26,956 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 18:48:26,957 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-10-29 18:48:26,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 18:48:26,957 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 18:48:26,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 18:48:26,958 INFO L82 PathProgramCache]: Analyzing trace with hash 876311269, now seen corresponding path program 1 times [2020-10-29 18:48:26,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 18:48:26,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [211135581] [2020-10-29 18:48:26,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 18:48:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:48:27,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:48:27,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:48:27,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:48:29,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:48:29,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-29 18:48:29,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 18:48:29,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2315 [2020-10-29 18:48:29,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:48:29,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:48:29,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 18:48:29,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-29 18:48:29,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 18:48:29,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:48:30,642 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 409 [2020-10-29 18:48:30,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 18:48:30,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:48:30,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:48:30,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:48:30,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:48:30,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:48:30,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-29 18:48:30,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:48:30,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:48:30,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:48:30,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:48:30,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:48:30,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:48:30,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 18:48:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:48:30,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:48:30,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:48:30,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 18:48:30,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:48:30,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 18:48:30,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:48:30,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:48:30,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:48:30,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:48:30,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:48:30,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:48:30,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 18:48:30,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:48:30,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:48:30,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:48:30,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 18:48:30,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:48:30,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 18:48:30,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:48:30,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:48:30,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:48:30,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:48:30,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:48:30,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:48:30,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 18:48:30,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:48:30,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:48:30,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:48:30,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 18:48:30,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:48:30,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 18:48:30,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:48:30,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:48:30,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:48:30,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:48:30,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:48:30,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:48:30,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 18:48:30,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:48:30,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:48:30,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:48:30,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 18:48:30,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:48:30,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 18:48:30,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:48:30,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:48:30,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:48:30,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:48:30,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:48:30,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:48:30,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 18:48:30,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:48:30,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:48:30,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:48:30,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 18:48:30,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:48:30,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 18:48:30,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:48:30,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:48:30,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:48:30,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 18:48:30,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:48:30,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:48:30,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 18:48:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:48:30,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:48:30,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:48:30,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:48:30,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:48:30,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 18:48:30,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:48:30,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:48:30,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:48:30,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:48:30,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:48:30,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:48:30,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 18:48:30,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:48:30,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:48:30,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:48:30,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:48:30,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:48:30,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 18:48:30,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:48:30,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:48:30,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:48:30,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 18:48:30,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:48:30,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:48:30,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 18:48:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:48:30,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:48:30,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:48:30,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:48:30,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:48:30,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 18:48:30,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:48:30,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:48:30,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:48:30,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 18:48:30,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:48:30,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:48:30,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 18:48:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:48:30,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:48:30,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:48:30,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:48:30,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:48:30,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 18:48:30,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:48:30,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:48:30,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:48:30,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 18:48:30,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:48:30,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:48:30,964 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-29 18:48:30,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [211135581] [2020-10-29 18:48:30,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 18:48:30,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 18:48:30,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390712051] [2020-10-29 18:48:30,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 18:48:30,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 18:48:30,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 18:48:30,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-29 18:48:30,967 INFO L87 Difference]: Start difference. First operand 1228 states and 1625 transitions. Second operand 7 states. [2020-10-29 18:48:32,248 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 418 [2020-10-29 18:48:34,163 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification that was a NOOP. DAG size: 420 [2020-10-29 18:48:35,570 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 411 [2020-10-29 18:49:00,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 18:49:00,083 INFO L93 Difference]: Finished difference Result 4260 states and 5964 transitions. [2020-10-29 18:49:00,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 18:49:00,084 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2020-10-29 18:49:00,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 18:49:00,104 INFO L225 Difference]: With dead ends: 4260 [2020-10-29 18:49:00,104 INFO L226 Difference]: Without dead ends: 3059 [2020-10-29 18:49:00,109 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-29 18:49:00,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3059 states. [2020-10-29 18:49:00,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3059 to 2247. [2020-10-29 18:49:00,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2247 states. [2020-10-29 18:49:00,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2247 states to 2247 states and 2985 transitions. [2020-10-29 18:49:00,622 INFO L78 Accepts]: Start accepts. Automaton has 2247 states and 2985 transitions. Word has length 88 [2020-10-29 18:49:00,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 18:49:00,623 INFO L481 AbstractCegarLoop]: Abstraction has 2247 states and 2985 transitions. [2020-10-29 18:49:00,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 18:49:00,623 INFO L276 IsEmpty]: Start isEmpty. Operand 2247 states and 2985 transitions. [2020-10-29 18:49:00,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-29 18:49:00,631 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 18:49:00,632 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2020-10-29 18:49:00,632 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 18:49:00,632 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 18:49:00,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 18:49:00,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1372436140, now seen corresponding path program 1 times [2020-10-29 18:49:00,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 18:49:00,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [298675714] [2020-10-29 18:49:00,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 18:49:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:49:00,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:00,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:00,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:01,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:05,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:49:05,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-29 18:49:05,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 