/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block 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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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 -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 0.1.25-adbd35c [2020-10-14 14:22:38,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 14:22:38,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 14:22:38,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 14:22:38,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 14:22:38,427 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 14:22:38,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 14:22:38,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 14:22:38,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 14:22:38,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 14:22:38,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 14:22:38,441 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 14:22:38,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 14:22:38,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 14:22:38,447 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 14:22:38,448 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 14:22:38,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 14:22:38,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 14:22:38,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 14:22:38,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 14:22:38,463 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 14:22:38,464 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 14:22:38,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 14:22:38,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 14:22:38,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 14:22:38,470 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 14:22:38,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 14:22:38,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 14:22:38,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 14:22:38,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 14:22:38,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 14:22:38,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 14:22:38,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 14:22:38,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 14:22:38,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 14:22:38,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 14:22:38,479 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 14:22:38,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 14:22:38,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 14:22:38,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 14:22:38,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 14:22:38,482 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 [2020-10-14 14:22:38,525 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 14:22:38,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 14:22:38,528 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 14:22:38,528 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 14:22:38,528 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 14:22:38,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 14:22:38,529 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 14:22:38,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 14:22:38,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 14:22:38,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 14:22:38,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 14:22:38,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 14:22:38,531 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 14:22:38,531 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 14:22:38,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 14:22:38,532 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 14:22:38,532 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 14:22:38,532 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 14:22:38,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 14:22:38,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 14:22:38,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 14:22:38,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 14:22:38,533 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 14:22:38,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 14:22:38,533 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 14:22:38,534 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 14:22:38,534 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-14 14:22:38,534 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> 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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 14:22:38,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 14:22:38,875 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 14:22:38,880 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 14:22:38,882 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 14:22:38,883 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 14:22:38,884 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i [2020-10-14 14:22:38,941 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea019f550/4b33123106dd4a29b3a34bc370a5234f/FLAG54f4cab14 [2020-10-14 14:22:39,543 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 14:22:39,543 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i [2020-10-14 14:22:39,572 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea019f550/4b33123106dd4a29b3a34bc370a5234f/FLAG54f4cab14 [2020-10-14 14:22:39,762 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea019f550/4b33123106dd4a29b3a34bc370a5234f [2020-10-14 14:22:39,769 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 14:22:39,771 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 14:22:39,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 14:22:39,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 14:22:39,775 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 14:22:39,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:22:39" (1/1) ... [2020-10-14 14:22:39,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@295985fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:22:39, skipping insertion in model container [2020-10-14 14:22:39,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:22:39" (1/1) ... [2020-10-14 14:22:39,788 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 14:22:39,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 14:22:40,360 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1753] [2020-10-14 14:22:40,360 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1754-1755] [2020-10-14 14:22:40,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 14:22:40,661 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 14:22:40,762 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1753] [2020-10-14 14:22:40,763 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1754-1755] [2020-10-14 14:22:40,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 14:22:40,925 INFO L208 MainTranslator]: Completed translation [2020-10-14 14:22:40,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:22:40 WrapperNode [2020-10-14 14:22:40,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 14:22:40,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 14:22:40,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 14:22:40,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 14:22:40,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:22:40" (1/1) ... [2020-10-14 14:22:40,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:22:40" (1/1) ... [2020-10-14 14:22:40,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:22:40" (1/1) ... [2020-10-14 14:22:40,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:22:40" (1/1) ... [2020-10-14 14:22:41,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:22:40" (1/1) ... [2020-10-14 14:22:41,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:22:40" (1/1) ... [2020-10-14 14:22:41,060 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:22:40" (1/1) ... [2020-10-14 14:22:41,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 14:22:41,083 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 14:22:41,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 14:22:41,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 14:22:41,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:22:40" (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 [2020-10-14 14:22:41,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 14:22:41,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 14:22:41,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~int [2020-10-14 14:22:41,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-14 14:22:41,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2020-10-14 14:22:41,205 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2020-10-14 14:22:41,205 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_weight [2020-10-14 14:22:41,206 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2020-10-14 14:22:41,206 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-10-14 14:22:41,206 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2020-10-14 14:22:41,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_1 [2020-10-14 14:22:41,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_5 [2020-10-14 14:22:41,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_8 [2020-10-14 14:22:41,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-14 14:22:41,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmalloc_12 [2020-10-14 14:22:41,211 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 14:22:41,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-14 14:22:41,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-14 14:22:41,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-14 14:22:41,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-14 14:22:41,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-14 14:22:41,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-14 14:22:41,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-14 14:22:41,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-14 14:22:41,214 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_lock [2020-10-14 14:22:41,215 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_delay [2020-10-14 14:22:41,215 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_unlock [2020-10-14 14:22:41,215 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_lock [2020-10-14 14:22:41,215 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_delay [2020-10-14 14:22:41,216 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_unlock [2020-10-14 14:22:41,216 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_lock_irq [2020-10-14 14:22:41,216 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_spin_write_unlock_irq [2020-10-14 14:22:41,217 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_writer [2020-10-14 14:22:41,217 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_printk [2020-10-14 14:22:41,217 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_stats_print [2020-10-14 14:22:41,219 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_stats [2020-10-14 14:22:41,220 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_print_module_parms [2020-10-14 14:22:41,221 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_cleanup [2020-10-14 14:22:41,221 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_init [2020-10-14 14:22:41,221 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 14:22:41,222 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2020-10-14 14:22:41,222 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2020-10-14 14:22:41,222 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-14 14:22:41,222 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-14 14:22:41,223 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-14 14:22:41,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-10-14 14:22:41,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-14 14:22:41,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-10-14 14:22:41,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-10-14 14:22:41,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-10-14 14:22:41,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-10-14 14:22:41,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitmap_weight [2020-10-14 14:22:41,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-10-14 14:22:41,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2020-10-14 14:22:41,226 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2020-10-14 14:22:41,226 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2020-10-14 14:22:41,226 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-14 14:22:41,227 INFO L138 BoogieDeclarations]: Found implementation of procedure _torture_create_kthread [2020-10-14 14:22:41,227 INFO L138 BoogieDeclarations]: Found implementation of procedure _torture_stop_kthread [2020-10-14 14:22:41,227 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-10-14 14:22:41,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-14 14:22:41,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-14 14:22:41,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2020-10-14 14:22:41,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_2 [2020-10-14 14:22:41,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_3 [2020-10-14 14:22:41,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-10-14 14:22:41,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2020-10-14 14:22:41,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_3 [2020-10-14 14:22:41,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-10-14 14:22:41,232 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-14 14:22:41,233 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2020-10-14 14:22:41,233 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2020-10-14 14:22:41,233 INFO L138 BoogieDeclarations]: Found implementation of procedure set_user_nice [2020-10-14 14:22:41,233 INFO L138 BoogieDeclarations]: Found implementation of procedure stutter_wait [2020-10-14 14:22:41,233 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_cleanup [2020-10-14 14:22:41,234 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_init_begin [2020-10-14 14:22:41,234 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_init_end [2020-10-14 14:22:41,234 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_kthread_stopping [2020-10-14 14:22:41,234 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_must_stop [2020-10-14 14:22:41,236 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_onoff_failures [2020-10-14 14:22:41,236 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_onoff_init [2020-10-14 14:22:41,236 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_random [2020-10-14 14:22:41,236 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_shuffle_init [2020-10-14 14:22:41,237 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_shutdown_absorb [2020-10-14 14:22:41,237 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_shutdown_init [2020-10-14 14:22:41,237 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_stutter_init [2020-10-14 14:22:41,238 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-14 14:22:41,238 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-14 14:22:41,238 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-14 14:22:41,238 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 14:22:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-14 14:22:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-10-14 14:22:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-10-14 14:22:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-14 14:22:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-10-14 14:22:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-10-14 14:22:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-14 14:22:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2020-10-14 14:22:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-10-14 14:22:41,241 INFO L130 BoogieDeclarations]: Found specification of procedure __bitmap_weight [2020-10-14 14:22:41,241 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_weight [2020-10-14 14:22:41,241 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2020-10-14 14:22:41,241 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-10-14 14:22:41,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 14:22:41,242 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2020-10-14 14:22:41,242 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2020-10-14 14:22:41,242 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2020-10-14 14:22:41,242 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-14 14:22:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_1 [2020-10-14 14:22:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2020-10-14 14:22:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_5 [2020-10-14 14:22:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2020-10-14 14:22:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_8 [2020-10-14 14:22:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-14 14:22:41,245 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-14 14:22:41,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-14 14:22:41,245 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-14 14:22:41,246 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-10-14 14:22:41,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmalloc_12 [2020-10-14 14:22:41,246 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-14 14:22:41,246 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-14 14:22:41,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-10-14 14:22:41,248 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 14:22:41,248 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 14:22:41,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 14:22:41,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-14 14:22:41,252 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 14:22:41,252 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 14:22:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 14:22:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-14 14:22:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-14 14:22:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-14 14:22:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-14 14:22:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-14 14:22:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-14 14:22:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-14 14:22:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2020-10-14 14:22:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2020-10-14 14:22:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure set_user_nice [2020-10-14 14:22:41,255 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2020-10-14 14:22:41,256 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-10-14 14:22:41,263 INFO L130 BoogieDeclarations]: Found specification of procedure torture_onoff_init [2020-10-14 14:22:41,263 INFO L130 BoogieDeclarations]: Found specification of procedure torture_onoff_failures [2020-10-14 14:22:41,263 INFO L130 BoogieDeclarations]: Found specification of procedure torture_random [2020-10-14 14:22:41,263 INFO L130 BoogieDeclarations]: Found specification of procedure torture_shuffle_init [2020-10-14 14:22:41,264 INFO L130 BoogieDeclarations]: Found specification of procedure torture_shutdown_absorb [2020-10-14 14:22:41,264 INFO L130 BoogieDeclarations]: Found specification of procedure torture_shutdown_init [2020-10-14 14:22:41,264 INFO L130 BoogieDeclarations]: Found specification of procedure stutter_wait [2020-10-14 14:22:41,264 INFO L130 BoogieDeclarations]: Found specification of procedure torture_stutter_init [2020-10-14 14:22:41,265 INFO L130 BoogieDeclarations]: Found specification of procedure torture_init_begin [2020-10-14 14:22:41,265 INFO L130 BoogieDeclarations]: Found specification of procedure torture_init_end [2020-10-14 14:22:41,265 INFO L130 BoogieDeclarations]: Found specification of procedure torture_cleanup [2020-10-14 14:22:41,265 INFO L130 BoogieDeclarations]: Found specification of procedure torture_must_stop [2020-10-14 14:22:41,265 INFO L130 BoogieDeclarations]: Found specification of procedure torture_kthread_stopping [2020-10-14 14:22:41,265 INFO L130 BoogieDeclarations]: Found specification of procedure _torture_create_kthread [2020-10-14 14:22:41,265 INFO L130 BoogieDeclarations]: Found specification of procedure _torture_stop_kthread [2020-10-14 14:22:41,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 14:22:41,266 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_cleanup [2020-10-14 14:22:41,266 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_lock [2020-10-14 14:22:41,266 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_delay [2020-10-14 14:22:41,266 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_unlock [2020-10-14 14:22:41,266 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_lock [2020-10-14 14:22:41,266 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_delay [2020-10-14 14:22:41,266 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_unlock [2020-10-14 14:22:41,266 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_lock_irq [2020-10-14 14:22:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 14:22:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_spin_write_unlock_irq [2020-10-14 14:22:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_writer [2020-10-14 14:22:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~int [2020-10-14 14:22:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-14 14:22:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2020-10-14 14:22:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 14:22:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 14:22:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_printk [2020-10-14 14:22:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_stats_print [2020-10-14 14:22:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_stats [2020-10-14 14:22:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_print_module_parms [2020-10-14 14:22:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_init [2020-10-14 14:22:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 14:22:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2020-10-14 14:22:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-14 14:22:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2020-10-14 14:22:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-14 14:22:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_3 [2020-10-14 14:22:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_3 [2020-10-14 14:22:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_2 [2020-10-14 14:22:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-10-14 14:22:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 14:22:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-10-14 14:22:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-14 14:22:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-10-14 14:22:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-10-14 14:22:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-14 14:22:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 14:22:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 14:22:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 14:22:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 14:22:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-14 14:22:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 14:22:42,134 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-14 14:22:50,837 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 14:22:50,838 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 14:22:50,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:22:50 BoogieIcfgContainer [2020-10-14 14:22:50,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 14:22:50,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 14:22:50,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 14:22:50,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 14:22:50,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:22:39" (1/3) ... [2020-10-14 14:22:50,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d95b785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:22:50, skipping insertion in model container [2020-10-14 14:22:50,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:22:40" (2/3) ... [2020-10-14 14:22:50,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d95b785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:22:50, skipping insertion in model container [2020-10-14 14:22:50,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:22:50" (3/3) ... [2020-10-14 14:22:50,854 INFO L109 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i [2020-10-14 14:22:50,866 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 14:22:50,874 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 14:22:50,888 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 14:22:50,913 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 14:22:50,913 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 14:22:50,913 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 14:22:50,913 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 14:22:50,913 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 14:22:50,913 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 14:22:50,913 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 14:22:50,914 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 14:22:50,945 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states. [2020-10-14 14:22:50,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-14 14:22:50,962 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 14:22:50,963 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] [2020-10-14 14:22:50,964 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 14:22:50,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 14:22:50,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1335617973, now seen corresponding path program 1 times [2020-10-14 14:22:50,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 14:22:50,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1145264806] [2020-10-14 14:22:50,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 14:22:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:22:51,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:22:52,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:22:53,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:22:53,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 14:22:53,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 14:22:53,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1868 [2020-10-14 14:22:53,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:22:53,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:22:53,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:22:53,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-14 14:22:53,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 14:22:53,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 14:22:54,429 WARN L193 SmtUtils]: Spent 930.00 ms on a formula simplification that was a NOOP. DAG size: 397 [2020-10-14 14:22:54,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 14:22:54,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:22:54,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:22:54,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:22:54,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:22:54,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:22:54,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-14 14:22:54,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:22:54,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:22:54,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:22:54,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:22:54,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:22:54,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:22:54,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 14:22:54,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:22:54,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:22:54,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:22:54,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:22:54,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:22:54,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 14:22:54,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:22:54,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:22:54,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:22:54,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:22:54,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:22:54,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 14:22:54,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 