18:49:05,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4715 [2020-10-29 18:49:05,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:49:05,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:49:05,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 18:49:05,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-10-29 18:49:05,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 18:49:05,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:49:06,752 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 409 [2020-10-29 18:49:06,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 18:49:06,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:49:06,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:06,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:49:06,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:49:06,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:49:06,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-29 18:49:06,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:49:06,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:49:06,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:49:06,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:49:06,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:49:06,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:49:06,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 18:49:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:49:06,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:06,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:49:06,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 18:49:06,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:49:06,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 18:49:06,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:49:06,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:49:06,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:49:06,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:49:06,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:49:06,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:49:06,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 18:49:06,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:49:06,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:06,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:49:06,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 18:49:06,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:49:06,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 18:49:06,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:49:06,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:49:06,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:49:06,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:49:06,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:49:06,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:49:06,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 18:49:06,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:49:06,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:06,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:49:06,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 18:49:06,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:49:06,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 18:49:06,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:49:06,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:49:06,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:49:06,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:49:06,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:49:06,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:49:06,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 18:49:07,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:49:07,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:07,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:49:07,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 18:49:07,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:49:07,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 18:49:07,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:49:07,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:49:07,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:49:07,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:49:07,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:49:07,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:49:07,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 18:49:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:49:07,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:07,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:07,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:49:07,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 18:49:07,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 18:49:07,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 18:49:07,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:49:07,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:49:07,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 18:49:07,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-29 18:49:07,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 18:49:07,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:49:07,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 18:49:07,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:49:07,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:07,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:49:07,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:49:07,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:49:07,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 18:49:07,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:49:07,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:49:07,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:49:07,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:49:07,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:49:07,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:49:07,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 18:49:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:49:07,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:07,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:49:07,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 18:49:07,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:49:07,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 18:49:07,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:49:07,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:49:07,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:49:07,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 18:49:07,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:49:07,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:49:07,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 18:49:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:49:07,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:07,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:49:07,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:49:07,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:49:07,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 18:49:07,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:49:07,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:49:07,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:49:07,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:49:07,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:49:07,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:49:07,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-29 18:49:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:49:07,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:07,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:49:07,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:49:07,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:49:07,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 18:49:07,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:49:07,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:49:07,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:49:07,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 18:49:07,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:49:07,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:49:07,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-29 18:49:07,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:49:07,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:07,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:49:07,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:49:07,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:49:07,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 18:49:07,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:49:07,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:49:07,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:49:07,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 18:49:07,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:49:07,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:49:07,259 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-29 18:49:07,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [298675714] [2020-10-29 18:49:07,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 18:49:07,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-29 18:49:07,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99711311] [2020-10-29 18:49:07,265 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 18:49:07,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 18:49:07,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 18:49:07,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-29 18:49:07,266 INFO L87 Difference]: Start difference. First operand 2247 states and 2985 transitions. Second operand 9 states. [2020-10-29 18:49:08,509 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 418 [2020-10-29 18:49:10,385 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification that was a NOOP. DAG size: 420 [2020-10-29 18:49:11,775 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 411 [2020-10-29 18:49:38,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 18:49:38,256 INFO L93 Difference]: Finished difference Result 6569 states and 9106 transitions. [2020-10-29 18:49:38,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 18:49:38,257 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-10-29 18:49:38,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 18:49:38,287 INFO L225 Difference]: With dead ends: 6569 [2020-10-29 18:49:38,287 INFO L226 Difference]: Without dead ends: 4349 [2020-10-29 18:49:38,296 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2020-10-29 18:49:38,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4349 states. [2020-10-29 18:49:39,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4349 to 3269. [2020-10-29 18:49:39,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3269 states. [2020-10-29 18:49:39,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3269 states to 3269 states and 4357 transitions. [2020-10-29 18:49:39,232 INFO L78 Accepts]: Start accepts. Automaton has 3269 states and 4357 transitions. Word has length 94 [2020-10-29 18:49:39,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 18:49:39,232 INFO L481 AbstractCegarLoop]: Abstraction has 3269 states and 4357 transitions. [2020-10-29 18:49:39,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 18:49:39,232 INFO L276 IsEmpty]: Start isEmpty. Operand 3269 states and 4357 transitions. [2020-10-29 18:49:39,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-29 18:49:39,241 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 18:49:39,242 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-10-29 18:49:39,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 18:49:39,242 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 18:49:39,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 18:49:39,243 INFO L82 PathProgramCache]: Analyzing trace with hash -4474175, now seen corresponding path program 1 times [2020-10-29 18:49:39,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 18:49:39,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1859455151] [2020-10-29 18:49:39,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 18:49:39,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:49:39,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:39,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:39,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:40,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:49:40,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-29 18:49:40,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 18:49:40,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1666 [2020-10-29 18:49:40,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:49:40,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:49:40,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 18:49:40,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-29 