14:22:54,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:22:54,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:22:54,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:22:54,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:22:54,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:22:54,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 14:22:54,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:22:54,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:22:54,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:22:54,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:22:54,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:22:54,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:22:54,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 14:22:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:22:54,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:22:54,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:22:54,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:22:54,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:22:54,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 14:22:54,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:22:54,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:22:54,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:22:54,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:22:54,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:22:54,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:22:54,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 14:22:54,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:22:54,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:22:54,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:22:54,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 14:22:54,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:22:54,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 14:22:54,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:22:54,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:22:54,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:22:54,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:22:54,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:22:54,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:22:54,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 14:22:54,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:22:54,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:22:54,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:22:54,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:22:54,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:22:54,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 14:22:54,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:22:54,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:22:54,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:22:54,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 14:22:54,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:22:54,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:22:54,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 14:22:54,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:22:54,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:22:54,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:22:54,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:22:54,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:22:54,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 14:22:54,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:22:54,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:22:54,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:22:54,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 14:22:54,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:22:54,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:22:54,770 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 14:22:54,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1145264806] [2020-10-14 14:22:54,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 14:22:54,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 14:22:54,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898839515] [2020-10-14 14:22:54,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 14:22:54,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 14:22:54,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 14:22:54,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 14:22:54,804 INFO L87 Difference]: Start difference. First operand 579 states. Second operand 5 states. [2020-10-14 14:22:55,655 WARN L193 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 400 [2020-10-14 14:22:56,774 WARN L193 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 402 [2020-10-14 14:22:57,596 WARN L193 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 399 [2020-10-14 14:23:18,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 14:23:18,493 INFO L93 Difference]: Finished difference Result 1446 states and 1956 transitions. [2020-10-14 14:23:18,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 14:23:18,495 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 56 [2020-10-14 14:23:18,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 14:23:18,519 INFO L225 Difference]: With dead ends: 1446 [2020-10-14 14:23:18,519 INFO L226 Difference]: Without dead ends: 850 [2020-10-14 14:23:18,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 14:23:18,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2020-10-14 14:23:18,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 698. [2020-10-14 14:23:18,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 698 states. [2020-10-14 14:23:18,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 895 transitions. [2020-10-14 14:23:18,789 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 895 transitions. Word has length 56 [2020-10-14 14:23:18,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 14:23:18,789 INFO L479 AbstractCegarLoop]: Abstraction has 698 states and 895 transitions. [2020-10-14 14:23:18,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 14:23:18,790 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 895 transitions. [2020-10-14 14:23:18,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-14 14:23:18,797 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 14:23:18,797 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, 1, 1] [2020-10-14 14:23:18,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 14:23:18,797 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 14:23:18,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 14:23:18,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1068779582, now seen corresponding path program 1 times [2020-10-14 14:23:18,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 14:23:18,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [119207869] [2020-10-14 14:23:18,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 14:23:18,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:23:18,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:23:19,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:23:19,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:23:21,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:23:21,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-14 14:23:21,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 14:23:21,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2523 [2020-10-14 14:23:21,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:23:21,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:23:21,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:23:21,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 14:23:21,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 14:23:21,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:23:22,260 WARN L193 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 397 [2020-10-14 14:23:22,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 14:23:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:23:22,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:23:22,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:23:22,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:23:22,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:23:22,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-10-14 14:23:22,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:23:22,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:23:22,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:23:22,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:23:22,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 14:23:22,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:23:22,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 14:23:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:23:22,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:23:22,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:23:22,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:23:22,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:23:22,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 14:23:22,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:23:22,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:23:22,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:23:22,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:23:22,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 14:23:22,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:23:22,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 14:23:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:23:22,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:23:22,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:23:22,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:23:22,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:23:22,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 14:23:22,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:23:22,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:23:22,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:23:22,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:23:22,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 14:23:22,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:23:22,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 14:23:22,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:23:22,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:23:22,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:23:22,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:23:22,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:23:22,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 14:23:22,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:23:22,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:23:22,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:23:22,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:23:22,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 14:23:22,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:23:22,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 14:23:22,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:23:22,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:23:22,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:23:22,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 14:23:22,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:23:22,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 14:23:22,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:23:22,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:23:22,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:23:22,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:23:22,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 14:23:22,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:23:22,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 14:23:22,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:23:22,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:23:22,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:23:22,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:23:22,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:23:22,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 14:23:22,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:23:22,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:23:22,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:23:22,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:23:22,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 14:23:22,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:23:22,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 14:23:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:23:22,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:23:22,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:23:22,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:23:22,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:23:22,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 14:23:22,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:23:22,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:23:22,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:23:22,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 14:23:22,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:23:22,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:23:22,676 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 14:23:22,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [119207869] [2020-10-14 14:23:22,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 14:23:22,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 14:23:22,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829331450] [2020-10-14 14:23:22,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 14:23:22,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 14:23:22,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 14:23:22,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 14:23:22,680 INFO L87 Difference]: Start difference. First operand 698 states and 895 transitions. Second operand 5 states. [2020-10-14 14:23:23,462 WARN L193 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 400 [2020-10-14 14:23:24,629 WARN L193 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 404 [2020-10-14 14:23:25,465 WARN L193 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 401 [2020-10-14 14:23:40,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 14:23:40,851 INFO L93 Difference]: Finished difference Result 1528 states and 2018 transitions. [2020-10-14 14:23:40,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 14:23:40,852 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-10-14 14:23:40,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 14:23:40,861 INFO L225 Difference]: With dead ends: 1528 [2020-10-14 14:23:40,861 INFO L226 Difference]: Without dead ends: 857 [2020-10-14 14:23:40,864 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 14:23:40,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2020-10-14 14:23:41,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 706. [2020-10-14 14:23:41,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-10-14 14:23:41,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 901 transitions. [2020-10-14 14:23:41,037 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 901 transitions. Word has length 60 [2020-10-14 14:23:41,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 14:23:41,038 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 901 transitions. [2020-10-14 14:23:41,038 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 14:23:41,038 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 901 transitions. [2020-10-14 14:23:41,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-14 14:23:41,042 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 14:23:41,043 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 14:23:41,043 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 14:23:41,043 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 14:23:41,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 14:23:41,044 INFO L82 PathProgramCache]: Analyzing trace with hash 406953611, now seen corresponding path program 1 times [2020-10-14 14:23:41,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 14:23:41,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1933890660] [2020-10-14 14:23:41,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 14:23:41,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:23:41,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:23:41,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:23:43,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:23:43,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 14:23:43,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 14:23:43,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2144 [2020-10-14 14:23:43,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:23:43,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:23:43,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:23:43,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-14 14:23:43,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 14:23:43,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:23:44,149 WARN L193 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 397 [2020-10-14 14:23:44,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 14:23:44,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:23:44,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:23:44,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:23:44,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:23:44,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:23:44,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 14:23:44,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:23:44,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:23:44,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:23:44,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:23:44,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:23:44,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:23:44,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 14:23:44,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:23:44,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:23:44,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:23:44,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:23:44,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:23:44,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 14:23:44,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:23:44,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:23:44,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:23:44,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:23:44,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:23:44,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:23:44,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 14:23:44,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:23:44,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:23:44,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:23:44,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:23:44,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:23:44,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 14:23:44,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:23:44,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:23:44,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:23:44,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:23:44,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:23:44,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:23:44,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 14:23:44,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:23:44,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:23:44,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:23:44,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:23:44,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:23:44,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 14:23:44,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:23:44,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:23:44,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:23:44,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:23:44,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:23:44,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:23:44,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 14:23:44,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:23:44,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:23:44,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:23:44,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 14:23:44,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:23:44,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 14:23:44,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:23:44,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:23:44,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:23:44,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:23:44,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:23:44,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:23:44,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 14:23:44,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:23:44,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:23:44,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:23:44,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:23:44,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:23:44,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 14:23:44,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:23:44,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:23:44,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:23:44,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:23:44,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:23:44,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:23:44,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 14:23:44,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:23:44,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:23:44,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:23:44,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:23:44,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:23:44,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 14:23:44,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:23:44,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:23:44,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:23:44,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 14:23:44,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:23:44,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:23:44,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 14:23:44,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:23:44,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:23:44,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:23:44,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:23:44,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:23:44,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 14:23:44,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:23:44,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:23:44,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:23:44,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 14:23:44,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:23:44,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:23:44,375 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 14:23:44,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1933890660] [2020-10-14 14:23:44,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 14:23:44,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 14:23:44,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204191617] [2020-10-14 14:23:44,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 14:23:44,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 14:23:44,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 14:23:44,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 14:23:44,377 INFO L87 Difference]: Start difference. First operand 706 states and 901 transitions. Second operand 5 states. [2020-10-14 14:23:45,158 WARN L193 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 400 [2020-10-14 14:23:59,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 14:23:59,080 INFO L93 Difference]: Finished difference Result 1590 states and 2117 transitions. [2020-10-14 14:23:59,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 14:23:59,081 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 71 [2020-10-14 14:23:59,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 14:23:59,088 INFO L225 Difference]: With dead ends: 1590 [2020-10-14 14:23:59,088 INFO L226 Difference]: Without dead ends: 911 [2020-10-14 14:23:59,090 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 14:23:59,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2020-10-14 14:23:59,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 711. [2020-10-14 14:23:59,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 711 states. [2020-10-14 14:23:59,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 907 transitions. [2020-10-14 14:23:59,224 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 907 transitions. Word has length 71 [2020-10-14 14:23:59,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 14:23:59,224 INFO L479 AbstractCegarLoop]: Abstraction has 711 states and 907 transitions. [2020-10-14 14:23:59,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 14:23:59,225 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 907 transitions. [2020-10-14 14:23:59,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-14 14:23:59,228 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 14:23:59,228 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 14:23:59,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 14:23:59,228 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 14:23:59,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 14:23:59,229 INFO L82 PathProgramCache]: Analyzing trace with hash 742445324, now seen corresponding path program 1 times [2020-10-14 14:23:59,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 14:23:59,229 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2099392224] [2020-10-14 14:23:59,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 14:23:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:23:59,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:23:59,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:01,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:04,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:04,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-14 14:24:04,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 14:24:04,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5070 [2020-10-14 14:24:04,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:04,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:04,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 14:24:04,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 14:24:04,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 14:24:04,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:24:05,212 WARN L193 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 397 [2020-10-14 14:24:05,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 14:24:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:05,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:05,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:05,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:24:05,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:24:05,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-14 14:24:05,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:05,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:05,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:24:05,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:24:05,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 14:24:05,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:24:05,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 14:24:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:05,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:05,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:05,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:24:05,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:24:05,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 14:24:05,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:05,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:05,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:24:05,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:24:05,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 14:24:05,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:24:05,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 14:24:05,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:05,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:05,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:05,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:24:05,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:24:05,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 