18:49:40,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 18:49:40,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:49:42,166 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 409 [2020-10-29 18:49:42,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 18:49:42,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:49:42,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:42,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:49:42,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:49:42,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:49:42,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-29 18:49:42,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:49:42,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:49:42,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:49:42,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:49:42,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:49:42,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:49:42,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 18:49:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:49:42,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:42,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:49:42,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 18:49:42,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:49:42,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 18:49:42,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:49:42,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:49:42,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:49:42,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:49:42,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:49:42,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:49:42,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 18:49:42,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:49:42,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:42,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:49:42,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 18:49:42,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:49:42,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 18:49:42,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:49:42,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:49:42,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:49:42,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:49:42,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:49:42,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:49:42,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 18:49:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:49:42,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:42,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:49:42,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 18:49:42,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:49:42,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 18:49:42,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:49:42,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:49:42,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:49:42,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:49:42,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:49:42,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:49:42,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 18:49:42,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:49:42,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:42,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:49:42,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 18:49:42,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:49:42,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 18:49:42,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:49:42,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:49:42,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:49:42,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:49:42,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:49:42,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:49:42,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 18:49:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:49:42,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:42,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:49:42,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-29 18:49:42,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:49:42,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 18:49:42,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:49:42,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:49:42,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:49:42,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-29 18:49:42,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:49:42,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:49:42,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 18:49:42,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:49:42,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:42,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:49:42,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 18:49:42,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:49:42,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 18:49:42,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:49:42,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:49:42,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:49:42,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:49:42,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:49:42,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:49:42,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 18:49:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:49:42,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:42,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:49:42,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:49:42,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:49:42,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 18:49:42,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:49:42,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:49:42,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:49:42,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:49:42,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:49:42,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:49:42,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 18:49:42,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:49:42,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:42,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:49:42,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 18:49:42,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:49:42,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 18:49:42,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:49:42,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:49:42,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:49:42,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:49:42,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:49:42,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:49:42,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 18:49:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:49:42,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:42,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:49:42,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:49:42,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:49:42,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 18:49:42,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:49:42,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:49:42,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:49:42,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:49:42,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:49:42,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:49:42,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 18:49:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:49:42,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:42,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:49:42,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:49:42,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:49:42,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 18:49:42,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:49:42,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:49:42,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:49:42,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 18:49:42,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:49:42,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:49:42,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 18:49:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:49:42,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:42,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:49:42,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:49:42,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:49:42,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 18:49:42,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:49:42,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:49:42,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:49:42,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 18:49:42,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:49:42,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:49:42,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 18:49:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:49:42,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:49:42,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:49:42,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:49:42,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:49:42,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 18:49:42,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:49:42,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:49:42,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:49:42,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 18:49:42,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:49:42,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:49:42,448 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-29 18:49:42,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1859455151] [2020-10-29 18:49:42,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 18:49:42,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 18:49:42,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481431452] [2020-10-29 18:49:42,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 18:49:42,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 18:49:42,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 18:49:42,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-29 18:49:42,451 INFO L87 Difference]: Start difference. First operand 3269 states and 4357 transitions. Second operand 6 states. [2020-10-29 18:49:43,634 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 412 [2020-10-29 18:49:45,349 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 414 [2020-10-29 18:49:46,627 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 411 [2020-10-29 18:50:14,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 18:50:14,789 INFO L93 Difference]: Finished difference Result 10611 states and 14574 transitions. [2020-10-29 18:50:14,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 18:50:14,789 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2020-10-29 18:50:14,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 18:50:14,832 INFO L225 Difference]: With dead ends: 10611 [2020-10-29 18:50:14,832 INFO L226 Difference]: Without dead ends: 7369 [2020-10-29 18:50:14,844 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-29 18:50:14,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7369 states. [2020-10-29 18:50:16,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7369 to 5938. [2020-10-29 18:50:16,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5938 states. [2020-10-29 18:50:16,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5938 states to 5938 states and 7915 transitions. [2020-10-29 18:50:16,535 INFO L78 Accepts]: Start accepts. Automaton has 5938 states and 7915 transitions. Word has length 102 [2020-10-29 18:50:16,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 18:50:16,535 INFO L481 AbstractCegarLoop]: Abstraction has 5938 states and 7915 transitions. [2020-10-29 18:50:16,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 18:50:16,536 INFO L276 IsEmpty]: Start isEmpty. Operand 5938 states and 7915 transitions. [2020-10-29 18:50:16,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-29 18:50:16,551 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 18:50:16,551 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2020-10-29 18:50:16,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 18:50:16,552 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 