14:24:05,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:05,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:05,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:24:05,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:24:05,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 14:24:05,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:24:05,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 14:24:05,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:05,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:05,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:05,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:24:05,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:24:05,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 14:24:05,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:05,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:05,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:24:05,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:24:05,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 14:24:05,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:24:05,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 14:24:05,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:05,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:05,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:05,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 14:24:05,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:24:05,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 14:24:05,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:05,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:05,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:24:05,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:24:05,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 14:24:05,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 14:24:05,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 14:24:05,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:05,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:05,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:05,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:24:05,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:24:05,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 14:24:05,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:05,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:05,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:24:05,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:24:05,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 14:24:05,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:24:05,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-14 14:24:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:05,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:05,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:05,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:24:05,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:24:05,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 14:24:05,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:05,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:05,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:24:05,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:24:05,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 14:24:05,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:24:05,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 14:24:05,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:05,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:05,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:05,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:24:05,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:24:05,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 14:24:05,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:05,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:05,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:24:05,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:24:05,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 14:24:05,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:24:05,616 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 14:24:05,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2099392224] [2020-10-14 14:24:05,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 14:24:05,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 14:24:05,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753451558] [2020-10-14 14:24:05,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 14:24:05,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 14:24:05,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 14:24:05,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 14:24:05,620 INFO L87 Difference]: Start difference. First operand 711 states and 907 transitions. Second operand 5 states. [2020-10-14 14:24:06,522 WARN L193 SmtUtils]: Spent 890.00 ms on a formula simplification that was a NOOP. DAG size: 400 [2020-10-14 14:24:07,554 WARN L193 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 402 [2020-10-14 14:24:08,314 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification that was a NOOP. DAG size: 399 [2020-10-14 14:24:28,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 14:24:28,288 INFO L93 Difference]: Finished difference Result 1560 states and 2150 transitions. [2020-10-14 14:24:28,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 14:24:28,288 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 73 [2020-10-14 14:24:28,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 14:24:28,300 INFO L225 Difference]: With dead ends: 1560 [2020-10-14 14:24:28,300 INFO L226 Difference]: Without dead ends: 1527 [2020-10-14 14:24:28,301 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 14:24:28,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2020-10-14 14:24:28,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1202. [2020-10-14 14:24:28,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1202 states. [2020-10-14 14:24:28,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 1580 transitions. [2020-10-14 14:24:28,558 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 1580 transitions. Word has length 73 [2020-10-14 14:24:28,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 14:24:28,559 INFO L479 AbstractCegarLoop]: Abstraction has 1202 states and 1580 transitions. [2020-10-14 14:24:28,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 14:24:28,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 1580 transitions. [2020-10-14 14:24:28,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-14 14:24:28,562 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 14:24:28,562 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] [2020-10-14 14:24:28,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 14:24:28,563 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 14:24:28,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 14:24:28,563 INFO L82 PathProgramCache]: Analyzing trace with hash 399095164, now seen corresponding path program 1 times [2020-10-14 14:24:28,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 14:24:28,563 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1151036792] [2020-10-14 14:24:28,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 14:24:28,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:28,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:28,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:29,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:30,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:33,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:33,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 14:24:33,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 14:24:33,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5083 [2020-10-14 14:24:33,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:33,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:33,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:24:33,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-14 14:24:33,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 14:24:33,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:24:34,622 WARN L193 SmtUtils]: Spent 859.00 ms on a formula simplification that was a NOOP. DAG size: 397 [2020-10-14 14:24:34,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 14:24:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:34,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:34,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:34,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:24:34,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:24:34,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 14:24:34,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:34,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:34,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:24:34,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:24:34,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:24:34,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:24:34,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 14:24:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:34,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:34,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:34,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:24:34,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:24:34,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 14:24:34,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:34,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:34,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:24:34,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:24:34,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:24:34,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:24:34,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 14:24:34,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:34,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:34,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:34,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:24:34,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:24:34,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 14:24:34,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:34,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:34,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:24:34,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:24:34,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:24:34,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:24:34,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 14:24:34,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:34,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:34,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:34,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:24:34,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:24:34,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 14:24:34,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:34,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:34,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:24:34,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:24:34,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:24:34,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:24:34,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 14:24:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:34,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:34,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:34,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 14:24:34,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:24:34,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 14:24:34,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:34,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:34,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:24:34,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:24:34,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:24:34,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:24:34,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 14:24:34,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:34,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:34,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:34,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 14:24:34,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:24:34,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 14:24:34,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:34,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:34,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:24:34,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 14:24:34,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:24:34,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:24:34,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:24:34,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:34,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:34,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:34,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:24:34,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:24:34,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 14:24:34,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:34,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:34,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:24:34,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:24:34,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:24:34,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:24:34,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 14:24:34,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:34,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:34,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:34,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:24:34,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:24:34,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 14:24:34,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:34,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:34,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:24:34,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 14:24:34,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:24:34,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:24:34,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 