18:50:16,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 18:50:16,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1291893170, now seen corresponding path program 1 times [2020-10-29 18:50:16,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 18:50:16,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1938857178] [2020-10-29 18:50:16,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 18:50:16,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:50:16,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:50:16,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:50:17,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:50:18,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:50:18,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-29 18:50:18,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 18:50:18,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2311 [2020-10-29 18:50:18,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:50:18,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:50:18,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 18:50:18,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-10-29 18:50:18,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 18:50:18,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:50:20,176 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 409 [2020-10-29 18:50:20,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 18:50:20,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:50:20,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:50:20,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:50:20,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:50:20,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:50:20,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-29 18:50:20,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:50:20,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:50:20,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:50:20,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:50:20,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:50:20,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:50:20,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 18:50:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:50:20,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:50:20,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:50:20,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 18:50:20,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:50:20,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 18:50:20,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:50:20,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:50:20,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:50:20,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:50:20,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:50:20,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 18:50:20,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 18:50:20,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:50:20,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:50:20,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:50:20,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 18:50:20,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:50:20,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 18:50:20,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:50:20,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:50:20,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:50:20,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:50:20,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:50:20,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:50:20,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 18:50:20,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:50:20,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:50:20,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:50:20,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 18:50:20,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:50:20,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 18:50:20,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:50:20,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:50:20,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:50:20,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:50:20,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:50:20,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 18:50:20,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 18:50:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:50:20,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:50:20,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:50:20,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 18:50:20,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:50:20,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 18:50:20,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:50:20,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:50:20,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:50:20,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:50:20,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:50:20,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:50:20,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 18:50:20,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:50:20,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:50:20,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:50:20,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 18:50:20,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:50:20,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 18:50:20,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:50:20,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:50:20,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:50:20,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:50:20,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:50:20,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:50:20,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 18:50:20,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:50:20,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:50:20,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:50:20,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:50:20,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:50:20,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 18:50:20,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:50:20,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:50:20,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:50:20,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:50:20,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:50:20,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:50:20,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 18:50:20,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:50:20,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:50:20,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:50:20,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-29 18:50:20,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:50:20,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 18:50:20,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:50:20,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:50:20,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:50:20,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-29 18:50:20,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:50:20,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:50:20,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 18:50:20,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:50:20,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:50:20,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:50:20,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 18:50:20,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:50:20,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 18:50:20,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:50:20,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:50:20,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:50:20,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:50:20,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:50:20,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:50:20,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 18:50:20,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:50:20,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:50:20,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:50:20,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:50:20,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:50:20,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 18:50:20,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:50:20,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:50:20,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:50:20,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:50:20,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:50:20,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:50:20,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-29 18:50:20,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:50:20,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:50:20,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:50:20,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 18:50:20,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:50:20,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 18:50:20,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:50:20,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:50:20,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:50:20,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:50:20,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:50:20,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:50:20,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 18:50:20,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:50:20,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:50:20,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:50:20,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:50:20,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:50:20,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 18:50:20,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:50:20,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:50:20,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:50:20,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 18:50:20,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:50:20,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:50:20,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 18:50:20,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:50:20,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:50:20,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:50:20,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:50:20,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:50:20,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 18:50:20,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:50:20,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:50:20,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:50:20,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 18:50:20,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:50:20,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:50:20,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-29 18:50:20,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 18:50:20,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 18:50:20,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 18:50:20,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 18:50:20,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 18:50:20,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 18:50:20,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 18:50:20,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 18:50:20,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 18:50:20,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 18:50:20,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 18:50:20,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 18:50:20,536 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-29 18:50:20,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1938857178] [2020-10-29 18:50:20,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 18:50:20,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 18:50:20,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810090399] [2020-10-29 18:50:20,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 18:50:20,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 18:50:20,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 18:50:20,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 18:50:20,538 INFO L87 Difference]: Start difference. First operand 5938 states and 7915 transitions. Second operand 7 states.