14:24:34,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:34,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:34,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:34,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:24:34,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:24:34,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 14:24:34,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:34,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:34,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:24:34,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 14:24:34,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:24:34,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:24:34,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 14:24:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:24:34,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:24:34,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:24:34,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:24:34,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:24:34,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 14:24:34,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:24:34,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:24:34,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:24:34,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 14:24:34,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:24:34,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:24:34,890 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 14:24:34,895 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1151036792] [2020-10-14 14:24:34,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 14:24:34,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 14:24:34,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109195818] [2020-10-14 14:24:34,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 14:24:34,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 14:24:34,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 14:24:34,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-14 14:24:34,898 INFO L87 Difference]: Start difference. First operand 1202 states and 1580 transitions. Second operand 7 states. [2020-10-14 14:24:35,664 WARN L193 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 406 [2020-10-14 14:24:36,910 WARN L193 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 408 [2020-10-14 14:24:37,747 WARN L193 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 399 [2020-10-14 14:25:01,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 14:25:01,352 INFO L93 Difference]: Finished difference Result 4283 states and 6001 transitions. [2020-10-14 14:25:01,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 14:25:01,359 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2020-10-14 14:25:01,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 14:25:01,380 INFO L225 Difference]: With dead ends: 4283 [2020-10-14 14:25:01,380 INFO L226 Difference]: Without dead ends: 3108 [2020-10-14 14:25:01,385 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-14 14:25:01,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3108 states. [2020-10-14 14:25:01,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3108 to 2262. [2020-10-14 14:25:01,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2262 states. [2020-10-14 14:25:01,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2262 states to 2262 states and 3014 transitions. [2020-10-14 14:25:01,859 INFO L78 Accepts]: Start accepts. Automaton has 2262 states and 3014 transitions. Word has length 88 [2020-10-14 14:25:01,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 14:25:01,863 INFO L479 AbstractCegarLoop]: Abstraction has 2262 states and 3014 transitions. [2020-10-14 14:25:01,863 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 14:25:01,863 INFO L276 IsEmpty]: Start isEmpty. Operand 2262 states and 3014 transitions. [2020-10-14 14:25:01,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-14 14:25:01,870 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 14:25:01,870 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] [2020-10-14 14:25:01,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 14:25:01,871 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 14:25:01,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 14:25:01,871 INFO L82 PathProgramCache]: Analyzing trace with hash 794159234, now seen corresponding path program 1 times [2020-10-14 14:25:01,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 14:25:01,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1552724894] [2020-10-14 14:25:01,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 14:25:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:01,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:02,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:02,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:02,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:04,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:04,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 14:25:04,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 14:25:04,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2446 [2020-10-14 14:25:04,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:04,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:04,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:25:04,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-10-14 14:25:04,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 14:25:04,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:25:05,409 WARN L193 SmtUtils]: Spent 964.00 ms on a formula simplification that was a NOOP. DAG size: 397 [2020-10-14 14:25:05,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 14:25:05,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:05,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:05,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:05,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:25:05,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:05,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-14 14:25:05,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:05,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:05,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:05,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:25:05,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:05,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:25:05,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 14:25:05,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:05,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:05,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:05,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:25:05,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:05,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 14:25:05,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:05,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:05,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:05,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:25:05,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:05,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:25:05,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 14:25:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:05,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:05,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:05,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:25:05,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:05,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 14:25:05,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:05,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:05,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:05,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:25:05,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:05,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:25:05,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 14:25:05,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:05,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:05,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:05,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:25:05,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:05,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 14:25:05,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:05,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:05,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:05,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:25:05,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:05,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:25:05,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 14:25:05,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:05,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:05,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:05,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 14:25:05,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:05,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 14:25:05,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:05,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:05,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:05,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:25:05,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:05,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:25:05,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 14:25:05,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:05,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:05,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:05,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:05,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 14:25:05,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 14:25:05,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 14:25:05,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:05,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:05,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:05,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:25:05,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:05,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:25:05,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:25:05,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:05,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:05,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:05,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:25:05,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:05,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 14:25:05,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:05,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:05,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:05,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:25:05,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:05,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:25:05,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 14:25:05,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:05,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:05,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:05,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 14:25:05,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:05,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 14:25:05,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:05,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:05,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:05,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 14:25:05,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:05,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:25:05,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:25:05,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:05,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:05,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:05,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:25:05,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:05,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 14:25:05,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:05,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:05,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:05,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:25:05,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:05,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:25:05,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 14:25:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:05,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:05,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:05,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:25:05,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:05,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 14:25:05,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:05,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:05,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:05,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 14:25:05,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:05,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:25:05,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 14:25:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:05,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:05,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:05,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:25:05,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:05,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 14:25:05,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:05,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:05,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:05,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 14:25:05,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:05,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:25:05,802 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 14:25:05,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1552724894] [2020-10-14 14:25:05,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 14:25:05,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 14:25:05,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319796703] [2020-10-14 14:25:05,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 14:25:05,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 14:25:05,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 14:25:05,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-14 14:25:05,804 INFO L87 Difference]: Start difference. First operand 2262 states and 3014 transitions. Second operand 8 states. [2020-10-14 14:25:06,571 WARN L193 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 406 [2020-10-14 14:25:07,907 WARN L193 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 408 [2020-10-14 14:25:08,721 WARN L193 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 399 [2020-10-14 14:25:30,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 14:25:30,185 INFO L93 Difference]: Finished difference Result 6607 states and 9171 transitions. [2020-10-14 14:25:30,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 14:25:30,186 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 92 [2020-10-14 14:25:30,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 14:25:30,221 INFO L225 Difference]: With dead ends: 6607 [2020-10-14 14:25:30,221 INFO L226 Difference]: Without dead ends: 4372 [2020-10-14 14:25:30,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-14 14:25:30,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4372 states. [2020-10-14 14:25:31,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4372 to 3288. [2020-10-14 14:25:31,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3288 states. [2020-10-14 14:25:31,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3288 states to 3288 states and 4396 transitions. [2020-10-14 14:25:31,108 INFO L78 Accepts]: Start accepts. Automaton has 3288 states and 4396 transitions. Word has length 92 [2020-10-14 14:25:31,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 14:25:31,109 INFO L479 AbstractCegarLoop]: Abstraction has 3288 states and 4396 transitions. [2020-10-14 14:25:31,109 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 14:25:31,109 INFO L276 IsEmpty]: Start isEmpty. Operand 3288 states and 4396 transitions. [2020-10-14 14:25:31,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-14 14:25:31,122 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 14:25:31,122 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] [2020-10-14 14:25:31,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 14:25:31,123 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 14:25:31,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 14:25:31,123 INFO L82 PathProgramCache]: Analyzing trace with hash -634425988, now seen corresponding path program 1 times [2020-10-14 14:25:31,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 14:25:31,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1217328063] [2020-10-14 14:25:31,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 14:25:31,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:31,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:31,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:32,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:35,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:36,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:36,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-14 14:25:36,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 14:25:36,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-14 14:25:36,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:36,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:36,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:25:36,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-14 14:25:36,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 14:25:36,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:25:37,413 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 397 [2020-10-14 14:25:37,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 14:25:37,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:37,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:37,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:37,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:25:37,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:37,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 14:25:37,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:37,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:37,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:37,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:25:37,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:37,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:25:37,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 14:25:37,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:37,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:37,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:37,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:25:37,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:37,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 14:25:37,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:37,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:37,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:37,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:25:37,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:37,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:25:37,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 14:25:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:37,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:37,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:37,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:25:37,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:37,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 14:25:37,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:37,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:37,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:37,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:25:37,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:37,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:25:37,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 14:25:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:37,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:37,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:37,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:25:37,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:37,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 14:25:37,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:37,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:37,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:37,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:25:37,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:37,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:25:37,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 14:25:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:37,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:37,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:37,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 14:25:37,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:37,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 14:25:37,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:37,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:37,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:37,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:25:37,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:37,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:25:37,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 14:25:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:37,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:37,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:37,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 14:25:37,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:37,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 14:25:37,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:37,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:37,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:37,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 14:25:37,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:37,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:25:37,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 14:25:37,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:37,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:37,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:37,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 14:25:37,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:37,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 14:25:37,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:37,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:37,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:37,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:25:37,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:37,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:25:37,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:25:37,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:37,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:37,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:37,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:25:37,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:37,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 14:25:37,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:37,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:37,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:37,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:25:37,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:37,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:25:37,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 14:25:37,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:37,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:37,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:37,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 14:25:37,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:37,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 14:25:37,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:37,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:37,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:37,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:25:37,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:37,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:25:37,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:25:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:37,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:37,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:37,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:25:37,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:37,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 14:25:37,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:37,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:37,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:37,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:25:37,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:37,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:25:37,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 14:25:37,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:37,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:37,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:37,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:25:37,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:37,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 14:25:37,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:37,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:37,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:37,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 14:25:37,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:37,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:25:37,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 14:25:37,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:37,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:37,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:37,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:25:37,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:37,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 14:25:37,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:37,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:37,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:37,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 14:25:37,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:37,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:25:37,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-14 14:25:37,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:25:37,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:25:37,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:25:37,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:25:37,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:25:37,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 14:25:37,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:25:37,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:25:37,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:25:37,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 14:25:37,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:25:37,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:25:37,784 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 14:25:37,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1217328063] [2020-10-14 14:25:37,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 14:25:37,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 14:25:37,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049331870] [2020-10-14 14:25:37,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 14:25:37,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 14:25:37,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 14:25:37,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 14:25:37,788 INFO L87 Difference]: Start difference. First operand 3288 states and 4396 transitions. Second operand 6 states. [2020-10-14 14:25:38,600 WARN L193 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 400 [2020-10-14 14:25:39,814 WARN L193 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 402 [2020-10-14 14:25:40,714 WARN L193 SmtUtils]: Spent 833.00 ms on a formula simplification that was a NOOP. DAG size: 399 [2020-10-14 14:26:05,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 14:26:05,054 INFO L93 Difference]: Finished difference Result 10899 states and 15137 transitions. [2020-10-14 14:26:05,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 14:26:05,055 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2020-10-14 14:26:05,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 14:26:05,096 INFO L225 Difference]: With dead ends: 10899 [2020-10-14 14:26:05,096 INFO L226 Difference]: Without dead ends: 7638 [2020-10-14 14:26:05,106 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-14 14:26:05,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7638 states. [2020-10-14 14:26:06,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7638 to 6103. [2020-10-14 14:26:06,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6103 states. [2020-10-14 14:26:06,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6103 states to 6103 states and 8170 transitions. [2020-10-14 14:26:06,024 INFO L78 Accepts]: Start accepts. Automaton has 6103 states and 8170 transitions. Word has length 102 [2020-10-14 14:26:06,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 14:26:06,025 INFO L479 AbstractCegarLoop]: Abstraction has 6103 states and 8170 transitions. [2020-10-14 14:26:06,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 14:26:06,025 INFO L276 IsEmpty]: Start isEmpty. Operand 6103 states and 8170 transitions. [2020-10-14 14:26:06,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-14 14:26:06,039 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 14:26:06,039 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] [2020-10-14 14:26:06,040 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 14:26:06,040 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 14:26:06,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 14:26:06,040 INFO L82 PathProgramCache]: Analyzing trace with hash 255836610, now seen corresponding path program 1 times [2020-10-14 14:26:06,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 14:26:06,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [759035301] [2020-10-14 14:26:06,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 14:26:06,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:06,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:06,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:06,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:06,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:07,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:07,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-14 14:26:07,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 14:26:07,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1885 [2020-10-14 14:26:07,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:07,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:07,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 14:26:07,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-10-14 14:26:07,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 14:26:07,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:26:08,755 WARN L193 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 397 [2020-10-14 14:26:08,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 14:26:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:08,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:08,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:08,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:26:08,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:08,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 14:26:08,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:08,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:08,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:08,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:26:08,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:08,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:26:08,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 14:26:08,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:08,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:08,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:08,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:26:08,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:08,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 14:26:08,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:08,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:08,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:08,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:26:08,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:08,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:26:08,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 14:26:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:08,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:08,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:08,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:26:08,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:08,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 14:26:08,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:08,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:08,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:08,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:26:08,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:08,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:26:08,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 14:26:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:08,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:08,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:08,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 14:26:08,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:08,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 14:26:08,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:08,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:08,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:08,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:26:08,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:08,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:26:08,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 14:26:08,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:08,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:08,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:08,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 14:26:08,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:08,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 14:26:08,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:08,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:08,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:08,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:26:08,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:08,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:26:08,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 14:26:08,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:08,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:08,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:08,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:08,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 14:26:08,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 14:26:08,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 14:26:08,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:08,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:08,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:08,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:26:08,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:08,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:26:08,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:26:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:08,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:08,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:08,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:26:08,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:08,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 14:26:08,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:08,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:08,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:08,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:26:08,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:08,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:26:08,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 14:26:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:08,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:08,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:08,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 14:26:08,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:08,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 14:26:08,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:08,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:08,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:08,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 14:26:08,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:08,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:26:08,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 14:26:08,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:08,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:08,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:08,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 14:26:08,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:08,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 14:26:08,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:08,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:08,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:08,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:26:08,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:08,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:26:08,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:26:08,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:08,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:08,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:08,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:26:08,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:08,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 14:26:08,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:08,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:08,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:08,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:26:08,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:08,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:26:08,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 14:26:08,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:08,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:08,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:08,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 14:26:08,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:08,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 14:26:08,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:08,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:08,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:08,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:26:08,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:08,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:26:08,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 14:26:08,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:08,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:08,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:08,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:26:08,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:08,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 14:26:08,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:08,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:08,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:08,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 14:26:08,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:08,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 14:26:08,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 14:26:08,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:09,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:09,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:09,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:26:09,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:09,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 14:26:09,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:09,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:09,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:09,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 14:26:09,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:09,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:26:09,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 14:26:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 14:26:09,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 14:26:09,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 14:26:09,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 14:26:09,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 14:26:09,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 14:26:09,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 14:26:09,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 14:26:09,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 14:26:09,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 14:26:09,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 14:26:09,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 14:26:09,162 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 14:26:09,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [759035301] [2020-10-14 14:26:09,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 14:26:09,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 14:26:09,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995086583] [2020-10-14 14:26:09,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 14:26:09,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 14:26:09,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 14:26:09,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 14:26:09,164 INFO L87 Difference]: Start difference. First operand 6103 states and 8170 transitions. Second operand 7 states. [2020-10-14 14:26:09,931 WARN L193 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 406 [2020-10-14 14:26:11,133 WARN L193 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 408 [2020-10-14 14:26:11,954 WARN L193 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 399